109 files changed, 2184 insertions, 1264 deletions
diff --git a/test/README.md b/test/README.md
index 868eb667ae..b59c8db4e5 100644
--- a/test/README.md
+++ b/test/README.md
@@ -8,7 +8,7 @@ There are currently two sets of tests in this directory:
 - [functional](/test/functional) which test the functionality of 
 bitcoind and bitcoin-qt by interacting with them through the RPC and P2P
 interfaces.
-- [util](test/util) which tests the bitcoin utilities, currently only
+- [util](/test/util) which tests the bitcoin utilities, currently only
 bitcoin-tx.
 
 The util tests are run as part of `make check` target. The functional
diff --git a/test/functional/README.md b/test/functional/README.md
index 2558bd017d..662b4b44d5 100644
--- a/test/functional/README.md
+++ b/test/functional/README.md
@@ -17,7 +17,7 @@ don't have test cases for.
 
 #### Style guidelines
 
-- Where possible, try to adhere to [PEP-8 guidelines]([https://www.python.org/dev/peps/pep-0008/)
+- Where possible, try to adhere to [PEP-8 guidelines](https://www.python.org/dev/peps/pep-0008/)
 - Use a python linter like flake8 before submitting PRs to catch common style
   nits (eg trailing whitespace, unused imports, etc)
 - Avoid wildcard imports where possible
@@ -27,6 +27,20 @@ don't have test cases for.
   `set_test_params()`, `add_options()` and `setup_xxxx()` methods at the top of
   the subclass, then locally-defined helper methods, then the `run_test()` method.
 
+#### Naming guidelines
+
+- Name the test `<area>_test.py`, where area can be one of the following:
+    - `feature` for tests for full features that aren't wallet/mining/mempool, eg `feature_rbf.py`
+    - `interface` for tests for other interfaces (REST, ZMQ, etc), eg `interface_rest.py`
+    - `mempool` for tests for mempool behaviour, eg `mempool_reorg.py`
+    - `mining` for tests for mining features, eg `mining_prioritisetransaction.py`
+    - `p2p` for tests that explicitly test the p2p interface, eg `p2p_disconnect_ban.py`
+    - `rpc` for tests for individual RPC methods or features, eg `rpc_listtransactions.py`
+    - `wallet` for tests for wallet features, eg `wallet_keypool.py`
+- use an underscore to separate words
+    - exception: for tests for specific RPCs or command line options which don't include underscores, name the test after the exact RPC or argument name, eg `rpc_decodescript.py`, not `rpc_decode_script.py`
+- Don't use the redundant word `test` in the name, eg `interface_zmq.py`, not `interface_zmq_test.py`
+
 #### General test-writing advice
 
 - Set `self.num_nodes` to the minimum number of nodes necessary for the test.
@@ -63,17 +77,17 @@ wrappers for them, `msg_block`, `msg_tx`, etc).
 with the bitcoind(s) being tested (using python's asyncore package); the other
 implements the test logic.
 
-- `NodeConn` is the class used to connect to a bitcoind.  If you implement
-a callback class that derives from `NodeConnCB` and pass that to the
-`NodeConn` object, your code will receive the appropriate callbacks when
-events of interest arrive.
+- `P2PConnection` is the class used to connect to a bitcoind.  `P2PInterface`
+contains the higher level logic for processing P2P payloads and connecting to
+the Bitcoin Core node application logic. For custom behaviour, subclass the
+P2PInterface object and override the callback methods.
 
-- Call `NetworkThread.start()` after all `NodeConn` objects are created to
+- Call `network_thread_start()` after all `P2PInterface` objects are created to
 start the networking thread.  (Continue with the test logic in your existing
 thread.)
 
 - Can be used to write tests where specific P2P protocol behavior is tested.
-Examples tests are `p2p-accept-block.py`, `p2p-compactblocks.py`.
+Examples tests are `p2p_unrequested_blocks.py`, `p2p_compactblocks.py`.
 
 #### Comptool
 
@@ -119,7 +133,7 @@ Each `TestInstance` consists of:
     acceptance is tested against the given outcome.
 
 - For examples of tests written in this framework, see
-  `invalidblockrequest.py` and `p2p-fullblocktest.py`.
+  `p2p_invalid_block.py` and `feature_block.py`.
 
 ### test-framework modules
 
diff --git a/test/functional/create_cache.py b/test/functional/create_cache.py
index 7d4d1a529b..9665c50a92 100755
--- a/test/functional/create_cache.py
+++ b/test/functional/create_cache.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2016 The Bitcoin Core developers
+# Copyright (c) 2016-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Create a blockchain cache.
@@ -16,6 +16,7 @@ class CreateCache(BitcoinTestFramework):
 
     def set_test_params(self):
         self.num_nodes = 0
+        self.supports_cli = True
 
     def setup_network(self):
         pass
diff --git a/test/functional/example_test.py b/test/functional/example_test.py
index ba40f33016..12be685ecf 100755
--- a/test/functional/example_test.py
+++ b/test/functional/example_test.py
@@ -17,11 +17,12 @@ from collections import defaultdict
 from test_framework.blocktools import (create_block, create_coinbase)
 from test_framework.mininode import (
     CInv,
-    NetworkThread,
-    NodeConnCB,
+    P2PInterface,
     mininode_lock,
     msg_block,
     msg_getdata,
+    network_thread_join,
+    network_thread_start,
 )
 from test_framework.test_framework import BitcoinTestFramework
 from test_framework.util import (
@@ -30,15 +31,15 @@ from test_framework.util import (
     wait_until,
 )
 
-# NodeConnCB is a class containing callbacks to be executed when a P2P
-# message is received from the node-under-test. Subclass NodeConnCB and
+# P2PInterface is a class containing callbacks to be executed when a P2P
+# message is received from the node-under-test. Subclass P2PInterface and
 # override the on_*() methods if you need custom behaviour.
-class BaseNode(NodeConnCB):
+class BaseNode(P2PInterface):
     def __init__(self):
-        """Initialize the NodeConnCB
+        """Initialize the P2PInterface
 
         Used to inialize custom properties for the Node that aren't
-        included by default in the base class. Be aware that the NodeConnCB
+        included by default in the base class. Be aware that the P2PInterface
         base class already stores a counter for each P2P message type and the
         last received message of each type, which should be sufficient for the
         needs of most tests.
@@ -49,14 +50,14 @@ class BaseNode(NodeConnCB):
         # Stores a dictionary of all blocks received
         self.block_receive_map = defaultdict(int)
 
-    def on_block(self, conn, message):
+    def on_block(self, message):
         """Override the standard on_block callback
 
         Store the hash of a received block in the dictionary."""
         message.block.calc_sha256()
         self.block_receive_map[message.block.sha256] += 1
 
-    def on_inv(self, conn, message):
+    def on_inv(self, message):
         """Override the standard on_inv callback"""
         pass
 
@@ -131,12 +132,12 @@ class ExampleTest(BitcoinTestFramework):
     def run_test(self):
         """Main test logic"""
 
-        # Create a P2P connection to one of the nodes
+        # Create P2P connections to two of the nodes
         self.nodes[0].add_p2p_connection(BaseNode())
 
         # Start up network handling in another thread. This needs to be called
         # after the P2P connections have been created.
-        NetworkThread().start()
+        network_thread_start()
         # wait_for_verack ensures that the P2P connection is fully up.
         self.nodes[0].p2p.wait_for_verack()
 
@@ -174,7 +175,7 @@ class ExampleTest(BitcoinTestFramework):
             block = create_block(self.tip, create_coinbase(height), self.block_time)
             block.solve()
             block_message = msg_block(block)
-            # Send message is used to send a P2P message to the node over our NodeConn connection
+            # Send message is used to send a P2P message to the node over our P2PInterface
             self.nodes[0].p2p.send_message(block_message)
             self.tip = block.sha256
             blocks.append(self.tip)
@@ -188,7 +189,14 @@ class ExampleTest(BitcoinTestFramework):
         connect_nodes(self.nodes[1], 2)
 
         self.log.info("Add P2P connection to node2")
+        # We can't add additional P2P connections once the network thread has started. Disconnect the connection
+        # to node0, wait for the network thread to terminate, then connect to node2. This is specific to
+        # the current implementation of the network thread and may be improved in future.
+        self.nodes[0].disconnect_p2ps()
+        network_thread_join()
+
         self.nodes[2].add_p2p_connection(BaseNode())
+        network_thread_start()
         self.nodes[2].p2p.wait_for_verack()
 
         self.log.info("Wait for node2 reach current tip. Test that it has propagated all the blocks to us")
@@ -199,12 +207,12 @@ class ExampleTest(BitcoinTestFramework):
         self.nodes[2].p2p.send_message(getdata_request)
 
         # wait_until() will loop until a predicate condition is met. Use it to test properties of the
-        # NodeConnCB objects.
+        # P2PInterface objects.
         wait_until(lambda: sorted(blocks) == sorted(list(self.nodes[2].p2p.block_receive_map.keys())), timeout=5, lock=mininode_lock)
 
         self.log.info("Check that each block was received only once")
-        # The network thread uses a global lock on data access to the NodeConn objects when sending and receiving
-        # messages. The test thread should acquire the global lock before accessing any NodeConn data to avoid locking
+        # The network thread uses a global lock on data access to the P2PConnection objects when sending and receiving
+        # messages. The test thread should acquire the global lock before accessing any P2PConnection data to avoid locking
         # and synchronization issues. Note wait_until() acquires this global lock when testing the predicate.
         with mininode_lock:
             for block in self.nodes[2].p2p.block_receive_map.values():
diff --git a/test/functional/assumevalid.py b/test/functional/feature_assumevalid.py
index 36761d359e..5a09142412 100755
--- a/test/functional/assumevalid.py
+++ b/test/functional/feature_assumevalid.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2014-2016 The Bitcoin Core developers
+# Copyright (c) 2014-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test logic for skipping signature validation on old blocks.
@@ -38,15 +38,16 @@ from test_framework.mininode import (CBlockHeader,
                                      CTransaction,
                                      CTxIn,
                                      CTxOut,
-                                     NetworkThread,
-                                     NodeConnCB,
+                                     network_thread_join,
+                                     network_thread_start,
+                                     P2PInterface,
                                      msg_block,
                                      msg_headers)
 from test_framework.script import (CScript, OP_TRUE)
 from test_framework.test_framework import BitcoinTestFramework
 from test_framework.util import assert_equal
 
-class BaseNode(NodeConnCB):
+class BaseNode(P2PInterface):
     def send_header_for_blocks(self, new_blocks):
         headers_message = msg_headers()
         headers_message.headers = [CBlockHeader(b) for b in new_blocks]
@@ -67,7 +68,7 @@ class AssumeValidTest(BitcoinTestFramework):
     def send_blocks_until_disconnected(self, p2p_conn):
         """Keep sending blocks to the node until we're disconnected."""
         for i in range(len(self.blocks)):
-            if not p2p_conn.connection:
+            if p2p_conn.state != "connected":
                 break
             try:
                 p2p_conn.send_message(msg_block(self.blocks[i]))
@@ -98,7 +99,7 @@ class AssumeValidTest(BitcoinTestFramework):
         # Connect to node0
         p2p0 = self.nodes[0].add_p2p_connection(BaseNode())
 
-        NetworkThread().start()  # Start up network handling in another thread
+        network_thread_start()
         self.nodes[0].p2p.wait_for_verack()
 
         # Build the blockchain
@@ -159,13 +160,22 @@ class AssumeValidTest(BitcoinTestFramework):
             self.block_time += 1
             height += 1
 
+        # We're adding new connections so terminate the network thread
+        self.nodes[0].disconnect_p2ps()
+        network_thread_join()
+
         # Start node1 and node2 with assumevalid so they accept a block with a bad signature.
         self.start_node(1, extra_args=["-assumevalid=" + hex(block102.sha256)])
-        p2p1 = self.nodes[1].add_p2p_connection(BaseNode())
-        p2p1.wait_for_verack()
-
         self.start_node(2, extra_args=["-assumevalid=" + hex(block102.sha256)])
+
+        p2p0 = self.nodes[0].add_p2p_connection(BaseNode())
+        p2p1 = self.nodes[1].add_p2p_connection(BaseNode())
         p2p2 = self.nodes[2].add_p2p_connection(BaseNode())
+
+        network_thread_start()
+
+        p2p0.wait_for_verack()
+        p2p1.wait_for_verack()
         p2p2.wait_for_verack()
 
         # send header lists to all three nodes
diff --git a/test/functional/bip68-sequence.py b/test/functional/feature_bip68_sequence.py
index 5f8f21701f..94b13653b9 100755
--- a/test/functional/bip68-sequence.py
+++ b/test/functional/feature_bip68_sequence.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2014-2016 The Bitcoin Core developers
+# Copyright (c) 2014-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test BIP68 implementation."""
@@ -362,9 +362,10 @@ class BIP68Test(BitcoinTestFramework):
         block.vtx.extend([tx1, tx2, tx3])
         block.hashMerkleRoot = block.calc_merkle_root()
         block.rehash()
+        add_witness_commitment(block)
         block.solve()
 
-        self.nodes[0].submitblock(ToHex(block))
+        self.nodes[0].submitblock(bytes_to_hex_str(block.serialize(True)))
         assert_equal(self.nodes[0].getbestblockhash(), block.hash)
 
     def activateCSV(self):
diff --git a/test/functional/bip9-softforks.py b/test/functional/feature_bip9_softforks.py
index 904789301a..ae92e9f07c 100755
--- a/test/functional/bip9-softforks.py
+++ b/test/functional/feature_bip9_softforks.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2015-2016 The Bitcoin Core developers
+# Copyright (c) 2015-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test BIP 9 soft forks.
@@ -22,7 +22,7 @@ import itertools
 
 from test_framework.test_framework import ComparisonTestFramework
 from test_framework.util import *
-from test_framework.mininode import CTransaction, NetworkThread
+from test_framework.mininode import CTransaction, network_thread_start
 from test_framework.blocktools import create_coinbase, create_block
 from test_framework.comptool import TestInstance, TestManager
 from test_framework.script import CScript, OP_1NEGATE, OP_CHECKSEQUENCEVERIFY, OP_DROP
@@ -36,7 +36,7 @@ class BIP9SoftForksTest(ComparisonTestFramework):
     def run_test(self):
         self.test = TestManager(self, self.options.tmpdir)
         self.test.add_all_connections(self.nodes)
-        NetworkThread().start() # Start up network handling in another thread
+        network_thread_start()
         self.test.run()
 
     def create_transaction(self, node, coinbase, to_address, amount):
@@ -245,8 +245,8 @@ class BIP9SoftForksTest(ComparisonTestFramework):
         self.setup_chain()
         self.setup_network()
         self.test.add_all_connections(self.nodes)
-        NetworkThread().start()
-        self.test.test_nodes[0].wait_for_verack()
+        network_thread_start()
+        self.test.p2p_connections[0].wait_for_verack()
 
     def get_tests(self):
         for test in itertools.chain(
diff --git a/test/functional/p2p-fullblocktest.py b/test/functional/feature_block.py
index f19b845a32..fe9bbda14b 100755
--- a/test/functional/p2p-fullblocktest.py
+++ b/test/functional/feature_block.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2015-2016 The Bitcoin Core developers
+# Copyright (c) 2015-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test block processing.
@@ -18,6 +18,7 @@ from test_framework.blocktools import *
 import time
 from test_framework.key import CECKey
 from test_framework.script import *
+from test_framework.mininode import network_thread_start
 import struct
 
 class PreviousSpendableOutput():
@@ -35,12 +36,15 @@ class CBrokenBlock(CBlock):
         self.vtx = copy.deepcopy(base_block.vtx)
         self.hashMerkleRoot = self.calc_merkle_root()
 
-    def serialize(self):
+    def serialize(self, with_witness=False):
         r = b""
         r += super(CBlock, self).serialize()
         r += struct.pack("<BQ", 255, len(self.vtx))
         for tx in self.vtx:
-            r += tx.serialize()
+            if with_witness:
+                r += tx.serialize_with_witness()
+            else:
+                r += tx.serialize_without_witness()
         return r
 
     def normal_serialize(self):
@@ -68,7 +72,7 @@ class FullBlockTest(ComparisonTestFramework):
     def run_test(self):
         self.test = TestManager(self, self.options.tmpdir)
         self.test.add_all_connections(self.nodes)
-        NetworkThread().start() # Start up network handling in another thread
+        network_thread_start()
         self.test.run()
 
     def add_transactions_to_block(self, block, tx_list):
diff --git a/test/functional/bip65-cltv-p2p.py b/test/functional/feature_cltv.py
index 3073324798..f62ae31654 100755
--- a/test/functional/bip65-cltv-p2p.py
+++ b/test/functional/feature_cltv.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2015-2016 The Bitcoin Core developers
+# Copyright (c) 2015-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test BIP65 (CHECKLOCKTIMEVERIFY).
@@ -66,9 +66,9 @@ class BIP65Test(BitcoinTestFramework):
         self.setup_clean_chain = True
 
     def run_test(self):
-        self.nodes[0].add_p2p_connection(NodeConnCB())
+        self.nodes[0].add_p2p_connection(P2PInterface())
 
-        NetworkThread().start() # Start up network handling in another thread
+        network_thread_start()
 
         # wait_for_verack ensures that the P2P connection is fully up.
         self.nodes[0].p2p.wait_for_verack()
diff --git a/test/functional/feature_config_args.py b/test/functional/feature_config_args.py
new file mode 100755
index 0000000000..61abba8082
--- /dev/null
+++ b/test/functional/feature_config_args.py
@@ -0,0 +1,49 @@
+#!/usr/bin/env python3
+# Copyright (c) 2017 The Bitcoin Core developers
+# Distributed under the MIT software license, see the accompanying
+# file COPYING or http://www.opensource.org/licenses/mit-license.php.
+"""Test various command line arguments and configuration file parameters."""
+
+import os
+
+from test_framework.test_framework import BitcoinTestFramework
+from test_framework.util import get_datadir_path
+
+class ConfArgsTest(BitcoinTestFramework):
+    def set_test_params(self):
+        self.setup_clean_chain = True
+        self.num_nodes = 1
+
+    def run_test(self):
+        self.stop_node(0)
+        # Remove the -datadir argument so it doesn't override the config file
+        self.nodes[0].args = [arg for arg in self.nodes[0].args if not arg.startswith("-datadir")]
+
+        default_data_dir = get_datadir_path(self.options.tmpdir, 0)
+        new_data_dir = os.path.join(default_data_dir, 'newdatadir')
+        new_data_dir_2 = os.path.join(default_data_dir, 'newdatadir2')
+
+        # Check that using -datadir argument on non-existent directory fails
+        self.nodes[0].datadir = new_data_dir
+        self.assert_start_raises_init_error(0, ['-datadir='+new_data_dir], 'Error: Specified data directory "' + new_data_dir + '" does not exist.')
+
+        # Check that using non-existent datadir in conf file fails
+        conf_file = os.path.join(default_data_dir, "bitcoin.conf")
+        with open(conf_file, 'a', encoding='utf8') as f:
+            f.write("datadir=" + new_data_dir + "\n")
+        self.assert_start_raises_init_error(0, ['-conf='+conf_file], 'Error reading configuration file: specified data directory "' + new_data_dir + '" does not exist.')
+
+        # Create the directory and ensure the config file now works
+        os.mkdir(new_data_dir)
+        self.start_node(0, ['-conf='+conf_file, '-wallet=w1'])
+        self.stop_node(0)
+        assert os.path.isfile(os.path.join(new_data_dir, 'regtest', 'wallets', 'w1'))
+
+        # Ensure command line argument overrides datadir in conf
+        os.mkdir(new_data_dir_2)
+        self.nodes[0].datadir = new_data_dir_2
+        self.start_node(0, ['-datadir='+new_data_dir_2, '-conf='+conf_file, '-wallet=w2'])
+        assert os.path.isfile(os.path.join(new_data_dir_2, 'regtest', 'wallets', 'w2'))
+
+if __name__ == '__main__':
+    ConfArgsTest().main()
diff --git a/test/functional/bip68-112-113-p2p.py b/test/functional/feature_csv_activation.py
index 7e6a4f4408..82aa0ff891 100755
--- a/test/functional/bip68-112-113-p2p.py
+++ b/test/functional/feature_csv_activation.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2015-2016 The Bitcoin Core developers
+# Copyright (c) 2015-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test activation of the first version bits soft fork.
@@ -45,7 +45,7 @@ bip112tx_special - test negative argument to OP_CSV
 
 from test_framework.test_framework import ComparisonTestFramework
 from test_framework.util import *
-from test_framework.mininode import ToHex, CTransaction, NetworkThread
+from test_framework.mininode import ToHex, CTransaction, network_thread_start
 from test_framework.blocktools import create_coinbase, create_block
 from test_framework.comptool import TestInstance, TestManager
 from test_framework.script import *
@@ -95,12 +95,12 @@ class BIP68_112_113Test(ComparisonTestFramework):
     def set_test_params(self):
         self.num_nodes = 1
         self.setup_clean_chain = True
-        self.extra_args = [['-whitelist=127.0.0.1', '-blockversion=4']]
+        self.extra_args = [['-whitelist=127.0.0.1', '-blockversion=4', '-addresstype=legacy']]
 
     def run_test(self):
         test = TestManager(self, self.options.tmpdir)
         test.add_all_connections(self.nodes)
-        NetworkThread().start() # Start up network handling in another thread
+        network_thread_start()
         test.run()
 
     def send_generic_input_tx(self, node, coinbases):
diff --git a/test/functional/dbcrash.py b/test/functional/feature_dbcrash.py
index 24b9765b4e..24b9765b4e 100755
--- a/test/functional/dbcrash.py
+++ b/test/functional/feature_dbcrash.py
diff --git a/test/functional/bipdersig-p2p.py b/test/functional/feature_dersig.py
index e5febde42d..3414571678 100755
--- a/test/functional/bipdersig-p2p.py
+++ b/test/functional/feature_dersig.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2015-2016 The Bitcoin Core developers
+# Copyright (c) 2015-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test BIP66 (DER SIG).
@@ -54,9 +54,9 @@ class BIP66Test(BitcoinTestFramework):
         self.setup_clean_chain = True
 
     def run_test(self):
-        self.nodes[0].add_p2p_connection(NodeConnCB())
+        self.nodes[0].add_p2p_connection(P2PInterface())
 
-        NetworkThread().start() # Start up network handling in another thread
+        network_thread_start()
 
         # wait_for_verack ensures that the P2P connection is fully up.
         self.nodes[0].p2p.wait_for_verack()
diff --git a/test/functional/smartfees.py b/test/functional/feature_fee_estimation.py
index 986f4546a8..68453e50f4 100755
--- a/test/functional/smartfees.py
+++ b/test/functional/feature_fee_estimation.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2014-2016 The Bitcoin Core developers
+# Copyright (c) 2014-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test fee estimation code."""
diff --git a/test/functional/feature_logging.py b/test/functional/feature_logging.py
new file mode 100755
index 0000000000..da4e7b0398
--- /dev/null
+++ b/test/functional/feature_logging.py
@@ -0,0 +1,59 @@
+#!/usr/bin/env python3
+# Copyright (c) 2017 The Bitcoin Core developers
+# Distributed under the MIT software license, see the accompanying
+# file COPYING or http://www.opensource.org/licenses/mit-license.php.
+"""Test debug logging."""
+
+import os
+
+from test_framework.test_framework import BitcoinTestFramework
+
+class LoggingTest(BitcoinTestFramework):
+    def set_test_params(self):
+        self.num_nodes = 1
+        self.setup_clean_chain = True
+
+    def run_test(self):
+        # test default log file name
+        assert os.path.isfile(os.path.join(self.nodes[0].datadir, "regtest", "debug.log"))
+
+        # test alternative log file name in datadir
+        self.restart_node(0, ["-debuglogfile=foo.log"])
+        assert os.path.isfile(os.path.join(self.nodes[0].datadir, "regtest", "foo.log"))
+
+        # test alternative log file name outside datadir
+        tempname = os.path.join(self.options.tmpdir, "foo.log")
+        self.restart_node(0, ["-debuglogfile=%s" % tempname])
+        assert os.path.isfile(tempname)
+
+        # check that invalid log (relative) will cause error
+        invdir = os.path.join(self.nodes[0].datadir, "regtest", "foo")
+        invalidname = os.path.join("foo", "foo.log")
+        self.stop_node(0)
+        self.assert_start_raises_init_error(0, ["-debuglogfile=%s" % (invalidname)],
+                                                "Error: Could not open debug log file")
+        assert not os.path.isfile(os.path.join(invdir, "foo.log"))
+
+        # check that invalid log (relative) works after path exists
+        self.stop_node(0)
+        os.mkdir(invdir)
+        self.start_node(0, ["-debuglogfile=%s" % (invalidname)])
+        assert os.path.isfile(os.path.join(invdir, "foo.log"))
+
+        # check that invalid log (absolute) will cause error
+        self.stop_node(0)
+        invdir = os.path.join(self.options.tmpdir, "foo")
+        invalidname = os.path.join(invdir, "foo.log")
+        self.assert_start_raises_init_error(0, ["-debuglogfile=%s" % invalidname],
+                                               "Error: Could not open debug log file")
+        assert not os.path.isfile(os.path.join(invdir, "foo.log"))
+
+        # check that invalid log (absolute) works after path exists
+        self.stop_node(0)
+        os.mkdir(invdir)
+        self.start_node(0, ["-debuglogfile=%s" % (invalidname)])
+        assert os.path.isfile(os.path.join(invdir, "foo.log"))
+
+
+if __name__ == '__main__':
+    LoggingTest().main()
diff --git a/test/functional/maxuploadtarget.py b/test/functional/feature_maxuploadtarget.py
index 88e2ff2e16..45336ee801 100755
--- a/test/functional/maxuploadtarget.py
+++ b/test/functional/feature_maxuploadtarget.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2015-2016 The Bitcoin Core developers
+# Copyright (c) 2015-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test behavior of -maxuploadtarget.
@@ -17,15 +17,15 @@ from test_framework.mininode import *
 from test_framework.test_framework import BitcoinTestFramework
 from test_framework.util import *
 
-class TestNode(NodeConnCB):
+class TestNode(P2PInterface):
     def __init__(self):
         super().__init__()
         self.block_receive_map = defaultdict(int)
 
-    def on_inv(self, conn, message):
+    def on_inv(self, message):
         pass
 
-    def on_block(self, conn, message):
+    def on_block(self, message):
         message.block.calc_sha256()
         self.block_receive_map[message.block.sha256] += 1
 
@@ -57,7 +57,7 @@ class MaxUploadTest(BitcoinTestFramework):
         for _ in range(3):
             p2p_conns.append(self.nodes[0].add_p2p_connection(TestNode()))
 
-        NetworkThread().start() # Start up network handling in another thread
+        network_thread_start()
         for p2pc in p2p_conns:
             p2pc.wait_for_verack()
 
@@ -149,7 +149,7 @@ class MaxUploadTest(BitcoinTestFramework):
         # Reconnect to self.nodes[0]
         self.nodes[0].add_p2p_connection(TestNode())
 
-        NetworkThread().start() # Start up network handling in another thread
+        network_thread_start()
         self.nodes[0].p2p.wait_for_verack()
 
         #retrieve 20 blocks which should be enough to break the 1MB limit
diff --git a/test/functional/minchainwork.py b/test/functional/feature_minchainwork.py
index 35cd7ad141..90a3de0e0d 100755
--- a/test/functional/minchainwork.py
+++ b/test/functional/feature_minchainwork.py
@@ -18,7 +18,7 @@ only succeeds past a given node once its nMinimumChainWork has been exceeded.
 import time
 
 from test_framework.test_framework import BitcoinTestFramework
-from test_framework.util import sync_blocks, connect_nodes, assert_equal
+from test_framework.util import connect_nodes, assert_equal
 
 # 2 hashes required per regtest block (with no difficulty adjustment)
 REGTEST_WORK_PER_BLOCK = 2
diff --git a/test/functional/notifications.py b/test/functional/feature_notifications.py
index c88972ab91..980bef5fc8 100755
--- a/test/functional/notifications.py
+++ b/test/functional/feature_notifications.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2014-2016 The Bitcoin Core developers
+# Copyright (c) 2014-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test the -alertnotify, -blocknotify and -walletnotify options."""
diff --git a/test/functional/nulldummy.py b/test/functional/feature_nulldummy.py
index 7bc7c168f4..e4f413cc2a 100755
--- a/test/functional/nulldummy.py
+++ b/test/functional/feature_nulldummy.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2016 The Bitcoin Core developers
+# Copyright (c) 2016-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test NULLDUMMY softfork.
@@ -15,7 +15,7 @@ Generate 427 more blocks.
 
 from test_framework.test_framework import BitcoinTestFramework
 from test_framework.util import *
-from test_framework.mininode import CTransaction, NetworkThread
+from test_framework.mininode import CTransaction, network_thread_start
 from test_framework.blocktools import create_coinbase, create_block, add_witness_commitment
 from test_framework.script import CScript
 from io import BytesIO
@@ -42,15 +42,15 @@ class NULLDUMMYTest(BitcoinTestFramework):
         self.setup_clean_chain = True
         # This script tests NULLDUMMY activation, which is part of the 'segwit' deployment, so we go through
         # normal segwit activation here (and don't use the default always-on behaviour).
-        self.extra_args = [['-whitelist=127.0.0.1', '-walletprematurewitness', '-vbparams=segwit:0:999999999999']]
+        self.extra_args = [['-whitelist=127.0.0.1', '-walletprematurewitness', '-vbparams=segwit:0:999999999999', '-addresstype=legacy', "-deprecatedrpc=addwitnessaddress"]]
 
     def run_test(self):
         self.address = self.nodes[0].getnewaddress()
-        self.ms_address = self.nodes[0].addmultisigaddress(1,[self.address])
+        self.ms_address = self.nodes[0].addmultisigaddress(1,[self.address])['address']
         self.wit_address = self.nodes[0].addwitnessaddress(self.address)
-        self.wit_ms_address = self.nodes[0].addwitnessaddress(self.ms_address)
+        self.wit_ms_address = self.nodes[0].addmultisigaddress(1, [self.address], '', 'p2sh-segwit')['address']
 
-        NetworkThread().start() # Start up network handling in another thread
+        network_thread_start()
         self.coinbase_blocks = self.nodes[0].generate(2) # Block 2
         coinbase_txid = []
         for i in self.coinbase_blocks:
diff --git a/test/functional/proxy_test.py b/test/functional/feature_proxy.py
index 81b99d1bf4..2eb1be47a5 100755
--- a/test/functional/proxy_test.py
+++ b/test/functional/feature_proxy.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2015-2016 The Bitcoin Core developers
+# Copyright (c) 2015-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test bitcoind with different proxy configuration.
diff --git a/test/functional/pruning.py b/test/functional/feature_pruning.py
index 0101f61185..49ad7f838c 100755
--- a/test/functional/pruning.py
+++ b/test/functional/feature_pruning.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2014-2016 The Bitcoin Core developers
+# Copyright (c) 2014-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test the pruning code.
diff --git a/test/functional/replace-by-fee.py b/test/functional/feature_rbf.py
index 815e964848..6b7ab0f43e 100755
--- a/test/functional/replace-by-fee.py
+++ b/test/functional/feature_rbf.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2014-2016 The Bitcoin Core developers
+# Copyright (c) 2014-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test the RBF code."""
diff --git a/test/functional/reindex.py b/test/functional/feature_reindex.py
index 1f684a1afe..ac67e6e9ba 100755
--- a/test/functional/reindex.py
+++ b/test/functional/feature_reindex.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2014-2016 The Bitcoin Core developers
+# Copyright (c) 2014-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test running bitcoind with -reindex and -reindex-chainstate options.
diff --git a/test/functional/segwit.py b/test/functional/feature_segwit.py
index 338fa1bc52..ba6373fa33 100755
--- a/test/functional/segwit.py
+++ b/test/functional/feature_segwit.py
@@ -1,13 +1,21 @@
 #!/usr/bin/env python3
-# Copyright (c) 2016 The Bitcoin Core developers
+# Copyright (c) 2016-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test the SegWit changeover logic."""
 
+from test_framework.address import (
+    key_to_p2sh_p2wpkh,
+    key_to_p2wpkh,
+    program_to_witness,
+    script_to_p2sh_p2wsh,
+    script_to_p2wsh,
+)
+from test_framework.blocktools import witness_script, send_to_witness
 from test_framework.test_framework import BitcoinTestFramework
 from test_framework.util import *
 from test_framework.mininode import sha256, CTransaction, CTxIn, COutPoint, CTxOut, COIN, ToHex, FromHex
-from test_framework.address import script_to_p2sh, key_to_p2pkh, key_to_p2sh_p2wpkh, key_to_p2wpkh, script_to_p2sh_p2wsh, script_to_p2wsh, program_to_witness
+from test_framework.address import script_to_p2sh, key_to_p2pkh
 from test_framework.script import CScript, OP_HASH160, OP_CHECKSIG, OP_0, hash160, OP_EQUAL, OP_DUP, OP_EQUALVERIFY, OP_1, OP_2, OP_CHECKMULTISIG, OP_TRUE
 from io import BytesIO
 
@@ -16,52 +24,6 @@ NODE_2 = 2
 WIT_V0 = 0
 WIT_V1 = 1
 
-# Create a scriptPubKey corresponding to either a P2WPKH output for the
-# given pubkey, or a P2WSH output of a 1-of-1 multisig for the given
-# pubkey. Returns the hex encoding of the scriptPubKey.
-def witness_script(use_p2wsh, pubkey):
-    if (use_p2wsh == False):
-        # P2WPKH instead
-        pubkeyhash = hash160(hex_str_to_bytes(pubkey))
-        pkscript = CScript([OP_0, pubkeyhash])
-    else:
-        # 1-of-1 multisig
-        witness_program = CScript([OP_1, hex_str_to_bytes(pubkey), OP_1, OP_CHECKMULTISIG])
-        scripthash = sha256(witness_program)
-        pkscript = CScript([OP_0, scripthash])
-    return bytes_to_hex_str(pkscript)
-
-# Return a transaction (in hex) that spends the given utxo to a segwit output,
-# optionally wrapping the segwit output using P2SH.
-def create_witness_tx(node, use_p2wsh, utxo, pubkey, encode_p2sh, amount):
-    if use_p2wsh:
-        program = CScript([OP_1, hex_str_to_bytes(pubkey), OP_1, OP_CHECKMULTISIG])
-        addr = script_to_p2sh_p2wsh(program) if encode_p2sh else script_to_p2wsh(program)
-    else:
-        addr = key_to_p2sh_p2wpkh(pubkey) if encode_p2sh else key_to_p2wpkh(pubkey)
-    if not encode_p2sh:
-        assert_equal(node.validateaddress(addr)['scriptPubKey'], witness_script(use_p2wsh, pubkey))
-    return node.createrawtransaction([utxo], {addr: amount})
-
-# Create a transaction spending a given utxo to a segwit output corresponding
-# to the given pubkey: use_p2wsh determines whether to use P2WPKH or P2WSH;
-# encode_p2sh determines whether to wrap in P2SH.
-# sign=True will have the given node sign the transaction.
-# insert_redeem_script will be added to the scriptSig, if given.
-def send_to_witness(use_p2wsh, node, utxo, pubkey, encode_p2sh, amount, sign=True, insert_redeem_script=""):
-    tx_to_witness = create_witness_tx(node, use_p2wsh, utxo, pubkey, encode_p2sh, amount)
-    if (sign):
-        signed = node.signrawtransaction(tx_to_witness)
-        assert("errors" not in signed or len(["errors"]) == 0)
-        return node.sendrawtransaction(signed["hex"])
-    else:
-        if (insert_redeem_script):
-            tx = FromHex(CTransaction(), tx_to_witness)
-            tx.vin[0].scriptSig += CScript([hex_str_to_bytes(insert_redeem_script)])
-            tx_to_witness = ToHex(tx)
-
-    return node.sendrawtransaction(tx_to_witness)
-
 def getutxo(txid):
     utxo = {}
     utxo["vout"] = 0
@@ -78,9 +40,9 @@ class SegWitTest(BitcoinTestFramework):
         self.setup_clean_chain = True
         self.num_nodes = 3
         # This test tests SegWit both pre and post-activation, so use the normal BIP9 activation.
-        self.extra_args = [["-walletprematurewitness", "-rpcserialversion=0", "-vbparams=segwit:0:999999999999"],
-                           ["-blockversion=4", "-promiscuousmempoolflags=517", "-prematurewitness", "-walletprematurewitness", "-rpcserialversion=1", "-vbparams=segwit:0:999999999999"],
-                           ["-blockversion=536870915", "-promiscuousmempoolflags=517", "-prematurewitness", "-walletprematurewitness", "-vbparams=segwit:0:999999999999"]]
+        self.extra_args = [["-walletprematurewitness", "-rpcserialversion=0", "-vbparams=segwit:0:999999999999", "-addresstype=legacy", "-deprecatedrpc=addwitnessaddress"],
+                           ["-blockversion=4", "-promiscuousmempoolflags=517", "-prematurewitness", "-walletprematurewitness", "-rpcserialversion=1", "-vbparams=segwit:0:999999999999", "-addresstype=legacy", "-deprecatedrpc=addwitnessaddress"],
+                           ["-blockversion=536870915", "-promiscuousmempoolflags=517", "-prematurewitness", "-walletprematurewitness", "-vbparams=segwit:0:999999999999", "-addresstype=legacy", "-deprecatedrpc=addwitnessaddress"]]
 
     def setup_network(self):
         super().setup_network()
@@ -133,12 +95,11 @@ class SegWitTest(BitcoinTestFramework):
         for i in range(3):
             newaddress = self.nodes[i].getnewaddress()
             self.pubkey.append(self.nodes[i].validateaddress(newaddress)["pubkey"])
-            multiaddress = self.nodes[i].addmultisigaddress(1, [self.pubkey[-1]])
             multiscript = CScript([OP_1, hex_str_to_bytes(self.pubkey[-1]), OP_1, OP_CHECKMULTISIG])
-            p2sh_addr = self.nodes[i].addwitnessaddress(newaddress, True)
+            p2sh_addr = self.nodes[i].addwitnessaddress(newaddress)
             bip173_addr = self.nodes[i].addwitnessaddress(newaddress, False)
-            p2sh_ms_addr = self.nodes[i].addwitnessaddress(multiaddress, True)
-            bip173_ms_addr = self.nodes[i].addwitnessaddress(multiaddress, False)
+            p2sh_ms_addr = self.nodes[i].addmultisigaddress(1, [self.pubkey[-1]], '', 'p2sh-segwit')['address']
+            bip173_ms_addr = self.nodes[i].addmultisigaddress(1, [self.pubkey[-1]], '', 'bech32')['address']
             assert_equal(p2sh_addr, key_to_p2sh_p2wpkh(self.pubkey[-1]))
             assert_equal(bip173_addr, key_to_p2wpkh(self.pubkey[-1]))
             assert_equal(p2sh_ms_addr, script_to_p2sh_p2wsh(multiscript))
@@ -328,19 +289,19 @@ class SegWitTest(BitcoinTestFramework):
         solvable_anytime = []                       # These outputs should be solvable after importpubkey
         unseen_anytime = []                         # These outputs should never be seen
 
-        uncompressed_spendable_address.append(self.nodes[0].addmultisigaddress(2, [uncompressed_spendable_address[0], compressed_spendable_address[0]]))
-        uncompressed_spendable_address.append(self.nodes[0].addmultisigaddress(2, [uncompressed_spendable_address[0], uncompressed_spendable_address[0]]))
-        compressed_spendable_address.append(self.nodes[0].addmultisigaddress(2, [compressed_spendable_address[0], compressed_spendable_address[0]]))
-        uncompressed_solvable_address.append(self.nodes[0].addmultisigaddress(2, [compressed_spendable_address[0], uncompressed_solvable_address[0]]))
-        compressed_solvable_address.append(self.nodes[0].addmultisigaddress(2, [compressed_spendable_address[0], compressed_solvable_address[0]]))
-        compressed_solvable_address.append(self.nodes[0].addmultisigaddress(2, [compressed_solvable_address[0], compressed_solvable_address[1]]))
+        uncompressed_spendable_address.append(self.nodes[0].addmultisigaddress(2, [uncompressed_spendable_address[0], compressed_spendable_address[0]])['address'])
+        uncompressed_spendable_address.append(self.nodes[0].addmultisigaddress(2, [uncompressed_spendable_address[0], uncompressed_spendable_address[0]])['address'])
+        compressed_spendable_address.append(self.nodes[0].addmultisigaddress(2, [compressed_spendable_address[0], compressed_spendable_address[0]])['address'])
+        uncompressed_solvable_address.append(self.nodes[0].addmultisigaddress(2, [compressed_spendable_address[0], uncompressed_solvable_address[0]])['address'])
+        compressed_solvable_address.append(self.nodes[0].addmultisigaddress(2, [compressed_spendable_address[0], compressed_solvable_address[0]])['address'])
+        compressed_solvable_address.append(self.nodes[0].addmultisigaddress(2, [compressed_solvable_address[0], compressed_solvable_address[1]])['address'])
         unknown_address = ["mtKKyoHabkk6e4ppT7NaM7THqPUt7AzPrT", "2NDP3jLWAFT8NDAiUa9qiE6oBt2awmMq7Dx"]
 
         # Test multisig_without_privkey
         # We have 2 public keys without private keys, use addmultisigaddress to add to wallet.
         # Money sent to P2SH of multisig of this should only be seen after importaddress with the BASE58 P2SH address.
 
-        multisig_without_privkey_address = self.nodes[0].addmultisigaddress(2, [pubkeys[3], pubkeys[4]])
+        multisig_without_privkey_address = self.nodes[0].addmultisigaddress(2, [pubkeys[3], pubkeys[4]])['address']
         script = CScript([OP_2, hex_str_to_bytes(pubkeys[3]), hex_str_to_bytes(pubkeys[4]), OP_2, OP_CHECKMULTISIG])
         solvable_after_importaddress.append(CScript([OP_HASH160, hash160(script), OP_EQUAL]))
 
@@ -356,8 +317,10 @@ class SegWitTest(BitcoinTestFramework):
                 [p2wpkh, p2sh_p2wpkh, p2pk, p2pkh, p2sh_p2pk, p2sh_p2pkh, p2wsh_p2pk, p2wsh_p2pkh, p2sh_p2wsh_p2pk, p2sh_p2wsh_p2pkh] = self.p2pkh_address_to_script(v)
                 # normal P2PKH and P2PK with compressed keys should always be spendable
                 spendable_anytime.extend([p2pkh, p2pk])
-                # P2SH_P2PK, P2SH_P2PKH, and witness with compressed keys are spendable after direct importaddress
-                spendable_after_importaddress.extend([p2wpkh, p2sh_p2wpkh, p2sh_p2pk, p2sh_p2pkh, p2wsh_p2pk, p2wsh_p2pkh, p2sh_p2wsh_p2pk, p2sh_p2wsh_p2pkh])
+                # P2SH_P2PK, P2SH_P2PKH with compressed keys are spendable after direct importaddress
+                spendable_after_importaddress.extend([p2sh_p2pk, p2sh_p2pkh, p2wsh_p2pk, p2wsh_p2pkh, p2sh_p2wsh_p2pk, p2sh_p2wsh_p2pkh])
+                # P2WPKH and P2SH_P2WPKH with compressed keys should always be spendable
+                spendable_anytime.extend([p2wpkh, p2sh_p2wpkh])
 
         for i in uncompressed_spendable_address:
             v = self.nodes[0].validateaddress(i)
@@ -373,7 +336,7 @@ class SegWitTest(BitcoinTestFramework):
                 spendable_anytime.extend([p2pkh, p2pk])
                 # P2SH_P2PK and P2SH_P2PKH are spendable after direct importaddress
                 spendable_after_importaddress.extend([p2sh_p2pk, p2sh_p2pkh])
-                # witness with uncompressed keys are never seen
+                # Witness output types with uncompressed keys are never seen
                 unseen_anytime.extend([p2wpkh, p2sh_p2wpkh, p2wsh_p2pk, p2wsh_p2pkh, p2sh_p2wsh_p2pk, p2sh_p2wsh_p2pkh])
 
         for i in compressed_solvable_address:
@@ -384,10 +347,10 @@ class SegWitTest(BitcoinTestFramework):
                 solvable_after_importaddress.extend([bare, p2sh, p2wsh, p2sh_p2wsh])
             else:
                 [p2wpkh, p2sh_p2wpkh, p2pk, p2pkh, p2sh_p2pk, p2sh_p2pkh, p2wsh_p2pk, p2wsh_p2pkh, p2sh_p2wsh_p2pk, p2sh_p2wsh_p2pkh] = self.p2pkh_address_to_script(v)
-                # normal P2PKH and P2PK with compressed keys should always be seen
-                solvable_anytime.extend([p2pkh, p2pk])
-                # P2SH_P2PK, P2SH_P2PKH, and witness with compressed keys are seen after direct importaddress
-                solvable_after_importaddress.extend([p2wpkh, p2sh_p2wpkh, p2sh_p2pk, p2sh_p2pkh, p2wsh_p2pk, p2wsh_p2pkh, p2sh_p2wsh_p2pk, p2sh_p2wsh_p2pkh])
+                # normal P2PKH, P2PK, P2WPKH and P2SH_P2WPKH with compressed keys should always be seen
+                solvable_anytime.extend([p2pkh, p2pk, p2wpkh, p2sh_p2wpkh])
+                # P2SH_P2PK, P2SH_P2PKH with compressed keys are seen after direct importaddress
+                solvable_after_importaddress.extend([p2sh_p2pk, p2sh_p2pkh, p2wsh_p2pk, p2wsh_p2pkh, p2sh_p2wsh_p2pk, p2sh_p2wsh_p2pkh])
 
         for i in uncompressed_solvable_address:
             v = self.nodes[0].validateaddress(i)
@@ -403,7 +366,7 @@ class SegWitTest(BitcoinTestFramework):
                 solvable_anytime.extend([p2pkh, p2pk])
                 # P2SH_P2PK, P2SH_P2PKH with uncompressed keys are seen after direct importaddress
                 solvable_after_importaddress.extend([p2sh_p2pk, p2sh_p2pkh])
-                # witness with uncompressed keys are never seen
+                # Witness output types with uncompressed keys are never seen
                 unseen_anytime.extend([p2wpkh, p2sh_p2wpkh, p2wsh_p2pk, p2wsh_p2pkh, p2sh_p2wsh_p2pk, p2sh_p2wsh_p2pkh])
 
         op1 = CScript([OP_1])
@@ -496,12 +459,14 @@ class SegWitTest(BitcoinTestFramework):
         spendable_after_addwitnessaddress = []      # These outputs should be seen after importaddress
         solvable_after_addwitnessaddress=[]         # These outputs should be seen after importaddress but not spendable
         unseen_anytime = []                         # These outputs should never be seen
+        solvable_anytime = []                       # These outputs should be solvable after importpubkey
+        unseen_anytime = []                         # These outputs should never be seen
 
-        uncompressed_spendable_address.append(self.nodes[0].addmultisigaddress(2, [uncompressed_spendable_address[0], compressed_spendable_address[0]]))
-        uncompressed_spendable_address.append(self.nodes[0].addmultisigaddress(2, [uncompressed_spendable_address[0], uncompressed_spendable_address[0]]))
-        compressed_spendable_address.append(self.nodes[0].addmultisigaddress(2, [compressed_spendable_address[0], compressed_spendable_address[0]]))
-        uncompressed_solvable_address.append(self.nodes[0].addmultisigaddress(2, [compressed_solvable_address[0], uncompressed_solvable_address[0]]))
-        compressed_solvable_address.append(self.nodes[0].addmultisigaddress(2, [compressed_spendable_address[0], compressed_solvable_address[0]]))
+        uncompressed_spendable_address.append(self.nodes[0].addmultisigaddress(2, [uncompressed_spendable_address[0], compressed_spendable_address[0]])['address'])
+        uncompressed_spendable_address.append(self.nodes[0].addmultisigaddress(2, [uncompressed_spendable_address[0], uncompressed_spendable_address[0]])['address'])
+        compressed_spendable_address.append(self.nodes[0].addmultisigaddress(2, [compressed_spendable_address[0], compressed_spendable_address[0]])['address'])
+        uncompressed_solvable_address.append(self.nodes[0].addmultisigaddress(2, [compressed_solvable_address[0], uncompressed_solvable_address[0]])['address'])
+        compressed_solvable_address.append(self.nodes[0].addmultisigaddress(2, [compressed_spendable_address[0], compressed_solvable_address[0]])['address'])
 
         premature_witaddress = []
 
@@ -514,9 +479,8 @@ class SegWitTest(BitcoinTestFramework):
                 premature_witaddress.append(script_to_p2sh(p2wsh))
             else:
                 [p2wpkh, p2sh_p2wpkh, p2pk, p2pkh, p2sh_p2pk, p2sh_p2pkh, p2wsh_p2pk, p2wsh_p2pkh, p2sh_p2wsh_p2pk, p2sh_p2wsh_p2pkh] = self.p2pkh_address_to_script(v)
-                # P2WPKH, P2SH_P2WPKH are spendable after addwitnessaddress
-                spendable_after_addwitnessaddress.extend([p2wpkh, p2sh_p2wpkh])
-                premature_witaddress.append(script_to_p2sh(p2wpkh))
+                # P2WPKH, P2SH_P2WPKH are always spendable
+                spendable_anytime.extend([p2wpkh, p2sh_p2wpkh])
 
         for i in uncompressed_spendable_address + uncompressed_solvable_address:
             v = self.nodes[0].validateaddress(i)
@@ -538,10 +502,11 @@ class SegWitTest(BitcoinTestFramework):
                 premature_witaddress.append(script_to_p2sh(p2wsh))
             else:
                 [p2wpkh, p2sh_p2wpkh, p2pk, p2pkh, p2sh_p2pk, p2sh_p2pkh, p2wsh_p2pk, p2wsh_p2pkh, p2sh_p2wsh_p2pk, p2sh_p2wsh_p2pkh] = self.p2pkh_address_to_script(v)
-                # P2SH_P2PK, P2SH_P2PKH with compressed keys are seen after addwitnessaddress
-                solvable_after_addwitnessaddress.extend([p2wpkh, p2sh_p2wpkh])
-                premature_witaddress.append(script_to_p2sh(p2wpkh))
+                # P2SH_P2PK, P2SH_P2PKH with compressed keys are always solvable
+                solvable_anytime.extend([p2wpkh, p2sh_p2wpkh])
 
+        self.mine_and_test_listunspent(spendable_anytime, 2)
+        self.mine_and_test_listunspent(solvable_anytime, 1)
         self.mine_and_test_listunspent(spendable_after_addwitnessaddress + solvable_after_addwitnessaddress + unseen_anytime, 0)
 
         # addwitnessaddress should refuse to return a witness address if an uncompressed key is used
@@ -558,8 +523,8 @@ class SegWitTest(BitcoinTestFramework):
             witaddress = self.nodes[0].addwitnessaddress(i)
             assert_equal(witaddress, self.nodes[0].addwitnessaddress(witaddress))
 
-        spendable_txid.append(self.mine_and_test_listunspent(spendable_after_addwitnessaddress, 2))
-        solvable_txid.append(self.mine_and_test_listunspent(solvable_after_addwitnessaddress, 1))
+        spendable_txid.append(self.mine_and_test_listunspent(spendable_after_addwitnessaddress + spendable_anytime, 2))
+        solvable_txid.append(self.mine_and_test_listunspent(solvable_after_addwitnessaddress + solvable_anytime, 1))
         self.mine_and_test_listunspent(unseen_anytime, 0)
 
         # Check that createrawtransaction/decoderawtransaction with non-v0 Bech32 works
diff --git a/test/functional/uacomment.py b/test/functional/feature_uacomment.py
index 0b2c64ab69..0b2c64ab69 100755
--- a/test/functional/uacomment.py
+++ b/test/functional/feature_uacomment.py
diff --git a/test/functional/feature_versionbits_warning.py b/test/functional/feature_versionbits_warning.py
new file mode 100755
index 0000000000..2985569a8f
--- /dev/null
+++ b/test/functional/feature_versionbits_warning.py
@@ -0,0 +1,112 @@
+#!/usr/bin/env python3
+# Copyright (c) 2016-2017 The Bitcoin Core developers
+# Distributed under the MIT software license, see the accompanying
+# file COPYING or http://www.opensource.org/licenses/mit-license.php.
+"""Test version bits warning system.
+
+Generate chains with block versions that appear to be signalling unknown
+soft-forks, and test that warning alerts are generated.
+"""
+import os
+import re
+
+from test_framework.blocktools import create_block, create_coinbase
+from test_framework.messages import msg_block
+from test_framework.mininode import P2PInterface, network_thread_start, mininode_lock
+from test_framework.test_framework import BitcoinTestFramework
+from test_framework.util import wait_until
+
+VB_PERIOD = 144           # versionbits period length for regtest
+VB_THRESHOLD = 108        # versionbits activation threshold for regtest
+VB_TOP_BITS = 0x20000000
+VB_UNKNOWN_BIT = 27       # Choose a bit unassigned to any deployment
+VB_UNKNOWN_VERSION = VB_TOP_BITS | (1 << VB_UNKNOWN_BIT)
+
+WARN_UNKNOWN_RULES_MINED = "Unknown block versions being mined! It's possible unknown rules are in effect"
+WARN_UNKNOWN_RULES_ACTIVE = "unknown new rules activated (versionbit {})".format(VB_UNKNOWN_BIT)
+VB_PATTERN = re.compile("Warning: unknown new rules activated.*versionbit")
+
+class VersionBitsWarningTest(BitcoinTestFramework):
+    def set_test_params(self):
+        self.setup_clean_chain = True
+        self.num_nodes = 1
+
+    def setup_network(self):
+        self.alert_filename = os.path.join(self.options.tmpdir, "alert.txt")
+        # Open and close to create zero-length file
+        with open(self.alert_filename, 'w', encoding='utf8'):
+            pass
+        self.extra_args = [["-alertnotify=echo %s >> \"" + self.alert_filename + "\""]]
+        self.setup_nodes()
+
+    def send_blocks_with_version(self, peer, numblocks, version):
+        """Send numblocks blocks to peer with version set"""
+        tip = self.nodes[0].getbestblockhash()
+        height = self.nodes[0].getblockcount()
+        block_time = self.nodes[0].getblockheader(tip)["time"] + 1
+        tip = int(tip, 16)
+
+        for _ in range(numblocks):
+            block = create_block(tip, create_coinbase(height + 1), block_time)
+            block.nVersion = version
+            block.solve()
+            peer.send_message(msg_block(block))
+            block_time += 1
+            height += 1
+            tip = block.sha256
+        peer.sync_with_ping()
+
+    def versionbits_in_alert_file(self):
+        """Test that the versionbits warning has been written to the alert file."""
+        alert_text = open(self.alert_filename, 'r', encoding='utf8').read()
+        return VB_PATTERN.search(alert_text) is not None
+
+    def run_test(self):
+        # Handy alias
+        node = self.nodes[0]
+        node.add_p2p_connection(P2PInterface())
+        network_thread_start()
+        node.p2p.wait_for_verack()
+
+        # Mine one period worth of blocks
+        node.generate(VB_PERIOD)
+
+        self.log.info("Check that there is no warning if previous VB_BLOCKS have <VB_THRESHOLD blocks with unknown versionbits version.")
+        # Build one period of blocks with < VB_THRESHOLD blocks signaling some unknown bit
+        self.send_blocks_with_version(node.p2p, VB_THRESHOLD - 1, VB_UNKNOWN_VERSION)
+        node.generate(VB_PERIOD - VB_THRESHOLD + 1)
+
+        # Check that we're not getting any versionbit-related errors in get*info()
+        assert(not VB_PATTERN.match(node.getmininginfo()["warnings"]))
+        assert(not VB_PATTERN.match(node.getnetworkinfo()["warnings"]))
+
+        self.log.info("Check that there is a warning if >50 blocks in the last 100 were an unknown version")
+        # Build one period of blocks with VB_THRESHOLD blocks signaling some unknown bit
+        self.send_blocks_with_version(node.p2p, VB_THRESHOLD, VB_UNKNOWN_VERSION)
+        node.generate(VB_PERIOD - VB_THRESHOLD)
+
+        # Check that get*info() shows the 51/100 unknown block version error.
+        assert(WARN_UNKNOWN_RULES_MINED in node.getmininginfo()["warnings"])
+        assert(WARN_UNKNOWN_RULES_MINED in node.getnetworkinfo()["warnings"])
+
+        self.log.info("Check that there is a warning if previous VB_BLOCKS have >=VB_THRESHOLD blocks with unknown versionbits version.")
+        # Mine a period worth of expected blocks so the generic block-version warning
+        # is cleared. This will move the versionbit state to ACTIVE.
+        node.generate(VB_PERIOD)
+
+        # Stop-start the node. This is required because bitcoind will only warn once about unknown versions or unknown rules activating.
+        self.restart_node(0)
+
+        # Generating one block guarantees that we'll get out of IBD
+        node.generate(1)
+        wait_until(lambda: not node.getblockchaininfo()['initialblockdownload'], timeout=10, lock=mininode_lock)
+        # Generating one more block will be enough to generate an error.
+        node.generate(1)
+        # Check that get*info() shows the versionbits unknown rules warning
+        assert(WARN_UNKNOWN_RULES_ACTIVE in node.getmininginfo()["warnings"])
+        assert(WARN_UNKNOWN_RULES_ACTIVE in node.getnetworkinfo()["warnings"])
+        # Check that the alert file shows the versionbits unknown rules warning
+        wait_until(lambda: self.versionbits_in_alert_file(), timeout=60)
+
+if __name__ == '__main__':
+    VersionBitsWarningTest().main()
diff --git a/test/functional/bitcoin_cli.py b/test/functional/interface_bitcoin_cli.py
index 996cbb8a12..d8c80ab34f 100755
--- a/test/functional/bitcoin_cli.py
+++ b/test/functional/interface_bitcoin_cli.py
@@ -35,8 +35,11 @@ class TestBitcoinCli(BitcoinTestFramework):
         assert_equal(["foo", "bar"], self.nodes[0].cli('-rpcuser=%s' % user, '-stdin', '-stdinrpcpass', input=password + "\nfoo\nbar").echo())
         assert_raises_process_error(1, "incorrect rpcuser or rpcpassword", self.nodes[0].cli('-rpcuser=%s' % user, '-stdin', '-stdinrpcpass', input="foo").echo)
 
+        self.log.info("Make sure that -getinfo with arguments fails")
+        assert_raises_process_error(1, "-getinfo takes no arguments", self.nodes[0].cli('-getinfo').help)
+
         self.log.info("Compare responses from `bitcoin-cli -getinfo` and the RPCs data is retrieved from.")
-        cli_get_info = self.nodes[0].cli('-getinfo').help()
+        cli_get_info = self.nodes[0].cli('-getinfo').send_cli()
         wallet_info = self.nodes[0].getwalletinfo()
         network_info = self.nodes[0].getnetworkinfo()
         blockchain_info = self.nodes[0].getblockchaininfo()
diff --git a/test/functional/httpbasics.py b/test/functional/interface_http.py
index c7682cb49d..cd6d744545 100755
--- a/test/functional/httpbasics.py
+++ b/test/functional/interface_http.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2014-2016 The Bitcoin Core developers
+# Copyright (c) 2014-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test the RPC HTTP basics."""
diff --git a/test/functional/rest.py b/test/functional/interface_rest.py
index 437111a4d7..9006e27cbe 100755
--- a/test/functional/rest.py
+++ b/test/functional/interface_rest.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2014-2016 The Bitcoin Core developers
+# Copyright (c) 2014-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test the REST API."""
diff --git a/test/functional/zmq_test.py b/test/functional/interface_zmq.py
index fa30318416..86ccea4394 100755
--- a/test/functional/zmq_test.py
+++ b/test/functional/interface_zmq.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2015-2016 The Bitcoin Core developers
+# Copyright (c) 2015-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test the ZMQ notification interface."""
diff --git a/test/functional/mempool_limit.py b/test/functional/mempool_limit.py
index e24dc5a464..e7ce3820d2 100755
--- a/test/functional/mempool_limit.py
+++ b/test/functional/mempool_limit.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2014-2016 The Bitcoin Core developers
+# Copyright (c) 2014-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test mempool limiting together/eviction with the wallet."""
@@ -17,10 +17,14 @@ class MempoolLimitTest(BitcoinTestFramework):
         txouts = gen_return_txouts()
         relayfee = self.nodes[0].getnetworkinfo()['relayfee']
 
+        self.log.info('Check that mempoolminfee is minrelytxfee')
+        assert_equal(self.nodes[0].getmempoolinfo()['minrelaytxfee'], Decimal('0.00001000'))
+        assert_equal(self.nodes[0].getmempoolinfo()['mempoolminfee'], Decimal('0.00001000'))
+
         txids = []
         utxos = create_confirmed_utxos(relayfee, self.nodes[0], 91)
 
-        #create a mempool tx that will be evicted
+        self.log.info('Create a mempool tx that will be evicted')
         us0 = utxos.pop()
         inputs = [{ "txid" : us0["txid"], "vout" : us0["vout"]}]
         outputs = {self.nodes[0].getnewaddress() : 0.0001}
@@ -37,10 +41,14 @@ class MempoolLimitTest(BitcoinTestFramework):
             txids.append([])
             txids[i] = create_lots_of_big_transactions(self.nodes[0], txouts, utxos[30*i:30*i+30], 30, (i+1)*base_fee)
 
-        # by now, the tx should be evicted, check confirmation state
+        self.log.info('The tx should be evicted by now')
         assert(txid not in self.nodes[0].getrawmempool())
         txdata = self.nodes[0].gettransaction(txid)
         assert(txdata['confirmations'] ==  0) #confirmation should still be 0
 
+        self.log.info('Check that mempoolminfee is larger than minrelytxfee')
+        assert_equal(self.nodes[0].getmempoolinfo()['minrelaytxfee'], Decimal('0.00001000'))
+        assert_greater_than(self.nodes[0].getmempoolinfo()['mempoolminfee'], Decimal('0.00001000'))
+
 if __name__ == '__main__':
     MempoolLimitTest().main()
diff --git a/test/functional/mempool_packages.py b/test/functional/mempool_packages.py
index b845c75681..a3e872a8c6 100755
--- a/test/functional/mempool_packages.py
+++ b/test/functional/mempool_packages.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2014-2016 The Bitcoin Core developers
+# Copyright (c) 2014-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test descendant package tracking code."""
diff --git a/test/functional/mempool_persist.py b/test/functional/mempool_persist.py
index 92f66be2ff..17f0967219 100755
--- a/test/functional/mempool_persist.py
+++ b/test/functional/mempool_persist.py
@@ -57,21 +57,28 @@ class MempoolPersistTest(BitcoinTestFramework):
         self.log.debug("Send 5 transactions from node2 (to its own address)")
         for i in range(5):
             self.nodes[2].sendtoaddress(self.nodes[2].getnewaddress(), Decimal("10"))
+        node2_balance = self.nodes[2].getbalance()
         self.sync_all()
 
         self.log.debug("Verify that node0 and node1 have 5 transactions in their mempools")
         assert_equal(len(self.nodes[0].getrawmempool()), 5)
         assert_equal(len(self.nodes[1].getrawmempool()), 5)
 
-        self.log.debug("Stop-start node0 and node1. Verify that node0 has the transactions in its mempool and node1 does not.")
+        self.log.debug("Stop-start the nodes. Verify that node0 has the transactions in its mempool and node1 does not. Verify that node2 calculates its balance correctly after loading wallet transactions.")
         self.stop_nodes()
+        self.start_node(1)  # Give this one a head-start, so we can be "extra-sure" that it didn't load anything later
         self.start_node(0)
-        self.start_node(1)
+        self.start_node(2)
         # Give bitcoind a second to reload the mempool
-        time.sleep(1)
-        wait_until(lambda: len(self.nodes[0].getrawmempool()) == 5)
+        wait_until(lambda: len(self.nodes[0].getrawmempool()) == 5, timeout=1)
+        wait_until(lambda: len(self.nodes[2].getrawmempool()) == 5, timeout=1)
+        # The others have loaded their mempool. If node_1 loaded anything, we'd probably notice by now:
         assert_equal(len(self.nodes[1].getrawmempool()), 0)
 
+        # Verify accounting of mempool transactions after restart is correct
+        self.nodes[2].syncwithvalidationinterfacequeue()  # Flush mempool to wallet
+        assert_equal(node2_balance, self.nodes[2].getbalance())
+
         self.log.debug("Stop-start node0 with -persistmempool=0. Verify that it doesn't load its mempool.dat file.")
         self.stop_nodes()
         self.start_node(0, extra_args=["-persistmempool=0"])
diff --git a/test/functional/mempool_reorg.py b/test/functional/mempool_reorg.py
index 2803371f5b..d6bb292a58 100755
--- a/test/functional/mempool_reorg.py
+++ b/test/functional/mempool_reorg.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2014-2016 The Bitcoin Core developers
+# Copyright (c) 2014-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test mempool re-org scenarios.
diff --git a/test/functional/mempool_resurrect_test.py b/test/functional/mempool_resurrect.py
index 1263c9306b..83e84da4bc 100755
--- a/test/functional/mempool_resurrect_test.py
+++ b/test/functional/mempool_resurrect.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2014-2016 The Bitcoin Core developers
+# Copyright (c) 2014-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test resurrection of mined transactions when the blockchain is re-organized."""
diff --git a/test/functional/mempool_spendcoinbase.py b/test/functional/mempool_spend_coinbase.py
index 6e8a635a76..db0738c08a 100755
--- a/test/functional/mempool_spendcoinbase.py
+++ b/test/functional/mempool_spend_coinbase.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2014-2016 The Bitcoin Core developers
+# Copyright (c) 2014-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test spending coinbase transactions.
diff --git a/test/functional/mining.py b/test/functional/mining_basic.py
index 9aee06864e..569bf71933 100755
--- a/test/functional/mining.py
+++ b/test/functional/mining_basic.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2014-2016 The Bitcoin Core developers
+# Copyright (c) 2014-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test mining RPCs
diff --git a/test/functional/getblocktemplate_longpoll.py b/test/functional/mining_getblocktemplate_longpoll.py
index 89768bd2fb..252ff4dbff 100755
--- a/test/functional/getblocktemplate_longpoll.py
+++ b/test/functional/mining_getblocktemplate_longpoll.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2014-2016 The Bitcoin Core developers
+# Copyright (c) 2014-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test longpolling with getblocktemplate."""
diff --git a/test/functional/prioritise_transaction.py b/test/functional/mining_prioritisetransaction.py
index bb56db9b40..57954ce321 100755
--- a/test/functional/prioritise_transaction.py
+++ b/test/functional/mining_prioritisetransaction.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2015-2016 The Bitcoin Core developers
+# Copyright (c) 2015-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test the prioritisetransaction mining RPC."""
@@ -15,6 +15,25 @@ class PrioritiseTransactionTest(BitcoinTestFramework):
         self.extra_args = [["-printpriority=1"], ["-printpriority=1"]]
 
     def run_test(self):
+        # Test `prioritisetransaction` required parameters
+        assert_raises_rpc_error(-1, "prioritisetransaction", self.nodes[0].prioritisetransaction)
+        assert_raises_rpc_error(-1, "prioritisetransaction", self.nodes[0].prioritisetransaction, '')
+        assert_raises_rpc_error(-1, "prioritisetransaction", self.nodes[0].prioritisetransaction, '', 0)
+
+        # Test `prioritisetransaction` invalid extra parameters
+        assert_raises_rpc_error(-1, "prioritisetransaction", self.nodes[0].prioritisetransaction, '', 0, 0, 0)
+
+        # Test `prioritisetransaction` invalid `txid`
+        assert_raises_rpc_error(-1, "txid must be hexadecimal string", self.nodes[0].prioritisetransaction, txid='foo', fee_delta=0)
+
+        # Test `prioritisetransaction` invalid `dummy`
+        txid = '1d1d4e24ed99057e84c3f80fd8fbec79ed9e1acee37da269356ecea000000000'
+        assert_raises_rpc_error(-1, "JSON value is not a number as expected", self.nodes[0].prioritisetransaction, txid, 'foo', 0)
+        assert_raises_rpc_error(-8, "Priority is no longer supported, dummy argument to prioritisetransaction must be 0.", self.nodes[0].prioritisetransaction, txid, 1, 0)
+
+        # Test `prioritisetransaction` invalid `fee_delta`
+        assert_raises_rpc_error(-1, "JSON value is not an integer as expected", self.nodes[0].prioritisetransaction, txid=txid, fee_delta='foo')
+
         self.txouts = gen_return_txouts()
         self.relayfee = self.nodes[0].getnetworkinfo()['relayfee']
 
diff --git a/test/functional/multiwallet.py b/test/functional/multiwallet.py
deleted file mode 100755
index 7a0fbce477..0000000000
--- a/test/functional/multiwallet.py
+++ /dev/null
@@ -1,90 +0,0 @@
-#!/usr/bin/env python3
-# Copyright (c) 2017 The Bitcoin Core developers
-# Distributed under the MIT software license, see the accompanying
-# file COPYING or http://www.opensource.org/licenses/mit-license.php.
-"""Test multiwallet.
-
-Verify that a bitcoind node can load multiple wallet files
-"""
-import os
-import shutil
-
-from test_framework.test_framework import BitcoinTestFramework
-from test_framework.util import assert_equal, assert_raises_rpc_error
-
-class MultiWalletTest(BitcoinTestFramework):
-    def set_test_params(self):
-        self.setup_clean_chain = True
-        self.num_nodes = 1
-        self.extra_args = [['-wallet=w1', '-wallet=w2', '-wallet=w3']]
-
-    def run_test(self):
-        assert_equal(set(self.nodes[0].listwallets()), {"w1", "w2", "w3"})
-
-        self.stop_node(0)
-
-        # should not initialize if there are duplicate wallets
-        self.assert_start_raises_init_error(0, ['-wallet=w1', '-wallet=w1'], 'Error loading wallet w1. Duplicate -wallet filename specified.')
-
-        # should not initialize if wallet file is a directory
-        os.mkdir(os.path.join(self.options.tmpdir, 'node0', 'regtest', 'w11'))
-        self.assert_start_raises_init_error(0, ['-wallet=w11'], 'Error loading wallet w11. -wallet filename must be a regular file.')
-
-        # should not initialize if one wallet is a copy of another
-        shutil.copyfile(os.path.join(self.options.tmpdir, 'node0', 'regtest', 'w2'),
-                        os.path.join(self.options.tmpdir, 'node0', 'regtest', 'w22'))
-        self.assert_start_raises_init_error(0, ['-wallet=w2', '-wallet=w22'], 'duplicates fileid')
-
-        # should not initialize if wallet file is a symlink
-        os.symlink(os.path.join(self.options.tmpdir, 'node0', 'regtest', 'w1'), os.path.join(self.options.tmpdir, 'node0', 'regtest', 'w12'))
-        self.assert_start_raises_init_error(0, ['-wallet=w12'], 'Error loading wallet w12. -wallet filename must be a regular file.')
-
-        self.start_node(0, self.extra_args[0])
-
-        w1 = self.nodes[0].get_wallet_rpc("w1")
-        w2 = self.nodes[0].get_wallet_rpc("w2")
-        w3 = self.nodes[0].get_wallet_rpc("w3")
-        wallet_bad = self.nodes[0].get_wallet_rpc("bad")
-
-        w1.generate(1)
-
-        # accessing invalid wallet fails
-        assert_raises_rpc_error(-18, "Requested wallet does not exist or is not loaded", wallet_bad.getwalletinfo)
-
-        # accessing wallet RPC without using wallet endpoint fails
-        assert_raises_rpc_error(-19, "Wallet file not specified", self.nodes[0].getwalletinfo)
-
-        # check w1 wallet balance
-        w1_info = w1.getwalletinfo()
-        assert_equal(w1_info['immature_balance'], 50)
-        w1_name = w1_info['walletname']
-        assert_equal(w1_name, "w1")
-
-        # check w2 wallet balance
-        w2_info = w2.getwalletinfo()
-        assert_equal(w2_info['immature_balance'], 0)
-        w2_name = w2_info['walletname']
-        assert_equal(w2_name, "w2")
-
-        w3_name = w3.getwalletinfo()['walletname']
-        assert_equal(w3_name, "w3")
-
-        assert_equal({"w1", "w2", "w3"}, {w1_name, w2_name, w3_name})
-
-        w1.generate(101)
-        assert_equal(w1.getbalance(), 100)
-        assert_equal(w2.getbalance(), 0)
-        assert_equal(w3.getbalance(), 0)
-
-        w1.sendtoaddress(w2.getnewaddress(), 1)
-        w1.sendtoaddress(w3.getnewaddress(), 2)
-        w1.generate(1)
-        assert_equal(w2.getbalance(), 1)
-        assert_equal(w3.getbalance(), 2)
-
-        batch = w1.batch([w1.getblockchaininfo.get_request(), w1.getwalletinfo.get_request()])
-        assert_equal(batch[0]["result"]["chain"], "regtest")
-        assert_equal(batch[1]["result"]["walletname"], "w1")
-
-if __name__ == '__main__':
-    MultiWalletTest().main()
diff --git a/test/functional/p2p-versionbits-warning.py b/test/functional/p2p-versionbits-warning.py
deleted file mode 100755
index 464ca5a312..0000000000
--- a/test/functional/p2p-versionbits-warning.py
+++ /dev/null
@@ -1,121 +0,0 @@
-#!/usr/bin/env python3
-# Copyright (c) 2016 The Bitcoin Core developers
-# Distributed under the MIT software license, see the accompanying
-# file COPYING or http://www.opensource.org/licenses/mit-license.php.
-"""Test version bits warning system.
-
-Generate chains with block versions that appear to be signalling unknown
-soft-forks, and test that warning alerts are generated.
-"""
-
-from test_framework.mininode import *
-from test_framework.test_framework import BitcoinTestFramework
-from test_framework.util import *
-import re
-from test_framework.blocktools import create_block, create_coinbase
-
-VB_PERIOD = 144 # versionbits period length for regtest
-VB_THRESHOLD = 108 # versionbits activation threshold for regtest
-VB_TOP_BITS = 0x20000000
-VB_UNKNOWN_BIT = 27 # Choose a bit unassigned to any deployment
-
-WARN_UNKNOWN_RULES_MINED = "Unknown block versions being mined! It's possible unknown rules are in effect"
-WARN_UNKNOWN_RULES_ACTIVE = "unknown new rules activated (versionbit {})".format(VB_UNKNOWN_BIT)
-VB_PATTERN = re.compile("^Warning.*versionbit")
-
-class TestNode(NodeConnCB):
-    def on_inv(self, conn, message):
-        pass
-
-class VersionBitsWarningTest(BitcoinTestFramework):
-    def set_test_params(self):
-        self.setup_clean_chain = True
-        self.num_nodes = 1
-
-    def setup_network(self):
-        self.alert_filename = os.path.join(self.options.tmpdir, "alert.txt")
-        # Open and close to create zero-length file
-        with open(self.alert_filename, 'w', encoding='utf8') as _:
-            pass
-        self.extra_args = [["-alertnotify=echo %s >> \"" + self.alert_filename + "\""]]
-        self.setup_nodes()
-
-    # Send numblocks blocks via peer with nVersionToUse set.
-    def send_blocks_with_version(self, peer, numblocks, nVersionToUse):
-        tip = self.nodes[0].getbestblockhash()
-        height = self.nodes[0].getblockcount()
-        block_time = self.nodes[0].getblockheader(tip)["time"]+1
-        tip = int(tip, 16)
-
-        for _ in range(numblocks):
-            block = create_block(tip, create_coinbase(height+1), block_time)
-            block.nVersion = nVersionToUse
-            block.solve()
-            peer.send_message(msg_block(block))
-            block_time += 1
-            height += 1
-            tip = block.sha256
-        peer.sync_with_ping()
-
-    def test_versionbits_in_alert_file(self):
-        with open(self.alert_filename, 'r', encoding='utf8') as f:
-            alert_text = f.read()
-        assert(VB_PATTERN.match(alert_text))
-
-    def run_test(self):
-        # Setup the p2p connection and start up the network thread.
-        self.nodes[0].add_p2p_connection(TestNode())
-
-        NetworkThread().start() # Start up network handling in another thread
-
-        # Test logic begins here
-        self.nodes[0].p2p.wait_for_verack()
-
-        # 1. Have the node mine one period worth of blocks
-        self.nodes[0].generate(VB_PERIOD)
-
-        # 2. Now build one period of blocks on the tip, with < VB_THRESHOLD
-        # blocks signaling some unknown bit.
-        nVersion = VB_TOP_BITS | (1<<VB_UNKNOWN_BIT)
-        self.send_blocks_with_version(self.nodes[0].p2p, VB_THRESHOLD-1, nVersion)
-
-        # Fill rest of period with regular version blocks
-        self.nodes[0].generate(VB_PERIOD - VB_THRESHOLD + 1)
-        # Check that we're not getting any versionbit-related errors in
-        # get*info()
-        assert(not VB_PATTERN.match(self.nodes[0].getmininginfo()["warnings"]))
-        assert(not VB_PATTERN.match(self.nodes[0].getnetworkinfo()["warnings"]))
-
-        # 3. Now build one period of blocks with >= VB_THRESHOLD blocks signaling
-        # some unknown bit
-        self.send_blocks_with_version(self.nodes[0].p2p, VB_THRESHOLD, nVersion)
-        self.nodes[0].generate(VB_PERIOD - VB_THRESHOLD)
-        # Might not get a versionbits-related alert yet, as we should
-        # have gotten a different alert due to more than 51/100 blocks
-        # being of unexpected version.
-        # Check that get*info() shows some kind of error.
-        assert(WARN_UNKNOWN_RULES_MINED in self.nodes[0].getmininginfo()["warnings"])
-        assert(WARN_UNKNOWN_RULES_MINED in self.nodes[0].getnetworkinfo()["warnings"])
-
-        # Mine a period worth of expected blocks so the generic block-version warning
-        # is cleared, and restart the node. This should move the versionbit state
-        # to ACTIVE.
-        self.nodes[0].generate(VB_PERIOD)
-        self.stop_nodes()
-        # Empty out the alert file
-        with open(self.alert_filename, 'w', encoding='utf8') as _:
-            pass
-        self.start_nodes()
-
-        # Connecting one block should be enough to generate an error.
-        self.nodes[0].generate(1)
-        assert(WARN_UNKNOWN_RULES_ACTIVE in self.nodes[0].getmininginfo()["warnings"])
-        assert(WARN_UNKNOWN_RULES_ACTIVE in self.nodes[0].getnetworkinfo()["warnings"])
-        self.stop_nodes()
-        self.test_versionbits_in_alert_file()
-
-        # Test framework expects the node to still be running...
-        self.start_nodes()
-
-if __name__ == '__main__':
-    VersionBitsWarningTest().main()
diff --git a/test/functional/p2p-compactblocks.py b/test/functional/p2p_compactblocks.py
index d2c4d39305..d9f461a049 100755
--- a/test/functional/p2p-compactblocks.py
+++ b/test/functional/p2p_compactblocks.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2016 The Bitcoin Core developers
+# Copyright (c) 2016-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test compact blocks (BIP 152).
@@ -15,7 +15,7 @@ from test_framework.blocktools import create_block, create_coinbase, add_witness
 from test_framework.script import CScript, OP_TRUE
 
 # TestNode: A peer we use to send messages to bitcoind, and store responses.
-class TestNode(NodeConnCB):
+class TestNode(P2PInterface):
     def __init__(self):
         super().__init__()
         self.last_sendcmpct = []
@@ -25,21 +25,21 @@ class TestNode(NodeConnCB):
         # so we can eg wait until a particular block is announced.
         self.announced_blockhashes = set()
 
-    def on_sendcmpct(self, conn, message):
+    def on_sendcmpct(self, message):
         self.last_sendcmpct.append(message)
 
-    def on_cmpctblock(self, conn, message):
+    def on_cmpctblock(self, message):
         self.block_announced = True
         self.last_message["cmpctblock"].header_and_shortids.header.calc_sha256()
         self.announced_blockhashes.add(self.last_message["cmpctblock"].header_and_shortids.header.sha256)
 
-    def on_headers(self, conn, message):
+    def on_headers(self, message):
         self.block_announced = True
         for x in self.last_message["headers"].headers:
             x.calc_sha256()
             self.announced_blockhashes.add(x.sha256)
 
-    def on_inv(self, conn, message):
+    def on_inv(self, message):
         for x in self.last_message["inv"].inv:
             if x.type == 2:
                 self.block_announced = True
@@ -60,7 +60,7 @@ class TestNode(NodeConnCB):
         msg = msg_getheaders()
         msg.locator.vHave = locator
         msg.hashstop = hashstop
-        self.connection.send_message(msg)
+        self.send_message(msg)
 
     def send_header_for_blocks(self, new_blocks):
         headers_message = msg_headers()
@@ -86,7 +86,7 @@ class TestNode(NodeConnCB):
         This is used when we want to send a message into the node that we expect
         will get us disconnected, eg an invalid block."""
         self.send_message(message)
-        wait_until(lambda: not self.connected, timeout=timeout, lock=mininode_lock)
+        wait_until(lambda: self.state != "connected", timeout=timeout, lock=mininode_lock)
 
 class CompactBlocksTest(BitcoinTestFramework):
     def set_test_params(self):
@@ -95,7 +95,7 @@ class CompactBlocksTest(BitcoinTestFramework):
         self.num_nodes = 2
         # This test was written assuming SegWit is activated using BIP9 at height 432 (3x confirmation window).
         # TODO: Rewrite this test to support SegWit being always active.
-        self.extra_args = [["-vbparams=segwit:0:0"], ["-vbparams=segwit:0:999999999999", "-txindex"]]
+        self.extra_args = [["-vbparams=segwit:0:0"], ["-vbparams=segwit:0:999999999999", "-txindex", "-deprecatedrpc=addwitnessaddress"]]
         self.utxos = []
 
     def build_block_on_tip(self, node, segwit=False):
@@ -792,7 +792,7 @@ class CompactBlocksTest(BitcoinTestFramework):
         self.segwit_node = self.nodes[1].add_p2p_connection(TestNode(), services=NODE_NETWORK|NODE_WITNESS)
         self.old_node = self.nodes[1].add_p2p_connection(TestNode(), services=NODE_NETWORK)
 
-        NetworkThread().start()  # Start up network handling in another thread
+        network_thread_start()
 
         self.test_node.wait_for_verack()
 
diff --git a/test/functional/disconnect_ban.py b/test/functional/p2p_disconnect_ban.py
index 59655d37fb..c6067befb2 100755
--- a/test/functional/disconnect_ban.py
+++ b/test/functional/p2p_disconnect_ban.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2014-2016 The Bitcoin Core developers
+# Copyright (c) 2014-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test node disconnect and ban behavior"""
diff --git a/test/functional/p2p-feefilter.py b/test/functional/p2p_feefilter.py
index 624278df40..47d9c55160 100755
--- a/test/functional/p2p-feefilter.py
+++ b/test/functional/p2p_feefilter.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2016 The Bitcoin Core developers
+# Copyright (c) 2016-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test processing of feefilter messages."""
@@ -22,12 +22,12 @@ def allInvsMatch(invsExpected, testnode):
         time.sleep(1)
     return False
 
-class TestNode(NodeConnCB):
+class TestNode(P2PInterface):
     def __init__(self):
         super().__init__()
         self.txinvs = []
 
-    def on_inv(self, conn, message):
+    def on_inv(self, message):
         for i in message.inv:
             if (i.type == 1):
                 self.txinvs.append(hashToHex(i.hash))
@@ -49,7 +49,7 @@ class FeeFilterTest(BitcoinTestFramework):
 
         # Setup the p2p connections and start up the network thread.
         self.nodes[0].add_p2p_connection(TestNode())
-        NetworkThread().start()
+        network_thread_start()
         self.nodes[0].p2p.wait_for_verack()
 
         # Test that invs are received for all txs at feerate of 20 sat/byte
diff --git a/test/functional/p2p-fingerprint.py b/test/functional/p2p_fingerprint.py
index 4b6446fc5b..93ef73e25e 100755
--- a/test/functional/p2p-fingerprint.py
+++ b/test/functional/p2p_fingerprint.py
@@ -13,18 +13,17 @@ import time
 from test_framework.blocktools import (create_block, create_coinbase)
 from test_framework.mininode import (
     CInv,
-    NetworkThread,
-    NodeConnCB,
+    P2PInterface,
     msg_headers,
     msg_block,
     msg_getdata,
     msg_getheaders,
+    network_thread_start,
     wait_until,
 )
 from test_framework.test_framework import BitcoinTestFramework
 from test_framework.util import (
     assert_equal,
-    p2p_port,
 )
 
 class P2PFingerprintTest(BitcoinTestFramework):
@@ -76,9 +75,9 @@ class P2PFingerprintTest(BitcoinTestFramework):
     # This does not currently test that stale blocks timestamped within the
     # last month but that have over a month's worth of work are also withheld.
     def run_test(self):
-        node0 = self.nodes[0].add_p2p_connection(NodeConnCB())
+        node0 = self.nodes[0].add_p2p_connection(P2PInterface())
 
-        NetworkThread().start()
+        network_thread_start()
         node0.wait_for_verack()
 
         # Set node time to 60 days ago
diff --git a/test/functional/invalidblockrequest.py b/test/functional/p2p_invalid_block.py
index 9f44b44927..edcade63c1 100755
--- a/test/functional/invalidblockrequest.py
+++ b/test/functional/p2p_invalid_block.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2015-2016 The Bitcoin Core developers
+# Copyright (c) 2015-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test node responses to invalid blocks.
@@ -15,6 +15,7 @@ from test_framework.test_framework import ComparisonTestFramework
 from test_framework.util import *
 from test_framework.comptool import TestManager, TestInstance, RejectResult
 from test_framework.blocktools import *
+from test_framework.mininode import network_thread_start
 import copy
 import time
 
@@ -32,7 +33,7 @@ class InvalidBlockRequestTest(ComparisonTestFramework):
         test.add_all_connections(self.nodes)
         self.tip = None
         self.block_time = None
-        NetworkThread().start() # Start up network handling in another thread
+        network_thread_start()
         test.run()
 
     def get_tests(self):
diff --git a/test/functional/invalidtxrequest.py b/test/functional/p2p_invalid_tx.py
index a22bd8f8cd..9c1100e070 100755
--- a/test/functional/invalidtxrequest.py
+++ b/test/functional/p2p_invalid_tx.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2015-2016 The Bitcoin Core developers
+# Copyright (c) 2015-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test node responses to invalid transactions.
@@ -28,7 +28,7 @@ class InvalidTxRequestTest(ComparisonTestFramework):
         test.add_all_connections(self.nodes)
         self.tip = None
         self.block_time = None
-        NetworkThread().start() # Start up network handling in another thread
+        network_thread_start()
         test.run()
 
     def get_tests(self):
diff --git a/test/functional/p2p-leaktests.py b/test/functional/p2p_leak.py
index 719a03914d..ce4e6e9144 100755
--- a/test/functional/p2p-leaktests.py
+++ b/test/functional/p2p_leak.py
@@ -20,7 +20,7 @@ from test_framework.util import *
 
 banscore = 10
 
-class CLazyNode(NodeConnCB):
+class CLazyNode(P2PInterface):
     def __init__(self):
         super().__init__()
         self.unexpected_msg = False
@@ -30,43 +30,42 @@ class CLazyNode(NodeConnCB):
         self.unexpected_msg = True
         self.log.info("should not have received message: %s" % message.command)
 
-    def on_open(self, conn):
-        self.connected = True
+    def on_open(self):
         self.ever_connected = True
 
-    def on_version(self, conn, message): self.bad_message(message)
-    def on_verack(self, conn, message): self.bad_message(message)
-    def on_reject(self, conn, message): self.bad_message(message)
-    def on_inv(self, conn, message): self.bad_message(message)
-    def on_addr(self, conn, message): self.bad_message(message)
-    def on_getdata(self, conn, message): self.bad_message(message)
-    def on_getblocks(self, conn, message): self.bad_message(message)
-    def on_tx(self, conn, message): self.bad_message(message)
-    def on_block(self, conn, message): self.bad_message(message)
-    def on_getaddr(self, conn, message): self.bad_message(message)
-    def on_headers(self, conn, message): self.bad_message(message)
-    def on_getheaders(self, conn, message): self.bad_message(message)
-    def on_ping(self, conn, message): self.bad_message(message)
-    def on_mempool(self, conn): self.bad_message(message)
-    def on_pong(self, conn, message): self.bad_message(message)
-    def on_feefilter(self, conn, message): self.bad_message(message)
-    def on_sendheaders(self, conn, message): self.bad_message(message)
-    def on_sendcmpct(self, conn, message): self.bad_message(message)
-    def on_cmpctblock(self, conn, message): self.bad_message(message)
-    def on_getblocktxn(self, conn, message): self.bad_message(message)
-    def on_blocktxn(self, conn, message): self.bad_message(message)
+    def on_version(self, message): self.bad_message(message)
+    def on_verack(self, message): self.bad_message(message)
+    def on_reject(self, message): self.bad_message(message)
+    def on_inv(self, message): self.bad_message(message)
+    def on_addr(self, message): self.bad_message(message)
+    def on_getdata(self, message): self.bad_message(message)
+    def on_getblocks(self, message): self.bad_message(message)
+    def on_tx(self, message): self.bad_message(message)
+    def on_block(self, message): self.bad_message(message)
+    def on_getaddr(self, message): self.bad_message(message)
+    def on_headers(self, message): self.bad_message(message)
+    def on_getheaders(self, message): self.bad_message(message)
+    def on_ping(self, message): self.bad_message(message)
+    def on_mempool(self, message): self.bad_message(message)
+    def on_pong(self, message): self.bad_message(message)
+    def on_feefilter(self, message): self.bad_message(message)
+    def on_sendheaders(self, message): self.bad_message(message)
+    def on_sendcmpct(self, message): self.bad_message(message)
+    def on_cmpctblock(self, message): self.bad_message(message)
+    def on_getblocktxn(self, message): self.bad_message(message)
+    def on_blocktxn(self, message): self.bad_message(message)
 
 # Node that never sends a version. We'll use this to send a bunch of messages
 # anyway, and eventually get disconnected.
 class CNodeNoVersionBan(CLazyNode):
     # send a bunch of veracks without sending a message. This should get us disconnected.
     # NOTE: implementation-specific check here. Remove if bitcoind ban behavior changes
-    def on_open(self, conn):
-        super().on_open(conn)
+    def on_open(self):
+        super().on_open()
         for i in range(banscore):
             self.send_message(msg_verack())
 
-    def on_reject(self, conn, message): pass
+    def on_reject(self, message): pass
 
 # Node that never sends a version. This one just sits idle and hopes to receive
 # any message (it shouldn't!)
@@ -80,15 +79,15 @@ class CNodeNoVerackIdle(CLazyNode):
         self.version_received = False
         super().__init__()
 
-    def on_reject(self, conn, message): pass
-    def on_verack(self, conn, message): pass
+    def on_reject(self, message): pass
+    def on_verack(self, message): pass
     # When version is received, don't reply with a verack. Instead, see if the
     # node will give us a message that it shouldn't. This is not an exhaustive
     # list!
-    def on_version(self, conn, message):
+    def on_version(self, message):
         self.version_received = True
-        conn.send_message(msg_ping())
-        conn.send_message(msg_getaddr())
+        self.send_message(msg_ping())
+        self.send_message(msg_getaddr())
 
 class P2PLeakTest(BitcoinTestFramework):
     def set_test_params(self):
@@ -104,7 +103,7 @@ class P2PLeakTest(BitcoinTestFramework):
         unsupported_service_bit5_node = self.nodes[0].add_p2p_connection(CLazyNode(), services=NODE_NETWORK|NODE_UNSUPPORTED_SERVICE_BIT_5)
         unsupported_service_bit7_node = self.nodes[0].add_p2p_connection(CLazyNode(), services=NODE_NETWORK|NODE_UNSUPPORTED_SERVICE_BIT_7)
 
-        NetworkThread().start()  # Start up network handling in another thread
+        network_thread_start()
 
         wait_until(lambda: no_version_bannode.ever_connected, timeout=10, lock=mininode_lock)
         wait_until(lambda: no_version_idlenode.ever_connected, timeout=10, lock=mininode_lock)
@@ -119,16 +118,17 @@ class P2PLeakTest(BitcoinTestFramework):
         time.sleep(5)
 
         #This node should have been banned
-        assert not no_version_bannode.connected
+        assert no_version_bannode.state != "connected"
 
         # These nodes should have been disconnected
-        assert not unsupported_service_bit5_node.connected
-        assert not unsupported_service_bit7_node.connected
+        assert unsupported_service_bit5_node.state != "connected"
+        assert unsupported_service_bit7_node.state != "connected"
 
         self.nodes[0].disconnect_p2ps()
 
-        # Wait until all connections are closed
+        # Wait until all connections are closed and the network thread has terminated
         wait_until(lambda: len(self.nodes[0].getpeerinfo()) == 0)
+        network_thread_join()
 
         # Make sure no unexpected messages came in
         assert(no_version_bannode.unexpected_msg == False)
@@ -140,10 +140,11 @@ class P2PLeakTest(BitcoinTestFramework):
         self.log.info("Service bits 5 and 7 are allowed after August 1st 2018")
         self.nodes[0].setmocktime(1533168000)  # August 2nd 2018
 
-        allowed_service_bit5_node = self.nodes[0].add_p2p_connection(NodeConnCB(), services=NODE_NETWORK|NODE_UNSUPPORTED_SERVICE_BIT_5)
-        allowed_service_bit7_node = self.nodes[0].add_p2p_connection(NodeConnCB(), services=NODE_NETWORK|NODE_UNSUPPORTED_SERVICE_BIT_7)
+        allowed_service_bit5_node = self.nodes[0].add_p2p_connection(P2PInterface(), services=NODE_NETWORK|NODE_UNSUPPORTED_SERVICE_BIT_5)
+        allowed_service_bit7_node = self.nodes[0].add_p2p_connection(P2PInterface(), services=NODE_NETWORK|NODE_UNSUPPORTED_SERVICE_BIT_7)
 
-        NetworkThread().start()  # Network thread stopped when all previous NodeConnCBs disconnected. Restart it
+        # Network thread stopped when all previous P2PInterfaces disconnected. Restart it
+        network_thread_start()
 
         wait_until(lambda: allowed_service_bit5_node.message_count["verack"], lock=mininode_lock)
         wait_until(lambda: allowed_service_bit7_node.message_count["verack"], lock=mininode_lock)
diff --git a/test/functional/p2p-mempool.py b/test/functional/p2p_mempool.py
index be467c4223..485a8af3d0 100755
--- a/test/functional/p2p-mempool.py
+++ b/test/functional/p2p_mempool.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2015-2016 The Bitcoin Core developers
+# Copyright (c) 2015-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test p2p mempool message.
@@ -20,8 +20,8 @@ class P2PMempoolTests(BitcoinTestFramework):
 
     def run_test(self):
         # Add a p2p connection
-        self.nodes[0].add_p2p_connection(NodeConnCB())
-        NetworkThread().start()
+        self.nodes[0].add_p2p_connection(P2PInterface())
+        network_thread_start()
         self.nodes[0].p2p.wait_for_verack()
 
         #request mempool
diff --git a/test/functional/p2p_node_network_limited.py b/test/functional/p2p_node_network_limited.py
new file mode 100755
index 0000000000..70415e0168
--- /dev/null
+++ b/test/functional/p2p_node_network_limited.py
@@ -0,0 +1,57 @@
+#!/usr/bin/env python3
+# Copyright (c) 2017 The Bitcoin Core developers
+# Distributed under the MIT software license, see the accompanying
+# file COPYING or http://www.opensource.org/licenses/mit-license.php.
+"""Tests NODE_NETWORK_LIMITED.
+
+Tests that a node configured with -prune=550 signals NODE_NETWORK_LIMITED correctly
+and that it responds to getdata requests for blocks correctly:
+    - send a block within 288 + 2 of the tip
+    - disconnect peers who request blocks older than that."""
+from test_framework.messages import CInv, msg_getdata
+from test_framework.mininode import NODE_BLOOM, NODE_NETWORK_LIMITED, NODE_WITNESS, NetworkThread, P2PInterface
+from test_framework.test_framework import BitcoinTestFramework
+from test_framework.util import assert_equal
+
+class P2PIgnoreInv(P2PInterface):
+    def on_inv(self, message):
+        # The node will send us invs for other blocks. Ignore them.
+        pass
+
+    def send_getdata_for_block(self, blockhash):
+        getdata_request = msg_getdata()
+        getdata_request.inv.append(CInv(2, int(blockhash, 16)))
+        self.send_message(getdata_request)
+
+class NodeNetworkLimitedTest(BitcoinTestFramework):
+    def set_test_params(self):
+        self.setup_clean_chain = True
+        self.num_nodes = 1
+        self.extra_args = [['-prune=550']]
+
+    def run_test(self):
+        node = self.nodes[0].add_p2p_connection(P2PIgnoreInv())
+        NetworkThread().start()
+        node.wait_for_verack()
+
+        expected_services = NODE_BLOOM | NODE_WITNESS | NODE_NETWORK_LIMITED
+
+        self.log.info("Check that node has signalled expected services.")
+        assert_equal(node.nServices, expected_services)
+
+        self.log.info("Check that the localservices is as expected.")
+        assert_equal(int(self.nodes[0].getnetworkinfo()['localservices'], 16), expected_services)
+
+        self.log.info("Mine enough blocks to reach the NODE_NETWORK_LIMITED range.")
+        blocks = self.nodes[0].generate(292)
+
+        self.log.info("Make sure we can max retrive block at tip-288.")
+        node.send_getdata_for_block(blocks[1])  # last block in valid range
+        node.wait_for_block(int(blocks[1], 16), timeout=3)
+
+        self.log.info("Requesting block at height 2 (tip-289) must fail (ignored).")
+        node.send_getdata_for_block(blocks[0])  # first block outside of the 288+2 limit
+        node.wait_for_disconnect(5)
+
+if __name__ == '__main__':
+    NodeNetworkLimitedTest().main()
diff --git a/test/functional/p2p-segwit.py b/test/functional/p2p_segwit.py
index b940bc4096..20e4805df0 100755
--- a/test/functional/p2p-segwit.py
+++ b/test/functional/p2p_segwit.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2016 The Bitcoin Core developers
+# Copyright (c) 2016-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test segwit transactions and blocks on P2P network."""
@@ -25,19 +25,46 @@ MAX_SIGOP_COST = 80000
 # Calculate the virtual size of a witness block:
 # (base + witness/4)
 def get_virtual_size(witness_block):
-    base_size = len(witness_block.serialize())
+    base_size = len(witness_block.serialize(with_witness=False))
     total_size = len(witness_block.serialize(with_witness=True))
     # the "+3" is so we round up
     vsize = int((3*base_size + total_size + 3)/4)
     return vsize
 
-class TestNode(NodeConnCB):
-    def __init__(self, rpc):
+def test_transaction_acceptance(rpc, p2p, tx, with_witness, accepted, reason=None):
+    """Send a transaction to the node and check that it's accepted to the mempool
+
+    - Submit the transaction over the p2p interface
+    - use the getrawmempool rpc to check for acceptance."""
+    tx_message = msg_tx(tx)
+    if with_witness:
+        tx_message = msg_witness_tx(tx)
+    p2p.send_message(tx_message)
+    p2p.sync_with_ping()
+    assert_equal(tx.hash in rpc.getrawmempool(), accepted)
+    if (reason != None and not accepted):
+        # Check the rejection reason as well.
+        with mininode_lock:
+            assert_equal(p2p.last_message["reject"].reason, reason)
+
+def test_witness_block(rpc, p2p, block, accepted, with_witness=True):
+    """Send a block to the node and check that it's accepted
+
+    - Submit the block over the p2p interface
+    - use the getbestblockhash rpc to check for acceptance."""
+    if with_witness:
+        p2p.send_message(msg_witness_block(block))
+    else:
+        p2p.send_message(msg_block(block))
+    p2p.sync_with_ping()
+    assert_equal(rpc.getbestblockhash() == block.hash, accepted)
+
+class TestNode(P2PInterface):
+    def __init__(self):
         super().__init__()
         self.getdataset = set()
-        self.rpc = rpc
 
-    def on_getdata(self, conn, message):
+    def on_getdata(self, message):
         for inv in message.inv:
             self.getdataset.add(inv.hash)
 
@@ -68,27 +95,6 @@ class TestNode(NodeConnCB):
         self.wait_for_block(blockhash, timeout)
         return self.last_message["block"].block
 
-    def test_transaction_acceptance(self, tx, with_witness, accepted, reason=None):
-        tx_message = msg_tx(tx)
-        if with_witness:
-            tx_message = msg_witness_tx(tx)
-        self.send_message(tx_message)
-        self.sync_with_ping()
-        assert_equal(tx.hash in self.rpc.getrawmempool(), accepted)
-        if (reason != None and not accepted):
-            # Check the rejection reason as well.
-            with mininode_lock:
-                assert_equal(self.last_message["reject"].reason, reason)
-
-    # Test whether a witness block had the correct effect on the tip
-    def test_witness_block(self, block, accepted, with_witness=True):
-        if with_witness:
-            self.send_message(msg_witness_block(block))
-        else:
-            self.send_message(msg_block(block))
-        self.sync_with_ping()
-        assert_equal(self.rpc.getbestblockhash() == block.hash, accepted)
-
 # Used to keep track of anyone-can-spend outputs that we can use in the tests
 class UTXO():
     def __init__(self, sha256, n, nValue):
@@ -142,7 +148,7 @@ class SegWitTest(BitcoinTestFramework):
     ''' Individual tests '''
     def test_witness_services(self):
         self.log.info("Verifying NODE_WITNESS service bit")
-        assert((self.test_node.connection.nServices & NODE_WITNESS) != 0)
+        assert((self.test_node.nServices & NODE_WITNESS) != 0)
 
 
     # See if sending a regular transaction works, and create a utxo
@@ -201,7 +207,7 @@ class SegWitTest(BitcoinTestFramework):
         self.update_witness_block_with_transactions(block, [tx])
         # Sending witness data before activation is not allowed (anti-spam
         # rule).
-        self.test_node.test_witness_block(block, accepted=False)
+        test_witness_block(self.nodes[0].rpc, self.test_node, block, accepted=False)
         # TODO: fix synchronization so we can test reject reason
         # Right now, bitcoind delays sending reject messages for blocks
         # until the future, making synchronization here difficult.
@@ -228,7 +234,7 @@ class SegWitTest(BitcoinTestFramework):
         tx2.vin.append(CTxIn(COutPoint(tx.sha256, 0), b""))
         tx2.vout.append(CTxOut(tx.vout[0].nValue-1000, scriptPubKey))
         tx2.rehash()
-        self.test_node.test_transaction_acceptance(tx2, False, True)
+        test_transaction_acceptance(self.nodes[0].rpc, self.test_node, tx2, False, True)
         self.nodes[0].generate(1)
         sync_blocks(self.nodes)
 
@@ -245,18 +251,18 @@ class SegWitTest(BitcoinTestFramework):
         tx3.rehash()
         # Note that this should be rejected for the premature witness reason,
         # rather than a policy check, since segwit hasn't activated yet.
-        self.std_node.test_transaction_acceptance(tx3, True, False, b'no-witness-yet')
+        test_transaction_acceptance(self.nodes[1].rpc, self.std_node, tx3, True, False, b'no-witness-yet')
 
         # If we send without witness, it should be accepted.
-        self.std_node.test_transaction_acceptance(tx3, False, True)
+        test_transaction_acceptance(self.nodes[1].rpc, self.std_node, tx3, False, True)
 
         # Now create a new anyone-can-spend utxo for the next test.
         tx4 = CTransaction()
         tx4.vin.append(CTxIn(COutPoint(tx3.sha256, 0), CScript([p2sh_program])))
         tx4.vout.append(CTxOut(tx3.vout[0].nValue-1000, CScript([OP_TRUE])))
         tx4.rehash()
-        self.test_node.test_transaction_acceptance(tx3, False, True)
-        self.test_node.test_transaction_acceptance(tx4, False, True)
+        test_transaction_acceptance(self.nodes[0].rpc, self.test_node, tx3, False, True)
+        test_transaction_acceptance(self.nodes[0].rpc, self.test_node, tx4, False, True)
 
         self.nodes[0].generate(1)
         sync_blocks(self.nodes)
@@ -317,7 +323,7 @@ class SegWitTest(BitcoinTestFramework):
         assert(msg_witness_block(block).serialize() != msg_block(block).serialize())
 
         # This empty block should be valid.
-        self.test_node.test_witness_block(block, accepted=True)
+        test_witness_block(self.nodes[0].rpc, self.test_node, block, accepted=True)
 
         # Try to tweak the nonce
         block_2 = self.build_next_block()
@@ -328,7 +334,7 @@ class SegWitTest(BitcoinTestFramework):
         assert(block_2.vtx[0].vout[-1] != block.vtx[0].vout[-1])
 
         # This should also be valid.
-        self.test_node.test_witness_block(block_2, accepted=True)
+        test_witness_block(self.nodes[0].rpc, self.test_node, block_2, accepted=True)
 
         # Now test commitments with actual transactions
         assert (len(self.utxo) > 0)
@@ -361,7 +367,7 @@ class SegWitTest(BitcoinTestFramework):
         block_3.rehash()
         block_3.solve()
 
-        self.test_node.test_witness_block(block_3, accepted=False)
+        test_witness_block(self.nodes[0].rpc, self.test_node, block_3, accepted=False)
 
         # Add a different commitment with different nonce, but in the
         # right location, and with some funds burned(!).
@@ -375,7 +381,7 @@ class SegWitTest(BitcoinTestFramework):
         block_3.rehash()
         assert(len(block_3.vtx[0].vout) == 4) # 3 OP_returns
         block_3.solve()
-        self.test_node.test_witness_block(block_3, accepted=True)
+        test_witness_block(self.nodes[0].rpc, self.test_node, block_3, accepted=True)
 
         # Finally test that a block with no witness transactions can
         # omit the commitment.
@@ -387,7 +393,7 @@ class SegWitTest(BitcoinTestFramework):
         block_4.vtx.append(tx3)
         block_4.hashMerkleRoot = block_4.calc_merkle_root()
         block_4.solve()
-        self.test_node.test_witness_block(block_4, with_witness=False, accepted=True)
+        test_witness_block(self.nodes[0].rpc, self.test_node, block_4, with_witness=False, accepted=True)
 
         # Update available utxo's for use in later test.
         self.utxo.pop(0)
@@ -428,11 +434,11 @@ class SegWitTest(BitcoinTestFramework):
         # Change the nonce -- should not cause the block to be permanently
         # failed
         block.vtx[0].wit.vtxinwit[0].scriptWitness.stack = [ ser_uint256(1) ]
-        self.test_node.test_witness_block(block, accepted=False)
+        test_witness_block(self.nodes[0].rpc, self.test_node, block, accepted=False)
 
         # Changing the witness nonce doesn't change the block hash
         block.vtx[0].wit.vtxinwit[0].scriptWitness.stack = [ ser_uint256(0) ]
-        self.test_node.test_witness_block(block, accepted=True)
+        test_witness_block(self.nodes[0].rpc, self.test_node, block, accepted=True)
 
 
     def test_witness_block_size(self):
@@ -497,7 +503,7 @@ class SegWitTest(BitcoinTestFramework):
         # limit
         assert(len(block.serialize(True)) > 2*1024*1024)
 
-        self.test_node.test_witness_block(block, accepted=False)
+        test_witness_block(self.nodes[0].rpc, self.test_node, block, accepted=False)
 
         # Now resize the second transaction to make the block fit.
         cur_length = len(block.vtx[-1].wit.vtxinwit[0].scriptWitness.stack[0])
@@ -507,7 +513,7 @@ class SegWitTest(BitcoinTestFramework):
         block.solve()
         assert(get_virtual_size(block) == MAX_BLOCK_BASE_SIZE)
 
-        self.test_node.test_witness_block(block, accepted=True)
+        test_witness_block(self.nodes[0].rpc, self.test_node, block, accepted=True)
 
         # Update available utxo's
         self.utxo.pop(0)
@@ -574,7 +580,7 @@ class SegWitTest(BitcoinTestFramework):
         self.update_witness_block_with_transactions(block, [tx])
 
         # Extra witness data should not be allowed.
-        self.test_node.test_witness_block(block, accepted=False)
+        test_witness_block(self.nodes[0].rpc, self.test_node, block, accepted=False)
 
         # Try extra signature data.  Ok if we're not spending a witness output.
         block.vtx[1].wit.vtxinwit = []
@@ -583,7 +589,7 @@ class SegWitTest(BitcoinTestFramework):
         add_witness_commitment(block)
         block.solve()
 
-        self.test_node.test_witness_block(block, accepted=True)
+        test_witness_block(self.nodes[0].rpc, self.test_node, block, accepted=True)
 
         # Now try extra witness/signature data on an input that DOES require a
         # witness
@@ -599,7 +605,7 @@ class SegWitTest(BitcoinTestFramework):
         self.update_witness_block_with_transactions(block, [tx2])
 
         # This has extra witness data, so it should fail.
-        self.test_node.test_witness_block(block, accepted=False)
+        test_witness_block(self.nodes[0].rpc, self.test_node, block, accepted=False)
 
         # Now get rid of the extra witness, but add extra scriptSig data
         tx2.vin[0].scriptSig = CScript([OP_TRUE])
@@ -611,7 +617,7 @@ class SegWitTest(BitcoinTestFramework):
         block.solve()
 
         # This has extra signature data for a witness input, so it should fail.
-        self.test_node.test_witness_block(block, accepted=False)
+        test_witness_block(self.nodes[0].rpc, self.test_node, block, accepted=False)
 
         # Now get rid of the extra scriptsig on the witness input, and verify
         # success (even with extra scriptsig data in the non-witness input)
@@ -620,7 +626,7 @@ class SegWitTest(BitcoinTestFramework):
         add_witness_commitment(block)
         block.solve()
 
-        self.test_node.test_witness_block(block, accepted=True)
+        test_witness_block(self.nodes[0].rpc, self.test_node, block, accepted=True)
 
         # Update utxo for later tests
         self.utxo.pop(0)
@@ -653,14 +659,14 @@ class SegWitTest(BitcoinTestFramework):
         tx2.rehash()
 
         self.update_witness_block_with_transactions(block, [tx, tx2])
-        self.test_node.test_witness_block(block, accepted=False)
+        test_witness_block(self.nodes[0].rpc, self.test_node, block, accepted=False)
 
         # Now reduce the length of the stack element
         tx2.wit.vtxinwit[0].scriptWitness.stack[0] = b'a'*(MAX_SCRIPT_ELEMENT_SIZE)
 
         add_witness_commitment(block)
         block.solve()
-        self.test_node.test_witness_block(block, accepted=True)
+        test_witness_block(self.nodes[0].rpc, self.test_node, block, accepted=True)
 
         # Update the utxo for later tests
         self.utxo.pop()
@@ -695,7 +701,7 @@ class SegWitTest(BitcoinTestFramework):
 
         self.update_witness_block_with_transactions(block, [tx, tx2])
 
-        self.test_node.test_witness_block(block, accepted=False)
+        test_witness_block(self.nodes[0].rpc, self.test_node, block, accepted=False)
 
         # Try again with one less byte in the witness program
         witness_program = CScript([b'a'*520]*19 + [OP_DROP]*62 + [OP_TRUE])
@@ -710,7 +716,7 @@ class SegWitTest(BitcoinTestFramework):
         tx2.rehash()
         block.vtx = [block.vtx[0]]
         self.update_witness_block_with_transactions(block, [tx, tx2])
-        self.test_node.test_witness_block(block, accepted=True)
+        test_witness_block(self.nodes[0].rpc, self.test_node, block, accepted=True)
 
         self.utxo.pop()
         self.utxo.append(UTXO(tx2.sha256, 0, tx2.vout[0].nValue))
@@ -736,7 +742,7 @@ class SegWitTest(BitcoinTestFramework):
 
         block = self.build_next_block()
         self.update_witness_block_with_transactions(block, [tx])
-        self.test_node.test_witness_block(block, accepted=True)
+        test_witness_block(self.nodes[0].rpc, self.test_node, block, accepted=True)
 
         # Try various ways to spend tx that should all break.
         # This "broken" transaction serializer will not normalize
@@ -771,7 +777,7 @@ class SegWitTest(BitcoinTestFramework):
 
         block = self.build_next_block()
         self.update_witness_block_with_transactions(block, [tx2])
-        self.test_node.test_witness_block(block, accepted=False)
+        test_witness_block(self.nodes[0].rpc, self.test_node, block, accepted=False)
 
         # Now try using a too short vtxinwit
         tx2.wit.vtxinwit.pop()
@@ -779,7 +785,7 @@ class SegWitTest(BitcoinTestFramework):
 
         block.vtx = [block.vtx[0]]
         self.update_witness_block_with_transactions(block, [tx2])
-        self.test_node.test_witness_block(block, accepted=False)
+        test_witness_block(self.nodes[0].rpc, self.test_node, block, accepted=False)
 
         # Now make one of the intermediate witnesses be incorrect
         tx2.wit.vtxinwit.append(CTxInWitness())
@@ -788,13 +794,13 @@ class SegWitTest(BitcoinTestFramework):
 
         block.vtx = [block.vtx[0]]
         self.update_witness_block_with_transactions(block, [tx2])
-        self.test_node.test_witness_block(block, accepted=False)
+        test_witness_block(self.nodes[0].rpc, self.test_node, block, accepted=False)
 
         # Fix the broken witness and the block should be accepted.
         tx2.wit.vtxinwit[5].scriptWitness.stack = [b'a', witness_program]
         block.vtx = [block.vtx[0]]
         self.update_witness_block_with_transactions(block, [tx2])
-        self.test_node.test_witness_block(block, accepted=True)
+        test_witness_block(self.nodes[0].rpc, self.test_node, block, accepted=True)
 
         self.utxo.pop()
         self.utxo.append(UTXO(tx2.sha256, 0, tx2.vout[0].nValue))
@@ -834,11 +840,11 @@ class SegWitTest(BitcoinTestFramework):
         # its from)
         assert_equal(len(self.nodes[0].getrawmempool()), 0)
         assert_equal(len(self.nodes[1].getrawmempool()), 0)
-        self.old_node.test_transaction_acceptance(tx, with_witness=True, accepted=False)
-        self.test_node.test_transaction_acceptance(tx, with_witness=True, accepted=False)
+        test_transaction_acceptance(self.nodes[0].rpc, self.old_node, tx, with_witness=True, accepted=False)
+        test_transaction_acceptance(self.nodes[0].rpc, self.test_node, tx, with_witness=True, accepted=False)
 
         # But eliminating the witness should fix it
-        self.test_node.test_transaction_acceptance(tx, with_witness=False, accepted=True)
+        test_transaction_acceptance(self.nodes[0].rpc, self.test_node, tx, with_witness=False, accepted=True)
 
         # Cleanup: mine the first transaction and update utxo
         self.nodes[0].generate(1)
@@ -870,11 +876,11 @@ class SegWitTest(BitcoinTestFramework):
         # Verify that unnecessary witnesses are rejected.
         self.test_node.announce_tx_and_wait_for_getdata(tx)
         assert_equal(len(self.nodes[0].getrawmempool()), 0)
-        self.test_node.test_transaction_acceptance(tx, with_witness=True, accepted=False)
+        test_transaction_acceptance(self.nodes[0].rpc, self.test_node, tx, with_witness=True, accepted=False)
 
         # Verify that removing the witness succeeds.
         self.test_node.announce_tx_and_wait_for_getdata(tx)
-        self.test_node.test_transaction_acceptance(tx, with_witness=False, accepted=True)
+        test_transaction_acceptance(self.nodes[0].rpc, self.test_node, tx, with_witness=False, accepted=True)
 
         # Now try to add extra witness data to a valid witness tx.
         witness_program = CScript([OP_TRUE])
@@ -899,24 +905,24 @@ class SegWitTest(BitcoinTestFramework):
 
         # Node will not be blinded to the transaction
         self.std_node.announce_tx_and_wait_for_getdata(tx3)
-        self.std_node.test_transaction_acceptance(tx3, True, False, b'tx-size')
+        test_transaction_acceptance(self.nodes[1].rpc, self.std_node, tx3, True, False, b'tx-size')
         self.std_node.announce_tx_and_wait_for_getdata(tx3)
-        self.std_node.test_transaction_acceptance(tx3, True, False, b'tx-size')
+        test_transaction_acceptance(self.nodes[1].rpc, self.std_node, tx3, True, False, b'tx-size')
 
         # Remove witness stuffing, instead add extra witness push on stack
         tx3.vout[0] = CTxOut(tx2.vout[0].nValue-1000, CScript([OP_TRUE]))
         tx3.wit.vtxinwit[0].scriptWitness.stack = [CScript([CScriptNum(1)]), witness_program ]
         tx3.rehash()
 
-        self.test_node.test_transaction_acceptance(tx2, with_witness=True, accepted=True)
-        self.test_node.test_transaction_acceptance(tx3, with_witness=True, accepted=False)
+        test_transaction_acceptance(self.nodes[0].rpc, self.test_node, tx2, with_witness=True, accepted=True)
+        test_transaction_acceptance(self.nodes[0].rpc, self.test_node, tx3, with_witness=True, accepted=False)
 
         # Get rid of the extra witness, and verify acceptance.
         tx3.wit.vtxinwit[0].scriptWitness.stack = [ witness_program ]
         # Also check that old_node gets a tx announcement, even though this is
         # a witness transaction.
         self.old_node.wait_for_inv([CInv(1, tx2.sha256)]) # wait until tx2 was inv'ed
-        self.test_node.test_transaction_acceptance(tx3, with_witness=True, accepted=True)
+        test_transaction_acceptance(self.nodes[0].rpc, self.test_node, tx3, with_witness=True, accepted=True)
         self.old_node.wait_for_inv([CInv(1, tx3.sha256)])
 
         # Test that getrawtransaction returns correct witness information
@@ -955,20 +961,20 @@ class SegWitTest(BitcoinTestFramework):
 
         self.test_node.announce_block_and_wait_for_getdata(block1, use_header=False)
         assert(self.test_node.last_message["getdata"].inv[0].type == blocktype)
-        self.test_node.test_witness_block(block1, True)
+        test_witness_block(self.nodes[0].rpc, self.test_node, block1, True)
 
         block2 = self.build_next_block(nVersion=4)
         block2.solve()
 
         self.test_node.announce_block_and_wait_for_getdata(block2, use_header=True)
         assert(self.test_node.last_message["getdata"].inv[0].type == blocktype)
-        self.test_node.test_witness_block(block2, True)
+        test_witness_block(self.nodes[0].rpc, self.test_node, block2, True)
 
         block3 = self.build_next_block(nVersion=(VB_TOP_BITS | (1<<15)))
         block3.solve()
         self.test_node.announce_block_and_wait_for_getdata(block3, use_header=True)
         assert(self.test_node.last_message["getdata"].inv[0].type == blocktype)
-        self.test_node.test_witness_block(block3, True)
+        test_witness_block(self.nodes[0].rpc, self.test_node, block3, True)
 
         # Check that we can getdata for witness blocks or regular blocks,
         # and the right thing happens.
@@ -998,7 +1004,7 @@ class SegWitTest(BitcoinTestFramework):
             # This gives us a witness commitment.
             assert(len(block.vtx[0].wit.vtxinwit) == 1)
             assert(len(block.vtx[0].wit.vtxinwit[0].scriptWitness.stack) == 1)
-            self.test_node.test_witness_block(block, accepted=True)
+            test_witness_block(self.nodes[0].rpc, self.test_node, block, accepted=True)
             # Now try to retrieve it...
             rpc_block = self.nodes[0].getblock(block.hash, False)
             non_wit_block = self.test_node.request_block(block.sha256, 2)
@@ -1052,7 +1058,7 @@ class SegWitTest(BitcoinTestFramework):
         p2sh_tx.rehash()
 
         # Mine it on test_node to create the confirmed output.
-        self.test_node.test_transaction_acceptance(p2sh_tx, with_witness=True, accepted=True)
+        test_transaction_acceptance(self.nodes[0].rpc, self.test_node, p2sh_tx, with_witness=True, accepted=True)
         self.nodes[0].generate(1)
         sync_blocks(self.nodes)
 
@@ -1064,7 +1070,7 @@ class SegWitTest(BitcoinTestFramework):
         tx.vout.append(CTxOut(8000, scriptPubKey)) # Might burn this later
         tx.rehash()
 
-        self.std_node.test_transaction_acceptance(tx, with_witness=True, accepted=segwit_activated)
+        test_transaction_acceptance(self.nodes[1].rpc, self.std_node, tx, with_witness=True, accepted=segwit_activated)
 
         # Now create something that looks like a P2PKH output. This won't be spendable.
         scriptPubKey = CScript([OP_0, hash160(witness_hash)])
@@ -1081,7 +1087,7 @@ class SegWitTest(BitcoinTestFramework):
             tx2.vout = [CTxOut(p2sh_tx.vout[0].nValue-1000, scriptPubKey)]
         tx2.rehash()
 
-        self.std_node.test_transaction_acceptance(tx2, with_witness=True, accepted=segwit_activated)
+        test_transaction_acceptance(self.nodes[1].rpc, self.std_node, tx2, with_witness=True, accepted=segwit_activated)
 
         # Now update self.utxo for later tests.
         tx3 = CTransaction()
@@ -1094,13 +1100,13 @@ class SegWitTest(BitcoinTestFramework):
             tx3.wit.vtxinwit.append(CTxInWitness())
             tx3.wit.vtxinwit[0].scriptWitness.stack = [witness_program]
             tx3.rehash()
-            self.test_node.test_transaction_acceptance(tx3, with_witness=True, accepted=True)
+            test_transaction_acceptance(self.nodes[0].rpc, self.test_node, tx3, with_witness=True, accepted=True)
         else:
             # tx and tx2 didn't go anywhere; just clean up the p2sh_tx output.
             tx3.vin = [CTxIn(COutPoint(p2sh_tx.sha256, 0), CScript([witness_program]))]
             tx3.vout = [CTxOut(p2sh_tx.vout[0].nValue-1000, witness_program)]
             tx3.rehash()
-            self.test_node.test_transaction_acceptance(tx3, with_witness=True, accepted=True)
+            test_transaction_acceptance(self.nodes[0].rpc, self.test_node, tx3, with_witness=True, accepted=True)
 
         self.nodes[0].generate(1)
         sync_blocks(self.nodes)
@@ -1124,7 +1130,7 @@ class SegWitTest(BitcoinTestFramework):
             tx.rehash()
             block = self.build_next_block()
             self.update_witness_block_with_transactions(block, [tx])
-            self.test_node.test_witness_block(block, accepted=True)
+            test_witness_block(self.nodes[0].rpc, self.test_node, block, accepted=True)
             self.utxo.pop(0)
             for i in range(NUM_TESTS):
                 self.utxo.append(UTXO(tx.sha256, i, split_value))
@@ -1143,8 +1149,8 @@ class SegWitTest(BitcoinTestFramework):
             tx.vin = [CTxIn(COutPoint(self.utxo[0].sha256, self.utxo[0].n), b"")]
             tx.vout = [CTxOut(self.utxo[0].nValue-1000, scriptPubKey)]
             tx.rehash()
-            self.std_node.test_transaction_acceptance(tx, with_witness=True, accepted=False)
-            self.test_node.test_transaction_acceptance(tx, with_witness=True, accepted=True)
+            test_transaction_acceptance(self.nodes[1].rpc, self.std_node, tx, with_witness=True, accepted=False)
+            test_transaction_acceptance(self.nodes[0].rpc, self.test_node, tx, with_witness=True, accepted=True)
             self.utxo.pop(0)
             temp_utxo.append(UTXO(tx.sha256, 0, tx.vout[0].nValue))
 
@@ -1163,8 +1169,8 @@ class SegWitTest(BitcoinTestFramework):
         tx2.rehash()
         # Gets accepted to test_node, because standardness of outputs isn't
         # checked with fRequireStandard
-        self.test_node.test_transaction_acceptance(tx2, with_witness=True, accepted=True)
-        self.std_node.test_transaction_acceptance(tx2, with_witness=True, accepted=False)
+        test_transaction_acceptance(self.nodes[0].rpc, self.test_node, tx2, with_witness=True, accepted=True)
+        test_transaction_acceptance(self.nodes[1].rpc, self.std_node, tx2, with_witness=True, accepted=False)
         temp_utxo.pop() # last entry in temp_utxo was the output we just spent
         temp_utxo.append(UTXO(tx2.sha256, 0, tx2.vout[0].nValue))
 
@@ -1180,7 +1186,7 @@ class SegWitTest(BitcoinTestFramework):
         tx3.rehash()
         # Spending a higher version witness output is not allowed by policy,
         # even with fRequireStandard=false.
-        self.test_node.test_transaction_acceptance(tx3, with_witness=True, accepted=False)
+        test_transaction_acceptance(self.nodes[0].rpc, self.test_node, tx3, with_witness=True, accepted=False)
         self.test_node.sync_with_ping()
         with mininode_lock:
             assert(b"reserved for soft-fork upgrades" in self.test_node.last_message["reject"].reason)
@@ -1188,7 +1194,7 @@ class SegWitTest(BitcoinTestFramework):
         # Building a block with the transaction must be valid, however.
         block = self.build_next_block()
         self.update_witness_block_with_transactions(block, [tx2, tx3])
-        self.test_node.test_witness_block(block, accepted=True)
+        test_witness_block(self.nodes[0].rpc, self.test_node, block, accepted=True)
         sync_blocks(self.nodes)
 
         # Add utxo to our list
@@ -1206,7 +1212,7 @@ class SegWitTest(BitcoinTestFramework):
         # This next line will rehash the coinbase and update the merkle
         # root, and solve.
         self.update_witness_block_with_transactions(block, [])
-        self.test_node.test_witness_block(block, accepted=True)
+        test_witness_block(self.nodes[0].rpc, self.test_node, block, accepted=True)
 
         spend_tx = CTransaction()
         spend_tx.vin = [CTxIn(COutPoint(block.vtx[0].sha256, 0), b"")]
@@ -1220,13 +1226,13 @@ class SegWitTest(BitcoinTestFramework):
         sync_blocks(self.nodes)
         block2 = self.build_next_block()
         self.update_witness_block_with_transactions(block2, [spend_tx])
-        self.test_node.test_witness_block(block2, accepted=False)
+        test_witness_block(self.nodes[0].rpc, self.test_node, block2, accepted=False)
 
         # Advancing one more block should allow the spend.
         self.nodes[0].generate(1)
         block2 = self.build_next_block()
         self.update_witness_block_with_transactions(block2, [spend_tx])
-        self.test_node.test_witness_block(block2, accepted=True)
+        test_witness_block(self.nodes[0].rpc, self.test_node, block2, accepted=True)
         sync_blocks(self.nodes)
 
 
@@ -1247,11 +1253,11 @@ class SegWitTest(BitcoinTestFramework):
         tx.vout.append(CTxOut(self.utxo[0].nValue-1000, scriptPubKey))
         tx.rehash()
 
-        self.test_node.test_transaction_acceptance(tx, with_witness=True, accepted=True)
+        test_transaction_acceptance(self.nodes[0].rpc, self.test_node, tx, with_witness=True, accepted=True)
         # Mine this transaction in preparation for following tests.
         block = self.build_next_block()
         self.update_witness_block_with_transactions(block, [tx])
-        self.test_node.test_witness_block(block, accepted=True)
+        test_witness_block(self.nodes[0].rpc, self.test_node, block, accepted=True)
         sync_blocks(self.nodes)
         self.utxo.pop(0)
 
@@ -1268,19 +1274,19 @@ class SegWitTest(BitcoinTestFramework):
                 # Too-large input value
                 sign_P2PK_witness_input(witness_program, tx, 0, hashtype, prev_utxo.nValue+1, key)
                 self.update_witness_block_with_transactions(block, [tx])
-                self.test_node.test_witness_block(block, accepted=False)
+                test_witness_block(self.nodes[0].rpc, self.test_node, block, accepted=False)
 
                 # Too-small input value
                 sign_P2PK_witness_input(witness_program, tx, 0, hashtype, prev_utxo.nValue-1, key)
                 block.vtx.pop() # remove last tx
                 self.update_witness_block_with_transactions(block, [tx])
-                self.test_node.test_witness_block(block, accepted=False)
+                test_witness_block(self.nodes[0].rpc, self.test_node, block, accepted=False)
 
                 # Now try correct value
                 sign_P2PK_witness_input(witness_program, tx, 0, hashtype, prev_utxo.nValue, key)
                 block.vtx.pop()
                 self.update_witness_block_with_transactions(block, [tx])
-                self.test_node.test_witness_block(block, accepted=True)
+                test_witness_block(self.nodes[0].rpc, self.test_node, block, accepted=True)
 
                 prev_utxo = UTXO(tx.sha256, 0, tx.vout[0].nValue)
 
@@ -1304,7 +1310,7 @@ class SegWitTest(BitcoinTestFramework):
 
         block = self.build_next_block()
         self.update_witness_block_with_transactions(block, [tx])
-        self.test_node.test_witness_block(block, accepted=True)
+        test_witness_block(self.nodes[0].rpc, self.test_node, block, accepted=True)
 
         block = self.build_next_block()
         used_sighash_single_out_of_bounds = False
@@ -1346,7 +1352,7 @@ class SegWitTest(BitcoinTestFramework):
             # Test the block periodically, if we're close to maxblocksize
             if (get_virtual_size(block) > MAX_BLOCK_BASE_SIZE - 1000):
                 self.update_witness_block_with_transactions(block, [])
-                self.test_node.test_witness_block(block, accepted=True)
+                test_witness_block(self.nodes[0].rpc, self.test_node, block, accepted=True)
                 block = self.build_next_block()
 
         if (not used_sighash_single_out_of_bounds):
@@ -1354,7 +1360,7 @@ class SegWitTest(BitcoinTestFramework):
         # Test the transactions we've added to the block
         if (len(block.vtx) > 1):
             self.update_witness_block_with_transactions(block, [])
-            self.test_node.test_witness_block(block, accepted=True)
+            test_witness_block(self.nodes[0].rpc, self.test_node, block, accepted=True)
 
         # Now test witness version 0 P2PKH transactions
         pubkeyhash = hash160(pubkey)
@@ -1376,7 +1382,7 @@ class SegWitTest(BitcoinTestFramework):
         tx2.vin[0].scriptSig = CScript([signature, pubkey])
         block = self.build_next_block()
         self.update_witness_block_with_transactions(block, [tx, tx2])
-        self.test_node.test_witness_block(block, accepted=False)
+        test_witness_block(self.nodes[0].rpc, self.test_node, block, accepted=False)
 
         # Move the signature to the witness.
         block.vtx.pop()
@@ -1386,26 +1392,28 @@ class SegWitTest(BitcoinTestFramework):
         tx2.rehash()
 
         self.update_witness_block_with_transactions(block, [tx2])
-        self.test_node.test_witness_block(block, accepted=True)
+        test_witness_block(self.nodes[0].rpc, self.test_node, block, accepted=True)
 
         temp_utxos.pop(0)
 
-        # Update self.utxos for later tests. Just spend everything in
-        # temp_utxos to a corresponding entry in self.utxos
+        # Update self.utxos for later tests by creating two outputs
+        # that consolidate all the coins in temp_utxos.
+        output_value = sum(i.nValue for i in temp_utxos) // 2
+
         tx = CTransaction()
         index = 0
+        # Just spend to our usual anyone-can-spend output
+        tx.vout = [CTxOut(output_value, CScript([OP_TRUE]))] * 2
         for i in temp_utxos:
-            # Just spend to our usual anyone-can-spend output
-            # Use SIGHASH_SINGLE|SIGHASH_ANYONECANPAY so we can build up
+            # Use SIGHASH_ALL|SIGHASH_ANYONECANPAY so we can build up
             # the signatures as we go.
             tx.vin.append(CTxIn(COutPoint(i.sha256, i.n), b""))
-            tx.vout.append(CTxOut(i.nValue, CScript([OP_TRUE])))
             tx.wit.vtxinwit.append(CTxInWitness())
-            sign_P2PK_witness_input(witness_program, tx, index, SIGHASH_SINGLE|SIGHASH_ANYONECANPAY, i.nValue, key)
+            sign_P2PK_witness_input(witness_program, tx, index, SIGHASH_ALL|SIGHASH_ANYONECANPAY, i.nValue, key)
             index += 1
         block = self.build_next_block()
         self.update_witness_block_with_transactions(block, [tx])
-        self.test_node.test_witness_block(block, accepted=True)
+        test_witness_block(self.nodes[0].rpc, self.test_node, block, accepted=True)
 
         for i in range(len(tx.vout)):
             self.utxo.append(UTXO(tx.sha256, i, tx.vout[i].nValue))
@@ -1432,10 +1440,10 @@ class SegWitTest(BitcoinTestFramework):
         tx.rehash()
 
         # Verify mempool acceptance and block validity
-        self.test_node.test_transaction_acceptance(tx, with_witness=False, accepted=True)
+        test_transaction_acceptance(self.nodes[0].rpc, self.test_node, tx, with_witness=False, accepted=True)
         block = self.build_next_block()
         self.update_witness_block_with_transactions(block, [tx])
-        self.test_node.test_witness_block(block, accepted=True, with_witness=segwit_activated)
+        test_witness_block(self.nodes[0].rpc, self.test_node, block, accepted=True, with_witness=segwit_activated)
         sync_blocks(self.nodes)
 
         # Now test attempts to spend the output.
@@ -1449,12 +1457,12 @@ class SegWitTest(BitcoinTestFramework):
         # will require a witness to spend a witness program regardless of
         # segwit activation.  Note that older bitcoind's that are not
         # segwit-aware would also reject this for failing CLEANSTACK.
-        self.test_node.test_transaction_acceptance(spend_tx, with_witness=False, accepted=False)
+        test_transaction_acceptance(self.nodes[0].rpc, self.test_node, spend_tx, with_witness=False, accepted=False)
 
         # Try to put the witness script in the scriptSig, should also fail.
         spend_tx.vin[0].scriptSig = CScript([p2wsh_pubkey, b'a'])
         spend_tx.rehash()
-        self.test_node.test_transaction_acceptance(spend_tx, with_witness=False, accepted=False)
+        test_transaction_acceptance(self.nodes[0].rpc, self.test_node, spend_tx, with_witness=False, accepted=False)
 
         # Now put the witness script in the witness, should succeed after
         # segwit activates.
@@ -1464,7 +1472,7 @@ class SegWitTest(BitcoinTestFramework):
         spend_tx.wit.vtxinwit[0].scriptWitness.stack = [ b'a', witness_program ]
 
         # Verify mempool acceptance
-        self.test_node.test_transaction_acceptance(spend_tx, with_witness=True, accepted=segwit_activated)
+        test_transaction_acceptance(self.nodes[0].rpc, self.test_node, spend_tx, with_witness=True, accepted=segwit_activated)
         block = self.build_next_block()
         self.update_witness_block_with_transactions(block, [spend_tx])
 
@@ -1472,9 +1480,9 @@ class SegWitTest(BitcoinTestFramework):
         # should be valid.  If we're after activation, then sending this with
         # witnesses should be valid.
         if segwit_activated:
-            self.test_node.test_witness_block(block, accepted=True)
+            test_witness_block(self.nodes[0].rpc, self.test_node, block, accepted=True)
         else:
-            self.test_node.test_witness_block(block, accepted=True, with_witness=False)
+            test_witness_block(self.nodes[0].rpc, self.test_node, block, accepted=True, with_witness=False)
 
         # Update self.utxo
         self.utxo.pop(0)
@@ -1558,7 +1566,7 @@ class SegWitTest(BitcoinTestFramework):
 
         block_1 = self.build_next_block()
         self.update_witness_block_with_transactions(block_1, [tx])
-        self.test_node.test_witness_block(block_1, accepted=True)
+        test_witness_block(self.nodes[0].rpc, self.test_node, block_1, accepted=True)
 
         tx2 = CTransaction()
         # If we try to spend the first n-1 outputs from tx, that should be
@@ -1575,7 +1583,7 @@ class SegWitTest(BitcoinTestFramework):
 
         block_2 = self.build_next_block()
         self.update_witness_block_with_transactions(block_2, [tx2])
-        self.test_node.test_witness_block(block_2, accepted=False)
+        test_witness_block(self.nodes[0].rpc, self.test_node, block_2, accepted=False)
 
         # Try dropping the last input in tx2, and add an output that has
         # too many sigops (contributing to legacy sigop count).
@@ -1588,14 +1596,14 @@ class SegWitTest(BitcoinTestFramework):
         tx2.rehash()
         block_3 = self.build_next_block()
         self.update_witness_block_with_transactions(block_3, [tx2])
-        self.test_node.test_witness_block(block_3, accepted=False)
+        test_witness_block(self.nodes[0].rpc, self.test_node, block_3, accepted=False)
 
         # If we drop the last checksig in this output, the tx should succeed.
         block_4 = self.build_next_block()
         tx2.vout[-1].scriptPubKey = CScript([OP_CHECKSIG]*(checksig_count-1))
         tx2.rehash()
         self.update_witness_block_with_transactions(block_4, [tx2])
-        self.test_node.test_witness_block(block_4, accepted=True)
+        test_witness_block(self.nodes[0].rpc, self.test_node, block_4, accepted=True)
 
         # Reset the tip back down for the next test
         sync_blocks(self.nodes)
@@ -1611,7 +1619,7 @@ class SegWitTest(BitcoinTestFramework):
         tx2.wit.vtxinwit[-1].scriptWitness.stack = [ witness_program_justright ]
         tx2.rehash()
         self.update_witness_block_with_transactions(block_5, [tx2])
-        self.test_node.test_witness_block(block_5, accepted=True)
+        test_witness_block(self.nodes[0].rpc, self.test_node, block_5, accepted=True)
 
         # TODO: test p2sh sigop counting
 
@@ -1689,7 +1697,7 @@ class SegWitTest(BitcoinTestFramework):
         # Confirm it in a block.
         block = self.build_next_block()
         self.update_witness_block_with_transactions(block, [tx])
-        self.test_node.test_witness_block(block, accepted=True)
+        test_witness_block(self.nodes[0].rpc, self.test_node, block, accepted=True)
 
         # Now try to spend it. Send it to a P2WSH output, which we'll
         # use in the next test.
@@ -1708,11 +1716,11 @@ class SegWitTest(BitcoinTestFramework):
         tx2.rehash()
 
         # Should fail policy test.
-        self.test_node.test_transaction_acceptance(tx2, True, False, b'non-mandatory-script-verify-flag (Using non-compressed keys in segwit)')
+        test_transaction_acceptance(self.nodes[0].rpc, self.test_node, tx2, True, False, b'non-mandatory-script-verify-flag (Using non-compressed keys in segwit)')
         # But passes consensus.
         block = self.build_next_block()
         self.update_witness_block_with_transactions(block, [tx2])
-        self.test_node.test_witness_block(block, accepted=True)
+        test_witness_block(self.nodes[0].rpc, self.test_node, block, accepted=True)
 
         # Test 2: P2WSH
         # Try to spend the P2WSH output created in last test.
@@ -1728,11 +1736,11 @@ class SegWitTest(BitcoinTestFramework):
         sign_P2PK_witness_input(witness_program, tx3, 0, SIGHASH_ALL, tx2.vout[0].nValue, key)
 
         # Should fail policy test.
-        self.test_node.test_transaction_acceptance(tx3, True, False, b'non-mandatory-script-verify-flag (Using non-compressed keys in segwit)')
+        test_transaction_acceptance(self.nodes[0].rpc, self.test_node, tx3, True, False, b'non-mandatory-script-verify-flag (Using non-compressed keys in segwit)')
         # But passes consensus.
         block = self.build_next_block()
         self.update_witness_block_with_transactions(block, [tx3])
-        self.test_node.test_witness_block(block, accepted=True)
+        test_witness_block(self.nodes[0].rpc, self.test_node, block, accepted=True)
 
         # Test 3: P2SH(P2WSH)
         # Try to spend the P2SH output created in the last test.
@@ -1745,10 +1753,10 @@ class SegWitTest(BitcoinTestFramework):
         sign_P2PK_witness_input(witness_program, tx4, 0, SIGHASH_ALL, tx3.vout[0].nValue, key)
 
         # Should fail policy test.
-        self.test_node.test_transaction_acceptance(tx4, True, False, b'non-mandatory-script-verify-flag (Using non-compressed keys in segwit)')
+        test_transaction_acceptance(self.nodes[0].rpc, self.test_node, tx4, True, False, b'non-mandatory-script-verify-flag (Using non-compressed keys in segwit)')
         block = self.build_next_block()
         self.update_witness_block_with_transactions(block, [tx4])
-        self.test_node.test_witness_block(block, accepted=True)
+        test_witness_block(self.nodes[0].rpc, self.test_node, block, accepted=True)
 
         # Test 4: Uncompressed pubkeys should still be valid in non-segwit
         # transactions.
@@ -1760,10 +1768,10 @@ class SegWitTest(BitcoinTestFramework):
         tx5.vin[0].scriptSig = CScript([signature, pubkey])
         tx5.rehash()
         # Should pass policy and consensus.
-        self.test_node.test_transaction_acceptance(tx5, True, True)
+        test_transaction_acceptance(self.nodes[0].rpc, self.test_node, tx5, True, True)
         block = self.build_next_block()
         self.update_witness_block_with_transactions(block, [tx5])
-        self.test_node.test_witness_block(block, accepted=True)
+        test_witness_block(self.nodes[0].rpc, self.test_node, block, accepted=True)
         self.utxo.append(UTXO(tx5.sha256, 0, tx5.vout[0].nValue))
 
     def test_non_standard_witness(self):
@@ -1793,7 +1801,7 @@ class SegWitTest(BitcoinTestFramework):
             tx.vout.append(CTxOut(outputvalue, CScript([OP_HASH160, p2sh, OP_EQUAL])))
         tx.rehash()
         txid = tx.sha256
-        self.test_node.test_transaction_acceptance(tx, with_witness=False, accepted=True)
+        test_transaction_acceptance(self.nodes[0].rpc, self.test_node, tx, with_witness=False, accepted=True)
 
         self.nodes[0].generate(1)
         sync_blocks(self.nodes)
@@ -1818,45 +1826,45 @@ class SegWitTest(BitcoinTestFramework):
         # Testing native P2WSH
         # Witness stack size, excluding witnessScript, over 100 is non-standard
         p2wsh_txs[0].wit.vtxinwit[0].scriptWitness.stack = [pad] * 101 + [scripts[0]]
-        self.std_node.test_transaction_acceptance(p2wsh_txs[0], True, False, b'bad-witness-nonstandard')
+        test_transaction_acceptance(self.nodes[1].rpc, self.std_node, p2wsh_txs[0], True, False, b'bad-witness-nonstandard')
         # Non-standard nodes should accept
-        self.test_node.test_transaction_acceptance(p2wsh_txs[0], True, True)
+        test_transaction_acceptance(self.nodes[0].rpc, self.test_node, p2wsh_txs[0], True, True)
 
         # Stack element size over 80 bytes is non-standard
         p2wsh_txs[1].wit.vtxinwit[0].scriptWitness.stack = [pad * 81] * 100 + [scripts[1]]
-        self.std_node.test_transaction_acceptance(p2wsh_txs[1], True, False, b'bad-witness-nonstandard')
+        test_transaction_acceptance(self.nodes[1].rpc, self.std_node, p2wsh_txs[1], True, False, b'bad-witness-nonstandard')
         # Non-standard nodes should accept
-        self.test_node.test_transaction_acceptance(p2wsh_txs[1], True, True)
+        test_transaction_acceptance(self.nodes[0].rpc, self.test_node, p2wsh_txs[1], True, True)
         # Standard nodes should accept if element size is not over 80 bytes
         p2wsh_txs[1].wit.vtxinwit[0].scriptWitness.stack = [pad * 80] * 100 + [scripts[1]]
-        self.std_node.test_transaction_acceptance(p2wsh_txs[1], True, True)
+        test_transaction_acceptance(self.nodes[1].rpc, self.std_node, p2wsh_txs[1], True, True)
 
         # witnessScript size at 3600 bytes is standard
         p2wsh_txs[2].wit.vtxinwit[0].scriptWitness.stack = [pad, pad, scripts[2]]
-        self.test_node.test_transaction_acceptance(p2wsh_txs[2], True, True)
-        self.std_node.test_transaction_acceptance(p2wsh_txs[2], True, True)
+        test_transaction_acceptance(self.nodes[0].rpc, self.test_node, p2wsh_txs[2], True, True)
+        test_transaction_acceptance(self.nodes[1].rpc, self.std_node, p2wsh_txs[2], True, True)
 
         # witnessScript size at 3601 bytes is non-standard
         p2wsh_txs[3].wit.vtxinwit[0].scriptWitness.stack = [pad, pad, pad, scripts[3]]
-        self.std_node.test_transaction_acceptance(p2wsh_txs[3], True, False, b'bad-witness-nonstandard')
+        test_transaction_acceptance(self.nodes[1].rpc, self.std_node, p2wsh_txs[3], True, False, b'bad-witness-nonstandard')
         # Non-standard nodes should accept
-        self.test_node.test_transaction_acceptance(p2wsh_txs[3], True, True)
+        test_transaction_acceptance(self.nodes[0].rpc, self.test_node, p2wsh_txs[3], True, True)
 
         # Repeating the same tests with P2SH-P2WSH
         p2sh_txs[0].wit.vtxinwit[0].scriptWitness.stack = [pad] * 101 + [scripts[0]]
-        self.std_node.test_transaction_acceptance(p2sh_txs[0], True, False, b'bad-witness-nonstandard')
-        self.test_node.test_transaction_acceptance(p2sh_txs[0], True, True)
+        test_transaction_acceptance(self.nodes[1].rpc, self.std_node, p2sh_txs[0], True, False, b'bad-witness-nonstandard')
+        test_transaction_acceptance(self.nodes[0].rpc, self.test_node, p2sh_txs[0], True, True)
         p2sh_txs[1].wit.vtxinwit[0].scriptWitness.stack = [pad * 81] * 100 + [scripts[1]]
-        self.std_node.test_transaction_acceptance(p2sh_txs[1], True, False, b'bad-witness-nonstandard')
-        self.test_node.test_transaction_acceptance(p2sh_txs[1], True, True)
+        test_transaction_acceptance(self.nodes[1].rpc, self.std_node, p2sh_txs[1], True, False, b'bad-witness-nonstandard')
+        test_transaction_acceptance(self.nodes[0].rpc, self.test_node, p2sh_txs[1], True, True)
         p2sh_txs[1].wit.vtxinwit[0].scriptWitness.stack = [pad * 80] * 100 + [scripts[1]]
-        self.std_node.test_transaction_acceptance(p2sh_txs[1], True, True)
+        test_transaction_acceptance(self.nodes[1].rpc, self.std_node, p2sh_txs[1], True, True)
         p2sh_txs[2].wit.vtxinwit[0].scriptWitness.stack = [pad, pad, scripts[2]]
-        self.test_node.test_transaction_acceptance(p2sh_txs[2], True, True)
-        self.std_node.test_transaction_acceptance(p2sh_txs[2], True, True)
+        test_transaction_acceptance(self.nodes[0].rpc, self.test_node, p2sh_txs[2], True, True)
+        test_transaction_acceptance(self.nodes[1].rpc, self.std_node, p2sh_txs[2], True, True)
         p2sh_txs[3].wit.vtxinwit[0].scriptWitness.stack = [pad, pad, pad, scripts[3]]
-        self.std_node.test_transaction_acceptance(p2sh_txs[3], True, False, b'bad-witness-nonstandard')
-        self.test_node.test_transaction_acceptance(p2sh_txs[3], True, True)
+        test_transaction_acceptance(self.nodes[1].rpc, self.std_node, p2sh_txs[3], True, False, b'bad-witness-nonstandard')
+        test_transaction_acceptance(self.nodes[0].rpc, self.test_node, p2sh_txs[3], True, True)
 
         self.nodes[0].generate(1)  # Mine and clean up the mempool of non-standard node
         # Valid but non-standard transactions in a block should be accepted by standard node
@@ -1870,13 +1878,13 @@ class SegWitTest(BitcoinTestFramework):
     def run_test(self):
         # Setup the p2p connections and start up the network thread.
         # self.test_node sets NODE_WITNESS|NODE_NETWORK
-        self.test_node = self.nodes[0].add_p2p_connection(TestNode(self.nodes[0].rpc), services=NODE_NETWORK|NODE_WITNESS)
+        self.test_node = self.nodes[0].add_p2p_connection(TestNode(), services=NODE_NETWORK|NODE_WITNESS)
         # self.old_node sets only NODE_NETWORK
-        self.old_node = self.nodes[0].add_p2p_connection(TestNode(self.nodes[0].rpc), services=NODE_NETWORK)
+        self.old_node = self.nodes[0].add_p2p_connection(TestNode(), services=NODE_NETWORK)
         # self.std_node is for testing node1 (fRequireStandard=true)
-        self.std_node = self.nodes[1].add_p2p_connection(TestNode(self.nodes[1].rpc), services=NODE_NETWORK|NODE_WITNESS)
+        self.std_node = self.nodes[1].add_p2p_connection(TestNode(), services=NODE_NETWORK|NODE_WITNESS)
 
-        NetworkThread().start() # Start up network handling in another thread
+        network_thread_start()
 
         # Keep a place to store utxo's that can be used in later tests
         self.utxo = []
diff --git a/test/functional/sendheaders.py b/test/functional/p2p_sendheaders.py
index 55bb80ea00..8869aeaaea 100755
--- a/test/functional/sendheaders.py
+++ b/test/functional/p2p_sendheaders.py
@@ -1,14 +1,16 @@
 #!/usr/bin/env python3
-# Copyright (c) 2014-2016 The Bitcoin Core developers
+# Copyright (c) 2014-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test behavior of headers messages to announce blocks.
 
-Setup: 
+Setup:
 
-- Two nodes, two p2p connections to node0. One p2p connection should only ever
-  receive inv's (omitted from testing description below, this is our control).
-  Second node is used for creating reorgs.
+- Two nodes:
+    - node0 is the node-under-test. We create two p2p connections to it. The
+      first p2p connection is a control and should only ever receive inv's. The
+      second p2p connection tests the headers sending logic.
+    - node1 is used to create reorgs.
 
 test_null_locators
 ==================
@@ -83,146 +85,160 @@ d. Announce 49 headers that don't connect.
 e. Announce one more that doesn't connect.
    Expect: disconnect.
 """
-
-from test_framework.mininode import *
-from test_framework.test_framework import BitcoinTestFramework
-from test_framework.util import *
 from test_framework.blocktools import create_block, create_coinbase
+from test_framework.mininode import (
+    CBlockHeader,
+    CInv,
+    NODE_WITNESS,
+    network_thread_start,
+    P2PInterface,
+    mininode_lock,
+    msg_block,
+    msg_getblocks,
+    msg_getdata,
+    msg_getheaders,
+    msg_headers,
+    msg_inv,
+    msg_sendheaders,
+)
+from test_framework.test_framework import BitcoinTestFramework
+from test_framework.util import (
+    assert_equal,
+    sync_blocks,
+    wait_until,
+)
 
+DIRECT_FETCH_RESPONSE_TIME = 0.05
 
-direct_fetch_response_time = 0.05
-
-class TestNode(NodeConnCB):
+class BaseNode(P2PInterface):
     def __init__(self):
         super().__init__()
+
         self.block_announced = False
         self.last_blockhash_announced = None
 
-    def clear_last_announcement(self):
-        with mininode_lock:
-            self.block_announced = False
-            self.last_message.pop("inv", None)
-            self.last_message.pop("headers", None)
-
-    # Request data for a list of block hashes
-    def get_data(self, block_hashes):
+    def send_get_data(self, block_hashes):
+        """Request data for a list of block hashes."""
         msg = msg_getdata()
         for x in block_hashes:
             msg.inv.append(CInv(2, x))
-        self.connection.send_message(msg)
+        self.send_message(msg)
 
-    def get_headers(self, locator, hashstop):
+    def send_get_headers(self, locator, hashstop):
         msg = msg_getheaders()
         msg.locator.vHave = locator
         msg.hashstop = hashstop
-        self.connection.send_message(msg)
+        self.send_message(msg)
 
     def send_block_inv(self, blockhash):
         msg = msg_inv()
         msg.inv = [CInv(2, blockhash)]
-        self.connection.send_message(msg)
+        self.send_message(msg)
+
+    def send_header_for_blocks(self, new_blocks):
+        headers_message = msg_headers()
+        headers_message.headers = [CBlockHeader(b) for b in new_blocks]
+        self.send_message(headers_message)
 
-    def on_inv(self, conn, message):
+    def send_getblocks(self, locator):
+        getblocks_message = msg_getblocks()
+        getblocks_message.locator.vHave = locator
+        self.send_message(getblocks_message)
+
+    def wait_for_getdata(self, hash_list, timeout=60):
+        if hash_list == []:
+            return
+
+        test_function = lambda: "getdata" in self.last_message and [x.hash for x in self.last_message["getdata"].inv] == hash_list
+        wait_until(test_function, timeout=timeout, lock=mininode_lock)
+
+    def wait_for_block_announcement(self, block_hash, timeout=60):
+        test_function = lambda: self.last_blockhash_announced == block_hash
+        wait_until(test_function, timeout=timeout, lock=mininode_lock)
+
+    def on_inv(self, message):
         self.block_announced = True
         self.last_blockhash_announced = message.inv[-1].hash
 
-    def on_headers(self, conn, message):
+    def on_headers(self, message):
         if len(message.headers):
             self.block_announced = True
             message.headers[-1].calc_sha256()
             self.last_blockhash_announced = message.headers[-1].sha256
 
-    # Test whether the last announcement we received had the
-    # right header or the right inv
-    # inv and headers should be lists of block hashes
+    def clear_last_announcement(self):
+        with mininode_lock:
+            self.block_announced = False
+            self.last_message.pop("inv", None)
+            self.last_message.pop("headers", None)
+
     def check_last_announcement(self, headers=None, inv=None):
-        expect_headers = headers if headers != None else []
-        expect_inv = inv if inv != None else []
+        """Test whether the last announcement received had the right header or the right inv.
+
+        inv and headers should be lists of block hashes."""
+
         test_function = lambda: self.block_announced
         wait_until(test_function, timeout=60, lock=mininode_lock)
+
         with mininode_lock:
             self.block_announced = False
 
-            success = True
             compare_inv = []
             if "inv" in self.last_message:
                 compare_inv = [x.hash for x in self.last_message["inv"].inv]
-            if compare_inv != expect_inv:
-                success = False
+            if inv is not None:
+                assert_equal(compare_inv, inv)
 
-            hash_headers = []
+            compare_headers = []
             if "headers" in self.last_message:
-                # treat headers as a list of block hashes
-                hash_headers = [ x.sha256 for x in self.last_message["headers"].headers ]
-            if hash_headers != expect_headers:
-                success = False
+                compare_headers = [x.sha256 for x in self.last_message["headers"].headers]
+            if headers is not None:
+                assert_equal(compare_headers, headers)
 
             self.last_message.pop("inv", None)
             self.last_message.pop("headers", None)
-        return success
-
-    def wait_for_getdata(self, hash_list, timeout=60):
-        if hash_list == []:
-            return
-
-        test_function = lambda: "getdata" in self.last_message and [x.hash for x in self.last_message["getdata"].inv] == hash_list
-        wait_until(test_function, timeout=timeout, lock=mininode_lock)
-        return
-
-    def wait_for_block_announcement(self, block_hash, timeout=60):
-        test_function = lambda: self.last_blockhash_announced == block_hash
-        wait_until(test_function, timeout=timeout, lock=mininode_lock)
-        return
-
-    def send_header_for_blocks(self, new_blocks):
-        headers_message = msg_headers()
-        headers_message.headers = [ CBlockHeader(b) for b in new_blocks ]
-        self.send_message(headers_message)
-
-    def send_getblocks(self, locator):
-        getblocks_message = msg_getblocks()
-        getblocks_message.locator.vHave = locator
-        self.send_message(getblocks_message)
 
 class SendHeadersTest(BitcoinTestFramework):
     def set_test_params(self):
         self.setup_clean_chain = True
         self.num_nodes = 2
 
-    # mine count blocks and return the new tip
     def mine_blocks(self, count):
+        """Mine count blocks and return the new tip."""
+
         # Clear out last block announcement from each p2p listener
         [x.clear_last_announcement() for x in self.nodes[0].p2ps]
         self.nodes[0].generate(count)
         return int(self.nodes[0].getbestblockhash(), 16)
 
-    # mine a reorg that invalidates length blocks (replacing them with
-    # length+1 blocks).
-    # Note: we clear the state of our p2p connections after the
-    # to-be-reorged-out blocks are mined, so that we don't break later tests.
-    # return the list of block hashes newly mined
     def mine_reorg(self, length):
-        self.nodes[0].generate(length) # make sure all invalidated blocks are node0's
+        """Mine a reorg that invalidates length blocks (replacing them with # length+1 blocks).
+
+        Note: we clear the state of our p2p connections after the
+        to-be-reorged-out blocks are mined, so that we don't break later tests.
+        return the list of block hashes newly mined."""
+
+        self.nodes[0].generate(length)  # make sure all invalidated blocks are node0's
         sync_blocks(self.nodes, wait=0.1)
         for x in self.nodes[0].p2ps:
             x.wait_for_block_announcement(int(self.nodes[0].getbestblockhash(), 16))
             x.clear_last_announcement()
 
         tip_height = self.nodes[1].getblockcount()
-        hash_to_invalidate = self.nodes[1].getblockhash(tip_height-(length-1))
+        hash_to_invalidate = self.nodes[1].getblockhash(tip_height - (length - 1))
         self.nodes[1].invalidateblock(hash_to_invalidate)
-        all_hashes = self.nodes[1].generate(length+1) # Must be longer than the orig chain
+        all_hashes = self.nodes[1].generate(length + 1)  # Must be longer than the orig chain
         sync_blocks(self.nodes, wait=0.1)
         return [int(x, 16) for x in all_hashes]
 
     def run_test(self):
         # Setup the p2p connections and start up the network thread.
-        inv_node = self.nodes[0].add_p2p_connection(TestNode())
-        # Set nServices to 0 for test_node, so no block download will occur outside of
-        # direct fetching
-        test_node = self.nodes[0].add_p2p_connection(TestNode(), services=NODE_WITNESS)
+        inv_node = self.nodes[0].add_p2p_connection(BaseNode())
+        # Make sure NODE_NETWORK is not set for test_node, so no block download
+        # will occur outside of direct fetching
+        test_node = self.nodes[0].add_p2p_connection(BaseNode(), services=NODE_WITNESS)
 
-        NetworkThread().start() # Start up network handling in another thread
+        network_thread_start()
 
         # Test logic begins here
         inv_node.wait_for_verack()
@@ -232,27 +248,32 @@ class SendHeadersTest(BitcoinTestFramework):
         inv_node.sync_with_ping()
         test_node.sync_with_ping()
 
-        self.test_null_locators(test_node)
+        self.test_null_locators(test_node, inv_node)
         self.test_nonnull_locators(test_node, inv_node)
 
-    def test_null_locators(self, test_node):
+    def test_null_locators(self, test_node, inv_node):
         tip = self.nodes[0].getblockheader(self.nodes[0].generate(1)[0])
         tip_hash = int(tip["hash"], 16)
 
+        inv_node.check_last_announcement(inv=[tip_hash], headers=[])
+        test_node.check_last_announcement(inv=[tip_hash], headers=[])
+
         self.log.info("Verify getheaders with null locator and valid hashstop returns headers.")
         test_node.clear_last_announcement()
-        test_node.get_headers(locator=[], hashstop=tip_hash)
-        assert_equal(test_node.check_last_announcement(headers=[tip_hash]), True)
+        test_node.send_get_headers(locator=[], hashstop=tip_hash)
+        test_node.check_last_announcement(headers=[tip_hash])
 
         self.log.info("Verify getheaders with null locator and invalid hashstop does not return headers.")
         block = create_block(int(tip["hash"], 16), create_coinbase(tip["height"] + 1), tip["mediantime"] + 1)
         block.solve()
         test_node.send_header_for_blocks([block])
         test_node.clear_last_announcement()
-        test_node.get_headers(locator=[], hashstop=int(block.hash, 16))
+        test_node.send_get_headers(locator=[], hashstop=int(block.hash, 16))
         test_node.sync_with_ping()
         assert_equal(test_node.block_announced, False)
+        inv_node.clear_last_announcement()
         test_node.send_message(msg_block(block))
+        inv_node.check_last_announcement(inv=[int(block.hash, 16)], headers=[])
 
     def test_nonnull_locators(self, test_node, inv_node):
         tip = int(self.nodes[0].getbestblockhash(), 16)
@@ -263,30 +284,30 @@ class SendHeadersTest(BitcoinTestFramework):
         for i in range(4):
             old_tip = tip
             tip = self.mine_blocks(1)
-            assert_equal(inv_node.check_last_announcement(inv=[tip]), True)
-            assert_equal(test_node.check_last_announcement(inv=[tip]), True)
+            inv_node.check_last_announcement(inv=[tip], headers=[])
+            test_node.check_last_announcement(inv=[tip], headers=[])
             # Try a few different responses; none should affect next announcement
             if i == 0:
                 # first request the block
-                test_node.get_data([tip])
+                test_node.send_get_data([tip])
                 test_node.wait_for_block(tip)
             elif i == 1:
                 # next try requesting header and block
-                test_node.get_headers(locator=[old_tip], hashstop=tip)
-                test_node.get_data([tip])
+                test_node.send_get_headers(locator=[old_tip], hashstop=tip)
+                test_node.send_get_data([tip])
                 test_node.wait_for_block(tip)
-                test_node.clear_last_announcement() # since we requested headers...
+                test_node.clear_last_announcement()  # since we requested headers...
             elif i == 2:
                 # this time announce own block via headers
                 height = self.nodes[0].getblockcount()
                 last_time = self.nodes[0].getblock(self.nodes[0].getbestblockhash())['time']
                 block_time = last_time + 1
-                new_block = create_block(tip, create_coinbase(height+1), block_time)
+                new_block = create_block(tip, create_coinbase(height + 1), block_time)
                 new_block.solve()
                 test_node.send_header_for_blocks([new_block])
                 test_node.wait_for_getdata([new_block.sha256])
                 test_node.send_message(msg_block(new_block))
-                test_node.sync_with_ping() # make sure this block is processed
+                test_node.sync_with_ping()  # make sure this block is processed
                 inv_node.clear_last_announcement()
                 test_node.clear_last_announcement()
 
@@ -297,15 +318,15 @@ class SendHeadersTest(BitcoinTestFramework):
         # commence and keep working.
         test_node.send_message(msg_sendheaders())
         prev_tip = int(self.nodes[0].getbestblockhash(), 16)
-        test_node.get_headers(locator=[prev_tip], hashstop=0)
+        test_node.send_get_headers(locator=[prev_tip], hashstop=0)
         test_node.sync_with_ping()
 
         # Now that we've synced headers, headers announcements should work
         tip = self.mine_blocks(1)
-        assert_equal(inv_node.check_last_announcement(inv=[tip]), True)
-        assert_equal(test_node.check_last_announcement(headers=[tip]), True)
+        inv_node.check_last_announcement(inv=[tip], headers=[])
+        test_node.check_last_announcement(headers=[tip])
 
-        height = self.nodes[0].getblockcount()+1
+        height = self.nodes[0].getblockcount() + 1
         block_time += 10  # Advance far enough ahead
         for i in range(10):
             # Mine i blocks, and alternate announcing either via
@@ -314,7 +335,7 @@ class SendHeadersTest(BitcoinTestFramework):
             # with block header, even though the blocks are never requested
             for j in range(2):
                 blocks = []
-                for b in range(i+1):
+                for b in range(i + 1):
                     blocks.append(create_block(tip, create_coinbase(height), block_time))
                     blocks[-1].solve()
                     tip = blocks[-1].sha256
@@ -328,7 +349,7 @@ class SendHeadersTest(BitcoinTestFramework):
                     test_node.send_header_for_blocks(blocks)
                     # Test that duplicate inv's won't result in duplicate
                     # getdata requests, or duplicate headers announcements
-                    [ inv_node.send_block_inv(x.sha256) for x in blocks ]
+                    [inv_node.send_block_inv(x.sha256) for x in blocks]
                     test_node.wait_for_getdata([x.sha256 for x in blocks])
                     inv_node.sync_with_ping()
                 else:
@@ -339,7 +360,7 @@ class SendHeadersTest(BitcoinTestFramework):
                     # getdata requests (the check is further down)
                     inv_node.send_header_for_blocks(blocks)
                     inv_node.sync_with_ping()
-                [ test_node.send_message(msg_block(x)) for x in blocks ]
+                [test_node.send_message(msg_block(x)) for x in blocks]
                 test_node.sync_with_ping()
                 inv_node.sync_with_ping()
                 # This block should not be announced to the inv node (since it also
@@ -347,8 +368,8 @@ class SendHeadersTest(BitcoinTestFramework):
                 assert "inv" not in inv_node.last_message
                 assert "headers" not in inv_node.last_message
                 tip = self.mine_blocks(1)
-                assert_equal(inv_node.check_last_announcement(inv=[tip]), True)
-                assert_equal(test_node.check_last_announcement(headers=[tip]), True)
+                inv_node.check_last_announcement(inv=[tip], headers=[])
+                test_node.check_last_announcement(headers=[tip])
                 height += 1
                 block_time += 1
 
@@ -362,16 +383,16 @@ class SendHeadersTest(BitcoinTestFramework):
             # First try mining a reorg that can propagate with header announcement
             new_block_hashes = self.mine_reorg(length=7)
             tip = new_block_hashes[-1]
-            assert_equal(inv_node.check_last_announcement(inv=[tip]), True)
-            assert_equal(test_node.check_last_announcement(headers=new_block_hashes), True)
+            inv_node.check_last_announcement(inv=[tip], headers=[])
+            test_node.check_last_announcement(headers=new_block_hashes)
 
-            block_time += 8 
+            block_time += 8
 
             # Mine a too-large reorg, which should be announced with a single inv
             new_block_hashes = self.mine_reorg(length=8)
             tip = new_block_hashes[-1]
-            assert_equal(inv_node.check_last_announcement(inv=[tip]), True)
-            assert_equal(test_node.check_last_announcement(inv=[tip]), True)
+            inv_node.check_last_announcement(inv=[tip], headers=[])
+            test_node.check_last_announcement(inv=[tip], headers=[])
 
             block_time += 9
 
@@ -379,42 +400,42 @@ class SendHeadersTest(BitcoinTestFramework):
             fork_point = int(fork_point, 16)
 
             # Use getblocks/getdata
-            test_node.send_getblocks(locator = [fork_point])
-            assert_equal(test_node.check_last_announcement(inv=new_block_hashes), True)
-            test_node.get_data(new_block_hashes)
+            test_node.send_getblocks(locator=[fork_point])
+            test_node.check_last_announcement(inv=new_block_hashes, headers=[])
+            test_node.send_get_data(new_block_hashes)
             test_node.wait_for_block(new_block_hashes[-1])
 
             for i in range(3):
                 # Mine another block, still should get only an inv
                 tip = self.mine_blocks(1)
-                assert_equal(inv_node.check_last_announcement(inv=[tip]), True)
-                assert_equal(test_node.check_last_announcement(inv=[tip]), True)
+                inv_node.check_last_announcement(inv=[tip], headers=[])
+                test_node.check_last_announcement(inv=[tip], headers=[])
                 if i == 0:
                     # Just get the data -- shouldn't cause headers announcements to resume
-                    test_node.get_data([tip])
+                    test_node.send_get_data([tip])
                     test_node.wait_for_block(tip)
                 elif i == 1:
                     # Send a getheaders message that shouldn't trigger headers announcements
                     # to resume (best header sent will be too old)
-                    test_node.get_headers(locator=[fork_point], hashstop=new_block_hashes[1])
-                    test_node.get_data([tip])
+                    test_node.send_get_headers(locator=[fork_point], hashstop=new_block_hashes[1])
+                    test_node.send_get_data([tip])
                     test_node.wait_for_block(tip)
                 elif i == 2:
-                    test_node.get_data([tip])
+                    test_node.send_get_data([tip])
                     test_node.wait_for_block(tip)
                     # This time, try sending either a getheaders to trigger resumption
-                    # of headers announcements, or mine a new block and inv it, also 
+                    # of headers announcements, or mine a new block and inv it, also
                     # triggering resumption of headers announcements.
                     if j == 0:
-                        test_node.get_headers(locator=[tip], hashstop=0)
+                        test_node.send_get_headers(locator=[tip], hashstop=0)
                         test_node.sync_with_ping()
                     else:
                         test_node.send_block_inv(tip)
                         test_node.sync_with_ping()
             # New blocks should now be announced with header
             tip = self.mine_blocks(1)
-            assert_equal(inv_node.check_last_announcement(inv=[tip]), True)
-            assert_equal(test_node.check_last_announcement(headers=[tip]), True)
+            inv_node.check_last_announcement(inv=[tip], headers=[])
+            test_node.check_last_announcement(headers=[tip])
 
         self.log.info("Part 3: success!")
 
@@ -434,7 +455,7 @@ class SendHeadersTest(BitcoinTestFramework):
             height += 1
             inv_node.send_message(msg_block(blocks[-1]))
 
-        inv_node.sync_with_ping() # Make sure blocks are processed
+        inv_node.sync_with_ping()  # Make sure blocks are processed
         test_node.last_message.pop("getdata", None)
         test_node.send_header_for_blocks(blocks)
         test_node.sync_with_ping()
@@ -453,9 +474,9 @@ class SendHeadersTest(BitcoinTestFramework):
 
         test_node.send_header_for_blocks(blocks)
         test_node.sync_with_ping()
-        test_node.wait_for_getdata([x.sha256 for x in blocks], timeout=direct_fetch_response_time)
+        test_node.wait_for_getdata([x.sha256 for x in blocks], timeout=DIRECT_FETCH_RESPONSE_TIME)
 
-        [ test_node.send_message(msg_block(x)) for x in blocks ]
+        [test_node.send_message(msg_block(x)) for x in blocks]
 
         test_node.sync_with_ping()
 
@@ -484,13 +505,13 @@ class SendHeadersTest(BitcoinTestFramework):
         # both blocks (same work as tip)
         test_node.send_header_for_blocks(blocks[1:2])
         test_node.sync_with_ping()
-        test_node.wait_for_getdata([x.sha256 for x in blocks[0:2]], timeout=direct_fetch_response_time)
+        test_node.wait_for_getdata([x.sha256 for x in blocks[0:2]], timeout=DIRECT_FETCH_RESPONSE_TIME)
 
         # Announcing 16 more headers should trigger direct fetch for 14 more
         # blocks
         test_node.send_header_for_blocks(blocks[2:18])
         test_node.sync_with_ping()
-        test_node.wait_for_getdata([x.sha256 for x in blocks[2:16]], timeout=direct_fetch_response_time)
+        test_node.wait_for_getdata([x.sha256 for x in blocks[2:16]], timeout=DIRECT_FETCH_RESPONSE_TIME)
 
         # Announcing 1 more header should not trigger any response
         test_node.last_message.pop("getdata", None)
@@ -502,7 +523,7 @@ class SendHeadersTest(BitcoinTestFramework):
         self.log.info("Part 4: success!")
 
         # Now deliver all those blocks we announced.
-        [ test_node.send_message(msg_block(x)) for x in blocks ]
+        [test_node.send_message(msg_block(x)) for x in blocks]
 
         self.log.info("Part 5: Testing handling of unconnecting headers")
         # First we test that receipt of an unconnecting header doesn't prevent
@@ -524,7 +545,7 @@ class SendHeadersTest(BitcoinTestFramework):
             test_node.wait_for_getheaders()
             test_node.send_header_for_blocks(blocks)
             test_node.wait_for_getdata([x.sha256 for x in blocks])
-            [ test_node.send_message(msg_block(x)) for x in blocks ]
+            [test_node.send_message(msg_block(x)) for x in blocks]
             test_node.sync_with_ping()
             assert_equal(int(self.nodes[0].getbestblockhash(), 16), blocks[1].sha256)
 
@@ -532,7 +553,7 @@ class SendHeadersTest(BitcoinTestFramework):
         # Now we test that if we repeatedly don't send connecting headers, we
         # don't go into an infinite loop trying to get them to connect.
         MAX_UNCONNECTING_HEADERS = 10
-        for j in range(MAX_UNCONNECTING_HEADERS+1):
+        for j in range(MAX_UNCONNECTING_HEADERS + 1):
             blocks.append(create_block(tip, create_coinbase(height), block_time))
             blocks[-1].solve()
             tip = blocks[-1].sha256
@@ -554,11 +575,11 @@ class SendHeadersTest(BitcoinTestFramework):
 
         # Now try to see how many unconnecting headers we can send
         # before we get disconnected.  Should be 5*MAX_UNCONNECTING_HEADERS
-        for i in range(5*MAX_UNCONNECTING_HEADERS - 1):
+        for i in range(5 * MAX_UNCONNECTING_HEADERS - 1):
             # Send a header that doesn't connect, check that we get a getheaders.
             with mininode_lock:
                 test_node.last_message.pop("getheaders", None)
-            test_node.send_header_for_blocks([blocks[i%len(blocks)]])
+            test_node.send_header_for_blocks([blocks[i % len(blocks)]])
             test_node.wait_for_getheaders()
 
         # Eventually this stops working.
diff --git a/test/functional/p2p-timeouts.py b/test/functional/p2p_timeouts.py
index 14a3bf48fb..6d21095cc6 100755
--- a/test/functional/p2p-timeouts.py
+++ b/test/functional/p2p_timeouts.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2016 The Bitcoin Core developers
+# Copyright (c) 2016-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test various net timeouts.
@@ -27,8 +27,8 @@ from test_framework.mininode import *
 from test_framework.test_framework import BitcoinTestFramework
 from test_framework.util import *
 
-class TestNode(NodeConnCB):
-    def on_version(self, conn, message):
+class TestNode(P2PInterface):
+    def on_version(self, message):
         # Don't send a verack in response
         pass
 
@@ -43,7 +43,7 @@ class TimeoutsTest(BitcoinTestFramework):
         no_version_node = self.nodes[0].add_p2p_connection(TestNode(), send_version=False)
         no_send_node = self.nodes[0].add_p2p_connection(TestNode(), send_version=False)
 
-        NetworkThread().start()  # Start up network handling in another thread
+        network_thread_start()
 
         sleep(1)
 
diff --git a/test/functional/p2p-acceptblock.py b/test/functional/p2p_unrequested_blocks.py
index ca0e0080a1..672626f15b 100755
--- a/test/functional/p2p-acceptblock.py
+++ b/test/functional/p2p_unrequested_blocks.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2015-2016 The Bitcoin Core developers
+# Copyright (c) 2015-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test processing of unrequested blocks.
@@ -7,7 +7,7 @@
 Setup: two nodes, node0+node1, not connected to each other. Node1 will have
 nMinimumChainWork set to 0x10, so it won't process low-work unrequested blocks.
 
-We have one NodeConn connection to node0 called test_node, and one to node1
+We have one P2PInterface connection to node0 called test_node, and one to node1
 called min_work_node.
 
 The test:
@@ -79,11 +79,11 @@ class AcceptBlockTest(BitcoinTestFramework):
     def run_test(self):
         # Setup the p2p connections and start up the network thread.
         # test_node connects to node0 (not whitelisted)
-        test_node = self.nodes[0].add_p2p_connection(NodeConnCB())
-        # min_work_node connects to node1
-        min_work_node = self.nodes[1].add_p2p_connection(NodeConnCB())
+        test_node = self.nodes[0].add_p2p_connection(P2PInterface())
+        # min_work_node connects to node1 (whitelisted)
+        min_work_node = self.nodes[1].add_p2p_connection(P2PInterface())
 
-        NetworkThread().start() # Start up network handling in another thread
+        network_thread_start()
 
         # Test logic begins here
         test_node.wait_for_verack()
@@ -207,9 +207,13 @@ class AcceptBlockTest(BitcoinTestFramework):
         # disconnect/reconnect first
 
         self.nodes[0].disconnect_p2ps()
-        test_node = self.nodes[0].add_p2p_connection(NodeConnCB())
+        self.nodes[1].disconnect_p2ps()
+        network_thread_join()
 
+        test_node = self.nodes[0].add_p2p_connection(P2PInterface())
+        network_thread_start()
         test_node.wait_for_verack()
+
         test_node.send_message(msg_block(block_h1f))
 
         test_node.sync_with_ping()
@@ -292,9 +296,9 @@ class AcceptBlockTest(BitcoinTestFramework):
             test_node.wait_for_disconnect()
 
             self.nodes[0].disconnect_p2ps()
-            test_node = self.nodes[0].add_p2p_connection(NodeConnCB())
+            test_node = self.nodes[0].add_p2p_connection(P2PInterface())
 
-            NetworkThread().start() # Start up network handling in another thread
+            network_thread_start()
             test_node.wait_for_verack()
 
         # We should have failed reorg and switched back to 290 (but have block 291)
diff --git a/test/functional/rpcbind_test.py b/test/functional/rpc_bind.py
index 0e8c3fa209..05433c7e24 100755
--- a/test/functional/rpcbind_test.py
+++ b/test/functional/rpc_bind.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2014-2016 The Bitcoin Core developers
+# Copyright (c) 2014-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test running bitcoind with the -rpcbind and -rpcallowip options."""
diff --git a/test/functional/blockchain.py b/test/functional/rpc_blockchain.py
index 49fafbc9aa..11acff4be1 100755
--- a/test/functional/blockchain.py
+++ b/test/functional/rpc_blockchain.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2014-2016 The Bitcoin Core developers
+# Copyright (c) 2014-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test RPCs related to blockchainstate.
diff --git a/test/functional/decodescript.py b/test/functional/rpc_decodescript.py
index 6611da8831..1ffc570437 100755
--- a/test/functional/decodescript.py
+++ b/test/functional/rpc_decodescript.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2015-2016 The Bitcoin Core developers
+# Copyright (c) 2015-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test decoding scripts via decodescript RPC command."""
diff --git a/test/functional/deprecated_rpc.py b/test/functional/rpc_deprecated.py
index 19fd24edb9..d6f25158ef 100755
--- a/test/functional/deprecated_rpc.py
+++ b/test/functional/rpc_deprecated.py
@@ -10,7 +10,7 @@ class DeprecatedRpcTest(BitcoinTestFramework):
     def set_test_params(self):
         self.num_nodes = 2
         self.setup_clean_chain = True
-        self.extra_args = [[], ["-deprecatedrpc=estimatefee"]]
+        self.extra_args = [[], ["-deprecatedrpc=estimatefee", "-deprecatedrpc=createmultisig"]]
 
     def run_test(self):
         self.log.info("estimatefee: Shows deprecated message")
@@ -19,5 +19,9 @@ class DeprecatedRpcTest(BitcoinTestFramework):
         self.log.info("Using -deprecatedrpc=estimatefee bypasses the error")
         self.nodes[1].estimatefee(1)
 
+        self.log.info("Make sure that -deprecatedrpc=createmultisig allows it to take addresses")
+        assert_raises_rpc_error(-5, "Invalid public key", self.nodes[0].createmultisig, 1, [self.nodes[0].getnewaddress()])
+        self.nodes[1].createmultisig(1, [self.nodes[1].getnewaddress()])
+
 if __name__ == '__main__':
     DeprecatedRpcTest().main()
diff --git a/test/functional/fundrawtransaction.py b/test/functional/rpc_fundrawtransaction.py
index d446f56d0e..5f7a0586e0 100755
--- a/test/functional/fundrawtransaction.py
+++ b/test/functional/rpc_fundrawtransaction.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2014-2016 The Bitcoin Core developers
+# Copyright (c) 2014-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test the fundrawtransaction RPC."""
@@ -212,6 +212,19 @@ class RawTransactionsTest(BitcoinTestFramework):
         out = dec_tx['vout'][0]
         assert_equal(change, out['scriptPubKey']['addresses'][0])
 
+        #########################################################
+        # test a fundrawtransaction with a provided change type #
+        #########################################################
+        utx = get_unspent(self.nodes[2].listunspent(), 5)
+
+        inputs  = [ {'txid' : utx['txid'], 'vout' : utx['vout']} ]
+        outputs = { self.nodes[0].getnewaddress() : Decimal(4.0) }
+        rawtx   = self.nodes[2].createrawtransaction(inputs, outputs)
+        assert_raises_rpc_error(-1, "JSON value is not a string as expected", self.nodes[2].fundrawtransaction, rawtx, {'change_type': None})
+        assert_raises_rpc_error(-5, "Unknown change type", self.nodes[2].fundrawtransaction, rawtx, {'change_type': ''})
+        rawtx = self.nodes[2].fundrawtransaction(rawtx, {'change_type': 'bech32'})
+        tx  = self.nodes[2].decoderawtransaction(rawtx['hex'])
+        assert_equal('witness_v0_keyhash', tx['vout'][rawtx['changepos']]['scriptPubKey']['type'])
 
         #########################################################################
         # test a fundrawtransaction with a VIN smaller than the required amount #
@@ -358,7 +371,7 @@ class RawTransactionsTest(BitcoinTestFramework):
         addr1Obj = self.nodes[1].validateaddress(addr1)
         addr2Obj = self.nodes[1].validateaddress(addr2)
 
-        mSigObj = self.nodes[1].addmultisigaddress(2, [addr1Obj['pubkey'], addr2Obj['pubkey']])
+        mSigObj = self.nodes[1].addmultisigaddress(2, [addr1Obj['pubkey'], addr2Obj['pubkey']])['address']
 
         inputs = []
         outputs = {mSigObj:1.1}
@@ -391,7 +404,7 @@ class RawTransactionsTest(BitcoinTestFramework):
         addr4Obj = self.nodes[1].validateaddress(addr4)
         addr5Obj = self.nodes[1].validateaddress(addr5)
 
-        mSigObj = self.nodes[1].addmultisigaddress(4, [addr1Obj['pubkey'], addr2Obj['pubkey'], addr3Obj['pubkey'], addr4Obj['pubkey'], addr5Obj['pubkey']])
+        mSigObj = self.nodes[1].addmultisigaddress(4, [addr1Obj['pubkey'], addr2Obj['pubkey'], addr3Obj['pubkey'], addr4Obj['pubkey'], addr5Obj['pubkey']])['address']
 
         inputs = []
         outputs = {mSigObj:1.1}
@@ -418,7 +431,7 @@ class RawTransactionsTest(BitcoinTestFramework):
         addr1Obj = self.nodes[2].validateaddress(addr1)
         addr2Obj = self.nodes[2].validateaddress(addr2)
 
-        mSigObj = self.nodes[2].addmultisigaddress(2, [addr1Obj['pubkey'], addr2Obj['pubkey']])
+        mSigObj = self.nodes[2].addmultisigaddress(2, [addr1Obj['pubkey'], addr2Obj['pubkey']])['address']
 
 
         # send 1.2 BTC to msig addr
diff --git a/test/functional/getchaintips.py b/test/functional/rpc_getchaintips.py
index 21b67bfc64..277930bb1a 100755
--- a/test/functional/getchaintips.py
+++ b/test/functional/rpc_getchaintips.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2014-2016 The Bitcoin Core developers
+# Copyright (c) 2014-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test the getchaintips RPC.
diff --git a/test/functional/invalidateblock.py b/test/functional/rpc_invalidateblock.py
index dd3daf1e07..b037c2431d 100755
--- a/test/functional/invalidateblock.py
+++ b/test/functional/rpc_invalidateblock.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2014-2016 The Bitcoin Core developers
+# Copyright (c) 2014-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test the invalidateblock RPC."""
diff --git a/test/functional/listtransactions.py b/test/functional/rpc_listtransactions.py
index e4522cc3b5..ba71ac0967 100755
--- a/test/functional/listtransactions.py
+++ b/test/functional/rpc_listtransactions.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2014-2016 The Bitcoin Core developers
+# Copyright (c) 2014-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test the listtransactions API."""
@@ -81,7 +81,8 @@ class ListTransactionsTest(BitcoinTestFramework):
                            {"category":"receive","amount":Decimal("0.44")},
                            {"txid":txid, "account" : "toself"} )
 
-        multisig = self.nodes[1].createmultisig(1, [self.nodes[1].getnewaddress()])
+        pubkey = self.nodes[1].validateaddress(self.nodes[1].getnewaddress())['pubkey']
+        multisig = self.nodes[1].createmultisig(1, [pubkey])
         self.nodes[0].importaddress(multisig["redeemScript"], "watchonly", False, True)
         txid = self.nodes[1].sendtoaddress(multisig["address"], 0.1)
         self.nodes[1].generate(1)
diff --git a/test/functional/rpcnamedargs.py b/test/functional/rpc_named_arguments.py
index c47212bddb..97bee39614 100755
--- a/test/functional/rpcnamedargs.py
+++ b/test/functional/rpc_named_arguments.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2016 The Bitcoin Core developers
+# Copyright (c) 2016-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test using named arguments for RPCs."""
diff --git a/test/functional/net.py b/test/functional/rpc_net.py
index 16e4f6adb4..16e4f6adb4 100755
--- a/test/functional/net.py
+++ b/test/functional/rpc_net.py
diff --git a/test/functional/preciousblock.py b/test/functional/rpc_preciousblock.py
index 1466f901c0..960cd0ad12 100755
--- a/test/functional/preciousblock.py
+++ b/test/functional/rpc_preciousblock.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2015-2016 The Bitcoin Core developers
+# Copyright (c) 2015-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test the preciousblock RPC."""
diff --git a/test/functional/rawtransactions.py b/test/functional/rpc_rawtransaction.py
index 2777cb9693..d39d86b310 100755
--- a/test/functional/rawtransactions.py
+++ b/test/functional/rpc_rawtransaction.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2014-2016 The Bitcoin Core developers
+# Copyright (c) 2014-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test the rawtransaction RPCs.
@@ -15,11 +15,31 @@ Test the following RPCs:
 from test_framework.test_framework import BitcoinTestFramework
 from test_framework.util import *
 
+
+class multidict(dict):
+    """Dictionary that allows duplicate keys.
+
+    Constructed with a list of (key, value) tuples. When dumped by the json module,
+    will output invalid json with repeated keys, eg:
+    >>> json.dumps(multidict([(1,2),(1,2)])
+    '{"1": 2, "1": 2}'
+
+    Used to test calls to rpc methods with repeated keys in the json object."""
+
+    def __init__(self, x):
+        dict.__init__(self, x)
+        self.x = x
+
+    def items(self):
+        return self.x
+
+
 # Create one-input, one-output, no-fee transaction:
 class RawTransactionsTest(BitcoinTestFramework):
     def set_test_params(self):
         self.setup_clean_chain = True
         self.num_nodes = 3
+        self.extra_args = [["-addresstype=legacy"], ["-addresstype=legacy"], ["-addresstype=legacy"]]
 
     def setup_network(self, split=False):
         super().setup_network()
@@ -39,6 +59,41 @@ class RawTransactionsTest(BitcoinTestFramework):
         self.nodes[0].generate(5)
         self.sync_all()
 
+        # Test `createrawtransaction` required parameters
+        assert_raises_rpc_error(-1, "createrawtransaction", self.nodes[0].createrawtransaction)
+        assert_raises_rpc_error(-1, "createrawtransaction", self.nodes[0].createrawtransaction, [])
+
+        # Test `createrawtransaction` invalid extra parameters
+        assert_raises_rpc_error(-1, "createrawtransaction", self.nodes[0].createrawtransaction, [], {}, 0, False, 'foo')
+
+        # Test `createrawtransaction` invalid `inputs`
+        txid = '1d1d4e24ed99057e84c3f80fd8fbec79ed9e1acee37da269356ecea000000000'
+        assert_raises_rpc_error(-3, "Expected type array", self.nodes[0].createrawtransaction, 'foo', {})
+        assert_raises_rpc_error(-1, "JSON value is not an object as expected", self.nodes[0].createrawtransaction, ['foo'], {})
+        assert_raises_rpc_error(-8, "txid must be hexadecimal string", self.nodes[0].createrawtransaction, [{}], {})
+        assert_raises_rpc_error(-8, "txid must be hexadecimal string", self.nodes[0].createrawtransaction, [{'txid': 'foo'}], {})
+        assert_raises_rpc_error(-8, "Invalid parameter, missing vout key", self.nodes[0].createrawtransaction, [{'txid': txid}], {})
+        assert_raises_rpc_error(-8, "Invalid parameter, missing vout key", self.nodes[0].createrawtransaction, [{'txid': txid, 'vout': 'foo'}], {})
+        assert_raises_rpc_error(-8, "Invalid parameter, vout must be positive", self.nodes[0].createrawtransaction, [{'txid': txid, 'vout': -1}], {})
+        assert_raises_rpc_error(-8, "Invalid parameter, sequence number is out of range", self.nodes[0].createrawtransaction, [{'txid': txid, 'vout': 0, 'sequence': -1}], {})
+
+        # Test `createrawtransaction` invalid `outputs`
+        address = self.nodes[0].getnewaddress()
+        assert_raises_rpc_error(-3, "Expected type object", self.nodes[0].createrawtransaction, [], 'foo')
+        assert_raises_rpc_error(-8, "Data must be hexadecimal string", self.nodes[0].createrawtransaction, [], {'data': 'foo'})
+        assert_raises_rpc_error(-5, "Invalid Bitcoin address", self.nodes[0].createrawtransaction, [], {'foo': 0})
+        assert_raises_rpc_error(-3, "Invalid amount", self.nodes[0].createrawtransaction, [], {address: 'foo'})
+        assert_raises_rpc_error(-3, "Amount out of range", self.nodes[0].createrawtransaction, [], {address: -1})
+        assert_raises_rpc_error(-8, "Invalid parameter, duplicated address: %s" % address, self.nodes[0].createrawtransaction, [], multidict([(address, 1), (address, 1)]))
+
+        # Test `createrawtransaction` invalid `locktime`
+        assert_raises_rpc_error(-3, "Expected type number", self.nodes[0].createrawtransaction, [], {}, 'foo')
+        assert_raises_rpc_error(-8, "Invalid parameter, locktime out of range", self.nodes[0].createrawtransaction, [], {}, -1)
+        assert_raises_rpc_error(-8, "Invalid parameter, locktime out of range", self.nodes[0].createrawtransaction, [], {}, 4294967296)
+
+        # Test `createrawtransaction` invalid `replaceable`
+        assert_raises_rpc_error(-3, "Expected type bool", self.nodes[0].createrawtransaction, [], {}, 0, 'foo')
+
         #########################################
         # sendrawtransaction with missing input #
         #########################################
@@ -50,6 +105,36 @@ class RawTransactionsTest(BitcoinTestFramework):
         # This will raise an exception since there are missing inputs
         assert_raises_rpc_error(-25, "Missing inputs", self.nodes[2].sendrawtransaction, rawtx['hex'])
 
+        #####################################
+        # getrawtransaction with block hash #
+        #####################################
+
+        # make a tx by sending then generate 2 blocks; block1 has the tx in it
+        tx = self.nodes[2].sendtoaddress(self.nodes[1].getnewaddress(), 1)
+        block1, block2 = self.nodes[2].generate(2)
+        self.sync_all()
+        # We should be able to get the raw transaction by providing the correct block
+        gottx = self.nodes[0].getrawtransaction(tx, True, block1)
+        assert_equal(gottx['txid'], tx)
+        assert_equal(gottx['in_active_chain'], True)
+        # We should not have the 'in_active_chain' flag when we don't provide a block
+        gottx = self.nodes[0].getrawtransaction(tx, True)
+        assert_equal(gottx['txid'], tx)
+        assert 'in_active_chain' not in gottx
+        # We should not get the tx if we provide an unrelated block
+        assert_raises_rpc_error(-5, "No such transaction found", self.nodes[0].getrawtransaction, tx, True, block2)
+        # An invalid block hash should raise the correct errors
+        assert_raises_rpc_error(-8, "parameter 3 must be hexadecimal", self.nodes[0].getrawtransaction, tx, True, True)
+        assert_raises_rpc_error(-8, "parameter 3 must be hexadecimal", self.nodes[0].getrawtransaction, tx, True, "foobar")
+        assert_raises_rpc_error(-8, "parameter 3 must be of length 64", self.nodes[0].getrawtransaction, tx, True, "abcd1234")
+        assert_raises_rpc_error(-5, "Block hash not found", self.nodes[0].getrawtransaction, tx, True, "0000000000000000000000000000000000000000000000000000000000000000")
+        # Undo the blocks and check in_active_chain
+        self.nodes[0].invalidateblock(block1)
+        gottx = self.nodes[0].getrawtransaction(txid=tx, verbose=True, blockhash=block1)
+        assert_equal(gottx['in_active_chain'], False)
+        self.nodes[0].reconsiderblock(block1)
+        assert_equal(self.nodes[0].getbestblockhash(), block2)
+
         #########################
         # RAW TX MULTISIG TESTS #
         #########################
@@ -60,7 +145,12 @@ class RawTransactionsTest(BitcoinTestFramework):
         addr1Obj = self.nodes[2].validateaddress(addr1)
         addr2Obj = self.nodes[2].validateaddress(addr2)
 
-        mSigObj = self.nodes[2].addmultisigaddress(2, [addr1Obj['pubkey'], addr2Obj['pubkey']])
+        # Tests for createmultisig and addmultisigaddress
+        assert_raises_rpc_error(-5, "Invalid public key", self.nodes[0].createmultisig, 1, ["01020304"])
+        self.nodes[0].createmultisig(2, [addr1Obj['pubkey'], addr2Obj['pubkey']]) # createmultisig can only take public keys
+        assert_raises_rpc_error(-5, "Invalid public key", self.nodes[0].createmultisig, 2, [addr1Obj['pubkey'], addr1]) # addmultisigaddress can take both pubkeys and addresses so long as they are in the wallet, which is tested here.
+
+        mSigObj = self.nodes[2].addmultisigaddress(2, [addr1Obj['pubkey'], addr1])['address']
 
         #use balance deltas instead of absolute values
         bal = self.nodes[2].getbalance()
@@ -83,7 +173,7 @@ class RawTransactionsTest(BitcoinTestFramework):
         addr2Obj = self.nodes[2].validateaddress(addr2)
         addr3Obj = self.nodes[2].validateaddress(addr3)
 
-        mSigObj = self.nodes[2].addmultisigaddress(2, [addr1Obj['pubkey'], addr2Obj['pubkey'], addr3Obj['pubkey']])
+        mSigObj = self.nodes[2].addmultisigaddress(2, [addr1Obj['pubkey'], addr2Obj['pubkey'], addr3Obj['pubkey']])['address']
 
         txId = self.nodes[0].sendtoaddress(mSigObj, 2.2)
         decTx = self.nodes[0].gettransaction(txId)
@@ -105,7 +195,7 @@ class RawTransactionsTest(BitcoinTestFramework):
                 break
 
         bal = self.nodes[0].getbalance()
-        inputs = [{ "txid" : txId, "vout" : vout['n'], "scriptPubKey" : vout['scriptPubKey']['hex']}]
+        inputs = [{ "txid" : txId, "vout" : vout['n'], "scriptPubKey" : vout['scriptPubKey']['hex'], "amount" : vout['value']}]
         outputs = { self.nodes[0].getnewaddress() : 2.19 }
         rawTx = self.nodes[2].createrawtransaction(inputs, outputs)
         rawTxPartialSigned = self.nodes[1].signrawtransaction(rawTx, inputs)
@@ -128,8 +218,8 @@ class RawTransactionsTest(BitcoinTestFramework):
         addr1Obj = self.nodes[1].validateaddress(addr1)
         addr2Obj = self.nodes[2].validateaddress(addr2)
 
-        self.nodes[1].addmultisigaddress(2, [addr1Obj['pubkey'], addr2Obj['pubkey']])
-        mSigObj = self.nodes[2].addmultisigaddress(2, [addr1Obj['pubkey'], addr2Obj['pubkey']])
+        self.nodes[1].addmultisigaddress(2, [addr1Obj['pubkey'], addr2Obj['pubkey']])['address']
+        mSigObj = self.nodes[2].addmultisigaddress(2, [addr1Obj['pubkey'], addr2Obj['pubkey']])['address']
         mSigObjValid = self.nodes[2].validateaddress(mSigObj)
 
         txId = self.nodes[0].sendtoaddress(mSigObj, 2.2)
@@ -150,7 +240,7 @@ class RawTransactionsTest(BitcoinTestFramework):
                 break
 
         bal = self.nodes[0].getbalance()
-        inputs = [{ "txid" : txId, "vout" : vout['n'], "scriptPubKey" : vout['scriptPubKey']['hex'], "redeemScript" : mSigObjValid['hex']}]
+        inputs = [{ "txid" : txId, "vout" : vout['n'], "scriptPubKey" : vout['scriptPubKey']['hex'], "redeemScript" : mSigObjValid['hex'], "amount" : vout['value']}]
         outputs = { self.nodes[0].getnewaddress() : 2.19 }
         rawTx2 = self.nodes[2].createrawtransaction(inputs, outputs)
         rawTxPartialSigned1 = self.nodes[1].signrawtransaction(rawTx2, inputs)
@@ -169,6 +259,17 @@ class RawTransactionsTest(BitcoinTestFramework):
         self.sync_all()
         assert_equal(self.nodes[0].getbalance(), bal+Decimal('50.00000000')+Decimal('2.19000000')) #block reward + tx
 
+        # decoderawtransaction tests
+        # witness transaction
+        encrawtx = "010000000001010000000000000072c1a6a246ae63f74f931e8365e15a089c68d61900000000000000000000ffffffff0100e1f50500000000000000000000"
+        decrawtx = self.nodes[0].decoderawtransaction(encrawtx, True) # decode as witness transaction
+        assert_equal(decrawtx['vout'][0]['value'], Decimal('1.00000000'))
+        assert_raises_rpc_error(-22, 'TX decode failed', self.nodes[0].decoderawtransaction, encrawtx, False) # force decode as non-witness transaction
+        # non-witness transaction
+        encrawtx = "01000000010000000000000072c1a6a246ae63f74f931e8365e15a089c68d61900000000000000000000ffffffff0100e1f505000000000000000000"
+        decrawtx = self.nodes[0].decoderawtransaction(encrawtx, False) # decode as non-witness transaction
+        assert_equal(decrawtx['vout'][0]['value'], Decimal('1.00000000'))
+        
         # getrawtransaction tests
         # 1. valid parameters - only supply txid
         txHash = rawTx["hash"]
@@ -188,13 +289,13 @@ class RawTransactionsTest(BitcoinTestFramework):
         assert_equal(self.nodes[0].getrawtransaction(txHash, True)["hex"], rawTxSigned['hex'])
 
         # 6. invalid parameters - supply txid and string "Flase"
-        assert_raises_rpc_error(-3,"Invalid type", self.nodes[0].getrawtransaction, txHash, "Flase")
+        assert_raises_rpc_error(-1, "not a boolean", self.nodes[0].getrawtransaction, txHash, "Flase")
 
         # 7. invalid parameters - supply txid and empty array
-        assert_raises_rpc_error(-3,"Invalid type", self.nodes[0].getrawtransaction, txHash, [])
+        assert_raises_rpc_error(-1, "not a boolean", self.nodes[0].getrawtransaction, txHash, [])
 
         # 8. invalid parameters - supply txid and empty dict
-        assert_raises_rpc_error(-3,"Invalid type", self.nodes[0].getrawtransaction, txHash, {})
+        assert_raises_rpc_error(-1, "not a boolean", self.nodes[0].getrawtransaction, txHash, {})
 
         inputs  = [ {'txid' : "1d1d4e24ed99057e84c3f80fd8fbec79ed9e1acee37da269356ecea000000000", 'vout' : 1, 'sequence' : 1000}]
         outputs = { self.nodes[0].getnewaddress() : 1 }
diff --git a/test/functional/signmessages.py b/test/functional/rpc_signmessage.py
index 52ba6a5ad7..5b6935ceea 100755
--- a/test/functional/signmessages.py
+++ b/test/functional/rpc_signmessage.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2016 The Bitcoin Core developers
+# Copyright (c) 2016-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test RPC commands for signing and verifying messages."""
@@ -11,6 +11,7 @@ class SignMessagesTest(BitcoinTestFramework):
     def set_test_params(self):
         self.setup_clean_chain = True
         self.num_nodes = 1
+        self.extra_args = [["-addresstype=legacy"]]
 
     def run_test(self):
         message = 'This is just a test message'
diff --git a/test/functional/signrawtransactions.py b/test/functional/rpc_signrawtransaction.py
index 9a45d53cb8..dd0fa6c02c 100755
--- a/test/functional/signrawtransactions.py
+++ b/test/functional/rpc_signrawtransaction.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2015-2016 The Bitcoin Core developers
+# Copyright (c) 2015-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test transaction signing using the signrawtransaction RPC."""
diff --git a/test/functional/merkle_blocks.py b/test/functional/rpc_txoutproof.py
index b3989a4c54..50e0371fdf 100755
--- a/test/functional/merkle_blocks.py
+++ b/test/functional/rpc_txoutproof.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2014-2016 The Bitcoin Core developers
+# Copyright (c) 2014-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test gettxoutproof and verifytxoutproof RPCs."""
diff --git a/test/functional/uptime.py b/test/functional/rpc_uptime.py
index 78236b2393..78236b2393 100755
--- a/test/functional/uptime.py
+++ b/test/functional/rpc_uptime.py
diff --git a/test/functional/multi_rpc.py b/test/functional/rpc_users.py
index a2b346f274..01f68344ae 100755
--- a/test/functional/multi_rpc.py
+++ b/test/functional/rpc_users.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2015-2016 The Bitcoin Core developers
+# Copyright (c) 2015-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test multiple RPC users."""
diff --git a/test/functional/test_framework/address.py b/test/functional/test_framework/address.py
index 2e2db5ffb2..b076c9dd43 100644
--- a/test/functional/test_framework/address.py
+++ b/test/functional/test_framework/address.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2016 The Bitcoin Core developers
+# Copyright (c) 2016-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Encode and decode BASE58, P2PKH and P2SH addresses."""
diff --git a/test/functional/test_framework/blockstore.py b/test/functional/test_framework/blockstore.py
index 051c57a6c7..6067a407cc 100644
--- a/test/functional/test_framework/blockstore.py
+++ b/test/functional/test_framework/blockstore.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2015-2016 The Bitcoin Core developers
+# Copyright (c) 2015-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """BlockStore and TxStore helper classes."""
diff --git a/test/functional/test_framework/blocktools.py b/test/functional/test_framework/blocktools.py
index 5dcf516dc6..642ef98a27 100644
--- a/test/functional/test_framework/blocktools.py
+++ b/test/functional/test_framework/blocktools.py
@@ -1,11 +1,27 @@
 #!/usr/bin/env python3
-# Copyright (c) 2015-2016 The Bitcoin Core developers
+# Copyright (c) 2015-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Utilities for manipulating blocks and transactions."""
 
+from .address import (
+    key_to_p2sh_p2wpkh,
+    key_to_p2wpkh,
+    script_to_p2sh_p2wsh,
+    script_to_p2wsh,
+)
 from .mininode import *
-from .script import CScript, OP_TRUE, OP_CHECKSIG, OP_RETURN
+from .script import (
+    CScript,
+    OP_0,
+    OP_1,
+    OP_CHECKMULTISIG,
+    OP_CHECKSIG,
+    OP_RETURN,
+    OP_TRUE,
+    hash160,
+)
+from .util import assert_equal
 
 # Create a block (with regtest difficulty)
 def create_block(hashprev, coinbase, nTime=None):
@@ -108,3 +124,49 @@ def get_legacy_sigopcount_tx(tx, fAccurate=True):
         # scriptSig might be of type bytes, so convert to CScript for the moment
         count += CScript(j.scriptSig).GetSigOpCount(fAccurate)
     return count
+
+# Create a scriptPubKey corresponding to either a P2WPKH output for the
+# given pubkey, or a P2WSH output of a 1-of-1 multisig for the given
+# pubkey. Returns the hex encoding of the scriptPubKey.
+def witness_script(use_p2wsh, pubkey):
+    if (use_p2wsh == False):
+        # P2WPKH instead
+        pubkeyhash = hash160(hex_str_to_bytes(pubkey))
+        pkscript = CScript([OP_0, pubkeyhash])
+    else:
+        # 1-of-1 multisig
+        witness_program = CScript([OP_1, hex_str_to_bytes(pubkey), OP_1, OP_CHECKMULTISIG])
+        scripthash = sha256(witness_program)
+        pkscript = CScript([OP_0, scripthash])
+    return bytes_to_hex_str(pkscript)
+
+# Return a transaction (in hex) that spends the given utxo to a segwit output,
+# optionally wrapping the segwit output using P2SH.
+def create_witness_tx(node, use_p2wsh, utxo, pubkey, encode_p2sh, amount):
+    if use_p2wsh:
+        program = CScript([OP_1, hex_str_to_bytes(pubkey), OP_1, OP_CHECKMULTISIG])
+        addr = script_to_p2sh_p2wsh(program) if encode_p2sh else script_to_p2wsh(program)
+    else:
+        addr = key_to_p2sh_p2wpkh(pubkey) if encode_p2sh else key_to_p2wpkh(pubkey)
+    if not encode_p2sh:
+        assert_equal(node.validateaddress(addr)['scriptPubKey'], witness_script(use_p2wsh, pubkey))
+    return node.createrawtransaction([utxo], {addr: amount})
+
+# Create a transaction spending a given utxo to a segwit output corresponding
+# to the given pubkey: use_p2wsh determines whether to use P2WPKH or P2WSH;
+# encode_p2sh determines whether to wrap in P2SH.
+# sign=True will have the given node sign the transaction.
+# insert_redeem_script will be added to the scriptSig, if given.
+def send_to_witness(use_p2wsh, node, utxo, pubkey, encode_p2sh, amount, sign=True, insert_redeem_script=""):
+    tx_to_witness = create_witness_tx(node, use_p2wsh, utxo, pubkey, encode_p2sh, amount)
+    if (sign):
+        signed = node.signrawtransaction(tx_to_witness)
+        assert("errors" not in signed or len(["errors"]) == 0)
+        return node.sendrawtransaction(signed["hex"])
+    else:
+        if (insert_redeem_script):
+            tx = FromHex(CTransaction(), tx_to_witness)
+            tx.vin[0].scriptSig += CScript([hex_str_to_bytes(insert_redeem_script)])
+            tx_to_witness = ToHex(tx)
+
+    return node.sendrawtransaction(tx_to_witness)
diff --git a/test/functional/test_framework/comptool.py b/test/functional/test_framework/comptool.py
index 723826bae4..61ea2280e2 100755
--- a/test/functional/test_framework/comptool.py
+++ b/test/functional/test_framework/comptool.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2015-2016 The Bitcoin Core developers
+# Copyright (c) 2015-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Compare two or more bitcoinds to each other.
@@ -39,11 +39,10 @@ class RejectResult():
     def __repr__(self):
         return '%i:%s' % (self.code,self.reason or '*')
 
-class TestNode(NodeConnCB):
+class TestNode(P2PInterface):
 
     def __init__(self, block_store, tx_store):
         super().__init__()
-        self.conn = None
         self.bestblockhash = None
         self.block_store = block_store
         self.block_request_map = {}
@@ -58,26 +57,23 @@ class TestNode(NodeConnCB):
         self.lastInv = []
         self.closed = False
 
-    def on_close(self, conn):
+    def on_close(self):
         self.closed = True
 
-    def add_connection(self, conn):
-        self.conn = conn
-
-    def on_headers(self, conn, message):
+    def on_headers(self, message):
         if len(message.headers) > 0:
             best_header = message.headers[-1]
             best_header.calc_sha256()
             self.bestblockhash = best_header.sha256
 
-    def on_getheaders(self, conn, message):
+    def on_getheaders(self, message):
         response = self.block_store.headers_for(message.locator, message.hashstop)
         if response is not None:
-            conn.send_message(response)
+            self.send_message(response)
 
-    def on_getdata(self, conn, message):
-        [conn.send_message(r) for r in self.block_store.get_blocks(message.inv)]
-        [conn.send_message(r) for r in self.tx_store.get_transactions(message.inv)]
+    def on_getdata(self, message):
+        [self.send_message(r) for r in self.block_store.get_blocks(message.inv)]
+        [self.send_message(r) for r in self.tx_store.get_transactions(message.inv)]
 
         for i in message.inv:
             if i.type == 1 or i.type == 1 | (1 << 30): # MSG_TX or MSG_WITNESS_TX
@@ -85,16 +81,16 @@ class TestNode(NodeConnCB):
             elif i.type == 2 or i.type == 2 | (1 << 30): # MSG_BLOCK or MSG_WITNESS_BLOCK
                 self.block_request_map[i.hash] = True
 
-    def on_inv(self, conn, message):
+    def on_inv(self, message):
         self.lastInv = [x.hash for x in message.inv]
 
-    def on_pong(self, conn, message):
+    def on_pong(self, message):
         try:
             del self.pingMap[message.nonce]
         except KeyError:
             raise AssertionError("Got pong for unknown ping [%s]" % repr(message))
 
-    def on_reject(self, conn, message):
+    def on_reject(self, message):
         if message.message == b'tx':
             self.tx_reject_map[message.data] = RejectResult(message.code, message.reason)
         if message.message == b'block':
@@ -102,30 +98,30 @@ class TestNode(NodeConnCB):
 
     def send_inv(self, obj):
         mtype = 2 if isinstance(obj, CBlock) else 1
-        self.conn.send_message(msg_inv([CInv(mtype, obj.sha256)]))
+        self.send_message(msg_inv([CInv(mtype, obj.sha256)]))
 
     def send_getheaders(self):
         # We ask for headers from their last tip.
         m = msg_getheaders()
         m.locator = self.block_store.get_locator(self.bestblockhash)
-        self.conn.send_message(m)
+        self.send_message(m)
 
     def send_header(self, header):
         m = msg_headers()
         m.headers.append(header)
-        self.conn.send_message(m)
+        self.send_message(m)
 
     # This assumes BIP31
     def send_ping(self, nonce):
         self.pingMap[nonce] = True
-        self.conn.send_message(msg_ping(nonce))
+        self.send_message(msg_ping(nonce))
 
     def received_ping_response(self, nonce):
         return nonce not in self.pingMap
 
     def send_mempool(self):
         self.lastInv = []
-        self.conn.send_message(msg_mempool())
+        self.send_message(msg_mempool())
 
 # TestInstance:
 #
@@ -166,8 +162,7 @@ class TestManager():
 
     def __init__(self, testgen, datadir):
         self.test_generator = testgen
-        self.connections    = []
-        self.test_nodes     = []
+        self.p2p_connections= []
         self.block_store    = BlockStore(datadir)
         self.tx_store       = TxStore(datadir)
         self.ping_counter   = 1
@@ -175,28 +170,24 @@ class TestManager():
     def add_all_connections(self, nodes):
         for i in range(len(nodes)):
             # Create a p2p connection to each node
-            test_node = TestNode(self.block_store, self.tx_store)
-            self.test_nodes.append(test_node)
-            self.connections.append(NodeConn('127.0.0.1', p2p_port(i), test_node))
-            # Make sure the TestNode (callback class) has a reference to its
-            # associated NodeConn
-            test_node.add_connection(self.connections[-1])
+            node = TestNode(self.block_store, self.tx_store)
+            node.peer_connect('127.0.0.1', p2p_port(i))
+            self.p2p_connections.append(node)
 
     def clear_all_connections(self):
-        self.connections    = []
-        self.test_nodes     = []
+        self.p2p_connections = []
 
     def wait_for_disconnections(self):
         def disconnected():
-            return all(node.closed for node in self.test_nodes)
+            return all(node.closed for node in self.p2p_connections)
         wait_until(disconnected, timeout=10, lock=mininode_lock)
 
     def wait_for_verack(self):
-        return all(node.wait_for_verack() for node in self.test_nodes)
+        return all(node.wait_for_verack() for node in self.p2p_connections)
 
     def wait_for_pings(self, counter):
         def received_pongs():
-            return all(node.received_ping_response(counter) for node in self.test_nodes)
+            return all(node.received_ping_response(counter) for node in self.p2p_connections)
         wait_until(received_pongs, lock=mininode_lock)
 
     # sync_blocks: Wait for all connections to request the blockhash given
@@ -206,17 +197,17 @@ class TestManager():
         def blocks_requested():
             return all(
                 blockhash in node.block_request_map and node.block_request_map[blockhash]
-                for node in self.test_nodes
+                for node in self.p2p_connections
             )
 
         # --> error if not requested
         wait_until(blocks_requested, attempts=20*num_blocks, lock=mininode_lock)
 
         # Send getheaders message
-        [ c.cb.send_getheaders() for c in self.connections ]
+        [ c.send_getheaders() for c in self.p2p_connections ]
 
         # Send ping and wait for response -- synchronization hack
-        [ c.cb.send_ping(self.ping_counter) for c in self.connections ]
+        [ c.send_ping(self.ping_counter) for c in self.p2p_connections ]
         self.wait_for_pings(self.ping_counter)
         self.ping_counter += 1
 
@@ -226,42 +217,42 @@ class TestManager():
         def transaction_requested():
             return all(
                 txhash in node.tx_request_map and node.tx_request_map[txhash]
-                for node in self.test_nodes
+                for node in self.p2p_connections
             )
 
         # --> error if not requested
         wait_until(transaction_requested, attempts=20*num_events, lock=mininode_lock)
 
         # Get the mempool
-        [ c.cb.send_mempool() for c in self.connections ]
+        [ c.send_mempool() for c in self.p2p_connections ]
 
         # Send ping and wait for response -- synchronization hack
-        [ c.cb.send_ping(self.ping_counter) for c in self.connections ]
+        [ c.send_ping(self.ping_counter) for c in self.p2p_connections ]
         self.wait_for_pings(self.ping_counter)
         self.ping_counter += 1
 
         # Sort inv responses from each node
         with mininode_lock:
-            [ c.cb.lastInv.sort() for c in self.connections ]
+            [ c.lastInv.sort() for c in self.p2p_connections ]
 
     # Verify that the tip of each connection all agree with each other, and
     # with the expected outcome (if given)
     def check_results(self, blockhash, outcome):
         with mininode_lock:
-            for c in self.connections:
+            for c in self.p2p_connections:
                 if outcome is None:
-                    if c.cb.bestblockhash != self.connections[0].cb.bestblockhash:
+                    if c.bestblockhash != self.p2p_connections[0].bestblockhash:
                         return False
                 elif isinstance(outcome, RejectResult): # Check that block was rejected w/ code
-                    if c.cb.bestblockhash == blockhash:
+                    if c.bestblockhash == blockhash:
                         return False
-                    if blockhash not in c.cb.block_reject_map:
+                    if blockhash not in c.block_reject_map:
                         logger.error('Block not in reject map: %064x' % (blockhash))
                         return False
-                    if not outcome.match(c.cb.block_reject_map[blockhash]):
-                        logger.error('Block rejected with %s instead of expected %s: %064x' % (c.cb.block_reject_map[blockhash], outcome, blockhash))
+                    if not outcome.match(c.block_reject_map[blockhash]):
+                        logger.error('Block rejected with %s instead of expected %s: %064x' % (c.block_reject_map[blockhash], outcome, blockhash))
                         return False
-                elif ((c.cb.bestblockhash == blockhash) != outcome):
+                elif ((c.bestblockhash == blockhash) != outcome):
                     return False
             return True
 
@@ -273,21 +264,21 @@ class TestManager():
     # a particular tx's existence in the mempool is the same across all nodes.
     def check_mempool(self, txhash, outcome):
         with mininode_lock:
-            for c in self.connections:
+            for c in self.p2p_connections:
                 if outcome is None:
                     # Make sure the mempools agree with each other
-                    if c.cb.lastInv != self.connections[0].cb.lastInv:
+                    if c.lastInv != self.p2p_connections[0].lastInv:
                         return False
                 elif isinstance(outcome, RejectResult): # Check that tx was rejected w/ code
-                    if txhash in c.cb.lastInv:
+                    if txhash in c.lastInv:
                         return False
-                    if txhash not in c.cb.tx_reject_map:
+                    if txhash not in c.tx_reject_map:
                         logger.error('Tx not in reject map: %064x' % (txhash))
                         return False
-                    if not outcome.match(c.cb.tx_reject_map[txhash]):
-                        logger.error('Tx rejected with %s instead of expected %s: %064x' % (c.cb.tx_reject_map[txhash], outcome, txhash))
+                    if not outcome.match(c.tx_reject_map[txhash]):
+                        logger.error('Tx rejected with %s instead of expected %s: %064x' % (c.tx_reject_map[txhash], outcome, txhash))
                         return False
-                elif ((txhash in c.cb.lastInv) != outcome):
+                elif ((txhash in c.lastInv) != outcome):
                     return False
             return True
 
@@ -332,25 +323,25 @@ class TestManager():
                         first_block_with_hash = False
                     with mininode_lock:
                         self.block_store.add_block(block)
-                        for c in self.connections:
-                            if first_block_with_hash and block.sha256 in c.cb.block_request_map and c.cb.block_request_map[block.sha256] == True:
+                        for c in self.p2p_connections:
+                            if first_block_with_hash and block.sha256 in c.block_request_map and c.block_request_map[block.sha256] == True:
                                 # There was a previous request for this block hash
                                 # Most likely, we delivered a header for this block
                                 # but never had the block to respond to the getdata
                                 c.send_message(msg_block(block))
                             else:
-                                c.cb.block_request_map[block.sha256] = False
+                                c.block_request_map[block.sha256] = False
                     # Either send inv's to each node and sync, or add
                     # to invqueue for later inv'ing.
                     if (test_instance.sync_every_block):
                         # if we expect success, send inv and sync every block
                         # if we expect failure, just push the block and see what happens.
                         if outcome == True:
-                            [ c.cb.send_inv(block) for c in self.connections ]
+                            [ c.send_inv(block) for c in self.p2p_connections ]
                             self.sync_blocks(block.sha256, 1)
                         else:
-                            [ c.send_message(msg_block(block)) for c in self.connections ]
-                            [ c.cb.send_ping(self.ping_counter) for c in self.connections ]
+                            [ c.send_message(msg_block(block)) for c in self.p2p_connections ]
+                            [ c.send_ping(self.ping_counter) for c in self.p2p_connections ]
                             self.wait_for_pings(self.ping_counter)
                             self.ping_counter += 1
                         if (not self.check_results(tip, outcome)):
@@ -360,7 +351,7 @@ class TestManager():
                 elif isinstance(b_or_t, CBlockHeader):
                     block_header = b_or_t
                     self.block_store.add_header(block_header)
-                    [ c.cb.send_header(block_header) for c in self.connections ]
+                    [ c.send_header(block_header) for c in self.p2p_connections ]
 
                 else:  # Tx test runner
                     assert(isinstance(b_or_t, CTransaction))
@@ -369,11 +360,11 @@ class TestManager():
                     # Add to shared tx store and clear map entry
                     with mininode_lock:
                         self.tx_store.add_transaction(tx)
-                        for c in self.connections:
-                            c.cb.tx_request_map[tx.sha256] = False
+                        for c in self.p2p_connections:
+                            c.tx_request_map[tx.sha256] = False
                     # Again, either inv to all nodes or save for later
                     if (test_instance.sync_every_tx):
-                        [ c.cb.send_inv(tx) for c in self.connections ]
+                        [ c.send_inv(tx) for c in self.p2p_connections ]
                         self.sync_transaction(tx.sha256, 1)
                         if (not self.check_mempool(tx.sha256, outcome)):
                             raise AssertionError("Test failed at test %d" % test_number)
@@ -381,26 +372,26 @@ class TestManager():
                         invqueue.append(CInv(1, tx.sha256))
                 # Ensure we're not overflowing the inv queue
                 if len(invqueue) == MAX_INV_SZ:
-                    [ c.send_message(msg_inv(invqueue)) for c in self.connections ]
+                    [ c.send_message(msg_inv(invqueue)) for c in self.p2p_connections ]
                     invqueue = []
 
             # Do final sync if we weren't syncing on every block or every tx.
             if (not test_instance.sync_every_block and block is not None):
                 if len(invqueue) > 0:
-                    [ c.send_message(msg_inv(invqueue)) for c in self.connections ]
+                    [ c.send_message(msg_inv(invqueue)) for c in self.p2p_connections ]
                     invqueue = []
                 self.sync_blocks(block.sha256, len(test_instance.blocks_and_transactions))
                 if (not self.check_results(tip, block_outcome)):
                     raise AssertionError("Block test failed at test %d" % test_number)
             if (not test_instance.sync_every_tx and tx is not None):
                 if len(invqueue) > 0:
-                    [ c.send_message(msg_inv(invqueue)) for c in self.connections ]
+                    [ c.send_message(msg_inv(invqueue)) for c in self.p2p_connections ]
                     invqueue = []
                 self.sync_transaction(tx.sha256, len(test_instance.blocks_and_transactions))
                 if (not self.check_mempool(tx.sha256, tx_outcome)):
                     raise AssertionError("Mempool test failed at test %d" % test_number)
 
-        [ c.disconnect_node() for c in self.connections ]
+        [ c.disconnect_node() for c in self.p2p_connections ]
         self.wait_for_disconnections()
         self.block_store.close()
         self.tx_store.close()
diff --git a/test/functional/test_framework/coverage.py b/test/functional/test_framework/coverage.py
index ddc3c515b2..f8761f2bb3 100644
--- a/test/functional/test_framework/coverage.py
+++ b/test/functional/test_framework/coverage.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2015-2016 The Bitcoin Core developers
+# Copyright (c) 2015-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Utilities for doing coverage analysis on the RPC interface.
diff --git a/test/functional/test_framework/messages.py b/test/functional/test_framework/messages.py
index 40d02f3ee0..a54a0299c7 100644
--- a/test/functional/test_framework/messages.py
+++ b/test/functional/test_framework/messages.py
@@ -24,7 +24,7 @@ import struct
 import time
 
 from test_framework.siphash import siphash256
-from test_framework.util import hex_str_to_bytes, bytes_to_hex_str, wait_until
+from test_framework.util import hex_str_to_bytes, bytes_to_hex_str
 
 MIN_VERSION_SUPPORTED = 60001
 MY_VERSION = 70014  # past bip-31 for ping/pong
@@ -38,10 +38,11 @@ COIN = 100000000 # 1 btc in satoshis
 
 NODE_NETWORK = (1 << 0)
 # NODE_GETUTXO = (1 << 1)
-# NODE_BLOOM = (1 << 2)
+NODE_BLOOM = (1 << 2)
 NODE_WITNESS = (1 << 3)
 NODE_UNSUPPORTED_SERVICE_BIT_5 = (1 << 5)
 NODE_UNSUPPORTED_SERVICE_BIT_7 = (1 << 7)
+NODE_NETWORK_LIMITED = (1 << 10)
 
 # Serialization/deserialization tools
 def sha256(s):
@@ -167,21 +168,6 @@ def ser_string_vector(l):
     return r
 
 
-def deser_int_vector(f):
-    nit = deser_compact_size(f)
-    r = []
-    for i in range(nit):
-        t = struct.unpack("<i", f.read(4))[0]
-        r.append(t)
-    return r
-
-
-def ser_int_vector(l):
-    r = ser_compact_size(len(l))
-    for i in l:
-        r += struct.pack("<i", i)
-    return r
-
 # Deserialize from a hex string representation (eg from RPC)
 def FromHex(obj, hex_string):
     obj.deserialize(BytesIO(hex_str_to_bytes(hex_string)))
@@ -467,10 +453,10 @@ class CTransaction():
         r += struct.pack("<I", self.nLockTime)
         return r
 
-    # Regular serialization is without witness -- must explicitly
-    # call serialize_with_witness to include witness data.
+    # Regular serialization is with witness -- must explicitly
+    # call serialize_without_witness to exclude witness data.
     def serialize(self):
-        return self.serialize_without_witness()
+        return self.serialize_with_witness()
 
     # Recalculate the txid (transaction hash without witness)
     def rehash(self):
@@ -486,7 +472,7 @@ class CTransaction():
 
         if self.sha256 is None:
             self.sha256 = uint256_from_str(hash256(self.serialize_without_witness()))
-        self.hash = encode(hash256(self.serialize())[::-1], 'hex_codec').decode('ascii')
+        self.hash = encode(hash256(self.serialize_without_witness())[::-1], 'hex_codec').decode('ascii')
 
     def is_valid(self):
         self.calc_sha256()
@@ -583,7 +569,7 @@ class CBlock(CBlockHeader):
         if with_witness:
             r += ser_vector(self.vtx, "serialize_with_witness")
         else:
-            r += ser_vector(self.vtx)
+            r += ser_vector(self.vtx, "serialize_without_witness")
         return r
 
     # Calculate the merkle root given a vector of transaction hashes
@@ -650,7 +636,7 @@ class PrefilledTransaction():
         self.tx = CTransaction()
         self.tx.deserialize(f)
 
-    def serialize(self, with_witness=False):
+    def serialize(self, with_witness=True):
         r = b""
         r += ser_compact_size(self.index)
         if with_witness:
@@ -659,6 +645,9 @@ class PrefilledTransaction():
             r += self.tx.serialize_without_witness()
         return r
 
+    def serialize_without_witness(self):
+        return self.serialize(with_witness=False)
+
     def serialize_with_witness(self):
         return self.serialize(with_witness=True)
 
@@ -698,7 +687,7 @@ class P2PHeaderAndShortIDs():
         if with_witness:
             r += ser_vector(self.prefilled_txn, "serialize_with_witness")
         else:
-            r += ser_vector(self.prefilled_txn)
+            r += ser_vector(self.prefilled_txn, "serialize_without_witness")
         return r
 
     def __repr__(self):
@@ -829,13 +818,13 @@ class BlockTransactions():
         self.blockhash = deser_uint256(f)
         self.transactions = deser_vector(f, CTransaction)
 
-    def serialize(self, with_witness=False):
+    def serialize(self, with_witness=True):
         r = b""
         r += ser_uint256(self.blockhash)
         if with_witness:
             r += ser_vector(self.transactions, "serialize_with_witness")
         else:
-            r += ser_vector(self.transactions)
+            r += ser_vector(self.transactions, "serialize_without_witness")
         return r
 
     def __repr__(self):
@@ -1035,7 +1024,7 @@ class msg_block():
         self.block.deserialize(f)
 
     def serialize(self):
-        return self.block.serialize()
+        return self.block.serialize(with_witness=False)
 
     def __repr__(self):
         return "msg_block(block=%s)" % (repr(self.block))
@@ -1306,7 +1295,7 @@ class msg_blocktxn():
 
     def serialize(self):
         r = b""
-        r += self.block_transactions.serialize()
+        r += self.block_transactions.serialize(with_witness=False)
         return r
 
     def __repr__(self):
diff --git a/test/functional/test_framework/mininode.py b/test/functional/test_framework/mininode.py
index 24c96b5681..fe14591139 100755
--- a/test/functional/test_framework/mininode.py
+++ b/test/functional/test_framework/mininode.py
@@ -1,7 +1,7 @@
 #!/usr/bin/env python3
 # Copyright (c) 2010 ArtForz -- public domain half-a-node
 # Copyright (c) 2012 Jeff Garzik
-# Copyright (c) 2010-2016 The Bitcoin Core developers
+# Copyright (c) 2010-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Bitcoin P2P network half-a-node.
@@ -9,10 +9,8 @@
 This python code was modified from ArtForz' public domain  half-a-node, as
 found in the mini-node branch of http://github.com/jgarzik/pynode.
 
-NodeConn: an object which manages p2p connectivity to a bitcoin node
-NodeConnCB: a base class that describes the interface for receiving
-            callbacks with network messages from a NodeConn
-"""
+P2PConnection: A low-level connection object to a node's P2P interface
+P2PInterface: A high-level interface object for communicating to a node over P2P"""
 import asyncore
 from collections import defaultdict
 from io import BytesIO
@@ -20,10 +18,10 @@ import logging
 import socket
 import struct
 import sys
-import time
-from threading import RLock, Thread
+import threading
 
 from test_framework.messages import *
+from test_framework.util import wait_until
 
 logger = logging.getLogger("TestFramework.mininode")
 
@@ -57,173 +55,36 @@ MAGIC_BYTES = {
     "regtest": b"\xfa\xbf\xb5\xda",   # regtest
 }
 
-class NodeConnCB():
-    """Callback and helper functions for P2P connection to a bitcoind node.
+class P2PConnection(asyncore.dispatcher):
+    """A low-level connection object to a node's P2P interface.
 
-    Individual testcases should subclass this and override the on_* methods
-    if they want to alter message handling behaviour."""
-    def __init__(self):
-        # Track whether we have a P2P connection open to the node
-        self.connected = False
-        self.connection = None
-
-        # Track number of messages of each type received and the most recent
-        # message of each type
-        self.message_count = defaultdict(int)
-        self.last_message = {}
-
-        # A count of the number of ping messages we've sent to the node
-        self.ping_counter = 1
-
-    # Message receiving methods
-
-    def deliver(self, conn, message):
-        """Receive message and dispatch message to appropriate callback.
-
-        We keep a count of how many of each message type has been received
-        and the most recent message of each type."""
-        with mininode_lock:
-            try:
-                command = message.command.decode('ascii')
-                self.message_count[command] += 1
-                self.last_message[command] = message
-                getattr(self, 'on_' + command)(conn, message)
-            except:
-                print("ERROR delivering %s (%s)" % (repr(message),
-                                                    sys.exc_info()[0]))
-                raise
-
-    # Callback methods. Can be overridden by subclasses in individual test
-    # cases to provide custom message handling behaviour.
-
-    def on_open(self, conn):
-        self.connected = True
-
-    def on_close(self, conn):
-        self.connected = False
-        self.connection = None
-
-    def on_addr(self, conn, message): pass
-    def on_block(self, conn, message): pass
-    def on_blocktxn(self, conn, message): pass
-    def on_cmpctblock(self, conn, message): pass
-    def on_feefilter(self, conn, message): pass
-    def on_getaddr(self, conn, message): pass
-    def on_getblocks(self, conn, message): pass
-    def on_getblocktxn(self, conn, message): pass
-    def on_getdata(self, conn, message): pass
-    def on_getheaders(self, conn, message): pass
-    def on_headers(self, conn, message): pass
-    def on_mempool(self, conn): pass
-    def on_pong(self, conn, message): pass
-    def on_reject(self, conn, message): pass
-    def on_sendcmpct(self, conn, message): pass
-    def on_sendheaders(self, conn, message): pass
-    def on_tx(self, conn, message): pass
-
-    def on_inv(self, conn, message):
-        want = msg_getdata()
-        for i in message.inv:
-            if i.type != 0:
-                want.inv.append(i)
-        if len(want.inv):
-            conn.send_message(want)
-
-    def on_ping(self, conn, message):
-        conn.send_message(msg_pong(message.nonce))
-
-    def on_verack(self, conn, message):
-        self.verack_received = True
-
-    def on_version(self, conn, message):
-        assert message.nVersion >= MIN_VERSION_SUPPORTED, "Version {} received. Test framework only supports versions greater than {}".format(message.nVersion, MIN_VERSION_SUPPORTED)
-        conn.send_message(msg_verack())
-        conn.nServices = message.nServices
+    This class is responsible for:
 
-    # Connection helper methods
-
-    def add_connection(self, conn):
-        self.connection = conn
+    - opening and closing the TCP connection to the node
+    - reading bytes from and writing bytes to the socket
+    - deserializing and serializing the P2P message header
+    - logging messages as they are sent and received
 
-    def wait_for_disconnect(self, timeout=60):
-        test_function = lambda: not self.connected
-        wait_until(test_function, timeout=timeout, lock=mininode_lock)
+    This class contains no logic for handing the P2P message payloads. It must be
+    sub-classed and the on_message() callback overridden."""
 
-    # Message receiving helper methods
-
-    def wait_for_block(self, blockhash, timeout=60):
-        test_function = lambda: self.last_message.get("block") and self.last_message["block"].block.rehash() == blockhash
-        wait_until(test_function, timeout=timeout, lock=mininode_lock)
-
-    def wait_for_getdata(self, timeout=60):
-        test_function = lambda: self.last_message.get("getdata")
-        wait_until(test_function, timeout=timeout, lock=mininode_lock)
-
-    def wait_for_getheaders(self, timeout=60):
-        test_function = lambda: self.last_message.get("getheaders")
-        wait_until(test_function, timeout=timeout, lock=mininode_lock)
-
-    def wait_for_inv(self, expected_inv, timeout=60):
-        """Waits for an INV message and checks that the first inv object in the message was as expected."""
-        if len(expected_inv) > 1:
-            raise NotImplementedError("wait_for_inv() will only verify the first inv object")
-        test_function = lambda: self.last_message.get("inv") and \
-                                self.last_message["inv"].inv[0].type == expected_inv[0].type and \
-                                self.last_message["inv"].inv[0].hash == expected_inv[0].hash
-        wait_until(test_function, timeout=timeout, lock=mininode_lock)
-
-    def wait_for_verack(self, timeout=60):
-        test_function = lambda: self.message_count["verack"]
-        wait_until(test_function, timeout=timeout, lock=mininode_lock)
-
-    # Message sending helper functions
-
-    def send_message(self, message):
-        if self.connection:
-            self.connection.send_message(message)
-        else:
-            logger.error("Cannot send message. No connection to node!")
-
-    def send_and_ping(self, message):
-        self.send_message(message)
-        self.sync_with_ping()
-
-    # Sync up with the node
-    def sync_with_ping(self, timeout=60):
-        self.send_message(msg_ping(nonce=self.ping_counter))
-        test_function = lambda: self.last_message.get("pong") and self.last_message["pong"].nonce == self.ping_counter
-        wait_until(test_function, timeout=timeout, lock=mininode_lock)
-        self.ping_counter += 1
-
-class NodeConn(asyncore.dispatcher):
-    """The actual NodeConn class
+    def __init__(self):
+        # All P2PConnections must be created before starting the NetworkThread.
+        # assert that the network thread is not running.
+        assert not network_thread_running()
 
-    This class provides an interface for a p2p connection to a specified node."""
+        super().__init__(map=mininode_socket_map)
 
-    def __init__(self, dstaddr, dstport, callback, net="regtest", services=NODE_NETWORK|NODE_WITNESS, send_version=True):
-        asyncore.dispatcher.__init__(self, map=mininode_socket_map)
+    def peer_connect(self, dstaddr, dstport, net="regtest"):
         self.dstaddr = dstaddr
         self.dstport = dstport
         self.create_socket(socket.AF_INET, socket.SOCK_STREAM)
         self.socket.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)
         self.sendbuf = b""
         self.recvbuf = b""
-        self.last_sent = 0
         self.state = "connecting"
         self.network = net
-        self.cb = callback
         self.disconnect = False
-        self.nServices = 0
-
-        if send_version:
-            # stuff version msg into sendbuf
-            vt = msg_version()
-            vt.nServices = services
-            vt.addrTo.ip = self.dstaddr
-            vt.addrTo.port = self.dstport
-            vt.addrFrom.ip = "0.0.0.0"
-            vt.addrFrom.port = 0
-            self.send_message(vt, True)
 
         logger.info('Connecting to Bitcoin Node: %s:%d' % (self.dstaddr, self.dstport))
 
@@ -232,15 +93,22 @@ class NodeConn(asyncore.dispatcher):
         except:
             self.handle_close()
 
+    def peer_disconnect(self):
+        # Connection could have already been closed by other end.
+        if self.state == "connected":
+            self.disconnect_node()
+
     # Connection and disconnection methods
 
     def handle_connect(self):
+        """asyncore callback when a connection is opened."""
         if self.state != "connected":
             logger.debug("Connected & Listening: %s:%d" % (self.dstaddr, self.dstport))
             self.state = "connected"
-            self.cb.on_open(self)
+            self.on_open()
 
     def handle_close(self):
+        """asyncore callback when a connection is closed."""
         logger.debug("Closing connection to: %s:%d" % (self.dstaddr, self.dstport))
         self.state = "closed"
         self.recvbuf = b""
@@ -249,10 +117,10 @@ class NodeConn(asyncore.dispatcher):
             self.close()
         except:
             pass
-        self.cb.on_close(self)
+        self.on_close()
 
     def disconnect_node(self):
-        """ Disconnect the p2p connection.
+        """Disconnect the p2p connection.
 
         Called by the test logic thread. Causes the p2p connection
         to be disconnected on the next iteration of the asyncore loop."""
@@ -260,16 +128,19 @@ class NodeConn(asyncore.dispatcher):
 
     # Socket read methods
 
-    def readable(self):
-        return True
-
     def handle_read(self):
+        """asyncore callback when data is read from the socket."""
         t = self.recv(8192)
         if len(t) > 0:
             self.recvbuf += t
-            self.got_data()
+            self._on_data()
 
-    def got_data(self):
+    def _on_data(self):
+        """Try to read P2P messages from the recv buffer.
+
+        This method reads data from the buffer in a loop. It deserializes,
+        parses and verifies the P2P header, then passes the P2P payload to
+        the on_message callback for processing."""
         try:
             while True:
                 if len(self.recvbuf) < 4:
@@ -294,26 +165,27 @@ class NodeConn(asyncore.dispatcher):
                 f = BytesIO(msg)
                 t = MESSAGEMAP[command]()
                 t.deserialize(f)
-                self.got_message(t)
+                self._log_message("receive", t)
+                self.on_message(t)
         except Exception as e:
             logger.exception('Error reading message:', repr(e))
             raise
 
-    def got_message(self, message):
-        if self.last_sent + 30 * 60 < time.time():
-            self.send_message(MESSAGEMAP[b'ping']())
-        self._log_message("receive", message)
-        self.cb.deliver(self, message)
+    def on_message(self, message):
+        """Callback for processing a P2P payload. Must be overridden by derived class."""
+        raise NotImplementedError
 
     # Socket write methods
 
     def writable(self):
+        """asyncore method to determine whether the handle_write() callback should be called on the next loop."""
         with mininode_lock:
             pre_connection = self.state == "connecting"
             length = len(self.sendbuf)
         return (length > 0 or pre_connection)
 
     def handle_write(self):
+        """asyncore callback when data should be written to the socket."""
         with mininode_lock:
             # asyncore does not expose socket connection, only the first read/write
             # event, thus we must check connection manually here to know when we
@@ -331,6 +203,10 @@ class NodeConn(asyncore.dispatcher):
             self.sendbuf = self.sendbuf[sent:]
 
     def send_message(self, message, pushbuf=False):
+        """Send a P2P message over the socket.
+
+        This method takes a P2P payload, builds the P2P header and adds
+        the message to the send buffer to be sent over the socket."""
         if self.state != "connected" and not pushbuf:
             raise IOError('Not connected, no pushbuf')
         self._log_message("send", message)
@@ -353,11 +229,11 @@ class NodeConn(asyncore.dispatcher):
                     self.sendbuf = tmsg
             else:
                 self.sendbuf += tmsg
-            self.last_sent = time.time()
 
     # Class utility methods
 
     def _log_message(self, direction, msg):
+        """Logs a message being sent or received over the connection."""
         if direction == "send":
             log_message = "Send message to "
         elif direction == "receive":
@@ -368,6 +244,152 @@ class NodeConn(asyncore.dispatcher):
         logger.debug(log_message)
 
 
+class P2PInterface(P2PConnection):
+    """A high-level P2P interface class for communicating with a Bitcoin node.
+
+    This class provides high-level callbacks for processing P2P message
+    payloads, as well as convenience methods for interacting with the
+    node over P2P.
+
+    Individual testcases should subclass this and override the on_* methods
+    if they want to alter message handling behaviour."""
+    def __init__(self):
+        super().__init__()
+
+        # Track number of messages of each type received and the most recent
+        # message of each type
+        self.message_count = defaultdict(int)
+        self.last_message = {}
+
+        # A count of the number of ping messages we've sent to the node
+        self.ping_counter = 1
+
+        # The network services received from the peer
+        self.nServices = 0
+
+    def peer_connect(self, *args, services=NODE_NETWORK|NODE_WITNESS, send_version=True, **kwargs):
+        super().peer_connect(*args, **kwargs)
+
+        if send_version:
+            # Send a version msg
+            vt = msg_version()
+            vt.nServices = services
+            vt.addrTo.ip = self.dstaddr
+            vt.addrTo.port = self.dstport
+            vt.addrFrom.ip = "0.0.0.0"
+            vt.addrFrom.port = 0
+            self.send_message(vt, True)
+
+    # Message receiving methods
+
+    def on_message(self, message):
+        """Receive message and dispatch message to appropriate callback.
+
+        We keep a count of how many of each message type has been received
+        and the most recent message of each type."""
+        with mininode_lock:
+            try:
+                command = message.command.decode('ascii')
+                self.message_count[command] += 1
+                self.last_message[command] = message
+                getattr(self, 'on_' + command)(message)
+            except:
+                print("ERROR delivering %s (%s)" % (repr(message), sys.exc_info()[0]))
+                raise
+
+    # Callback methods. Can be overridden by subclasses in individual test
+    # cases to provide custom message handling behaviour.
+
+    def on_open(self):
+        pass
+
+    def on_close(self):
+        pass
+
+    def on_addr(self, message): pass
+    def on_block(self, message): pass
+    def on_blocktxn(self, message): pass
+    def on_cmpctblock(self, message): pass
+    def on_feefilter(self, message): pass
+    def on_getaddr(self, message): pass
+    def on_getblocks(self, message): pass
+    def on_getblocktxn(self, message): pass
+    def on_getdata(self, message): pass
+    def on_getheaders(self, message): pass
+    def on_headers(self, message): pass
+    def on_mempool(self, message): pass
+    def on_pong(self, message): pass
+    def on_reject(self, message): pass
+    def on_sendcmpct(self, message): pass
+    def on_sendheaders(self, message): pass
+    def on_tx(self, message): pass
+
+    def on_inv(self, message):
+        want = msg_getdata()
+        for i in message.inv:
+            if i.type != 0:
+                want.inv.append(i)
+        if len(want.inv):
+            self.send_message(want)
+
+    def on_ping(self, message):
+        self.send_message(msg_pong(message.nonce))
+
+    def on_verack(self, message):
+        self.verack_received = True
+
+    def on_version(self, message):
+        assert message.nVersion >= MIN_VERSION_SUPPORTED, "Version {} received. Test framework only supports versions greater than {}".format(message.nVersion, MIN_VERSION_SUPPORTED)
+        self.send_message(msg_verack())
+        self.nServices = message.nServices
+
+    # Connection helper methods
+
+    def wait_for_disconnect(self, timeout=60):
+        test_function = lambda: self.state != "connected"
+        wait_until(test_function, timeout=timeout, lock=mininode_lock)
+
+    # Message receiving helper methods
+
+    def wait_for_block(self, blockhash, timeout=60):
+        test_function = lambda: self.last_message.get("block") and self.last_message["block"].block.rehash() == blockhash
+        wait_until(test_function, timeout=timeout, lock=mininode_lock)
+
+    def wait_for_getdata(self, timeout=60):
+        test_function = lambda: self.last_message.get("getdata")
+        wait_until(test_function, timeout=timeout, lock=mininode_lock)
+
+    def wait_for_getheaders(self, timeout=60):
+        test_function = lambda: self.last_message.get("getheaders")
+        wait_until(test_function, timeout=timeout, lock=mininode_lock)
+
+    def wait_for_inv(self, expected_inv, timeout=60):
+        """Waits for an INV message and checks that the first inv object in the message was as expected."""
+        if len(expected_inv) > 1:
+            raise NotImplementedError("wait_for_inv() will only verify the first inv object")
+        test_function = lambda: self.last_message.get("inv") and \
+                                self.last_message["inv"].inv[0].type == expected_inv[0].type and \
+                                self.last_message["inv"].inv[0].hash == expected_inv[0].hash
+        wait_until(test_function, timeout=timeout, lock=mininode_lock)
+
+    def wait_for_verack(self, timeout=60):
+        test_function = lambda: self.message_count["verack"]
+        wait_until(test_function, timeout=timeout, lock=mininode_lock)
+
+    # Message sending helper functions
+
+    def send_and_ping(self, message):
+        self.send_message(message)
+        self.sync_with_ping()
+
+    # Sync up with the node
+    def sync_with_ping(self, timeout=60):
+        self.send_message(msg_ping(nonce=self.ping_counter))
+        test_function = lambda: self.last_message.get("pong") and self.last_message["pong"].nonce == self.ping_counter
+        wait_until(test_function, timeout=timeout, lock=mininode_lock)
+        self.ping_counter += 1
+
+
 # Keep our own socket map for asyncore, so that we can track disconnects
 # ourselves (to workaround an issue with closing an asyncore socket when
 # using select)
@@ -375,13 +397,16 @@ mininode_socket_map = dict()
 
 # One lock for synchronizing all data access between the networking thread (see
 # NetworkThread below) and the thread running the test logic.  For simplicity,
-# NodeConn acquires this lock whenever delivering a message to a NodeConnCB,
+# P2PConnection acquires this lock whenever delivering a message to a P2PInterface,
 # and whenever adding anything to the send buffer (in send_message()).  This
 # lock should be acquired in the thread running the test logic to synchronize
-# access to any data shared with the NodeConnCB or NodeConn.
-mininode_lock = RLock()
+# access to any data shared with the P2PInterface or P2PConnection.
+mininode_lock = threading.RLock()
+
+class NetworkThread(threading.Thread):
+    def __init__(self):
+        super().__init__(name="NetworkThread")
 
-class NetworkThread(Thread):
     def run(self):
         while mininode_socket_map:
             # We check for whether to disconnect outside of the asyncore
@@ -394,3 +419,24 @@ class NetworkThread(Thread):
             [obj.handle_close() for obj in disconnected]
             asyncore.loop(0.1, use_poll=True, map=mininode_socket_map, count=1)
         logger.debug("Network thread closing")
+
+def network_thread_start():
+    """Start the network thread."""
+    # Only one network thread may run at a time
+    assert not network_thread_running()
+
+    NetworkThread().start()
+
+def network_thread_running():
+    """Return whether the network thread is running."""
+    return any([thread.name == "NetworkThread" for thread in threading.enumerate()])
+
+def network_thread_join(timeout=10):
+    """Wait timeout seconds for the network thread to terminate.
+
+    Throw if the network thread doesn't terminate in timeout seconds."""
+    network_threads = [thread for thread in threading.enumerate() if thread.name == "NetworkThread"]
+    assert len(network_threads) <= 1
+    for thread in network_threads:
+        thread.join(timeout)
+        assert not thread.is_alive()
diff --git a/test/functional/test_framework/netutil.py b/test/functional/test_framework/netutil.py
index e5d415788f..96fe283347 100644
--- a/test/functional/test_framework/netutil.py
+++ b/test/functional/test_framework/netutil.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2014-2016 The Bitcoin Core developers
+# Copyright (c) 2014-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Linux network utilities.
diff --git a/test/functional/test_framework/script.py b/test/functional/test_framework/script.py
index a4c046bd3d..dae8a4e569 100644
--- a/test/functional/test_framework/script.py
+++ b/test/functional/test_framework/script.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2015-2016 The Bitcoin Core developers
+# Copyright (c) 2015-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Functionality to build scripts, as well as SignatureHash().
@@ -641,7 +641,7 @@ def SignatureHash(script, txTo, inIdx, hashtype):
         txtmp.vin = []
         txtmp.vin.append(tmp)
 
-    s = txtmp.serialize()
+    s = txtmp.serialize_without_witness()
     s += struct.pack(b"<I", hashtype)
 
     hash = hash256(s)
diff --git a/test/functional/test_framework/siphash.py b/test/functional/test_framework/siphash.py
index f68ecad36b..6ffc982cea 100644
--- a/test/functional/test_framework/siphash.py
+++ b/test/functional/test_framework/siphash.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2016 The Bitcoin Core developers
+# Copyright (c) 2016-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Specialized SipHash-2-4 implementations.
diff --git a/test/functional/test_framework/socks5.py b/test/functional/test_framework/socks5.py
index 7b40c47fbf..4721809a3b 100644
--- a/test/functional/test_framework/socks5.py
+++ b/test/functional/test_framework/socks5.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2015-2016 The Bitcoin Core developers
+# Copyright (c) 2015-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Dummy Socks5 server for testing."""
diff --git a/test/functional/test_framework/test_framework.py b/test/functional/test_framework/test_framework.py
index 8df50474f3..f8d66def64 100755
--- a/test/functional/test_framework/test_framework.py
+++ b/test/functional/test_framework/test_framework.py
@@ -1,10 +1,9 @@
 #!/usr/bin/env python3
-# Copyright (c) 2014-2016 The Bitcoin Core developers
+# Copyright (c) 2014-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Base class for RPC testing."""
 
-from collections import deque
 from enum import Enum
 import logging
 import optparse
@@ -14,7 +13,6 @@ import shutil
 import sys
 import tempfile
 import time
-import traceback
 
 from .authproxy import JSONRPCException
 from . import coverage
@@ -64,6 +62,7 @@ class BitcoinTestFramework():
         self.setup_clean_chain = False
         self.nodes = []
         self.mocktime = 0
+        self.supports_cli = False
         self.set_test_params()
 
         assert hasattr(self, "num_nodes"), "Test must set self.num_nodes in set_test_params()"
@@ -93,6 +92,8 @@ class BitcoinTestFramework():
                           help="Location of the test framework config file")
         parser.add_option("--pdbonfailure", dest="pdbonfailure", default=False, action="store_true",
                           help="Attach a python debugger if test fails")
+        parser.add_option("--usecli", dest="usecli", default=False, action="store_true",
+                          help="use bitcoin-cli instead of RPC for all commands")
         self.add_options(parser)
         (self.options, self.args) = parser.parse_args()
 
@@ -115,6 +116,8 @@ class BitcoinTestFramework():
         success = TestStatus.FAILED
 
         try:
+            if self.options.usecli and not self.supports_cli:
+                raise SkipTest("--usecli specified but test does not support using CLI")
             self.setup_chain()
             self.setup_network()
             self.run_test()
@@ -149,32 +152,19 @@ class BitcoinTestFramework():
             shutil.rmtree(self.options.tmpdir)
         else:
             self.log.warning("Not cleaning up dir %s" % self.options.tmpdir)
-            if os.getenv("PYTHON_DEBUG", ""):
-                # Dump the end of the debug logs, to aid in debugging rare
-                # travis failures.
-                import glob
-                filenames = [self.options.tmpdir + "/test_framework.log"]
-                filenames += glob.glob(self.options.tmpdir + "/node*/regtest/debug.log")
-                MAX_LINES_TO_PRINT = 1000
-                for fn in filenames:
-                    try:
-                        with open(fn, 'r') as f:
-                            print("From", fn, ":")
-                            print("".join(deque(f, MAX_LINES_TO_PRINT)))
-                    except OSError:
-                        print("Opening file %s failed." % fn)
-                        traceback.print_exc()
 
         if success == TestStatus.PASSED:
             self.log.info("Tests successful")
-            sys.exit(TEST_EXIT_PASSED)
+            exit_code = TEST_EXIT_PASSED
         elif success == TestStatus.SKIPPED:
             self.log.info("Test skipped")
-            sys.exit(TEST_EXIT_SKIPPED)
+            exit_code = TEST_EXIT_SKIPPED
         else:
             self.log.error("Test failed. Test logging available at %s/test_framework.log", self.options.tmpdir)
-            logging.shutdown()
-            sys.exit(TEST_EXIT_FAILED)
+            self.log.error("Hint: Call {} '{}' to consolidate all logs".format(os.path.normpath(os.path.dirname(os.path.realpath(__file__)) + "/../combine_logs.py"), self.options.tmpdir))
+            exit_code = TEST_EXIT_FAILED
+        logging.shutdown()
+        sys.exit(exit_code)
 
     # Methods to override in subclass test scripts.
     def set_test_params(self):
@@ -228,20 +218,20 @@ class BitcoinTestFramework():
         assert_equal(len(extra_args), num_nodes)
         assert_equal(len(binary), num_nodes)
         for i in range(num_nodes):
-            self.nodes.append(TestNode(i, self.options.tmpdir, extra_args[i], rpchost, timewait=timewait, binary=binary[i], stderr=None, mocktime=self.mocktime, coverage_dir=self.options.coveragedir))
+            self.nodes.append(TestNode(i, self.options.tmpdir, extra_args[i], rpchost, timewait=timewait, binary=binary[i], stderr=None, mocktime=self.mocktime, coverage_dir=self.options.coveragedir, use_cli=self.options.usecli))
 
-    def start_node(self, i, extra_args=None, stderr=None):
+    def start_node(self, i, *args, **kwargs):
         """Start a bitcoind"""
 
         node = self.nodes[i]
 
-        node.start(extra_args, stderr)
+        node.start(*args, **kwargs)
         node.wait_for_rpc_connection()
 
         if self.options.coveragedir is not None:
             coverage.write_all_rpc_commands(self.options.coveragedir, node.rpc)
 
-    def start_nodes(self, extra_args=None):
+    def start_nodes(self, extra_args=None, *args, **kwargs):
         """Start multiple bitcoinds"""
 
         if extra_args is None:
@@ -249,7 +239,7 @@ class BitcoinTestFramework():
         assert_equal(len(extra_args), self.num_nodes)
         try:
             for i, node in enumerate(self.nodes):
-                node.start(extra_args[i])
+                node.start(extra_args[i], *args, **kwargs)
             for node in self.nodes:
                 node.wait_for_rpc_connection()
         except:
@@ -281,10 +271,10 @@ class BitcoinTestFramework():
         self.stop_node(i)
         self.start_node(i, extra_args)
 
-    def assert_start_raises_init_error(self, i, extra_args=None, expected_msg=None):
+    def assert_start_raises_init_error(self, i, extra_args=None, expected_msg=None, *args, **kwargs):
         with tempfile.SpooledTemporaryFile(max_size=2**16) as log_stderr:
             try:
-                self.start_node(i, extra_args, stderr=log_stderr)
+                self.start_node(i, extra_args, stderr=log_stderr, *args, **kwargs)
                 self.stop_node(i)
             except Exception as e:
                 assert 'bitcoind exited' in str(e)  # node must have shutdown
@@ -432,7 +422,7 @@ class BitcoinTestFramework():
             self.disable_mocktime()
             for i in range(MAX_NODES):
                 os.remove(log_filename(self.options.cachedir, i, "debug.log"))
-                os.remove(log_filename(self.options.cachedir, i, "db.log"))
+                os.remove(log_filename(self.options.cachedir, i, "wallets/db.log"))
                 os.remove(log_filename(self.options.cachedir, i, "peers.dat"))
                 os.remove(log_filename(self.options.cachedir, i, "fee_estimates.dat"))
 
diff --git a/test/functional/test_framework/test_node.py b/test/functional/test_framework/test_node.py
index 34b458482a..1054e6d028 100755
--- a/test/functional/test_framework/test_node.py
+++ b/test/functional/test_framework/test_node.py
@@ -10,11 +10,11 @@ import http.client
 import json
 import logging
 import os
+import re
 import subprocess
 import time
 
 from .authproxy import JSONRPCException
-from .mininode import NodeConn
 from .util import (
     assert_equal,
     get_rpc_proxy,
@@ -23,6 +23,9 @@ from .util import (
     p2p_port,
 )
 
+# For Python 3.4 compatibility
+JSONDecodeError = getattr(json, "JSONDecodeError", ValueError)
+
 BITCOIND_PROC_WAIT_TIMEOUT = 60
 
 class TestNode():
@@ -39,7 +42,7 @@ class TestNode():
     To make things easier for the test writer, any unrecognised messages will
     be dispatched to the RPC connection."""
 
-    def __init__(self, i, dirname, extra_args, rpchost, timewait, binary, stderr, mocktime, coverage_dir):
+    def __init__(self, i, dirname, extra_args, rpchost, timewait, binary, stderr, mocktime, coverage_dir, use_cli=False):
         self.index = i
         self.datadir = os.path.join(dirname, "node" + str(i))
         self.rpchost = rpchost
@@ -59,6 +62,7 @@ class TestNode():
         self.args = [self.binary, "-datadir=" + self.datadir, "-server", "-keypool=1", "-discover=0", "-rest", "-logtimemicros", "-debug", "-debugexclude=libevent", "-debugexclude=leveldb", "-mocktime=" + str(mocktime), "-uacomment=testnode%d" % i]
 
         self.cli = TestNodeCLI(os.getenv("BITCOINCLI", "bitcoin-cli"), self.datadir)
+        self.use_cli = use_cli
 
         self.running = False
         self.process = None
@@ -70,17 +74,20 @@ class TestNode():
         self.p2ps = []
 
     def __getattr__(self, name):
-        """Dispatches any unrecognised messages to the RPC connection."""
-        assert self.rpc_connected and self.rpc is not None, "Error: no RPC connection"
-        return getattr(self.rpc, name)
+        """Dispatches any unrecognised messages to the RPC connection or a CLI instance."""
+        if self.use_cli:
+            return getattr(self.cli, name)
+        else:
+            assert self.rpc_connected and self.rpc is not None, "Error: no RPC connection"
+            return getattr(self.rpc, name)
 
-    def start(self, extra_args=None, stderr=None):
+    def start(self, extra_args=None, stderr=None, *args, **kwargs):
         """Start the node."""
         if extra_args is None:
             extra_args = self.extra_args
         if stderr is None:
             stderr = self.stderr
-        self.process = subprocess.Popen(self.args + extra_args, stderr=stderr)
+        self.process = subprocess.Popen(self.args + extra_args, stderr=stderr, *args, **kwargs)
         self.running = True
         self.log.debug("bitcoind started, waiting for RPC to come up")
 
@@ -111,10 +118,13 @@ class TestNode():
         raise AssertionError("Unable to connect to bitcoind")
 
     def get_wallet_rpc(self, wallet_name):
-        assert self.rpc_connected
-        assert self.rpc
-        wallet_path = "wallet/%s" % wallet_name
-        return self.rpc / wallet_path
+        if self.use_cli:
+            return self.cli("-rpcwallet={}".format(wallet_name))
+        else:
+            assert self.rpc_connected
+            assert self.rpc
+            wallet_path = "wallet/%s" % wallet_name
+            return self.rpc / wallet_path
 
     def stop_node(self):
         """Stop the node."""
@@ -158,7 +168,7 @@ class TestNode():
         self.encryptwallet(passphrase)
         self.wait_until_stopped()
 
-    def add_p2p_connection(self, p2p_conn, **kwargs):
+    def add_p2p_connection(self, p2p_conn, *args, **kwargs):
         """Add a p2p connection to the node.
 
         This method adds the p2p connection to the self.p2ps list and also
@@ -167,9 +177,9 @@ class TestNode():
             kwargs['dstport'] = p2p_port(self.index)
         if 'dstaddr' not in kwargs:
             kwargs['dstaddr'] = '127.0.0.1'
+
+        p2p_conn.peer_connect(*args, **kwargs)
         self.p2ps.append(p2p_conn)
-        kwargs.update({'callback': p2p_conn})
-        p2p_conn.add_connection(NodeConn(**kwargs))
 
         return p2p_conn
 
@@ -185,46 +195,73 @@ class TestNode():
     def disconnect_p2ps(self):
         """Close all p2p connections to the node."""
         for p in self.p2ps:
-            # Connection could have already been closed by other end.
-            if p.connection is not None:
-                p.connection.disconnect_node()
-        self.p2ps = []
+            p.peer_disconnect()
+        del self.p2ps[:]
+
+class TestNodeCLIAttr:
+    def __init__(self, cli, command):
+        self.cli = cli
+        self.command = command
+
+    def __call__(self, *args, **kwargs):
+        return self.cli.send_cli(self.command, *args, **kwargs)
 
+    def get_request(self, *args, **kwargs):
+        return lambda: self(*args, **kwargs)
 
 class TestNodeCLI():
     """Interface to bitcoin-cli for an individual node"""
 
     def __init__(self, binary, datadir):
-        self.args = []
+        self.options = []
         self.binary = binary
         self.datadir = datadir
         self.input = None
+        self.log = logging.getLogger('TestFramework.bitcoincli')
 
-    def __call__(self, *args, input=None):
-        # TestNodeCLI is callable with bitcoin-cli command-line args
-        self.args = [str(arg) for arg in args]
-        self.input = input
-        return self
+    def __call__(self, *options, input=None):
+        # TestNodeCLI is callable with bitcoin-cli command-line options
+        cli = TestNodeCLI(self.binary, self.datadir)
+        cli.options = [str(o) for o in options]
+        cli.input = input
+        return cli
 
     def __getattr__(self, command):
-        def dispatcher(*args, **kwargs):
-            return self.send_cli(command, *args, **kwargs)
-        return dispatcher
-
-    def send_cli(self, command, *args, **kwargs):
+        return TestNodeCLIAttr(self, command)
+
+    def batch(self, requests):
+        results = []
+        for request in requests:
+           try:
+               results.append(dict(result=request()))
+           except JSONRPCException as e:
+               results.append(dict(error=e))
+        return results
+
+    def send_cli(self, command=None, *args, **kwargs):
         """Run bitcoin-cli command. Deserializes returned string as python object."""
 
         pos_args = [str(arg) for arg in args]
         named_args = [str(key) + "=" + str(value) for (key, value) in kwargs.items()]
         assert not (pos_args and named_args), "Cannot use positional arguments and named arguments in the same bitcoin-cli call"
-        p_args = [self.binary, "-datadir=" + self.datadir] + self.args
+        p_args = [self.binary, "-datadir=" + self.datadir] + self.options
         if named_args:
             p_args += ["-named"]
-        p_args += [command] + pos_args + named_args
+        if command is not None:
+            p_args += [command]
+        p_args += pos_args + named_args
+        self.log.debug("Running bitcoin-cli command: %s" % command)
         process = subprocess.Popen(p_args, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE, universal_newlines=True)
         cli_stdout, cli_stderr = process.communicate(input=self.input)
         returncode = process.poll()
         if returncode:
+            match = re.match(r'error code: ([-0-9]+)\nerror message:\n(.*)', cli_stderr)
+            if match:
+                code, message = match.groups()
+                raise JSONRPCException(dict(code=int(code), message=message))
             # Ignore cli_stdout, raise with cli_stderr
             raise subprocess.CalledProcessError(returncode, self.binary, output=cli_stderr)
-        return json.loads(cli_stdout, parse_float=decimal.Decimal)
+        try:
+            return json.loads(cli_stdout, parse_float=decimal.Decimal)
+        except JSONDecodeError:
+            return cli_stdout.rstrip("\n")
diff --git a/test/functional/test_framework/util.py b/test/functional/test_framework/util.py
index 102c903018..7fdc171332 100644
--- a/test/functional/test_framework/util.py
+++ b/test/functional/test_framework/util.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2014-2016 The Bitcoin Core developers
+# Copyright (c) 2014-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Helpful routines for regression testing."""
@@ -390,7 +390,7 @@ def sync_chain(rpc_connections, *, wait=1, timeout=60):
         timeout -= wait
     raise AssertionError("Chain sync failed: Best block hashes don't match")
 
-def sync_mempools(rpc_connections, *, wait=1, timeout=60):
+def sync_mempools(rpc_connections, *, wait=1, timeout=60, flush_scheduler=True):
     """
     Wait until everybody has the same transactions in their memory
     pools
@@ -402,6 +402,9 @@ def sync_mempools(rpc_connections, *, wait=1, timeout=60):
             if set(rpc_connections[i].getrawmempool()) == pool:
                 num_match = num_match + 1
         if num_match == len(rpc_connections):
+            if flush_scheduler:
+                for r in rpc_connections:
+                    r.syncwithvalidationinterfacequeue()
             return
         time.sleep(wait)
         timeout -= wait
diff --git a/test/functional/test_runner.py b/test/functional/test_runner.py
index ca36426a0a..98944685e1 100755
--- a/test/functional/test_runner.py
+++ b/test/functional/test_runner.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2014-2016 The Bitcoin Core developers
+# Copyright (c) 2014-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Run regression test suite.
@@ -15,6 +15,7 @@ For a description of arguments recognized by test scripts, see
 """
 
 import argparse
+from collections import deque
 import configparser
 import datetime
 import os
@@ -54,106 +55,114 @@ TEST_EXIT_SKIPPED = 77
 BASE_SCRIPTS= [
     # Scripts that are run by the travis build process.
     # Longest test should go first, to favor running tests in parallel
-    'wallet-hd.py',
-    'walletbackup.py',
+    'wallet_hd.py',
+    'wallet_backup.py',
     # vv Tests less than 5m vv
-    'p2p-fullblocktest.py',
-    'fundrawtransaction.py',
-    'p2p-compactblocks.py',
-    'segwit.py',
+    'feature_block.py',
+    'rpc_fundrawtransaction.py',
+    'p2p_compactblocks.py',
+    'feature_segwit.py',
     # vv Tests less than 2m vv
-    'wallet.py',
-    'wallet-accounts.py',
-    'p2p-segwit.py',
-    'wallet-dump.py',
-    'listtransactions.py',
+    'wallet_basic.py',
+    'wallet_accounts.py',
+    'p2p_segwit.py',
+    'wallet_dump.py',
+    'rpc_listtransactions.py',
     # vv Tests less than 60s vv
-    'sendheaders.py',
-    'zapwallettxes.py',
-    'importmulti.py',
+    'p2p_sendheaders.py',
+    'wallet_zapwallettxes.py',
+    'wallet_importmulti.py',
     'mempool_limit.py',
-    'merkle_blocks.py',
-    'receivedby.py',
-    'abandonconflict.py',
-    'bip68-112-113-p2p.py',
-    'rawtransactions.py',
-    'reindex.py',
+    'rpc_txoutproof.py',
+    'wallet_listreceivedby.py',
+    'wallet_abandonconflict.py',
+    'feature_csv_activation.py',
+    'rpc_rawtransaction.py',
+    'wallet_address_types.py',
+    'feature_reindex.py',
     # vv Tests less than 30s vv
-    'keypool-topup.py',
-    'zmq_test.py',
-    'bitcoin_cli.py',
-    'mempool_resurrect_test.py',
-    'txn_doublespend.py --mineblock',
-    'txn_clone.py',
-    'getchaintips.py',
-    'rest.py',
-    'mempool_spendcoinbase.py',
+    'wallet_keypool_topup.py',
+    'interface_zmq.py',
+    'interface_bitcoin_cli.py',
+    'mempool_resurrect.py',
+    'wallet_txn_doublespend.py --mineblock',
+    'wallet_txn_clone.py',
+    'wallet_txn_clone.py --segwit',
+    'rpc_getchaintips.py',
+    'interface_rest.py',
+    'mempool_spend_coinbase.py',
     'mempool_reorg.py',
     'mempool_persist.py',
-    'multiwallet.py',
-    'httpbasics.py',
-    'multi_rpc.py',
-    'proxy_test.py',
-    'signrawtransactions.py',
-    'disconnect_ban.py',
-    'decodescript.py',
-    'blockchain.py',
-    'deprecated_rpc.py',
-    'disablewallet.py',
-    'net.py',
-    'keypool.py',
-    'p2p-mempool.py',
-    'prioritise_transaction.py',
-    'invalidblockrequest.py',
-    'invalidtxrequest.py',
-    'p2p-versionbits-warning.py',
-    'preciousblock.py',
-    'importprunedfunds.py',
-    'signmessages.py',
-    'nulldummy.py',
-    'import-rescan.py',
-    'mining.py',
-    'bumpfee.py',
-    'rpcnamedargs.py',
-    'listsinceblock.py',
-    'p2p-leaktests.py',
-    'wallet-encryption.py',
-    'bipdersig-p2p.py',
-    'bip65-cltv-p2p.py',
-    'uptime.py',
-    'resendwallettransactions.py',
-    'minchainwork.py',
-    'p2p-fingerprint.py',
-    'uacomment.py',
-    'p2p-acceptblock.py',
+    'wallet_multiwallet.py',
+    'wallet_multiwallet.py --usecli',
+    'interface_http.py',
+    'rpc_users.py',
+    'feature_proxy.py',
+    'rpc_signrawtransaction.py',
+    'p2p_disconnect_ban.py',
+    'rpc_decodescript.py',
+    'rpc_blockchain.py',
+    'rpc_deprecated.py',
+    'wallet_disable.py',
+    'rpc_net.py',
+    'wallet_keypool.py',
+    'p2p_mempool.py',
+    'mining_prioritisetransaction.py',
+    'p2p_invalid_block.py',
+    'p2p_invalid_tx.py',
+    'feature_versionbits_warning.py',
+    'rpc_preciousblock.py',
+    'wallet_importprunedfunds.py',
+    'rpc_signmessage.py',
+    'feature_nulldummy.py',
+    'wallet_import_rescan.py',
+    'mining_basic.py',
+    'wallet_bumpfee.py',
+    'rpc_named_arguments.py',
+    'wallet_listsinceblock.py',
+    'p2p_leak.py',
+    'wallet_encryption.py',
+    'feature_dersig.py',
+    'feature_cltv.py',
+    'rpc_uptime.py',
+    'wallet_resendwallettransactions.py',
+    'feature_minchainwork.py',
+    'p2p_fingerprint.py',
+    'feature_uacomment.py',
+    'p2p_unrequested_blocks.py',
+    'feature_logging.py',
+    'p2p_node_network_limited.py',
+    'feature_config_args.py',
+    # Don't append tests at the end to avoid merge conflicts
+    # Put them in a random line within the section that fits their approximate run-time
 ]
 
 EXTENDED_SCRIPTS = [
     # These tests are not run by the travis build process.
     # Longest test should go first, to favor running tests in parallel
-    'pruning.py',
+    'feature_pruning.py',
     # vv Tests less than 20m vv
-    'smartfees.py',
+    'feature_fee_estimation.py',
     # vv Tests less than 5m vv
-    'maxuploadtarget.py',
+    'feature_maxuploadtarget.py',
     'mempool_packages.py',
-    'dbcrash.py',
+    'feature_dbcrash.py',
     # vv Tests less than 2m vv
-    'bip68-sequence.py',
-    'getblocktemplate_longpoll.py',
-    'p2p-timeouts.py',
+    'feature_bip68_sequence.py',
+    'mining_getblocktemplate_longpoll.py',
+    'p2p_timeouts.py',
     # vv Tests less than 60s vv
-    'bip9-softforks.py',
-    'p2p-feefilter.py',
-    'rpcbind_test.py',
+    'feature_bip9_softforks.py',
+    'p2p_feefilter.py',
+    'rpc_bind.py',
     # vv Tests less than 30s vv
-    'assumevalid.py',
+    'feature_assumevalid.py',
     'example_test.py',
-    'txn_doublespend.py',
-    'txn_clone.py --mineblock',
-    'notifications.py',
-    'invalidateblock.py',
-    'replace-by-fee.py',
+    'wallet_txn_doublespend.py',
+    'wallet_txn_clone.py --mineblock',
+    'feature_notifications.py',
+    'rpc_invalidateblock.py',
+    'feature_rbf.py',
 ]
 
 # Place EXTENDED_SCRIPTS first since it has the 3 longest running tests
@@ -174,6 +183,7 @@ def main():
                                      epilog='''
     Help text and arguments for individual test script:''',
                                      formatter_class=argparse.RawTextHelpFormatter)
+    parser.add_argument('--combinedlogslen', '-c', type=int, default=0, help='print a combined log (of length n lines) from all test nodes and test framework to the console on failure.')
     parser.add_argument('--coverage', action='store_true', help='generate a basic coverage report for the RPC interface')
     parser.add_argument('--exclude', '-x', help='specify a comma-separated-list of scripts to exclude.')
     parser.add_argument('--extended', action='store_true', help='run the extended test suite in addition to the basic tests')
@@ -262,13 +272,14 @@ def main():
         sys.exit(0)
 
     check_script_list(config["environment"]["SRCDIR"])
+    check_script_prefixes()
 
     if not args.keepcache:
         shutil.rmtree("%s/test/cache" % config["environment"]["BUILDDIR"], ignore_errors=True)
 
-    run_tests(test_list, config["environment"]["SRCDIR"], config["environment"]["BUILDDIR"], config["environment"]["EXEEXT"], tmpdir, args.jobs, args.coverage, passon_args)
+    run_tests(test_list, config["environment"]["SRCDIR"], config["environment"]["BUILDDIR"], config["environment"]["EXEEXT"], tmpdir, args.jobs, args.coverage, passon_args, args.combinedlogslen)
 
-def run_tests(test_list, src_dir, build_dir, exeext, tmpdir, jobs=1, enable_coverage=False, args=[]):
+def run_tests(test_list, src_dir, build_dir, exeext, tmpdir, jobs=1, enable_coverage=False, args=[], combined_logs_len=0):
     # Warn if bitcoind is already running (unix only)
     try:
         if subprocess.check_output(["pidof", "bitcoind"]) is not None:
@@ -300,7 +311,11 @@ def run_tests(test_list, src_dir, build_dir, exeext, tmpdir, jobs=1, enable_cove
 
     if len(test_list) > 1 and jobs > 1:
         # Populate cache
-        subprocess.check_output([tests_dir + 'create_cache.py'] + flags + ["--tmpdir=%s/cache" % tmpdir])
+        try:
+            subprocess.check_output([tests_dir + 'create_cache.py'] + flags + ["--tmpdir=%s/cache" % tmpdir])
+        except subprocess.CalledProcessError as e:
+            sys.stdout.buffer.write(e.output)
+            raise
 
     #Run Tests
     job_queue = TestHandler(jobs, tests_dir, tmpdir, test_list, flags)
@@ -310,7 +325,7 @@ def run_tests(test_list, src_dir, build_dir, exeext, tmpdir, jobs=1, enable_cove
     max_len_name = len(max(test_list, key=len))
 
     for _ in range(len(test_list)):
-        test_result, stdout, stderr = job_queue.get_next()
+        test_result, testdir, stdout, stderr = job_queue.get_next()
         test_results.append(test_result)
 
         if test_result.status == "Passed":
@@ -321,6 +336,14 @@ def run_tests(test_list, src_dir, build_dir, exeext, tmpdir, jobs=1, enable_cove
             print("\n%s%s%s failed, Duration: %s s\n" % (BOLD[1], test_result.name, BOLD[0], test_result.time))
             print(BOLD[1] + 'stdout:\n' + BOLD[0] + stdout + '\n')
             print(BOLD[1] + 'stderr:\n' + BOLD[0] + stderr + '\n')
+            if combined_logs_len and os.path.isdir(testdir):
+                # Print the final `combinedlogslen` lines of the combined logs
+                print('{}Combine the logs and print the last {} lines ...{}'.format(BOLD[1], combined_logs_len, BOLD[0]))
+                print('\n============')
+                print('{}Combined log for {}:{}'.format(BOLD[1], testdir, BOLD[0]))
+                print('============\n')
+                combined_logs, _ = subprocess.Popen([os.path.join(tests_dir, 'combine_logs.py'), '-c', testdir], universal_newlines=True, stdout=subprocess.PIPE).communicate()
+                print("\n".join(deque(combined_logs.splitlines(), combined_logs_len)))
 
     print_results(test_results, max_len_name, (int(time.time() - time0)))
 
@@ -385,13 +408,15 @@ class TestHandler:
             log_stdout = tempfile.SpooledTemporaryFile(max_size=2**16)
             log_stderr = tempfile.SpooledTemporaryFile(max_size=2**16)
             test_argv = t.split()
-            tmpdir = ["--tmpdir=%s/%s_%s" % (self.tmpdir, re.sub(".py$", "", test_argv[0]), portseed)]
+            testdir = "{}/{}_{}".format(self.tmpdir, re.sub(".py$", "", test_argv[0]), portseed)
+            tmpdir_arg = ["--tmpdir={}".format(testdir)]
             self.jobs.append((t,
                               time.time(),
-                              subprocess.Popen([self.tests_dir + test_argv[0]] + test_argv[1:] + self.flags + portseed_arg + tmpdir,
+                              subprocess.Popen([self.tests_dir + test_argv[0]] + test_argv[1:] + self.flags + portseed_arg + tmpdir_arg,
                                                universal_newlines=True,
                                                stdout=log_stdout,
                                                stderr=log_stderr),
+                              testdir,
                               log_stdout,
                               log_stderr))
         if not self.jobs:
@@ -400,7 +425,7 @@ class TestHandler:
             # Return first proc that finishes
             time.sleep(.5)
             for j in self.jobs:
-                (name, time0, proc, log_out, log_err) = j
+                (name, time0, proc, testdir, log_out, log_err) = j
                 if os.getenv('TRAVIS') == 'true' and int(time.time() - time0) > 20 * 60:
                     # In travis, timeout individual tests after 20 minutes (to stop tests hanging and not
                     # providing useful output.
@@ -418,7 +443,7 @@ class TestHandler:
                     self.num_running -= 1
                     self.jobs.remove(j)
 
-                    return TestResult(name, status, int(time.time() - time0)), stdout, stderr
+                    return TestResult(name, status, int(time.time() - time0)), testdir, stdout, stderr
             print('.', end='', flush=True)
 
 class TestResult():
@@ -446,6 +471,24 @@ class TestResult():
         return self.status != "Failed"
 
 
+def check_script_prefixes():
+    """Check that at most a handful of the
+       test scripts don't start with one of the allowed name prefixes."""
+
+    # LEEWAY is provided as a transition measure, so that pull-requests
+    # that introduce new tests that don't conform with the naming
+    # convention don't immediately cause the tests to fail.
+    LEEWAY = 10
+
+    good_prefixes_re = re.compile("(example|feature|interface|mempool|mining|p2p|rpc|wallet)_")
+    bad_script_names = [script for script in ALL_SCRIPTS if good_prefixes_re.match(script) is None]
+
+    if len(bad_script_names) > 0:
+        print("INFO: %d tests not meeting naming conventions:" % (len(bad_script_names)))
+        print("  %s" % ("\n  ".join(sorted(bad_script_names))))
+    assert len(bad_script_names) <= LEEWAY, "Too many tests not following naming convention! (%d found, maximum: %d)" % (len(bad_script_names), LEEWAY)
+
+
 def check_script_list(src_dir):
     """Check scripts directory.
 
diff --git a/test/functional/abandonconflict.py b/test/functional/wallet_abandonconflict.py
index e8dbc86469..14964438af 100755
--- a/test/functional/abandonconflict.py
+++ b/test/functional/wallet_abandonconflict.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2014-2016 The Bitcoin Core developers
+# Copyright (c) 2014-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test the abandontransaction RPC.
diff --git a/test/functional/wallet-accounts.py b/test/functional/wallet_accounts.py
index bc1efaee15..ecd1cfc82b 100755
--- a/test/functional/wallet-accounts.py
+++ b/test/functional/wallet_accounts.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2016 The Bitcoin Core developers
+# Copyright (c) 2016-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test account RPCs.
@@ -126,7 +126,7 @@ class WalletAccountsTest(BitcoinTestFramework):
             addresses = []
             for x in range(10):
                 addresses.append(node.getnewaddress())
-            multisig_address = node.addmultisigaddress(5, addresses, account.name)
+            multisig_address = node.addmultisigaddress(5, addresses, account.name)['address']
             account.add_address(multisig_address)
             account.verify(node)
             node.sendfrom("", multisig_address, 50)
diff --git a/test/functional/wallet_address_types.py b/test/functional/wallet_address_types.py
new file mode 100755
index 0000000000..38a3425214
--- /dev/null
+++ b/test/functional/wallet_address_types.py
@@ -0,0 +1,294 @@
+#!/usr/bin/env python3
+# Copyright (c) 2017 The Bitcoin Core developers
+# Distributed under the MIT software license, see the accompanying
+# file COPYING or http://www.opensource.org/licenses/mit-license.php.
+"""Test that the wallet can send and receive using all combinations of address types.
+
+There are 5 nodes-under-test:
+    - node0 uses legacy addresses
+    - node1 uses p2sh/segwit addresses
+    - node2 uses p2sh/segwit addresses and bech32 addresses for change
+    - node3 uses bech32 addresses
+    - node4 uses a p2sh/segwit addresses for change
+
+node5 exists to generate new blocks.
+
+## Multisig address test
+
+Test that adding a multisig address with:
+    - an uncompressed pubkey always gives a legacy address
+    - only compressed pubkeys gives the an `-addresstype` address
+
+## Sending to address types test
+
+A series of tests, iterating over node0-node4. In each iteration of the test, one node sends:
+    - 10/101th of its balance to itself (using getrawchangeaddress for single key addresses)
+    - 20/101th to the next node
+    - 30/101th to the node after that
+    - 40/101th to the remaining node
+    - 1/101th remains as fee+change
+
+Iterate over each node for single key addresses, and then over each node for
+multisig addresses.
+
+Repeat test, but with explicit address_type parameters passed to getnewaddress
+and getrawchangeaddress:
+    - node0 and node3 send to p2sh.
+    - node1 sends to bech32.
+    - node2 sends to legacy.
+
+As every node sends coins after receiving, this also
+verifies that spending coins sent to all these address types works.
+
+## Change type test
+
+Test that the nodes generate the correct change address type:
+    - node0 always uses a legacy change address.
+    - node1 uses a bech32 addresses for change if any destination address is bech32.
+    - node2 always uses a bech32 address for change
+    - node3 always uses a bech32 address for change
+    - node4 always uses p2sh/segwit output for change.
+"""
+
+from decimal import Decimal
+import itertools
+
+from test_framework.test_framework import BitcoinTestFramework
+from test_framework.util import (
+    assert_equal,
+    assert_greater_than,
+    assert_raises_rpc_error,
+    connect_nodes_bi,
+    sync_blocks,
+    sync_mempools,
+)
+
+class AddressTypeTest(BitcoinTestFramework):
+    def set_test_params(self):
+        self.num_nodes = 6
+        self.extra_args = [
+            ["-addresstype=legacy"],
+            ["-addresstype=p2sh-segwit"],
+            ["-addresstype=p2sh-segwit", "-changetype=bech32"],
+            ["-addresstype=bech32"],
+            ["-changetype=p2sh-segwit"],
+            []
+        ]
+
+    def setup_network(self):
+        self.setup_nodes()
+
+        # Fully mesh-connect nodes for faster mempool sync
+        for i, j in itertools.product(range(self.num_nodes), repeat=2):
+            if i > j:
+                connect_nodes_bi(self.nodes, i, j)
+        self.sync_all()
+
+    def get_balances(self, confirmed=True):
+        """Return a list of confirmed or unconfirmed balances."""
+        if confirmed:
+            return [self.nodes[i].getbalance() for i in range(4)]
+        else:
+            return [self.nodes[i].getunconfirmedbalance() for i in range(4)]
+
+    def test_address(self, node, address, multisig, typ):
+        """Run sanity checks on an address."""
+        info = self.nodes[node].validateaddress(address)
+        assert(info['isvalid'])
+        if not multisig and typ == 'legacy':
+            # P2PKH
+            assert(not info['isscript'])
+            assert(not info['iswitness'])
+            assert('pubkey' in info)
+        elif not multisig and typ == 'p2sh-segwit':
+            # P2SH-P2WPKH
+            assert(info['isscript'])
+            assert(not info['iswitness'])
+            assert_equal(info['script'], 'witness_v0_keyhash')
+            assert('pubkey' in info)
+        elif not multisig and typ == 'bech32':
+            # P2WPKH
+            assert(not info['isscript'])
+            assert(info['iswitness'])
+            assert_equal(info['witness_version'], 0)
+            assert_equal(len(info['witness_program']), 40)
+            assert('pubkey' in info)
+        elif typ == 'legacy':
+            # P2SH-multisig
+            assert(info['isscript'])
+            assert_equal(info['script'], 'multisig')
+            assert(not info['iswitness'])
+            assert('pubkeys' in info)
+        elif typ == 'p2sh-segwit':
+            # P2SH-P2WSH-multisig
+            assert(info['isscript'])
+            assert_equal(info['script'], 'witness_v0_scripthash')
+            assert(not info['iswitness'])
+            assert(info['embedded']['isscript'])
+            assert_equal(info['embedded']['script'], 'multisig')
+            assert(info['embedded']['iswitness'])
+            assert_equal(info['embedded']['witness_version'], 0)
+            assert_equal(len(info['embedded']['witness_program']), 64)
+            assert('pubkeys' in info['embedded'])
+        elif typ == 'bech32':
+            # P2WSH-multisig
+            assert(info['isscript'])
+            assert_equal(info['script'], 'multisig')
+            assert(info['iswitness'])
+            assert_equal(info['witness_version'], 0)
+            assert_equal(len(info['witness_program']), 64)
+            assert('pubkeys' in info)
+        else:
+            # Unknown type
+            assert(False)
+
+    def test_change_output_type(self, node_sender, destinations, expected_type):
+        txid = self.nodes[node_sender].sendmany(fromaccount="", amounts=dict.fromkeys(destinations, 0.001))
+        raw_tx = self.nodes[node_sender].getrawtransaction(txid)
+        tx = self.nodes[node_sender].decoderawtransaction(raw_tx)
+
+        # Make sure the transaction has change:
+        assert_equal(len(tx["vout"]), len(destinations) + 1)
+
+        # Make sure the destinations are included, and remove them:
+        output_addresses = [vout['scriptPubKey']['addresses'][0] for vout in tx["vout"]]
+        change_addresses = [d for d in output_addresses if d not in destinations]
+        assert_equal(len(change_addresses), 1)
+
+        self.log.debug("Check if change address " + change_addresses[0] + " is " + expected_type)
+        self.test_address(node_sender, change_addresses[0], multisig=False, typ=expected_type)
+
+    def run_test(self):
+        # Mine 101 blocks on node5 to bring nodes out of IBD and make sure that
+        # no coinbases are maturing for the nodes-under-test during the test
+        self.nodes[5].generate(101)
+        sync_blocks(self.nodes)
+
+        uncompressed_1 = "0496b538e853519c726a2c91e61ec11600ae1390813a627c66fb8be7947be63c52da7589379515d4e0a604f8141781e62294721166bf621e73a82cbf2342c858ee"
+        uncompressed_2 = "047211a824f55b505228e4c3d5194c1fcfaa15a456abdf37f9b9d97a4040afc073dee6c89064984f03385237d92167c13e236446b417ab79a0fcae412ae3316b77"
+        compressed_1 = "0296b538e853519c726a2c91e61ec11600ae1390813a627c66fb8be7947be63c52"
+        compressed_2 = "037211a824f55b505228e4c3d5194c1fcfaa15a456abdf37f9b9d97a4040afc073"
+
+        # addmultisigaddress with at least 1 uncompressed key should return a legacy address.
+        for node in range(4):
+            self.test_address(node, self.nodes[node].addmultisigaddress(2, [uncompressed_1, uncompressed_2])['address'], True, 'legacy')
+            self.test_address(node, self.nodes[node].addmultisigaddress(2, [compressed_1, uncompressed_2])['address'], True, 'legacy')
+            self.test_address(node, self.nodes[node].addmultisigaddress(2, [uncompressed_1, compressed_2])['address'], True, 'legacy')
+        # addmultisigaddress with all compressed keys should return the appropriate address type (even when the keys are not ours).
+        self.test_address(0, self.nodes[0].addmultisigaddress(2, [compressed_1, compressed_2])['address'], True, 'legacy')
+        self.test_address(1, self.nodes[1].addmultisigaddress(2, [compressed_1, compressed_2])['address'], True, 'p2sh-segwit')
+        self.test_address(2, self.nodes[2].addmultisigaddress(2, [compressed_1, compressed_2])['address'], True, 'p2sh-segwit')
+        self.test_address(3, self.nodes[3].addmultisigaddress(2, [compressed_1, compressed_2])['address'], True, 'bech32')
+
+        for explicit_type, multisig, from_node in itertools.product([False, True], [False, True], range(4)):
+            address_type = None
+            if explicit_type and not multisig:
+                if from_node == 1:
+                    address_type = 'bech32'
+                elif from_node == 0 or from_node == 3:
+                    address_type = 'p2sh-segwit'
+                else:
+                    address_type = 'legacy'
+            self.log.info("Sending from node {} ({}) with{} multisig using {}".format(from_node, self.extra_args[from_node], "" if multisig else "out", "default" if address_type is None else address_type))
+            old_balances = self.get_balances()
+            self.log.debug("Old balances are {}".format(old_balances))
+            to_send = (old_balances[from_node] / 101).quantize(Decimal("0.00000001"))
+            sends = {}
+
+            self.log.debug("Prepare sends")
+            for n, to_node in enumerate(range(from_node, from_node + 4)):
+                to_node %= 4
+                change = False
+                if not multisig:
+                    if from_node == to_node:
+                        # When sending non-multisig to self, use getrawchangeaddress
+                        address = self.nodes[to_node].getrawchangeaddress(address_type=address_type)
+                        change = True
+                    else:
+                        address = self.nodes[to_node].getnewaddress(address_type=address_type)
+                else:
+                    addr1 = self.nodes[to_node].getnewaddress()
+                    addr2 = self.nodes[to_node].getnewaddress()
+                    address = self.nodes[to_node].addmultisigaddress(2, [addr1, addr2])['address']
+
+                # Do some sanity checking on the created address
+                if address_type is not None:
+                    typ = address_type
+                elif to_node == 0:
+                    typ = 'legacy'
+                elif to_node == 1 or (to_node == 2 and not change):
+                    typ = 'p2sh-segwit'
+                else:
+                    typ = 'bech32'
+                self.test_address(to_node, address, multisig, typ)
+
+                # Output entry
+                sends[address] = to_send * 10 * (1 + n)
+
+            self.log.debug("Sending: {}".format(sends))
+            self.nodes[from_node].sendmany("", sends)
+            sync_mempools(self.nodes)
+
+            unconf_balances = self.get_balances(False)
+            self.log.debug("Check unconfirmed balances: {}".format(unconf_balances))
+            assert_equal(unconf_balances[from_node], 0)
+            for n, to_node in enumerate(range(from_node + 1, from_node + 4)):
+                to_node %= 4
+                assert_equal(unconf_balances[to_node], to_send * 10 * (2 + n))
+
+            # node5 collects fee and block subsidy to keep accounting simple
+            self.nodes[5].generate(1)
+            sync_blocks(self.nodes)
+
+            new_balances = self.get_balances()
+            self.log.debug("Check new balances: {}".format(new_balances))
+            # We don't know what fee was set, so we can only check bounds on the balance of the sending node
+            assert_greater_than(new_balances[from_node], to_send * 10)
+            assert_greater_than(to_send * 11, new_balances[from_node])
+            for n, to_node in enumerate(range(from_node + 1, from_node + 4)):
+                to_node %= 4
+                assert_equal(new_balances[to_node], old_balances[to_node] + to_send * 10 * (2 + n))
+
+        # Get one p2sh/segwit address from node2 and two bech32 addresses from node3:
+        to_address_p2sh = self.nodes[2].getnewaddress()
+        to_address_bech32_1 = self.nodes[3].getnewaddress()
+        to_address_bech32_2 = self.nodes[3].getnewaddress()
+
+        # Fund node 4:
+        self.nodes[5].sendtoaddress(self.nodes[4].getnewaddress(), Decimal("1"))
+        self.nodes[5].generate(1)
+        sync_blocks(self.nodes)
+        assert_equal(self.nodes[4].getbalance(), 1)
+
+        self.log.info("Nodes with addresstype=legacy never use a P2WPKH change output")
+        self.test_change_output_type(0, [to_address_bech32_1], 'legacy')
+
+        self.log.info("Nodes with addresstype=p2sh-segwit only use a P2WPKH change output if any destination address is bech32:")
+        self.test_change_output_type(1, [to_address_p2sh], 'p2sh-segwit')
+        self.test_change_output_type(1, [to_address_bech32_1], 'bech32')
+        self.test_change_output_type(1, [to_address_p2sh, to_address_bech32_1], 'bech32')
+        self.test_change_output_type(1, [to_address_bech32_1, to_address_bech32_2], 'bech32')
+
+        self.log.info("Nodes with change_type=bech32 always use a P2WPKH change output:")
+        self.test_change_output_type(2, [to_address_bech32_1], 'bech32')
+        self.test_change_output_type(2, [to_address_p2sh], 'bech32')
+
+        self.log.info("Nodes with addresstype=bech32 always use a P2WPKH change output (unless changetype is set otherwise):")
+        self.test_change_output_type(3, [to_address_bech32_1], 'bech32')
+        self.test_change_output_type(3, [to_address_p2sh], 'bech32')
+
+        self.log.info('getrawchangeaddress defaults to addresstype if -changetype is not set and argument is absent')
+        self.test_address(3, self.nodes[3].getrawchangeaddress(), multisig=False, typ='bech32')
+
+        self.log.info('getrawchangeaddress fails with invalid changetype argument')
+        assert_raises_rpc_error(-5, "Unknown address type 'bech23'", self.nodes[3].getrawchangeaddress, 'bech23')
+
+        self.log.info("Nodes with changetype=p2sh-segwit never use a P2WPKH change output")
+        self.test_change_output_type(4, [to_address_bech32_1], 'p2sh-segwit')
+        self.test_address(4, self.nodes[4].getrawchangeaddress(), multisig=False, typ='p2sh-segwit')
+        self.log.info("Except for getrawchangeaddress if specified:")
+        self.test_address(4, self.nodes[4].getrawchangeaddress(), multisig=False, typ='p2sh-segwit')
+        self.test_address(4, self.nodes[4].getrawchangeaddress('bech32'), multisig=False, typ='bech32')
+
+if __name__ == '__main__':
+    AddressTypeTest().main()
diff --git a/test/functional/walletbackup.py b/test/functional/wallet_backup.py
index 85a149793e..b4be7debb5 100755
--- a/test/functional/walletbackup.py
+++ b/test/functional/wallet_backup.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2014-2016 The Bitcoin Core developers
+# Copyright (c) 2014-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test the wallet backup features.
@@ -90,9 +90,9 @@ class WalletBackupTest(BitcoinTestFramework):
         self.stop_node(2)
 
     def erase_three(self):
-        os.remove(self.options.tmpdir + "/node0/regtest/wallet.dat")
-        os.remove(self.options.tmpdir + "/node1/regtest/wallet.dat")
-        os.remove(self.options.tmpdir + "/node2/regtest/wallet.dat")
+        os.remove(self.options.tmpdir + "/node0/regtest/wallets/wallet.dat")
+        os.remove(self.options.tmpdir + "/node1/regtest/wallets/wallet.dat")
+        os.remove(self.options.tmpdir + "/node2/regtest/wallets/wallet.dat")
 
     def run_test(self):
         self.log.info("Generating initial blockchain")
@@ -154,9 +154,9 @@ class WalletBackupTest(BitcoinTestFramework):
         shutil.rmtree(self.options.tmpdir + "/node2/regtest/chainstate")
 
         # Restore wallets from backup
-        shutil.copyfile(tmpdir + "/node0/wallet.bak", tmpdir + "/node0/regtest/wallet.dat")
-        shutil.copyfile(tmpdir + "/node1/wallet.bak", tmpdir + "/node1/regtest/wallet.dat")
-        shutil.copyfile(tmpdir + "/node2/wallet.bak", tmpdir + "/node2/regtest/wallet.dat")
+        shutil.copyfile(tmpdir + "/node0/wallet.bak", tmpdir + "/node0/regtest/wallets/wallet.dat")
+        shutil.copyfile(tmpdir + "/node1/wallet.bak", tmpdir + "/node1/regtest/wallets/wallet.dat")
+        shutil.copyfile(tmpdir + "/node2/wallet.bak", tmpdir + "/node2/regtest/wallets/wallet.dat")
 
         self.log.info("Re-starting nodes")
         self.start_three()
@@ -192,10 +192,10 @@ class WalletBackupTest(BitcoinTestFramework):
 
         # Backup to source wallet file must fail
         sourcePaths = [
-            tmpdir + "/node0/regtest/wallet.dat",
-            tmpdir + "/node0/./regtest/wallet.dat",
-            tmpdir + "/node0/regtest/",
-            tmpdir + "/node0/regtest"]
+            tmpdir + "/node0/regtest/wallets/wallet.dat",
+            tmpdir + "/node0/./regtest/wallets/wallet.dat",
+            tmpdir + "/node0/regtest/wallets/",
+            tmpdir + "/node0/regtest/wallets"]
 
         for sourcePath in sourcePaths:
             assert_raises_rpc_error(-4, "backup failed", self.nodes[0].backupwallet, sourcePath)
diff --git a/test/functional/wallet.py b/test/functional/wallet_basic.py
index db60df18ed..a90dbc8adf 100755
--- a/test/functional/wallet.py
+++ b/test/functional/wallet_basic.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2014-2016 The Bitcoin Core developers
+# Copyright (c) 2014-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test the wallet."""
@@ -27,6 +27,9 @@ class WalletTest(BitcoinTestFramework):
         assert_fee_amount(fee, tx_size, fee_per_byte * 1000)
         return curr_balance
 
+    def get_vsize(self, txn):
+        return self.nodes[0].decoderawtransaction(txn)['vsize']
+
     def run_test(self):
         # Check that there's no UTXO on none of the nodes
         assert_equal(len(self.nodes[0].listunspent()), 0)
@@ -162,7 +165,7 @@ class WalletTest(BitcoinTestFramework):
         txid = self.nodes[2].sendtoaddress(address, 10, "", "", False)
         self.nodes[2].generate(1)
         self.sync_all([self.nodes[0:3]])
-        node_2_bal = self.check_fee_amount(self.nodes[2].getbalance(), Decimal('84'), fee_per_byte, count_bytes(self.nodes[2].getrawtransaction(txid)))
+        node_2_bal = self.check_fee_amount(self.nodes[2].getbalance(), Decimal('84'), fee_per_byte, self.get_vsize(self.nodes[2].getrawtransaction(txid)))
         assert_equal(self.nodes[0].getbalance(), Decimal('10'))
 
         # Send 10 BTC with subtract fee from amount
@@ -171,14 +174,14 @@ class WalletTest(BitcoinTestFramework):
         self.sync_all([self.nodes[0:3]])
         node_2_bal -= Decimal('10')
         assert_equal(self.nodes[2].getbalance(), node_2_bal)
-        node_0_bal = self.check_fee_amount(self.nodes[0].getbalance(), Decimal('20'), fee_per_byte, count_bytes(self.nodes[2].getrawtransaction(txid)))
+        node_0_bal = self.check_fee_amount(self.nodes[0].getbalance(), Decimal('20'), fee_per_byte, self.get_vsize(self.nodes[2].getrawtransaction(txid)))
 
         # Sendmany 10 BTC
         txid = self.nodes[2].sendmany('from1', {address: 10}, 0, "", [])
         self.nodes[2].generate(1)
         self.sync_all([self.nodes[0:3]])
         node_0_bal += Decimal('10')
-        node_2_bal = self.check_fee_amount(self.nodes[2].getbalance(), node_2_bal - Decimal('10'), fee_per_byte, count_bytes(self.nodes[2].getrawtransaction(txid)))
+        node_2_bal = self.check_fee_amount(self.nodes[2].getbalance(), node_2_bal - Decimal('10'), fee_per_byte, self.get_vsize(self.nodes[2].getrawtransaction(txid)))
         assert_equal(self.nodes[0].getbalance(), node_0_bal)
 
         # Sendmany 10 BTC with subtract fee from amount
@@ -187,7 +190,7 @@ class WalletTest(BitcoinTestFramework):
         self.sync_all([self.nodes[0:3]])
         node_2_bal -= Decimal('10')
         assert_equal(self.nodes[2].getbalance(), node_2_bal)
-        node_0_bal = self.check_fee_amount(self.nodes[0].getbalance(), node_0_bal + Decimal('10'), fee_per_byte, count_bytes(self.nodes[2].getrawtransaction(txid)))
+        node_0_bal = self.check_fee_amount(self.nodes[0].getbalance(), node_0_bal + Decimal('10'), fee_per_byte, self.get_vsize(self.nodes[2].getrawtransaction(txid)))
 
         # Test ResendWalletTransactions:
         # Create a couple of transactions, then start up a fourth
diff --git a/test/functional/bumpfee.py b/test/functional/wallet_bumpfee.py
index 008e83d5b2..2cd4127854 100755
--- a/test/functional/bumpfee.py
+++ b/test/functional/wallet_bumpfee.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2016 The Bitcoin Core developers
+# Copyright (c) 2016-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test the bumpfee RPC.
@@ -14,7 +14,7 @@ added in the future, they should try to follow the same convention and not
 make assumptions about execution order.
 """
 
-from segwit import send_to_witness
+from test_framework.blocktools import send_to_witness
 from test_framework.test_framework import BitcoinTestFramework
 from test_framework import blocktools
 from test_framework.mininode import CTransaction
@@ -33,7 +33,7 @@ class BumpFeeTest(BitcoinTestFramework):
     def set_test_params(self):
         self.num_nodes = 2
         self.setup_clean_chain = True
-        self.extra_args = [["-prematurewitness", "-walletprematurewitness", "-walletrbf={}".format(i)]
+        self.extra_args = [["-prematurewitness", "-walletprematurewitness", "-deprecatedrpc=addwitnessaddress", "-walletrbf={}".format(i)]
                            for i in range(self.num_nodes)]
 
     def run_test(self):
@@ -194,7 +194,7 @@ def test_settxfee(rbf_node, dest_address):
     requested_feerate = Decimal("0.00025000")
     rbf_node.settxfee(requested_feerate)
     bumped_tx = rbf_node.bumpfee(rbfid)
-    actual_feerate = bumped_tx["fee"] * 1000 / rbf_node.getrawtransaction(bumped_tx["txid"], True)["size"]
+    actual_feerate = bumped_tx["fee"] * 1000 / rbf_node.getrawtransaction(bumped_tx["txid"], True)["vsize"]
     # Assert that the difference between the requested feerate and the actual
     # feerate of the bumped transaction is small.
     assert_greater_than(Decimal("0.00001000"), abs(requested_feerate - actual_feerate))
@@ -290,6 +290,7 @@ def submit_block_with_tx(node, tx):
     block.vtx.append(ctx)
     block.rehash()
     block.hashMerkleRoot = block.calc_merkle_root()
+    blocktools.add_witness_commitment(block)
     block.solve()
     node.submitblock(bytes_to_hex_str(block.serialize(True)))
     return block
diff --git a/test/functional/disablewallet.py b/test/functional/wallet_disable.py
index c75ef9b9f1..b0627d88ac 100755
--- a/test/functional/disablewallet.py
+++ b/test/functional/wallet_disable.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2015-2016 The Bitcoin Core developers
+# Copyright (c) 2015-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test a node with the -disablewallet option.
diff --git a/test/functional/wallet-dump.py b/test/functional/wallet_dump.py
index 47de8777a6..77f90ffb81 100755
--- a/test/functional/wallet-dump.py
+++ b/test/functional/wallet_dump.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2016 The Bitcoin Core developers
+# Copyright (c) 2016-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test the dumpwallet RPC."""
@@ -10,13 +10,14 @@ from test_framework.test_framework import BitcoinTestFramework
 from test_framework.util import (assert_equal, assert_raises_rpc_error)
 
 
-def read_dump(file_name, addrs, hd_master_addr_old):
+def read_dump(file_name, addrs, script_addrs, hd_master_addr_old):
     """
     Read the given dump, count the addrs that match, count change and reserve.
     Also check that the old hd_master is inactive
     """
     with open(file_name, encoding='utf8') as inputfile:
         found_addr = 0
+        found_script_addr = 0
         found_addr_chg = 0
         found_addr_rsv = 0
         hd_master_addr_ret = None
@@ -38,6 +39,9 @@ def read_dump(file_name, addrs, hd_master_addr_old):
                         # ensure we have generated a new hd master key
                         assert(hd_master_addr_old != addr)
                         hd_master_addr_ret = addr
+                    elif keytype == "script=1":
+                        # scripts don't have keypaths
+                        keypath = None
                     else:
                         keypath = addr_keypath.rstrip().split("hdkeypath=")[1]
 
@@ -52,13 +56,20 @@ def read_dump(file_name, addrs, hd_master_addr_old):
                         elif keytype == "reserve=1":
                             found_addr_rsv += 1
                             break
-        return found_addr, found_addr_chg, found_addr_rsv, hd_master_addr_ret
+
+                    # count scripts
+                    for script_addr in script_addrs:
+                        if script_addr == addr.rstrip() and keytype == "script=1":
+                            found_script_addr += 1
+                            break
+
+        return found_addr, found_script_addr, found_addr_chg, found_addr_rsv, hd_master_addr_ret
 
 
 class WalletDumpTest(BitcoinTestFramework):
     def set_test_params(self):
         self.num_nodes = 1
-        self.extra_args = [["-keypool=90"]]
+        self.extra_args = [["-keypool=90", "-addresstype=legacy", "-deprecatedrpc=addwitnessaddress"]]
 
     def setup_network(self, split=False):
         # Use 1 minute timeout because the initial getnewaddress RPC can take
@@ -81,13 +92,19 @@ class WalletDumpTest(BitcoinTestFramework):
         # Should be a no-op:
         self.nodes[0].keypoolrefill()
 
+        # Test scripts dump by adding a P2SH witness and a 1-of-1 multisig address
+        witness_addr = self.nodes[0].addwitnessaddress(addrs[0]["address"], True)
+        multisig_addr = self.nodes[0].addmultisigaddress(1, [addrs[1]["address"]])["address"]
+        script_addrs = [witness_addr, multisig_addr]
+
         # dump unencrypted wallet
         result = self.nodes[0].dumpwallet(tmpdir + "/node0/wallet.unencrypted.dump")
         assert_equal(result['filename'], os.path.abspath(tmpdir + "/node0/wallet.unencrypted.dump"))
 
-        found_addr, found_addr_chg, found_addr_rsv, hd_master_addr_unenc = \
-            read_dump(tmpdir + "/node0/wallet.unencrypted.dump", addrs, None)
+        found_addr, found_script_addr, found_addr_chg, found_addr_rsv, hd_master_addr_unenc = \
+            read_dump(tmpdir + "/node0/wallet.unencrypted.dump", addrs, script_addrs, None)
         assert_equal(found_addr, test_addr_count)  # all keys must be in the dump
+        assert_equal(found_script_addr, 2)  # all scripts must be in the dump
         assert_equal(found_addr_chg, 50)  # 50 blocks where mined
         assert_equal(found_addr_rsv, 90*2) # 90 keys plus 100% internal keys
 
@@ -99,14 +116,29 @@ class WalletDumpTest(BitcoinTestFramework):
         self.nodes[0].keypoolrefill()
         self.nodes[0].dumpwallet(tmpdir + "/node0/wallet.encrypted.dump")
 
-        found_addr, found_addr_chg, found_addr_rsv, _ = \
-            read_dump(tmpdir + "/node0/wallet.encrypted.dump", addrs, hd_master_addr_unenc)
+        found_addr, found_script_addr, found_addr_chg, found_addr_rsv, _ = \
+            read_dump(tmpdir + "/node0/wallet.encrypted.dump", addrs, script_addrs, hd_master_addr_unenc)
         assert_equal(found_addr, test_addr_count)
+        assert_equal(found_script_addr, 2)
         assert_equal(found_addr_chg, 90*2 + 50)  # old reserve keys are marked as change now
         assert_equal(found_addr_rsv, 90*2) 
 
         # Overwriting should fail
         assert_raises_rpc_error(-8, "already exists", self.nodes[0].dumpwallet, tmpdir + "/node0/wallet.unencrypted.dump")
 
+        # Restart node with new wallet, and test importwallet
+        self.stop_node(0)
+        self.start_node(0, ['-wallet=w2'])
+
+        # Make sure the address is not IsMine before import
+        result = self.nodes[0].validateaddress(multisig_addr)
+        assert(result['ismine'] == False)
+
+        self.nodes[0].importwallet(os.path.abspath(tmpdir + "/node0/wallet.unencrypted.dump"))
+
+        # Now check IsMine is true
+        result = self.nodes[0].validateaddress(multisig_addr)
+        assert(result['ismine'] == True)
+
 if __name__ == '__main__':
     WalletDumpTest().main ()
diff --git a/test/functional/wallet-encryption.py b/test/functional/wallet_encryption.py
index db62e1e30f..3c927ee484 100755
--- a/test/functional/wallet-encryption.py
+++ b/test/functional/wallet_encryption.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2016 The Bitcoin Core developers
+# Copyright (c) 2016-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test Wallet encryption"""
@@ -10,6 +10,8 @@ from test_framework.test_framework import BitcoinTestFramework
 from test_framework.util import (
     assert_equal,
     assert_raises_rpc_error,
+    assert_greater_than,
+    assert_greater_than_or_equal,
 )
 
 class WalletEncryptionTest(BitcoinTestFramework):
@@ -56,6 +58,23 @@ class WalletEncryptionTest(BitcoinTestFramework):
         assert_raises_rpc_error(-14, "wallet passphrase entered was incorrect", self.nodes[0].walletpassphrase, passphrase, 10)
         self.nodes[0].walletpassphrase(passphrase2, 10)
         assert_equal(privkey, self.nodes[0].dumpprivkey(address))
+        self.nodes[0].walletlock()
+
+        # Test timeout bounds
+        assert_raises_rpc_error(-8, "Timeout cannot be negative.", self.nodes[0].walletpassphrase, passphrase2, -10)
+        # Check the timeout
+        # Check a time less than the limit
+        expected_time = int(time.time()) + (1 << 30) - 600
+        self.nodes[0].walletpassphrase(passphrase2, (1 << 30) - 600)
+        actual_time = self.nodes[0].getwalletinfo()['unlocked_until']
+        assert_greater_than_or_equal(actual_time, expected_time)
+        assert_greater_than(expected_time + 5, actual_time) # 5 second buffer
+        # Check a time greater than the limit
+        expected_time = int(time.time()) + (1 << 30) - 1
+        self.nodes[0].walletpassphrase(passphrase2, (1 << 33))
+        actual_time = self.nodes[0].getwalletinfo()['unlocked_until']
+        assert_greater_than_or_equal(actual_time, expected_time)
+        assert_greater_than(expected_time + 5, actual_time) # 5 second buffer
 
 if __name__ == '__main__':
     WalletEncryptionTest().main()
diff --git a/test/functional/wallet-hd.py b/test/functional/wallet_hd.py
index 9b6ce68609..9f0e9acb47 100755
--- a/test/functional/wallet-hd.py
+++ b/test/functional/wallet_hd.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2016 The Bitcoin Core developers
+# Copyright (c) 2016-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test Hierarchical Deterministic wallet function."""
@@ -73,7 +73,7 @@ class WalletHDTest(BitcoinTestFramework):
         # otherwise node1 would auto-recover all funds in flag the keypool keys as used
         shutil.rmtree(os.path.join(tmpdir, "node1/regtest/blocks"))
         shutil.rmtree(os.path.join(tmpdir, "node1/regtest/chainstate"))
-        shutil.copyfile(os.path.join(tmpdir, "hd.bak"), os.path.join(tmpdir, "node1/regtest/wallet.dat"))
+        shutil.copyfile(os.path.join(tmpdir, "hd.bak"), os.path.join(tmpdir, "node1/regtest/wallets/wallet.dat"))
         self.start_node(1)
 
         # Assert that derivation is deterministic
diff --git a/test/functional/import-rescan.py b/test/functional/wallet_import_rescan.py
index 6807fa6696..d193a99d5b 100755
--- a/test/functional/import-rescan.py
+++ b/test/functional/wallet_import_rescan.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2014-2016 The Bitcoin Core developers
+# Copyright (c) 2014-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test wallet import RPCs.
@@ -119,7 +119,7 @@ class ImportRescanTest(BitcoinTestFramework):
         self.num_nodes = 2 + len(IMPORT_NODES)
 
     def setup_network(self):
-        extra_args = [[] for _ in range(self.num_nodes)]
+        extra_args = [["-addresstype=legacy"] for _ in range(self.num_nodes)]
         for i, import_node in enumerate(IMPORT_NODES, 2):
             if import_node.prune:
                 extra_args[i] += ["-prune=1"]
diff --git a/test/functional/importmulti.py b/test/functional/wallet_importmulti.py
index a691595f15..be9be83839 100755
--- a/test/functional/importmulti.py
+++ b/test/functional/wallet_importmulti.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2014-2016 The Bitcoin Core developers
+# Copyright (c) 2014-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test the importmulti RPC."""
@@ -9,6 +9,7 @@ from test_framework.util import *
 class ImportMultiTest (BitcoinTestFramework):
     def set_test_params(self):
         self.num_nodes = 2
+        self.extra_args = [["-addresstype=legacy"], ["-addresstype=legacy"]]
         self.setup_clean_chain = True
 
     def setup_network(self):
@@ -227,7 +228,7 @@ class ImportMultiTest (BitcoinTestFramework):
         sig_address_1 = self.nodes[0].validateaddress(self.nodes[0].getnewaddress())
         sig_address_2 = self.nodes[0].validateaddress(self.nodes[0].getnewaddress())
         sig_address_3 = self.nodes[0].validateaddress(self.nodes[0].getnewaddress())
-        multi_sig_script = self.nodes[0].createmultisig(2, [sig_address_1['address'], sig_address_2['address'], sig_address_3['pubkey']])
+        multi_sig_script = self.nodes[0].createmultisig(2, [sig_address_1['pubkey'], sig_address_2['pubkey'], sig_address_3['pubkey']])
         self.nodes[1].generate(100)
         transactionid = self.nodes[1].sendtoaddress(multi_sig_script['address'], 10.00)
         self.nodes[1].generate(1)
@@ -254,7 +255,7 @@ class ImportMultiTest (BitcoinTestFramework):
         sig_address_1 = self.nodes[0].validateaddress(self.nodes[0].getnewaddress())
         sig_address_2 = self.nodes[0].validateaddress(self.nodes[0].getnewaddress())
         sig_address_3 = self.nodes[0].validateaddress(self.nodes[0].getnewaddress())
-        multi_sig_script = self.nodes[0].createmultisig(2, [sig_address_1['address'], sig_address_2['address'], sig_address_3['pubkey']])
+        multi_sig_script = self.nodes[0].createmultisig(2, [sig_address_1['pubkey'], sig_address_2['pubkey'], sig_address_3['pubkey']])
         self.nodes[1].generate(100)
         transactionid = self.nodes[1].sendtoaddress(multi_sig_script['address'], 10.00)
         self.nodes[1].generate(1)
@@ -281,7 +282,7 @@ class ImportMultiTest (BitcoinTestFramework):
         sig_address_1 = self.nodes[0].validateaddress(self.nodes[0].getnewaddress())
         sig_address_2 = self.nodes[0].validateaddress(self.nodes[0].getnewaddress())
         sig_address_3 = self.nodes[0].validateaddress(self.nodes[0].getnewaddress())
-        multi_sig_script = self.nodes[0].createmultisig(2, [sig_address_1['address'], sig_address_2['address'], sig_address_3['pubkey']])
+        multi_sig_script = self.nodes[0].createmultisig(2, [sig_address_1['pubkey'], sig_address_2['pubkey'], sig_address_3['pubkey']])
         self.nodes[1].generate(100)
         transactionid = self.nodes[1].sendtoaddress(multi_sig_script['address'], 10.00)
         self.nodes[1].generate(1)
@@ -308,7 +309,7 @@ class ImportMultiTest (BitcoinTestFramework):
         sig_address_1 = self.nodes[0].validateaddress(self.nodes[0].getnewaddress())
         sig_address_2 = self.nodes[0].validateaddress(self.nodes[0].getnewaddress())
         sig_address_3 = self.nodes[0].validateaddress(self.nodes[0].getnewaddress())
-        multi_sig_script = self.nodes[0].createmultisig(2, [sig_address_1['address'], sig_address_2['address'], sig_address_3['pubkey']])
+        multi_sig_script = self.nodes[0].createmultisig(2, [sig_address_1['pubkey'], sig_address_2['pubkey'], sig_address_3['pubkey']])
         self.nodes[1].generate(100)
         transactionid = self.nodes[1].sendtoaddress(multi_sig_script['address'], 10.00)
         self.nodes[1].generate(1)
diff --git a/test/functional/importprunedfunds.py b/test/functional/wallet_importprunedfunds.py
index 068052409a..6b2919b5ae 100755
--- a/test/functional/importprunedfunds.py
+++ b/test/functional/wallet_importprunedfunds.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2014-2016 The Bitcoin Core developers
+# Copyright (c) 2014-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test the importprunedfunds and removeprunedfunds RPCs."""
diff --git a/test/functional/keypool.py b/test/functional/wallet_keypool.py
index f2701c36bd..45a5eed8ec 100755
--- a/test/functional/keypool.py
+++ b/test/functional/wallet_keypool.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2014-2016 The Bitcoin Core developers
+# Copyright (c) 2014-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test the wallet keypool and interaction with wallet encryption/locking."""
diff --git a/test/functional/keypool-topup.py b/test/functional/wallet_keypool_topup.py
index 160a0f7ae5..e7af3c3987 100755
--- a/test/functional/keypool-topup.py
+++ b/test/functional/wallet_keypool_topup.py
@@ -33,7 +33,7 @@ class KeypoolRestoreTest(BitcoinTestFramework):
 
         self.stop_node(1)
 
-        shutil.copyfile(self.tmpdir + "/node1/regtest/wallet.dat", self.tmpdir + "/wallet.bak")
+        shutil.copyfile(self.tmpdir + "/node1/regtest/wallets/wallet.dat", self.tmpdir + "/wallet.bak")
         self.start_node(1, self.extra_args[1])
         connect_nodes_bi(self.nodes, 0, 1)
 
@@ -56,7 +56,7 @@ class KeypoolRestoreTest(BitcoinTestFramework):
 
         self.stop_node(1)
 
-        shutil.copyfile(self.tmpdir + "/wallet.bak", self.tmpdir + "/node1/regtest/wallet.dat")
+        shutil.copyfile(self.tmpdir + "/wallet.bak", self.tmpdir + "/node1/regtest/wallets/wallet.dat")
 
         self.log.info("Verify keypool is restored and balance is correct")
 
diff --git a/test/functional/receivedby.py b/test/functional/wallet_listreceivedby.py
index 97da19546f..1f2b3c8aa7 100755
--- a/test/functional/receivedby.py
+++ b/test/functional/wallet_listreceivedby.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2014-2016 The Bitcoin Core developers
+# Copyright (c) 2014-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test the listreceivedbyaddress RPC."""
diff --git a/test/functional/listsinceblock.py b/test/functional/wallet_listsinceblock.py
index 67e7744bf8..67e7744bf8 100755
--- a/test/functional/listsinceblock.py
+++ b/test/functional/wallet_listsinceblock.py
diff --git a/test/functional/wallet_multiwallet.py b/test/functional/wallet_multiwallet.py
new file mode 100755
index 0000000000..b07e451667
--- /dev/null
+++ b/test/functional/wallet_multiwallet.py
@@ -0,0 +1,133 @@
+#!/usr/bin/env python3
+# Copyright (c) 2017 The Bitcoin Core developers
+# Distributed under the MIT software license, see the accompanying
+# file COPYING or http://www.opensource.org/licenses/mit-license.php.
+"""Test multiwallet.
+
+Verify that a bitcoind node can load multiple wallet files
+"""
+import os
+import shutil
+
+from test_framework.test_framework import BitcoinTestFramework
+from test_framework.util import assert_equal, assert_raises_rpc_error
+
+class MultiWalletTest(BitcoinTestFramework):
+    def set_test_params(self):
+        self.setup_clean_chain = True
+        self.num_nodes = 2
+        self.extra_args = [['-wallet=w1', '-wallet=w2', '-wallet=w3', '-wallet=w'], []]
+        self.supports_cli = True
+
+    def run_test(self):
+        node = self.nodes[0]
+
+        data_dir = lambda *p: os.path.join(node.datadir, 'regtest', *p)
+        wallet_dir = lambda *p: data_dir('wallets', *p)
+        wallet = lambda name: node.get_wallet_rpc(name)
+
+        assert_equal(set(node.listwallets()), {"w1", "w2", "w3", "w"})
+
+        self.stop_nodes()
+
+        self.assert_start_raises_init_error(0, ['-walletdir=wallets'], 'Error: Specified -walletdir "wallets" does not exist')
+        self.assert_start_raises_init_error(0, ['-walletdir=wallets'], 'Error: Specified -walletdir "wallets" is a relative path', cwd=data_dir())
+        self.assert_start_raises_init_error(0, ['-walletdir=debug.log'], 'Error: Specified -walletdir "debug.log" is not a directory', cwd=data_dir())
+
+        # should not initialize if there are duplicate wallets
+        self.assert_start_raises_init_error(0, ['-wallet=w1', '-wallet=w1'], 'Error loading wallet w1. Duplicate -wallet filename specified.')
+
+        # should not initialize if wallet file is a directory
+        os.mkdir(wallet_dir('w11'))
+        self.assert_start_raises_init_error(0, ['-wallet=w11'], 'Error loading wallet w11. -wallet filename must be a regular file.')
+
+        # should not initialize if one wallet is a copy of another
+        shutil.copyfile(wallet_dir('w2'), wallet_dir('w22'))
+        self.assert_start_raises_init_error(0, ['-wallet=w2', '-wallet=w22'], 'duplicates fileid')
+
+        # should not initialize if wallet file is a symlink
+        os.symlink(wallet_dir('w1'), wallet_dir('w12'))
+        self.assert_start_raises_init_error(0, ['-wallet=w12'], 'Error loading wallet w12. -wallet filename must be a regular file.')
+
+        # should not initialize if the specified walletdir does not exist
+        self.assert_start_raises_init_error(0, ['-walletdir=bad'], 'Error: Specified -walletdir "bad" does not exist')
+        # should not initialize if the specified walletdir is not a directory
+        not_a_dir = wallet_dir('notadir')
+        open(not_a_dir, 'a').close()
+        self.assert_start_raises_init_error(0, ['-walletdir=' + not_a_dir], 'Error: Specified -walletdir "' + not_a_dir + '" is not a directory')
+
+        # if wallets/ doesn't exist, datadir should be the default wallet dir
+        wallet_dir2 = data_dir('walletdir')
+        os.rename(wallet_dir(), wallet_dir2)
+        self.start_node(0, ['-wallet=w4', '-wallet=w5'])
+        assert_equal(set(node.listwallets()), {"w4", "w5"})
+        w5 = wallet("w5")
+        w5.generate(1)
+
+        # now if wallets/ exists again, but the rootdir is specified as the walletdir, w4 and w5 should still be loaded
+        os.rename(wallet_dir2, wallet_dir())
+        self.restart_node(0, ['-wallet=w4', '-wallet=w5', '-walletdir=' + data_dir()])
+        assert_equal(set(node.listwallets()), {"w4", "w5"})
+        w5 = wallet("w5")
+        w5_info = w5.getwalletinfo()
+        assert_equal(w5_info['immature_balance'], 50)
+
+        competing_wallet_dir = os.path.join(self.options.tmpdir, 'competing_walletdir')
+        os.mkdir(competing_wallet_dir)
+        self.restart_node(0, ['-walletdir='+competing_wallet_dir])
+        self.assert_start_raises_init_error(1, ['-walletdir='+competing_wallet_dir], 'Error initializing wallet database environment')
+
+        self.restart_node(0, self.extra_args[0])
+
+        w1 = wallet("w1")
+        w2 = wallet("w2")
+        w3 = wallet("w3")
+        w4 = wallet("w")
+        wallet_bad = wallet("bad")
+
+        w1.generate(1)
+
+        # accessing invalid wallet fails
+        assert_raises_rpc_error(-18, "Requested wallet does not exist or is not loaded", wallet_bad.getwalletinfo)
+
+        # accessing wallet RPC without using wallet endpoint fails
+        assert_raises_rpc_error(-19, "Wallet file not specified", node.getwalletinfo)
+
+        # check w1 wallet balance
+        w1_info = w1.getwalletinfo()
+        assert_equal(w1_info['immature_balance'], 50)
+        w1_name = w1_info['walletname']
+        assert_equal(w1_name, "w1")
+
+        # check w2 wallet balance
+        w2_info = w2.getwalletinfo()
+        assert_equal(w2_info['immature_balance'], 0)
+        w2_name = w2_info['walletname']
+        assert_equal(w2_name, "w2")
+
+        w3_name = w3.getwalletinfo()['walletname']
+        assert_equal(w3_name, "w3")
+
+        w4_name = w4.getwalletinfo()['walletname']
+        assert_equal(w4_name, "w")
+
+        w1.generate(101)
+        assert_equal(w1.getbalance(), 100)
+        assert_equal(w2.getbalance(), 0)
+        assert_equal(w3.getbalance(), 0)
+        assert_equal(w4.getbalance(), 0)
+
+        w1.sendtoaddress(w2.getnewaddress(), 1)
+        w1.sendtoaddress(w3.getnewaddress(), 2)
+        w1.sendtoaddress(w4.getnewaddress(), 3)
+        w1.generate(1)
+        assert_equal(w2.getbalance(), 1)
+        assert_equal(w3.getbalance(), 2)
+        assert_equal(w4.getbalance(), 3)
+
+        batch = w1.batch([w1.getblockchaininfo.get_request(), w1.getwalletinfo.get_request()])
+        assert_equal(batch[0]["result"]["chain"], "regtest")
+        assert_equal(batch[1]["result"]["walletname"], "w1")
+
+if __name__ == '__main__':
+    MultiWalletTest().main()
diff --git a/test/functional/resendwallettransactions.py b/test/functional/wallet_resendwallettransactions.py
index d959bb4c38..d959bb4c38 100755
--- a/test/functional/resendwallettransactions.py
+++ b/test/functional/wallet_resendwallettransactions.py
diff --git a/test/functional/txn_clone.py b/test/functional/wallet_txn_clone.py
index 740bb2d4c5..ce26d6e0ee 100755
--- a/test/functional/txn_clone.py
+++ b/test/functional/wallet_txn_clone.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2014-2016 The Bitcoin Core developers
+# Copyright (c) 2014-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test the wallet accounts properly when there are cloned transactions with malleated scriptsigs."""
@@ -14,6 +14,8 @@ class TxnMallTest(BitcoinTestFramework):
     def add_options(self, parser):
         parser.add_option("--mineblock", dest="mine_block", default=False, action="store_true",
                           help="Test double-spend of 1-confirmed transaction")
+        parser.add_option("--segwit", dest="segwit", default=False, action="store_true",
+                          help="Test behaviour with SegWit txn (which should fail")
 
     def setup_network(self):
         # Start with split network:
@@ -22,6 +24,11 @@ class TxnMallTest(BitcoinTestFramework):
         disconnect_nodes(self.nodes[2], 1)
 
     def run_test(self):
+        if self.options.segwit:
+            output_type="p2sh-segwit"
+        else:
+            output_type="legacy"
+
         # All nodes should start with 1,250 BTC:
         starting_balance = 1250
         for i in range(4):
@@ -31,11 +38,11 @@ class TxnMallTest(BitcoinTestFramework):
         # Assign coins to foo and bar accounts:
         self.nodes[0].settxfee(.001)
 
-        node0_address_foo = self.nodes[0].getnewaddress("foo")
+        node0_address_foo = self.nodes[0].getnewaddress("foo", output_type)
         fund_foo_txid = self.nodes[0].sendfrom("", node0_address_foo, 1219)
         fund_foo_tx = self.nodes[0].gettransaction(fund_foo_txid)
 
-        node0_address_bar = self.nodes[0].getnewaddress("bar")
+        node0_address_bar = self.nodes[0].getnewaddress("bar", output_type)
         fund_bar_txid = self.nodes[0].sendfrom("", node0_address_bar, 29)
         fund_bar_tx = self.nodes[0].gettransaction(fund_bar_txid)
 
@@ -106,6 +113,10 @@ class TxnMallTest(BitcoinTestFramework):
         # Send clone and its parent to miner
         self.nodes[2].sendrawtransaction(fund_foo_tx["hex"])
         txid1_clone = self.nodes[2].sendrawtransaction(tx1_clone["hex"])
+        if self.options.segwit:
+            assert_equal(txid1, txid1_clone)
+            return
+
         # ... mine a block...
         self.nodes[2].generate(1)
 
diff --git a/test/functional/txn_doublespend.py b/test/functional/wallet_txn_doublespend.py
index 69629ef951..01129f3817 100755
--- a/test/functional/txn_doublespend.py
+++ b/test/functional/wallet_txn_doublespend.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2014-2016 The Bitcoin Core developers
+# Copyright (c) 2014-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test the wallet accounts properly when there is a double-spend conflict."""
diff --git a/test/functional/zapwallettxes.py b/test/functional/wallet_zapwallettxes.py
index 8cd622dc8e..87f44b2737 100755
--- a/test/functional/zapwallettxes.py
+++ b/test/functional/wallet_zapwallettxes.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2014-2016 The Bitcoin Core developers
+# Copyright (c) 2014-2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test the zapwallettxes functionality.
@@ -10,7 +10,7 @@
   transactions are still available.
 - restart node 0 with zapwallettxes and persistmempool, and verify that both
   the confirmed and the unconfirmed transactions are still available.
-- restart node 0 with just zapwallettxed and verify that the confirmed
+- restart node 0 with just zapwallettxes and verify that the confirmed
   transactions are still available, but that the unconfirmed transaction has
   been zapped.
 """
@@ -59,6 +59,7 @@ class ZapWalletTXesTest (BitcoinTestFramework):
         self.start_node(0, ["-persistmempool=1", "-zapwallettxes=2"])
 
         wait_until(lambda: self.nodes[0].getmempoolinfo()['size'] == 1, timeout=3)
+        self.nodes[0].syncwithvalidationinterfacequeue()  # Flush mempool to wallet
 
         assert_equal(self.nodes[0].gettransaction(txid1)['txid'], txid1)
         assert_equal(self.nodes[0].gettransaction(txid2)['txid'], txid2)
diff --git a/test/util/bitcoin-util-test.py b/test/util/bitcoin-util-test.py
index ef34955d90..64e826ad0b 100755
--- a/test/util/bitcoin-util-test.py
+++ b/test/util/bitcoin-util-test.py
@@ -48,7 +48,7 @@ def main():
 
 def bctester(testDir, input_basename, buildenv):
     """ Loads and parses the input file, runs all tests and reports results"""
-    input_filename = testDir + "/" + input_basename
+    input_filename = os.path.join(testDir, input_basename)
     raw_data = open(input_filename).read()
     input_data = json.loads(raw_data)
 
@@ -77,7 +77,7 @@ def bctest(testDir, testObj, buildenv):
     are not as expected. Error is caught by bctester() and reported.
     """
     # Get the exec names and arguments
-    execprog = buildenv["BUILDDIR"] + "/src/" + testObj['exec'] + buildenv["EXEEXT"]
+    execprog = os.path.join(buildenv["BUILDDIR"], "src", testObj["exec"] + buildenv["EXEEXT"])
     execargs = testObj['args']
     execrun = [execprog] + execargs
 
@@ -85,24 +85,28 @@ def bctest(testDir, testObj, buildenv):
     stdinCfg = None
     inputData = None
     if "input" in testObj:
-        filename = testDir + "/" + testObj['input']
+        filename = os.path.join(testDir, testObj["input"])
         inputData = open(filename).read()
         stdinCfg = subprocess.PIPE
 
     # Read the expected output data (if there is any)
     outputFn = None
     outputData = None
+    outputType = None
     if "output_cmp" in testObj:
         outputFn = testObj['output_cmp']
         outputType = os.path.splitext(outputFn)[1][1:]  # output type from file extension (determines how to compare)
         try:
-            outputData = open(testDir + "/" + outputFn).read()
+            outputData = open(os.path.join(testDir, outputFn)).read()
         except:
             logging.error("Output file " + outputFn + " can not be opened")
             raise
         if not outputData:
             logging.error("Output data missing for " + outputFn)
             raise Exception
+        if not outputType:
+            logging.error("Output file %s does not have a file extension" % outputFn)
+            raise Exception
 
     # Run the test
     proc = subprocess.Popen(execrun, stdin=stdinCfg, stdout=subprocess.PIPE, stderr=subprocess.PIPE, universal_newlines=True)