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diff --git a/qa/rpc-tests/bip65-cltv-p2p.py b/qa/rpc-tests/bip65-cltv-p2p.py
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+#!/usr/bin/env python2
+#
+# Distributed under the MIT/X11 software license, see the accompanying
+# file COPYING or http://www.opensource.org/licenses/mit-license.php.
+#
+
+from test_framework.test_framework import ComparisonTestFramework
+from test_framework.util import *
+from test_framework.mininode import CTransaction, NetworkThread
+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_NOP2, OP_DROP
+from binascii import hexlify, unhexlify
+import cStringIO
+import time
+
+def cltv_invalidate(tx):
+ '''Modify the signature in vin 0 of the tx to fail CLTV
+
+ Prepends -1 CLTV DROP in the scriptSig itself.
+ '''
+ tx.vin[0].scriptSig = CScript([OP_1NEGATE, OP_NOP2, OP_DROP] +
+ list(CScript(tx.vin[0].scriptSig)))
+
+'''
+This test is meant to exercise BIP65 (CHECKLOCKTIMEVERIFY)
+Connect to a single node.
+Mine 2 (version 3) blocks (save the coinbases for later).
+Generate 98 more version 3 blocks, verify the node accepts.
+Mine 749 version 4 blocks, verify the node accepts.
+Check that the new CLTV rules are not enforced on the 750th version 4 block.
+Check that the new CLTV rules are enforced on the 751st version 4 block.
+Mine 199 new version blocks.
+Mine 1 old-version block.
+Mine 1 new version block.
+Mine 1 old version block, see that the node rejects.
+'''
+
+class BIP65Test(ComparisonTestFramework):
+
+ def __init__(self):
+ self.num_nodes = 1
+
+ def setup_network(self):
+ # Must set the blockversion for this test
+ self.nodes = start_nodes(1, self.options.tmpdir,
+ extra_args=[['-debug', '-whitelist=127.0.0.1', '-blockversion=3']],
+ binary=[self.options.testbinary])
+
+ 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
+ test.run()
+
+ def create_transaction(self, node, coinbase, to_address, amount):
+ from_txid = node.getblock(coinbase)['tx'][0]
+ inputs = [{ "txid" : from_txid, "vout" : 0}]
+ outputs = { to_address : amount }
+ rawtx = node.createrawtransaction(inputs, outputs)
+ signresult = node.signrawtransaction(rawtx)
+ tx = CTransaction()
+ f = cStringIO.StringIO(unhexlify(signresult['hex']))
+ tx.deserialize(f)
+ return tx
+
+ def get_tests(self):
+
+ self.coinbase_blocks = self.nodes[0].generate(2)
+ height = 3 # height of the next block to build
+ self.tip = int ("0x" + self.nodes[0].getbestblockhash() + "L", 0)
+ self.nodeaddress = self.nodes[0].getnewaddress()
+ self.last_block_time = time.time()
+
+ ''' 98 more version 3 blocks '''
+ test_blocks = []
+ for i in xrange(98):
+ block = create_block(self.tip, create_coinbase(height), self.last_block_time + 1)
+ block.nVersion = 3
+ block.rehash()
+ block.solve()
+ test_blocks.append([block, True])
+ self.last_block_time += 1
+ self.tip = block.sha256
+ height += 1
+ yield TestInstance(test_blocks, sync_every_block=False)
+
+ ''' Mine 749 version 4 blocks '''
+ test_blocks = []
+ for i in xrange(749):
+ block = create_block(self.tip, create_coinbase(height), self.last_block_time + 1)
+ block.nVersion = 4
+ block.rehash()
+ block.solve()
+ test_blocks.append([block, True])
+ self.last_block_time += 1
+ self.tip = block.sha256
+ height += 1
+ yield TestInstance(test_blocks, sync_every_block=False)
+
+ '''
+ Check that the new CLTV rules are not enforced in the 750th
+ version 3 block.
+ '''
+ spendtx = self.create_transaction(self.nodes[0],
+ self.coinbase_blocks[0], self.nodeaddress, 1.0)
+ cltv_invalidate(spendtx)
+ spendtx.rehash()
+
+ block = create_block(self.tip, create_coinbase(height), self.last_block_time + 1)
+ block.nVersion = 4
+ block.vtx.append(spendtx)
+ block.hashMerkleRoot = block.calc_merkle_root()
+ block.rehash()
+ block.solve()
+
+ self.last_block_time += 1
+ self.tip = block.sha256
+ height += 1
+ yield TestInstance([[block, True]])
+
+ '''
+ Check that the new CLTV rules are enforced in the 751st version 4
+ block.
+ '''
+ spendtx = self.create_transaction(self.nodes[0],
+ self.coinbase_blocks[1], self.nodeaddress, 1.0)
+ cltv_invalidate(spendtx)
+ spendtx.rehash()
+
+ block = create_block(self.tip, create_coinbase(height), self.last_block_time + 1)
+ block.nVersion = 4
+ block.vtx.append(spendtx)
+ block.hashMerkleRoot = block.calc_merkle_root()
+ block.rehash()
+ block.solve()
+ self.last_block_time += 1
+ yield TestInstance([[block, False]])
+
+ ''' Mine 199 new version blocks on last valid tip '''
+ test_blocks = []
+ for i in xrange(199):
+ block = create_block(self.tip, create_coinbase(height), self.last_block_time + 1)
+ block.nVersion = 4
+ block.rehash()
+ block.solve()
+ test_blocks.append([block, True])
+ self.last_block_time += 1
+ self.tip = block.sha256
+ height += 1
+ yield TestInstance(test_blocks, sync_every_block=False)
+
+ ''' Mine 1 old version block '''
+ block = create_block(self.tip, create_coinbase(height), self.last_block_time + 1)
+ block.nVersion = 3
+ block.rehash()
+ block.solve()
+ self.last_block_time += 1
+ self.tip = block.sha256
+ height += 1
+ yield TestInstance([[block, True]])
+
+ ''' Mine 1 new version block '''
+ block = create_block(self.tip, create_coinbase(height), self.last_block_time + 1)
+ block.nVersion = 4
+ block.rehash()
+ block.solve()
+ self.last_block_time += 1
+ self.tip = block.sha256
+ height += 1
+ yield TestInstance([[block, True]])
+
+ ''' Mine 1 old version block, should be invalid '''
+ block = create_block(self.tip, create_coinbase(height), self.last_block_time + 1)
+ block.nVersion = 3
+ block.rehash()
+ block.solve()
+ self.last_block_time += 1
+ yield TestInstance([[block, False]])
+
+if __name__ == '__main__':
+ BIP65Test().main()