test: Add test for p2p_blocksonly

Github-Pull: #15990
Rebased-From: fa320de79faaca2b088fcbe7f76701faa9bff236

3 files changed, 67 insertions, 0 deletions

diff --git a/test/functional/p2p_blocksonly.py b/test/functional/p2p_blocksonly.py
new file mode 100755
index 0000000000..12cb06a407
--- /dev/null
+++ b/test/functional/p2p_blocksonly.py
@@ -0,0 +1,58 @@
+#!/usr/bin/env python3
+# Copyright (c) 2019 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 blocksonly"""
+
+from test_framework.messages import msg_tx, CTransaction, FromHex
+from test_framework.mininode import P2PInterface
+from test_framework.test_framework import BitcoinTestFramework
+from test_framework.util import assert_equal
+
+
+class P2PBlocksOnly(BitcoinTestFramework):
+    def set_test_params(self):
+        self.setup_clean_chain = False
+        self.num_nodes = 1
+        self.extra_args = [["-blocksonly"]]
+
+    def run_test(self):
+        self.nodes[0].add_p2p_connection(P2PInterface())
+
+        self.log.info('Check that txs from p2p are rejected')
+        prevtx = self.nodes[0].getblock(self.nodes[0].getblockhash(1), 2)['tx'][0]
+        rawtx = self.nodes[0].createrawtransaction(
+            inputs=[{
+                'txid': prevtx['txid'],
+                'vout': 0
+            }],
+            outputs=[{
+                self.nodes[0].get_deterministic_priv_key().address: 50 - 0.00125
+            }],
+        )
+        sigtx = self.nodes[0].signrawtransactionwithkey(
+            hexstring=rawtx,
+            privkeys=[self.nodes[0].get_deterministic_priv_key().key],
+            prevtxs=[{
+                'txid': prevtx['txid'],
+                'vout': 0,
+                'scriptPubKey': prevtx['vout'][0]['scriptPubKey']['hex'],
+            }],
+        )['hex']
+        assert_equal(self.nodes[0].getnetworkinfo()['localrelay'], False)
+        with self.nodes[0].assert_debug_log(['transaction sent in violation of protocol peer=0']):
+            self.nodes[0].p2p.send_message(msg_tx(FromHex(CTransaction(), sigtx)))
+            self.nodes[0].p2p.sync_with_ping()
+            assert_equal(self.nodes[0].getmempoolinfo()['size'], 0)
+
+        self.log.info('Check that txs from rpc are not rejected and relayed to other peers')
+        assert_equal(self.nodes[0].getpeerinfo()[0]['relaytxes'], True)
+        txid = self.nodes[0].testmempoolaccept([sigtx])[0]['txid']
+        with self.nodes[0].assert_debug_log(['received getdata for: tx {} peer=0'.format(txid)]):
+            self.nodes[0].sendrawtransaction(sigtx)
+            self.nodes[0].p2p.wait_for_tx(txid)
+            assert_equal(self.nodes[0].getmempoolinfo()['size'], 1)
+
+
+if __name__ == '__main__':
+    P2PBlocksOnly().main()
diff --git a/test/functional/test_framework/mininode.py b/test/functional/test_framework/mininode.py
index ac7cc068bd..6afdd50176 100755
--- a/test/functional/test_framework/mininode.py
+++ b/test/functional/test_framework/mininode.py
@@ -364,6 +364,14 @@ class P2PInterface(P2PConnection):
 
     # Message receiving helper methods
 
+    def wait_for_tx(self, txid, timeout=60):
+        def test_function():
+            if not self.last_message.get('tx'):
+                return False
+            return self.last_message['tx'].tx.rehash() == txid
+
+        wait_until(test_function, timeout=timeout, lock=mininode_lock)
+
     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)
diff --git a/test/functional/test_runner.py b/test/functional/test_runner.py
index bb9ac58e46..06d3552195 100755
--- a/test/functional/test_runner.py
+++ b/test/functional/test_runner.py
@@ -134,6 +134,7 @@ BASE_SCRIPTS = [
     'rpc_net.py',
     'wallet_keypool.py',
     'p2p_mempool.py',
+    'p2p_blocksonly.py',
     'mining_prioritisetransaction.py',
     'p2p_invalid_locator.py',
     'p2p_invalid_block.py',