#!/usr/bin/env python3 # 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. In this test we connect to one node over p2p, and test tx requests.""" from test_framework.blocktools import create_block, create_coinbase, create_transaction from test_framework.messages import COIN from test_framework.mininode import network_thread_start, P2PDataStore from test_framework.test_framework import BitcoinTestFramework class InvalidTxRequestTest(BitcoinTestFramework): def set_test_params(self): self.num_nodes = 1 self.setup_clean_chain = True self.extra_args = [["-whitelist=127.0.0.1"]] def run_test(self): # Add p2p connection to node0 node = self.nodes[0] # convenience reference to the node node.add_p2p_connection(P2PDataStore()) network_thread_start() node.p2p.wait_for_verack() best_block = self.nodes[0].getbestblockhash() tip = int(best_block, 16) best_block_time = self.nodes[0].getblock(best_block)['time'] block_time = best_block_time + 1 self.log.info("Create a new block with an anyone-can-spend coinbase.") height = 1 block = create_block(tip, create_coinbase(height), block_time) block.solve() # Save the coinbase for later block1 = block tip = block.sha256 node.p2p.send_blocks_and_test([block], node, success=True) self.log.info("Mature the block.") self.nodes[0].generate(100) # b'\x64' is OP_NOTIF # Transaction will be rejected with code 16 (REJECT_INVALID) tx1 = create_transaction(block1.vtx[0], 0, b'\x64', 50 * COIN - 12000) node.p2p.send_txs_and_test([tx1], node, success=False, reject_code=16, reject_reason=b'mandatory-script-verify-flag-failed (Invalid OP_IF construction)') # Verify valid transaction tx1 = create_transaction(block1.vtx[0], 0, b'', 50 * COIN - 12000) node.p2p.send_txs_and_test([tx1], node, success=True) if __name__ == '__main__': InvalidTxRequestTest().main()