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0053e16714
Remove the BIP61 REJECT code from error messages and logs when a transaction is rejected. BIP61 support was removed from Bitcoin Core in fa25f43ac5692082dba3f90456c501eb08f1b75c. The REJECT codes will be removed from the codebase entirely in the following commit.
91 lines
3.8 KiB
Python
Executable File
91 lines
3.8 KiB
Python
Executable File
#!/usr/bin/env python3
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# Copyright (c) 2019 The Bitcoin Core developers
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# Distributed under the MIT software license, see the accompanying
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# file COPYING or http://www.opensource.org/licenses/mit-license.php.
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"""Test that we reject low difficulty headers to prevent our block tree from filling up with useless bloat"""
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from test_framework.messages import (
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CBlockHeader,
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FromHex,
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)
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from test_framework.mininode import (
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P2PInterface,
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msg_headers,
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)
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from test_framework.test_framework import BitcoinTestFramework
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import os
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class RejectLowDifficultyHeadersTest(BitcoinTestFramework):
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def set_test_params(self):
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self.setup_clean_chain = True
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self.chain = 'testnet3' # Use testnet chain because it has an early checkpoint
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self.num_nodes = 2
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def add_options(self, parser):
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parser.add_argument(
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'--datafile',
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default='data/blockheader_testnet3.hex',
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help='Test data file (default: %(default)s)',
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)
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def run_test(self):
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self.log.info("Read headers data")
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self.headers_file_path = os.path.join(os.path.dirname(os.path.realpath(__file__)), self.options.datafile)
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with open(self.headers_file_path, encoding='utf-8') as headers_data:
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h_lines = [l.strip() for l in headers_data.readlines()]
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# The headers data is taken from testnet3 for early blocks from genesis until the first checkpoint. There are
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# two headers with valid POW at height 1 and 2, forking off from genesis. They are indicated by the FORK_PREFIX.
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FORK_PREFIX = 'fork:'
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self.headers = [l for l in h_lines if not l.startswith(FORK_PREFIX)]
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self.headers_fork = [l[len(FORK_PREFIX):] for l in h_lines if l.startswith(FORK_PREFIX)]
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self.headers = [FromHex(CBlockHeader(), h) for h in self.headers]
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self.headers_fork = [FromHex(CBlockHeader(), h) for h in self.headers_fork]
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self.log.info("Feed all non-fork headers, including and up to the first checkpoint")
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self.nodes[0].add_p2p_connection(P2PInterface())
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self.nodes[0].p2p.send_message(msg_headers(self.headers))
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self.nodes[0].p2p.sync_with_ping()
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assert {
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'height': 546,
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'hash': '000000002a936ca763904c3c35fce2f3556c559c0214345d31b1bcebf76acb70',
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'branchlen': 546,
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'status': 'headers-only',
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} in self.nodes[0].getchaintips()
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self.log.info("Feed all fork headers (fails due to checkpoint)")
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with self.nodes[0].assert_debug_log(['bad-fork-prior-to-checkpoint']):
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self.nodes[0].p2p.send_message(msg_headers(self.headers_fork))
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self.nodes[0].p2p.wait_for_disconnect()
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self.log.info("Feed all fork headers (succeeds without checkpoint)")
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# On node 0 it succeeds because checkpoints are disabled
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self.restart_node(0, extra_args=['-nocheckpoints'])
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self.nodes[0].add_p2p_connection(P2PInterface())
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self.nodes[0].p2p.send_message(msg_headers(self.headers_fork))
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self.nodes[0].p2p.sync_with_ping()
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assert {
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"height": 2,
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"hash": "00000000b0494bd6c3d5ff79c497cfce40831871cbf39b1bc28bd1dac817dc39",
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"branchlen": 2,
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"status": "headers-only",
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} in self.nodes[0].getchaintips()
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# On node 1 it succeeds because no checkpoint has been reached yet by a chain tip
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self.nodes[1].add_p2p_connection(P2PInterface())
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self.nodes[1].p2p.send_message(msg_headers(self.headers_fork))
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self.nodes[1].p2p.sync_with_ping()
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assert {
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"height": 2,
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"hash": "00000000b0494bd6c3d5ff79c497cfce40831871cbf39b1bc28bd1dac817dc39",
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"branchlen": 2,
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"status": "headers-only",
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} in self.nodes[1].getchaintips()
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if __name__ == '__main__':
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RejectLowDifficultyHeadersTest().main()
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