mirror of https://github.com/bitcoin/bitcoin.git
66 lines
2.4 KiB
Python
Executable File
66 lines
2.4 KiB
Python
Executable File
#!/usr/bin/env python3
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# Copyright (c) 2022 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 logic for setting -maxtipage on command line.
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Nodes don't consider themselves out of "initial block download" as long as
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their best known block header time is more than -maxtipage in the past.
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"""
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import time
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from test_framework.test_framework import BitcoinTestFramework
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from test_framework.util import assert_equal
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DEFAULT_MAX_TIP_AGE = 24 * 60 * 60
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class MaxTipAgeTest(BitcoinTestFramework):
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def set_test_params(self):
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self.setup_clean_chain = True
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self.num_nodes = 2
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def test_maxtipage(self, maxtipage, set_parameter=True, test_deltas=True):
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node_miner = self.nodes[0]
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node_ibd = self.nodes[1]
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self.restart_node(1, [f'-maxtipage={maxtipage}'] if set_parameter else None)
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self.connect_nodes(0, 1)
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cur_time = int(time.time())
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if test_deltas:
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# tips older than maximum age -> stay in IBD
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node_ibd.setmocktime(cur_time)
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for delta in [5, 4, 3, 2, 1]:
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node_miner.setmocktime(cur_time - maxtipage - delta)
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self.generate(node_miner, 1)
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assert_equal(node_ibd.getblockchaininfo()['initialblockdownload'], True)
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# tip within maximum age -> leave IBD
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node_miner.setmocktime(max(cur_time - maxtipage, 0))
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self.generate(node_miner, 1)
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assert_equal(node_ibd.getblockchaininfo()['initialblockdownload'], False)
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# reset time to system time so we don't have a time offset with the ibd node the next
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# time we connect to it, ensuring TimeOffsets::WarnIfOutOfSync() doesn't output to stderr
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node_miner.setmocktime(0)
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def run_test(self):
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self.log.info("Test IBD with maximum tip age of 24 hours (default).")
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self.test_maxtipage(DEFAULT_MAX_TIP_AGE, set_parameter=False)
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for hours in [20, 10, 5, 2, 1]:
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maxtipage = hours * 60 * 60
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self.log.info(f"Test IBD with maximum tip age of {hours} hours (-maxtipage={maxtipage}).")
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self.test_maxtipage(maxtipage)
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max_long_val = 9223372036854775807
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self.log.info(f"Test IBD with highest allowable maximum tip age ({max_long_val}).")
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self.test_maxtipage(max_long_val, test_deltas=False)
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if __name__ == '__main__':
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MaxTipAgeTest().main()
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