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ee178dfcc1
This helper class is an alternative to CMedianFilter, but without a lot of the special logic and exceptions that we needed while it was still used for consensus.
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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