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#!/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 removing undeleted pruned blk files on startup."""
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import os
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from test_framework.test_framework import BitcoinTestFramework
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class FeatureRemovePrunedFilesOnStartupTest(BitcoinTestFramework):
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def set_test_params(self):
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self.num_nodes = 1
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self.extra_args = [["-fastprune", "-prune=1"]]
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def mine_batches(self, blocks):
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n = blocks // 250
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for _ in range(n):
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self.generate(self.nodes[0], 250)
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self.generate(self.nodes[0], blocks % 250)
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self.sync_blocks()
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def run_test(self):
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blk0 = self.nodes[0].chain_path / "blocks" / "blk00000.dat"
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rev0 = self.nodes[0].chain_path / "blocks" / "rev00000.dat"
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blk1 = self.nodes[0].chain_path / "blocks" / "blk00001.dat"
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rev1 = self.nodes[0].chain_path / "blocks" / "rev00001.dat"
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self.mine_batches(800)
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fo1 = os.open(blk0, os.O_RDONLY)
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fo2 = os.open(rev1, os.O_RDONLY)
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fd1 = os.fdopen(fo1)
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fd2 = os.fdopen(fo2)
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self.nodes[0].pruneblockchain(600)
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# Windows systems will not remove files with an open fd
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if os.name != 'nt':
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assert not os.path.exists(blk0)
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assert not os.path.exists(rev0)
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assert not os.path.exists(blk1)
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assert not os.path.exists(rev1)
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else:
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assert os.path.exists(blk0)
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assert not os.path.exists(rev0)
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assert not os.path.exists(blk1)
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assert os.path.exists(rev1)
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# Check that the files are removed on restart once the fds are closed
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fd1.close()
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fd2.close()
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self.restart_node(0)
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assert not os.path.exists(blk0)
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assert not os.path.exists(rev1)
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if __name__ == '__main__':
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FeatureRemovePrunedFilesOnStartupTest().main()
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