70 lines
2.8 KiB
Python
Executable file
70 lines
2.8 KiB
Python
Executable file
#!/usr/bin/env python3
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# Copyright (c) 2014-2019 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 resurrection of mined transactions when the blockchain is re-organized."""
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from test_framework.blocktools import create_raw_transaction
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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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class MempoolCoinbaseTest(BitcoinTestFramework):
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def set_test_params(self):
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self.num_nodes = 1
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def skip_test_if_missing_module(self):
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self.skip_if_no_wallet()
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def run_test(self):
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node0_address = self.nodes[0].getnewaddress()
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# Spend block 1/2/3's coinbase transactions
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# Mine a block.
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# Create three more transactions, spending the spends
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# Mine another block.
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# ... make sure all the transactions are confirmed
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# Invalidate both blocks
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# ... make sure all the transactions are put back in the mempool
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# Mine a new block
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# ... make sure all the transactions are confirmed again.
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b = [self.nodes[0].getblockhash(n) for n in range(1, 4)]
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coinbase_txids = [self.nodes[0].getblock(h)['tx'][0] for h in b]
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spends1_raw = [create_raw_transaction(self.nodes[0], txid, node0_address, amount=0.9998) for txid in coinbase_txids]
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spends1_id = [self.nodes[0].sendrawtransaction(tx) for tx in spends1_raw]
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blocks = []
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blocks.extend(self.nodes[0].generate(1))
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spends2_raw = [create_raw_transaction(self.nodes[0], txid, node0_address, amount=0.9996) for txid in spends1_id]
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spends2_id = [self.nodes[0].sendrawtransaction(tx) for tx in spends2_raw]
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blocks.extend(self.nodes[0].generate(1))
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# mempool should be empty, all txns confirmed
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assert_equal(set(self.nodes[0].getrawmempool()), set())
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for txid in spends1_id+spends2_id:
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tx = self.nodes[0].gettransaction(txid)
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assert tx["confirmations"] > 0
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# Use invalidateblock to re-org back
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for node in self.nodes:
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node.invalidateblock(blocks[0])
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# All txns should be back in mempool with 0 confirmations
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assert_equal(set(self.nodes[0].getrawmempool()), set(spends1_id+spends2_id))
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for txid in spends1_id+spends2_id:
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tx = self.nodes[0].gettransaction(txid)
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assert tx["confirmations"] == 0
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# Generate another block, they should all get mined
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self.nodes[0].generate(1)
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# mempool should be empty, all txns confirmed
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assert_equal(set(self.nodes[0].getrawmempool()), set())
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for txid in spends1_id+spends2_id:
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tx = self.nodes[0].gettransaction(txid)
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assert tx["confirmations"] > 0
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if __name__ == '__main__':
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MempoolCoinbaseTest().main()
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