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78 lines
3.1 KiB
78 lines
3.1 KiB
#!/usr/bin/env python3
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# Copyright (c) 2014-2016 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.test_framework import BitcoinTestFramework
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from test_framework.util import *
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# Create one-input, one-output, no-fee transaction:
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class MempoolCoinbaseTest(BitcoinTestFramework):
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def __init__(self):
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super().__init__()
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self.num_nodes = 1
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self.setup_clean_chain = False
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def setup_network(self):
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# Just need one node for this test
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args = ["-checkmempool", "-debug=mempool"]
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self.nodes = []
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self.nodes.append(start_node(0, self.options.tmpdir, args))
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self.is_network_split = False
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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_tx(self.nodes[0], txid, node0_address, 49.99) 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_tx(self.nodes[0], txid, node0_address, 49.98) 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; all transactions should
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# end up unconfirmed and back in the mempool
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for node in self.nodes:
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node.invalidateblock(blocks[0])
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# mempool should be empty, all txns confirmed
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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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