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-rwxr-xr-xtest/rpc-tests/mempool_resurrect_test.py77
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diff --git a/test/rpc-tests/mempool_resurrect_test.py b/test/rpc-tests/mempool_resurrect_test.py
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+++ b/test/rpc-tests/mempool_resurrect_test.py
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+#!/usr/bin/env python3
+# Copyright (c) 2014-2016 The Bitcoin Core developers
+# Distributed under the MIT software license, see the accompanying
+# file COPYING or http://www.opensource.org/licenses/mit-license.php.
+"""Test resurrection of mined transactions when the blockchain is re-organized."""
+
+from test_framework.test_framework import BitcoinTestFramework
+from test_framework.util import *
+
+# Create one-input, one-output, no-fee transaction:
+class MempoolCoinbaseTest(BitcoinTestFramework):
+
+ def __init__(self):
+ super().__init__()
+ self.num_nodes = 1
+ self.setup_clean_chain = False
+
+ def setup_network(self):
+ # Just need one node for this test
+ args = ["-checkmempool"]
+ self.nodes = []
+ self.nodes.append(start_node(0, self.options.tmpdir, args))
+ self.is_network_split = False
+
+ def run_test(self):
+ node0_address = self.nodes[0].getnewaddress()
+ # Spend block 1/2/3's coinbase transactions
+ # Mine a block.
+ # Create three more transactions, spending the spends
+ # Mine another block.
+ # ... make sure all the transactions are confirmed
+ # Invalidate both blocks
+ # ... make sure all the transactions are put back in the mempool
+ # Mine a new block
+ # ... make sure all the transactions are confirmed again.
+
+ b = [ self.nodes[0].getblockhash(n) for n in range(1, 4) ]
+ coinbase_txids = [ self.nodes[0].getblock(h)['tx'][0] for h in b ]
+ spends1_raw = [ create_tx(self.nodes[0], txid, node0_address, 49.99) for txid in coinbase_txids ]
+ spends1_id = [ self.nodes[0].sendrawtransaction(tx) for tx in spends1_raw ]
+
+ blocks = []
+ blocks.extend(self.nodes[0].generate(1))
+
+ spends2_raw = [ create_tx(self.nodes[0], txid, node0_address, 49.98) for txid in spends1_id ]
+ spends2_id = [ self.nodes[0].sendrawtransaction(tx) for tx in spends2_raw ]
+
+ blocks.extend(self.nodes[0].generate(1))
+
+ # mempool should be empty, all txns confirmed
+ assert_equal(set(self.nodes[0].getrawmempool()), set())
+ for txid in spends1_id+spends2_id:
+ tx = self.nodes[0].gettransaction(txid)
+ assert(tx["confirmations"] > 0)
+
+ # Use invalidateblock to re-org back; all transactions should
+ # end up unconfirmed and back in the mempool
+ for node in self.nodes:
+ node.invalidateblock(blocks[0])
+
+ # mempool should be empty, all txns confirmed
+ assert_equal(set(self.nodes[0].getrawmempool()), set(spends1_id+spends2_id))
+ for txid in spends1_id+spends2_id:
+ tx = self.nodes[0].gettransaction(txid)
+ assert(tx["confirmations"] == 0)
+
+ # Generate another block, they should all get mined
+ self.nodes[0].generate(1)
+ # mempool should be empty, all txns confirmed
+ assert_equal(set(self.nodes[0].getrawmempool()), set())
+ for txid in spends1_id+spends2_id:
+ tx = self.nodes[0].gettransaction(txid)
+ assert(tx["confirmations"] > 0)
+
+
+if __name__ == '__main__':
+ MempoolCoinbaseTest().main()