git / moonbite-core / test/functional/mempool_resurrect.py · raw

#!/usr/bin/env python3# Copyright (c) 2014-2019 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.blocktools import create_raw_transactionfrom test_framework.test_framework import BitcoinTestFrameworkfrom test_framework.util import assert_equalclass MempoolCoinbaseTest(BitcoinTestFramework):    def set_test_params(self):        self.num_nodes = 1    def skip_test_if_missing_module(self):        self.skip_if_no_wallet()    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_raw_transaction(self.nodes[0], txid, node0_address, amount=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_raw_transaction(self.nodes[0], txid, node0_address, amount=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        for node in self.nodes:            node.invalidateblock(blocks[0])        # All txns should be back in mempool with 0 confirmations        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"] > 0if __name__ == '__main__':    MempoolCoinbaseTest().main()