aboutsummaryrefslogtreecommitdiff
path: root/test/functional/mempool_resurrect.py
blob: 7ae0d95b90b13544fe7e273ed33f1ff6052a55ba (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
#!/usr/bin/env python3
# Copyright (c) 2014-2018 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.blocktools import create_raw_transaction
from test_framework.util import *


class MempoolCoinbaseTest(BitcoinTestFramework):
    def set_test_params(self):
        self.num_nodes = 1

    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, 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, 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()