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#!/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 the zapwallettxes functionality.
- start two bitcoind nodes
- create two transactions on node 0 - one is confirmed and one is unconfirmed.
- restart node 0 and verify that both the confirmed and the unconfirmed
transactions are still available.
- restart node 0 with zapwallettxes and persistmempool, and verify that both
the confirmed and the unconfirmed transactions are still available.
- restart node 0 with just zapwallettxes and verify that the confirmed
transactions are still available, but that the unconfirmed transaction has
been zapped.
"""
from test_framework.test_framework import BitcoinTestFramework
from test_framework.util import (
assert_equal,
assert_raises_rpc_error,
wait_until,
)
class ZapWalletTXesTest (BitcoinTestFramework):
def set_test_params(self):
self.setup_clean_chain = True
self.num_nodes = 2
def skip_test_if_missing_module(self):
self.skip_if_no_wallet()
def run_test(self):
self.log.info("Mining blocks...")
self.nodes[0].generate(1)
self.sync_all()
self.nodes[1].generate(100)
self.sync_all()
# This transaction will be confirmed
txid1 = self.nodes[0].sendtoaddress(self.nodes[1].getnewaddress(), 10)
self.nodes[0].generate(1)
self.sync_all()
# This transaction will not be confirmed
txid2 = self.nodes[0].sendtoaddress(self.nodes[1].getnewaddress(), 20)
# Confirmed and unconfirmed transactions are now in the wallet.
assert_equal(self.nodes[0].gettransaction(txid1)['txid'], txid1)
assert_equal(self.nodes[0].gettransaction(txid2)['txid'], txid2)
# Restart node0. Both confirmed and unconfirmed transactions remain in the wallet.
self.restart_node(0)
assert_equal(self.nodes[0].gettransaction(txid1)['txid'], txid1)
assert_equal(self.nodes[0].gettransaction(txid2)['txid'], txid2)
# Restart node0 with zapwallettxes and persistmempool. The unconfirmed
# transaction is zapped from the wallet, but is re-added when the mempool is reloaded.
self.restart_node(0, ["-persistmempool=1", "-zapwallettxes=2"])
wait_until(lambda: self.nodes[0].getmempoolinfo()['size'] == 1, timeout=3)
self.nodes[0].syncwithvalidationinterfacequeue() # Flush mempool to wallet
assert_equal(self.nodes[0].gettransaction(txid1)['txid'], txid1)
assert_equal(self.nodes[0].gettransaction(txid2)['txid'], txid2)
# Restart node0 with zapwallettxes, but not persistmempool.
# The unconfirmed transaction is zapped and is no longer in the wallet.
self.restart_node(0, ["-zapwallettxes=2"])
# tx1 is still be available because it was confirmed
assert_equal(self.nodes[0].gettransaction(txid1)['txid'], txid1)
# This will raise an exception because the unconfirmed transaction has been zapped
assert_raises_rpc_error(-5, 'Invalid or non-wallet transaction id', self.nodes[0].gettransaction, txid2)
if __name__ == '__main__':
ZapWalletTXesTest().main()
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