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test/functional/wallet_reorgsrestore.py
- This file was added.
| Property | Old Value | New Value |
|---|---|---|
| File Mode | null | 100755 |
| #!/usr/bin/env python3 | |||||
| # Copyright (c) 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 tx status in case of reorgs while wallet being shutdown. | |||||
| Wallet txn status rely on block connection/disconnection for its | |||||
| accuracy. In case of reorgs happening while wallet being shutdown | |||||
| block updates are not going to be received. At wallet loading, we | |||||
| check against chain if confirmed txn are still in chain and change | |||||
| their status if block in which they have been included has been | |||||
| disconnected. | |||||
| """ | |||||
| from decimal import Decimal | |||||
| import os | |||||
| import shutil | |||||
| from test_framework.test_framework import BitcoinTestFramework | |||||
| from test_framework.util import ( | |||||
| assert_equal, | |||||
| connect_nodes, | |||||
| disconnect_nodes, | |||||
| ) | |||||
| class ReorgsRestoreTest(BitcoinTestFramework): | |||||
| def set_test_params(self): | |||||
| self.num_nodes = 3 | |||||
| def skip_test_if_missing_module(self): | |||||
| self.skip_if_no_wallet() | |||||
| def run_test(self): | |||||
| # Send a tx from which to conflict outputs later | |||||
| txid_conflict_from = self.nodes[0].sendtoaddress( | |||||
| self.nodes[0].getnewaddress(), Decimal("10")) | |||||
| self.nodes[0].generate(1) | |||||
| self.sync_blocks() | |||||
| # Disconnect node1 from others to reorg its chain later | |||||
| disconnect_nodes(self.nodes[0], self.nodes[1]) | |||||
| disconnect_nodes(self.nodes[1], self.nodes[2]) | |||||
| connect_nodes(self.nodes[0], self.nodes[2]) | |||||
| # Send a tx to be unconfirmed later | |||||
| txid = self.nodes[0].sendtoaddress( | |||||
| self.nodes[0].getnewaddress(), Decimal("10")) | |||||
| tx = self.nodes[0].gettransaction(txid) | |||||
| self.nodes[0].generate(4) | |||||
| tx_before_reorg = self.nodes[0].gettransaction(txid) | |||||
| assert_equal(tx_before_reorg["confirmations"], 4) | |||||
| # Disconnect node0 from node2 to broadcast a conflict on their | |||||
| # respective chains | |||||
| disconnect_nodes(self.nodes[0], self.nodes[2]) | |||||
| nA = next(tx_out["vout"] for tx_out in self.nodes[0].gettransaction( | |||||
| txid_conflict_from)["details"] if tx_out["amount"] == Decimal("10")) | |||||
| inputs = [] | |||||
| inputs.append({"txid": txid_conflict_from, "vout": nA}) | |||||
| outputs_1 = {} | |||||
| outputs_2 = {} | |||||
| # Create a conflicted tx broadcast on node0 chain and conflicting tx | |||||
| # broadcast on node1 chain. Both spend from txid_conflict_from | |||||
| outputs_1[self.nodes[0].getnewaddress()] = Decimal("9.99998") | |||||
| outputs_2[self.nodes[0].getnewaddress()] = Decimal("9.99998") | |||||
| conflicted = self.nodes[0].signrawtransactionwithwallet( | |||||
| self.nodes[0].createrawtransaction(inputs, outputs_1)) | |||||
| conflicting = self.nodes[0].signrawtransactionwithwallet( | |||||
| self.nodes[0].createrawtransaction(inputs, outputs_2)) | |||||
| conflicted_txid = self.nodes[0].sendrawtransaction(conflicted["hex"]) | |||||
| self.nodes[0].generate(1) | |||||
| conflicting_txid = self.nodes[2].sendrawtransaction(conflicting["hex"]) | |||||
| self.nodes[2].generate(9) | |||||
| # Reconnect node0 and node2 and check that conflicted_txid is | |||||
| # effectively conflicted | |||||
| connect_nodes(self.nodes[0], self.nodes[2]) | |||||
| self.sync_blocks([self.nodes[0], self.nodes[2]]) | |||||
| conflicted = self.nodes[0].gettransaction(conflicted_txid) | |||||
| conflicting = self.nodes[0].gettransaction(conflicting_txid) | |||||
| assert_equal(conflicted["confirmations"], -9) | |||||
| assert_equal(conflicted["walletconflicts"][0], conflicting["txid"]) | |||||
| # Node0 wallet is shutdown | |||||
| self.stop_node(0) | |||||
| self.start_node(0) | |||||
| # The block chain re-orgs and the tx is included in a different block | |||||
| self.nodes[1].generate(9) | |||||
| self.nodes[1].sendrawtransaction(tx["hex"]) | |||||
| self.nodes[1].generate(1) | |||||
| self.nodes[1].sendrawtransaction(conflicted["hex"]) | |||||
| self.nodes[1].generate(1) | |||||
| # Node0 wallet file is loaded on longest sync'ed node1 | |||||
| self.stop_node(1) | |||||
| self.nodes[0].backupwallet( | |||||
| os.path.join( | |||||
| self.nodes[0].datadir, | |||||
| 'wallet.bak')) | |||||
| shutil.copyfile( | |||||
| os.path.join( | |||||
| self.nodes[0].datadir, | |||||
| 'wallet.bak'), | |||||
| os.path.join( | |||||
| self.nodes[1].datadir, | |||||
| 'regtest', | |||||
| 'wallet.dat')) | |||||
| self.start_node(1) | |||||
| tx_after_reorg = self.nodes[1].gettransaction(txid) | |||||
| # Check that normal confirmed tx is confirmed again but with different | |||||
| # blockhash | |||||
| assert_equal(tx_after_reorg["confirmations"], 2) | |||||
| assert(tx_before_reorg["blockhash"] != tx_after_reorg["blockhash"]) | |||||
| conflicted_after_reorg = self.nodes[1].gettransaction(conflicted_txid) | |||||
| # Check that conflicted tx is confirmed again with blockhash different | |||||
| # than previously conflicting tx | |||||
| assert_equal(conflicted_after_reorg["confirmations"], 1) | |||||
| assert(conflicting["blockhash"] != conflicted_after_reorg["blockhash"]) | |||||
| if __name__ == '__main__': | |||||
| ReorgsRestoreTest().main() | |||||