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#!/usr/bin/env python3
# Copyright (c) 2017-2018 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 HD Wallet keypool restore function.
Two nodes. Node1 is under test. Node0 is providing transactions and generating blocks.
- Start node1, shutdown and backup wallet.
- Generate 110 keys (enough to drain the keypool). Store key 90 (in the initial keypool) and key 110 (beyond the initial keypool). Send funds to key 90 and key 110.
- Stop node1, clear the datadir, move wallet file back into the datadir and restart node1.
- connect node1 to node0. Verify that they sync and node1 receives its funds."""
import os
import shutil
from test_framework.test_framework import BitcoinTestFramework
from test_framework.util import (
assert_equal,
connect_nodes_bi,
sync_blocks,
)
class KeypoolRestoreTest(BitcoinTestFramework):
def set_test_params(self):
self.setup_clean_chain = True
self.num_nodes = 2
self.extra_args = [[], ['-keypool=100']]
def skip_test_if_missing_module(self):
self.skip_if_no_wallet()
def run_test(self):
wallet_path = os.path.join(self.nodes[1].datadir, "regtest", "wallets", "wallet.dat")
wallet_backup_path = os.path.join(self.nodes[1].datadir, "wallet.bak")
self.nodes[0].generate(101)
self.log.info("Make backup of wallet")
self.stop_node(1)
shutil.copyfile(wallet_path, wallet_backup_path)
self.start_node(1, self.extra_args[1])
connect_nodes_bi(self.nodes, 0, 1)
self.log.info("Generate keys for wallet")
for _ in range(90):
addr_oldpool = self.nodes[1].getnewaddress()
for _ in range(20):
addr_extpool = self.nodes[1].getnewaddress()
self.log.info("Send funds to wallet")
self.nodes[0].sendtoaddress(addr_oldpool, 10)
self.nodes[0].generate(1)
self.nodes[0].sendtoaddress(addr_extpool, 5)
self.nodes[0].generate(1)
sync_blocks(self.nodes)
self.log.info("Restart node with wallet backup")
self.stop_node(1)
shutil.copyfile(wallet_backup_path, wallet_path)
self.start_node(1, self.extra_args[1])
connect_nodes_bi(self.nodes, 0, 1)
self.sync_all()
self.log.info("Verify keypool is restored and balance is correct")
assert_equal(self.nodes[1].getbalance(), 15)
assert_equal(self.nodes[1].listtransactions()[0]['category'], "receive")
# Check that we have marked all keys up to the used keypool key as used
assert_equal(self.nodes[1].getaddressinfo(self.nodes[1].getnewaddress())['hdkeypath'], "m/0'/0'/110'")
if __name__ == '__main__':
KeypoolRestoreTest().main()
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