diff options
Diffstat (limited to 'test/functional/walletbackup.py')
| -rwxr-xr-x | test/functional/walletbackup.py | 198 |
1 files changed, 198 insertions, 0 deletions
diff --git a/test/functional/walletbackup.py b/test/functional/walletbackup.py new file mode 100755 index 0000000000..af1718572f --- /dev/null +++ b/test/functional/walletbackup.py @@ -0,0 +1,198 @@ +#!/usr/bin/env python3 +# Copyright (c) 2014-2016 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 wallet backup features. + +Test case is: +4 nodes. 1 2 and 3 send transactions between each other, +fourth node is a miner. +1 2 3 each mine a block to start, then +Miner creates 100 blocks so 1 2 3 each have 50 mature +coins to spend. +Then 5 iterations of 1/2/3 sending coins amongst +themselves to get transactions in the wallets, +and the miner mining one block. + +Wallets are backed up using dumpwallet/backupwallet. +Then 5 more iterations of transactions and mining a block. + +Miner then generates 101 more blocks, so any +transaction fees paid mature. + +Sanity check: + Sum(1,2,3,4 balances) == 114*50 + +1/2/3 are shutdown, and their wallets erased. +Then restore using wallet.dat backup. And +confirm 1/2/3/4 balances are same as before. + +Shutdown again, restore using importwallet, +and confirm again balances are correct. +""" + +from test_framework.test_framework import BitcoinTestFramework +from test_framework.util import * +from random import randint + +class WalletBackupTest(BitcoinTestFramework): + + def __init__(self): + super().__init__() + self.setup_clean_chain = True + self.num_nodes = 4 + # nodes 1, 2,3 are spenders, let's give them a keypool=100 + self.extra_args = [["-keypool=100"], ["-keypool=100"], ["-keypool=100"], []] + + # This mirrors how the network was setup in the bash test + def setup_network(self, split=False): + self.nodes = start_nodes(self.num_nodes, self.options.tmpdir, self.extra_args) + connect_nodes(self.nodes[0], 3) + connect_nodes(self.nodes[1], 3) + connect_nodes(self.nodes[2], 3) + connect_nodes(self.nodes[2], 0) + self.is_network_split=False + self.sync_all() + + def one_send(self, from_node, to_address): + if (randint(1,2) == 1): + amount = Decimal(randint(1,10)) / Decimal(10) + self.nodes[from_node].sendtoaddress(to_address, amount) + + def do_one_round(self): + a0 = self.nodes[0].getnewaddress() + a1 = self.nodes[1].getnewaddress() + a2 = self.nodes[2].getnewaddress() + + self.one_send(0, a1) + self.one_send(0, a2) + self.one_send(1, a0) + self.one_send(1, a2) + self.one_send(2, a0) + self.one_send(2, a1) + + # Have the miner (node3) mine a block. + # Must sync mempools before mining. + sync_mempools(self.nodes) + self.nodes[3].generate(1) + sync_blocks(self.nodes) + + # As above, this mirrors the original bash test. + def start_three(self): + self.nodes[0] = start_node(0, self.options.tmpdir) + self.nodes[1] = start_node(1, self.options.tmpdir) + self.nodes[2] = start_node(2, self.options.tmpdir) + connect_nodes(self.nodes[0], 3) + connect_nodes(self.nodes[1], 3) + connect_nodes(self.nodes[2], 3) + connect_nodes(self.nodes[2], 0) + + def stop_three(self): + stop_node(self.nodes[0], 0) + stop_node(self.nodes[1], 1) + stop_node(self.nodes[2], 2) + + def erase_three(self): + os.remove(self.options.tmpdir + "/node0/regtest/wallet.dat") + os.remove(self.options.tmpdir + "/node1/regtest/wallet.dat") + os.remove(self.options.tmpdir + "/node2/regtest/wallet.dat") + + def run_test(self): + self.log.info("Generating initial blockchain") + self.nodes[0].generate(1) + sync_blocks(self.nodes) + self.nodes[1].generate(1) + sync_blocks(self.nodes) + self.nodes[2].generate(1) + sync_blocks(self.nodes) + self.nodes[3].generate(100) + sync_blocks(self.nodes) + + assert_equal(self.nodes[0].getbalance(), 50) + assert_equal(self.nodes[1].getbalance(), 50) + assert_equal(self.nodes[2].getbalance(), 50) + assert_equal(self.nodes[3].getbalance(), 0) + + self.log.info("Creating transactions") + # Five rounds of sending each other transactions. + for i in range(5): + self.do_one_round() + + self.log.info("Backing up") + tmpdir = self.options.tmpdir + self.nodes[0].backupwallet(tmpdir + "/node0/wallet.bak") + self.nodes[0].dumpwallet(tmpdir + "/node0/wallet.dump") + self.nodes[1].backupwallet(tmpdir + "/node1/wallet.bak") + self.nodes[1].dumpwallet(tmpdir + "/node1/wallet.dump") + self.nodes[2].backupwallet(tmpdir + "/node2/wallet.bak") + self.nodes[2].dumpwallet(tmpdir + "/node2/wallet.dump") + + self.log.info("More transactions") + for i in range(5): + self.do_one_round() + + # Generate 101 more blocks, so any fees paid mature + self.nodes[3].generate(101) + self.sync_all() + + balance0 = self.nodes[0].getbalance() + balance1 = self.nodes[1].getbalance() + balance2 = self.nodes[2].getbalance() + balance3 = self.nodes[3].getbalance() + total = balance0 + balance1 + balance2 + balance3 + + # At this point, there are 214 blocks (103 for setup, then 10 rounds, then 101.) + # 114 are mature, so the sum of all wallets should be 114 * 50 = 5700. + assert_equal(total, 5700) + + ## + # Test restoring spender wallets from backups + ## + self.log.info("Restoring using wallet.dat") + self.stop_three() + self.erase_three() + + # Start node2 with no chain + shutil.rmtree(self.options.tmpdir + "/node2/regtest/blocks") + shutil.rmtree(self.options.tmpdir + "/node2/regtest/chainstate") + + # Restore wallets from backup + shutil.copyfile(tmpdir + "/node0/wallet.bak", tmpdir + "/node0/regtest/wallet.dat") + shutil.copyfile(tmpdir + "/node1/wallet.bak", tmpdir + "/node1/regtest/wallet.dat") + shutil.copyfile(tmpdir + "/node2/wallet.bak", tmpdir + "/node2/regtest/wallet.dat") + + self.log.info("Re-starting nodes") + self.start_three() + sync_blocks(self.nodes) + + assert_equal(self.nodes[0].getbalance(), balance0) + assert_equal(self.nodes[1].getbalance(), balance1) + assert_equal(self.nodes[2].getbalance(), balance2) + + self.log.info("Restoring using dumped wallet") + self.stop_three() + self.erase_three() + + #start node2 with no chain + shutil.rmtree(self.options.tmpdir + "/node2/regtest/blocks") + shutil.rmtree(self.options.tmpdir + "/node2/regtest/chainstate") + + self.start_three() + + assert_equal(self.nodes[0].getbalance(), 0) + assert_equal(self.nodes[1].getbalance(), 0) + assert_equal(self.nodes[2].getbalance(), 0) + + self.nodes[0].importwallet(tmpdir + "/node0/wallet.dump") + self.nodes[1].importwallet(tmpdir + "/node1/wallet.dump") + self.nodes[2].importwallet(tmpdir + "/node2/wallet.dump") + + sync_blocks(self.nodes) + + assert_equal(self.nodes[0].getbalance(), balance0) + assert_equal(self.nodes[1].getbalance(), balance1) + assert_equal(self.nodes[2].getbalance(), balance2) + + +if __name__ == '__main__': + WalletBackupTest().main() |