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c0e27fc825
This adds more defensiveness around dumping or backing up wallets, so that the directory and filepaths are always available (even if they were on transient storage that was removed), and that they never overwrite other files.
215 lines
7.8 KiB
Python
Executable File
215 lines
7.8 KiB
Python
Executable File
#!/usr/bin/env python3
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# Copyright (c) 2014-2016 The Bitcoin Core developers
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# Copyright (c) 2022 The Dogecoin Core developers
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# Distributed under the MIT software license, see the accompanying
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# file COPYING or http://www.opensource.org/licenses/mit-license.php.
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"""
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Exercise the wallet backup code. Ported from walletbackup.sh.
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Test case is:
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4 nodes. 1 2 and 3 send transactions between each other,
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fourth node is a miner.
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1 2 3 each mine a block to start, then
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Miner creates 100 blocks so 1 2 3 each have 50 mature
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coins to spend.
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Then 5 iterations of 1/2/3 sending coins amongst
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themselves to get transactions in the wallets,
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and the miner mining one block.
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Wallets are backed up using dumpwallet/backupwallet.
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Then 5 more iterations of transactions and mining a block.
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Miner then generates 101 more blocks, so any
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transaction fees paid mature.
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Sanity check:
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Sum(1,2,3,4 balances) == 114*50
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1/2/3 are shutdown, and their wallets erased.
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Then restore using wallet.dat backup. And
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confirm 1/2/3/4 balances are same as before.
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Shutdown again, restore using importwallet,
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and confirm again balances are correct.
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"""
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from test_framework.test_framework import BitcoinTestFramework
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from test_framework.util import *
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from random import randint
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import logging
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logging.basicConfig(format='%(levelname)s: %(message)s', level=logging.INFO, stream=sys.stdout)
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class WalletBackupTest(BitcoinTestFramework):
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def __init__(self):
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super().__init__()
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self.setup_clean_chain = True
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self.num_nodes = 4
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# nodes 1, 2,3 are spenders, let's give them a keypool=100
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self.extra_args = [["-keypool=100"], ["-keypool=100"], ["-keypool=100"], []]
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# This mirrors how the network was setup in the bash test
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def setup_network(self, split=False):
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self.nodes = start_nodes(self.num_nodes, self.options.tmpdir, self.extra_args)
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connect_nodes(self.nodes[0], 3)
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connect_nodes(self.nodes[1], 3)
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connect_nodes(self.nodes[2], 3)
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connect_nodes(self.nodes[2], 0)
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self.is_network_split=False
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self.sync_all()
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def one_send(self, from_node, to_address):
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if (randint(1,2) == 1):
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amount = Decimal(randint(1,10))
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self.nodes[from_node].sendtoaddress(to_address, amount)
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def do_one_round(self):
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a0 = self.nodes[0].getnewaddress()
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a1 = self.nodes[1].getnewaddress()
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a2 = self.nodes[2].getnewaddress()
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self.one_send(0, a1)
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self.one_send(0, a2)
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self.one_send(1, a0)
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self.one_send(1, a2)
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self.one_send(2, a0)
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self.one_send(2, a1)
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# Have the miner (node3) mine a block.
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# Must sync mempools before mining.
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sync_mempools(self.nodes)
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self.nodes[3].generate(1)
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sync_blocks(self.nodes)
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# As above, this mirrors the original bash test.
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def start_three(self):
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self.nodes[0] = start_node(0, self.options.tmpdir)
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self.nodes[1] = start_node(1, self.options.tmpdir)
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self.nodes[2] = start_node(2, self.options.tmpdir)
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connect_nodes(self.nodes[0], 3)
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connect_nodes(self.nodes[1], 3)
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connect_nodes(self.nodes[2], 3)
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connect_nodes(self.nodes[2], 0)
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def stop_three(self):
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stop_node(self.nodes[0], 0)
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stop_node(self.nodes[1], 1)
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stop_node(self.nodes[2], 2)
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def erase_three(self):
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os.remove(self.options.tmpdir + "/node0/regtest/wallet.dat")
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os.remove(self.options.tmpdir + "/node1/regtest/wallet.dat")
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os.remove(self.options.tmpdir + "/node2/regtest/wallet.dat")
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def run_test(self):
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logging.info("Generating initial blockchain")
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self.nodes[0].generate(1)
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sync_blocks(self.nodes)
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self.nodes[1].generate(1)
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sync_blocks(self.nodes)
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self.nodes[2].generate(1)
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sync_blocks(self.nodes)
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self.nodes[3].generate(60)
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sync_blocks(self.nodes)
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assert_equal(self.nodes[0].getbalance(), 500000)
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assert_equal(self.nodes[1].getbalance(), 500000)
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assert_equal(self.nodes[2].getbalance(), 500000)
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assert_equal(self.nodes[3].getbalance(), 0)
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logging.info("Creating transactions")
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# Five rounds of sending each other transactions.
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for i in range(5):
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self.do_one_round()
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logging.info("Backing up")
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tmpdir = self.options.tmpdir
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self.nodes[0].backupwallet(tmpdir + "/node0/wallet0.bak")
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self.nodes[0].dumpwallet(tmpdir + "/node0/wallet.dump")
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self.nodes[1].backupwallet(tmpdir + "/node1/wallet1.bak")
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self.nodes[1].dumpwallet(tmpdir + "/node1/wallet.dump")
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self.nodes[2].backupwallet(tmpdir + "/node2/wallet2.bak")
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self.nodes[2].dumpwallet(tmpdir + "/node2/wallet.dump")
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logging.info("More transactions")
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for i in range(5):
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self.do_one_round()
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# Generate 61 more blocks, so any fees paid mature
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self.nodes[3].generate(61)
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self.sync_all()
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balance0 = self.nodes[0].getbalance()
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balance1 = self.nodes[1].getbalance()
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balance2 = self.nodes[2].getbalance()
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balance3 = self.nodes[3].getbalance()
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total = balance0 + balance1 + balance2 + balance3
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# At this point, there are 134 blocks (63 for setup, then 10 rounds, then 61.)
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# 74 are mature, so the sum of all wallets should be 74 * 500000 = 37000000.
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assert_equal(total, 37000000)
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##
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# Test restoring spender wallets from backups
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##
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logging.info("Restoring using wallet.dat")
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self.stop_three()
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self.erase_three()
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# Start node2 with no chain
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shutil.rmtree(self.options.tmpdir + "/node2/regtest/blocks")
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shutil.rmtree(self.options.tmpdir + "/node2/regtest/chainstate")
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# Restore wallets from backup
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shutil.copyfile(tmpdir + "/node0/regtest/backups/wallet0.bak", tmpdir + "/node0/regtest/wallet.dat")
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shutil.copyfile(tmpdir + "/node1/regtest/backups/wallet1.bak", tmpdir + "/node1/regtest/wallet.dat")
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shutil.copyfile(tmpdir + "/node2/regtest/backups/wallet2.bak", tmpdir + "/node2/regtest/wallet.dat")
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logging.info("Re-starting nodes")
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self.start_three()
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sync_blocks(self.nodes)
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assert_equal(self.nodes[0].getbalance(), balance0)
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assert_equal(self.nodes[1].getbalance(), balance1)
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assert_equal(self.nodes[2].getbalance(), balance2)
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logging.info("Restoring using dumped wallet")
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self.stop_three()
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self.erase_three()
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#start node2 with no chain
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shutil.rmtree(self.options.tmpdir + "/node2/regtest/blocks")
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shutil.rmtree(self.options.tmpdir + "/node2/regtest/chainstate")
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self.start_three()
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assert_equal(self.nodes[0].getbalance(), 0)
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assert_equal(self.nodes[1].getbalance(), 0)
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assert_equal(self.nodes[2].getbalance(), 0)
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self.nodes[0].importwallet(tmpdir + "/node0/regtest/backups/wallet.dump")
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self.nodes[1].importwallet(tmpdir + "/node1/regtest/backups/wallet.dump")
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self.nodes[2].importwallet(tmpdir + "/node2/regtest/backups/wallet.dump")
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sync_blocks(self.nodes)
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assert_equal(self.nodes[0].getbalance(), balance0)
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assert_equal(self.nodes[1].getbalance(), balance1)
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assert_equal(self.nodes[2].getbalance(), balance2)
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# start a node that writes backups with a -backupdir
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initialize_datadir(tmpdir, 4)
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backupdir = tmpdir + "/onebackup"
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os.makedirs(backupdir)
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backupdirnode = start_node(4, tmpdir, extra_args=["-backupdir=" + backupdir])
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backupdirnode.dumpwallet('backupwallet.dump')
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backupdirnode.importwallet(tmpdir + "/onebackup/backupwallet.dump")
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stop_node(backupdirnode, 4)
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assert(os.path.exists(tmpdir + "/onebackup/backupwallet.dump"))
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if __name__ == '__main__':
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WalletBackupTest().main()
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