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200 lines
7.1 KiB
200 lines
7.1 KiB
#!/usr/bin/env python3 |
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# Copyright (c) 2014-2016 The Bitcoin 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 setup_chain(self): |
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logging.info("Initializing test directory "+self.options.tmpdir) |
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initialize_chain_clean(self.options.tmpdir, 4) |
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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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# nodes 1, 2,3 are spenders, let's give them a keypool=100 |
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extra_args = [["-keypool=100"], ["-keypool=100"], ["-keypool=100"], []] |
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self.nodes = start_nodes(4, self.options.tmpdir, 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)) / Decimal(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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# 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(100) |
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sync_blocks(self.nodes) |
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assert_equal(self.nodes[0].getbalance(), 50) |
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assert_equal(self.nodes[1].getbalance(), 50) |
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assert_equal(self.nodes[2].getbalance(), 50) |
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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/wallet.bak") |
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self.nodes[0].dumpwallet(tmpdir + "/node0/wallet.dump") |
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self.nodes[1].backupwallet(tmpdir + "/node1/wallet.bak") |
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self.nodes[1].dumpwallet(tmpdir + "/node1/wallet.dump") |
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self.nodes[2].backupwallet(tmpdir + "/node2/wallet.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 101 more blocks, so any fees paid mature |
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self.nodes[3].generate(101) |
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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 214 blocks (103 for setup, then 10 rounds, then 101.) |
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# 114 are mature, so the sum of all wallets should be 114 * 50 = 5700. |
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assert_equal(total, 5700) |
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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/wallet.bak", tmpdir + "/node0/regtest/wallet.dat") |
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shutil.copyfile(tmpdir + "/node1/wallet.bak", tmpdir + "/node1/regtest/wallet.dat") |
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shutil.copyfile(tmpdir + "/node2/wallet.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/wallet.dump") |
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self.nodes[1].importwallet(tmpdir + "/node1/wallet.dump") |
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self.nodes[2].importwallet(tmpdir + "/node2/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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if __name__ == '__main__': |
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WalletBackupTest().main()
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