You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
200 lines
7.1 KiB
200 lines
7.1 KiB
#!/usr/bin/env python2 |
|
# Copyright (c) 2014 The Bitcoin Core developers |
|
# Distributed under the MIT software license, see the accompanying |
|
# file COPYING or http://www.opensource.org/licenses/mit-license.php. |
|
|
|
""" |
|
Exercise the wallet backup code. Ported from walletbackup.sh. |
|
|
|
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 |
|
import logging |
|
logging.basicConfig(format='%(levelname)s:%(message)s', level=logging.INFO) |
|
|
|
class WalletBackupTest(BitcoinTestFramework): |
|
|
|
def setup_chain(self): |
|
logging.info("Initializing test directory "+self.options.tmpdir) |
|
initialize_chain_clean(self.options.tmpdir, 4) |
|
|
|
# This mirrors how the network was setup in the bash test |
|
def setup_network(self, split=False): |
|
# nodes 1, 2,3 are spenders, let's give them a keypool=100 |
|
extra_args = [["-keypool=100"], ["-keypool=100"], ["-keypool=100"], []] |
|
self.nodes = start_nodes(4, self.options.tmpdir, 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) |
|
|
|
# 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): |
|
logging.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) |
|
|
|
logging.info("Creating transactions") |
|
# Five rounds of sending each other transactions. |
|
for i in range(5): |
|
self.do_one_round() |
|
|
|
logging.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") |
|
|
|
logging.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 |
|
## |
|
logging.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") |
|
|
|
logging.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) |
|
|
|
logging.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()
|
|
|