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.
143 lines
6.5 KiB
143 lines
6.5 KiB
#!/usr/bin/env python3 |
|
# Copyright (c) 2014-2017 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 accounts properly when there is a double-spend conflict.""" |
|
|
|
from test_framework.test_framework import BitcoinTestFramework |
|
from test_framework.util import * |
|
|
|
class TxnMallTest(BitcoinTestFramework): |
|
def set_test_params(self): |
|
self.num_nodes = 4 |
|
|
|
def add_options(self, parser): |
|
parser.add_option("--mineblock", dest="mine_block", default=False, action="store_true", |
|
help="Test double-spend of 1-confirmed transaction") |
|
|
|
def setup_network(self): |
|
# Start with split network: |
|
super().setup_network() |
|
disconnect_nodes(self.nodes[1], 2) |
|
disconnect_nodes(self.nodes[2], 1) |
|
|
|
def run_test(self): |
|
# All nodes should start with 1,250 BTC: |
|
starting_balance = 1250 |
|
for i in range(4): |
|
assert_equal(self.nodes[i].getbalance(), starting_balance) |
|
self.nodes[i].getnewaddress("") # bug workaround, coins generated assigned to first getnewaddress! |
|
|
|
# Assign coins to foo and bar accounts: |
|
node0_address_foo = self.nodes[0].getnewaddress("foo") |
|
fund_foo_txid = self.nodes[0].sendfrom("", node0_address_foo, 1219) |
|
fund_foo_tx = self.nodes[0].gettransaction(fund_foo_txid) |
|
|
|
node0_address_bar = self.nodes[0].getnewaddress("bar") |
|
fund_bar_txid = self.nodes[0].sendfrom("", node0_address_bar, 29) |
|
fund_bar_tx = self.nodes[0].gettransaction(fund_bar_txid) |
|
|
|
assert_equal(self.nodes[0].getbalance(""), |
|
starting_balance - 1219 - 29 + fund_foo_tx["fee"] + fund_bar_tx["fee"]) |
|
|
|
# Coins are sent to node1_address |
|
node1_address = self.nodes[1].getnewaddress("from0") |
|
|
|
# First: use raw transaction API to send 1240 BTC to node1_address, |
|
# but don't broadcast: |
|
doublespend_fee = Decimal('-.02') |
|
rawtx_input_0 = {} |
|
rawtx_input_0["txid"] = fund_foo_txid |
|
rawtx_input_0["vout"] = find_output(self.nodes[0], fund_foo_txid, 1219) |
|
rawtx_input_1 = {} |
|
rawtx_input_1["txid"] = fund_bar_txid |
|
rawtx_input_1["vout"] = find_output(self.nodes[0], fund_bar_txid, 29) |
|
inputs = [rawtx_input_0, rawtx_input_1] |
|
change_address = self.nodes[0].getnewaddress() |
|
outputs = {} |
|
outputs[node1_address] = 1240 |
|
outputs[change_address] = 1248 - 1240 + doublespend_fee |
|
rawtx = self.nodes[0].createrawtransaction(inputs, outputs) |
|
doublespend = self.nodes[0].signrawtransaction(rawtx) |
|
assert_equal(doublespend["complete"], True) |
|
|
|
# Create two spends using 1 50 BTC coin each |
|
txid1 = self.nodes[0].sendfrom("foo", node1_address, 40, 0) |
|
txid2 = self.nodes[0].sendfrom("bar", node1_address, 20, 0) |
|
|
|
# Have node0 mine a block: |
|
if (self.options.mine_block): |
|
self.nodes[0].generate(1) |
|
sync_blocks(self.nodes[0:2]) |
|
|
|
tx1 = self.nodes[0].gettransaction(txid1) |
|
tx2 = self.nodes[0].gettransaction(txid2) |
|
|
|
# Node0's balance should be starting balance, plus 50BTC for another |
|
# matured block, minus 40, minus 20, and minus transaction fees: |
|
expected = starting_balance + fund_foo_tx["fee"] + fund_bar_tx["fee"] |
|
if self.options.mine_block: expected += 50 |
|
expected += tx1["amount"] + tx1["fee"] |
|
expected += tx2["amount"] + tx2["fee"] |
|
assert_equal(self.nodes[0].getbalance(), expected) |
|
|
|
# foo and bar accounts should be debited: |
|
assert_equal(self.nodes[0].getbalance("foo", 0), 1219+tx1["amount"]+tx1["fee"]) |
|
assert_equal(self.nodes[0].getbalance("bar", 0), 29+tx2["amount"]+tx2["fee"]) |
|
|
|
if self.options.mine_block: |
|
assert_equal(tx1["confirmations"], 1) |
|
assert_equal(tx2["confirmations"], 1) |
|
# Node1's "from0" balance should be both transaction amounts: |
|
assert_equal(self.nodes[1].getbalance("from0"), -(tx1["amount"]+tx2["amount"])) |
|
else: |
|
assert_equal(tx1["confirmations"], 0) |
|
assert_equal(tx2["confirmations"], 0) |
|
|
|
# Now give doublespend and its parents to miner: |
|
self.nodes[2].sendrawtransaction(fund_foo_tx["hex"]) |
|
self.nodes[2].sendrawtransaction(fund_bar_tx["hex"]) |
|
doublespend_txid = self.nodes[2].sendrawtransaction(doublespend["hex"]) |
|
# ... mine a block... |
|
self.nodes[2].generate(1) |
|
|
|
# Reconnect the split network, and sync chain: |
|
connect_nodes(self.nodes[1], 2) |
|
self.nodes[2].generate(1) # Mine another block to make sure we sync |
|
sync_blocks(self.nodes) |
|
assert_equal(self.nodes[0].gettransaction(doublespend_txid)["confirmations"], 2) |
|
|
|
# Re-fetch transaction info: |
|
tx1 = self.nodes[0].gettransaction(txid1) |
|
tx2 = self.nodes[0].gettransaction(txid2) |
|
|
|
# Both transactions should be conflicted |
|
assert_equal(tx1["confirmations"], -2) |
|
assert_equal(tx2["confirmations"], -2) |
|
|
|
# Node0's total balance should be starting balance, plus 100BTC for |
|
# two more matured blocks, minus 1240 for the double-spend, plus fees (which are |
|
# negative): |
|
expected = starting_balance + 100 - 1240 + fund_foo_tx["fee"] + fund_bar_tx["fee"] + doublespend_fee |
|
assert_equal(self.nodes[0].getbalance(), expected) |
|
assert_equal(self.nodes[0].getbalance("*"), expected) |
|
|
|
# Final "" balance is starting_balance - amount moved to accounts - doublespend + subsidies + |
|
# fees (which are negative) |
|
assert_equal(self.nodes[0].getbalance("foo"), 1219) |
|
assert_equal(self.nodes[0].getbalance("bar"), 29) |
|
assert_equal(self.nodes[0].getbalance(""), starting_balance |
|
-1219 |
|
- 29 |
|
-1240 |
|
+ 100 |
|
+ fund_foo_tx["fee"] |
|
+ fund_bar_tx["fee"] |
|
+ doublespend_fee) |
|
|
|
# Node1's "from0" account balance should be just the doublespend: |
|
assert_equal(self.nodes[1].getbalance("from0"), 1240) |
|
|
|
if __name__ == '__main__': |
|
TxnMallTest().main() |
|
|
|
|