dash/test/functional/txn_doublespend.py
Alexander Block 54198ce739
Backport bitcoin#15773: test: Add BitcoinTestFramework::sync_* methods (incomplete backport) (#3409)
* scripted-diff: Rename sync_blocks to send_blocks to avoid name collisions and confusion

-BEGIN VERIFY SCRIPT-
FILE_LIST=$(git grep -l 'def sync_blocks' ./test/functional/*.py)
sed -i -e 's/def sync_blocks/def send_blocks/g'   $FILE_LIST
sed -i -e 's/self.sync_blocks/self.send_blocks/g' $FILE_LIST
-END VERIFY SCRIPT-

* test: Pass at most one node group to sync_all

* test: Add BitcoinTestFramework::sync_* methods

* Move bumping of mocktime into BitcoinTestFramework.sync_mempool

Instead of doing it in every place it's needed

* scripted-diff: use self.sync_* methods

-BEGIN VERIFY SCRIPT-
sed -i -e 's/sync_blocks(self.nodes)/self.sync_blocks()/g'     $(git grep -l 'sync_blocks(self.nodes)'   ./test/functional/*.py)
sed -i -e 's/sync_mempools(self.nodes)/self.sync_mempools()/g' $(git grep -l 'sync_mempools(self.nodes)' ./test/functional/*.py)

sed -i -e 's/  sync_blocks(/  self.sync_blocks(/g'     $(git grep -l sync_blocks   ./test/functional/*.py)
sed -i -e 's/  sync_mempools(/  self.sync_mempools(/g' $(git grep -l sync_mempools ./test/functional/*.py)
-END VERIFY SCRIPT-

* Pass nodes into bump_mocktime

Co-authored-by: MarcoFalke <falke.marco@gmail.com>
2020-04-14 13:00:16 +03:00

144 lines
6.5 KiB
Python
Executable File

#!/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 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 12,500 DASH:
starting_balance = 12500
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, 12190)
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, 290)
fund_bar_tx = self.nodes[0].gettransaction(fund_bar_txid)
assert_equal(self.nodes[0].getbalance(""),
starting_balance - 12190 - 290 + 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 12400 DASH 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, 12190)
rawtx_input_1 = {}
rawtx_input_1["txid"] = fund_bar_txid
rawtx_input_1["vout"] = find_output(self.nodes[0], fund_bar_txid, 290)
inputs = [rawtx_input_0, rawtx_input_1]
change_address = self.nodes[0].getnewaddress()
outputs = {}
outputs[node1_address] = 12400
outputs[change_address] = 12480 - 12400 + doublespend_fee
rawtx = self.nodes[0].createrawtransaction(inputs, outputs)
doublespend = self.nodes[0].signrawtransaction(rawtx)
assert_equal(doublespend["complete"], True)
# Create two spends using 1 500 DASH coin each
txid1 = self.nodes[0].sendfrom("foo", node1_address, 400, 0)
txid2 = self.nodes[0].sendfrom("bar", node1_address, 200, 0)
# Have node0 mine a block:
if (self.options.mine_block):
self.nodes[0].generate(1)
self.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 500DASH for another
# matured block, minus 400, minus 200, and minus transaction fees:
expected = starting_balance + fund_foo_tx["fee"] + fund_bar_tx["fee"]
if self.options.mine_block: expected += 500
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), 12190+tx1["amount"]+tx1["fee"])
assert_equal(self.nodes[0].getbalance("bar", 0), 290+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
self.sync_blocks()
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 1000DASH for
# two more matured blocks, minus 12400 for the double-spend, plus fees (which are
# negative):
expected = starting_balance + 1000 - 12400 + 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"), 12190)
assert_equal(self.nodes[0].getbalance("bar"), 290)
assert_equal(self.nodes[0].getbalance(""), starting_balance
-12190
- 290
-12400
+ 1000
+ 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"), 12400)
if __name__ == '__main__':
TxnMallTest().main()