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Differential D13887 Diff 40284 test/functional/wallet_txn_doublespend.py

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test/functional/wallet_txn_doublespend.py

Show All 13 Lines def set_test_params(self):
self.num_nodes = 3 self.num_nodes = 3
self.extra_args = [["-noparkdeepreorg"], ["-noparkdeepreorg"], []] self.extra_args = [["-noparkdeepreorg"], ["-noparkdeepreorg"], []]
self.supports_cli = False self.supports_cli = False
def skip_test_if_missing_module(self): def skip_test_if_missing_module(self):
self.skip_if_no_wallet() self.skip_if_no_wallet()
def add_options(self, parser): def add_options(self, parser):
parser.add_argument("--mineblock", dest="mine_block", default=False, action="store_true", parser.add_argument(
help="Test double-spend of 1-confirmed transaction") "--mineblock",
dest="mine_block",
default=False,
action="store_true",
help="Test double-spend of 1-confirmed transaction",
)
def setup_network(self): def setup_network(self):
# Start with split network: # Start with split network:
super().setup_network() super().setup_network()
self.disconnect_nodes(1, 2) self.disconnect_nodes(1, 2)
def run_test(self): def run_test(self):
# All nodes should start with 1,250,000,000 XEC: # All nodes should start with 1,250,000,000 XEC:
starting_balance = 1250000000 starting_balance = 1250000000
# All nodes should be out of IBD. # All nodes should be out of IBD.
# If the nodes are not all out of IBD, that can interfere with # If the nodes are not all out of IBD, that can interfere with
# blockchain sync later in the test when nodes are connected, due to # blockchain sync later in the test when nodes are connected, due to
# timing issues. # timing issues.
for n in self.nodes: for n in self.nodes:
assert n.getblockchaininfo()["initialblockdownload"] is False assert n.getblockchaininfo()["initialblockdownload"] is False
for i in range(3): for i in range(3):
assert_equal(self.nodes[i].getbalance(), starting_balance) assert_equal(self.nodes[i].getbalance(), starting_balance)
# Assign coins to foo and bar addresses: # Assign coins to foo and bar addresses:
node0_address_foo = self.nodes[0].getnewaddress() node0_address_foo = self.nodes[0].getnewaddress()
fund_foo_txid = self.nodes[0].sendtoaddress( fund_foo_txid = self.nodes[0].sendtoaddress(node0_address_foo, 1219000000)
node0_address_foo, 1219000000)
fund_foo_tx = self.nodes[0].gettransaction(fund_foo_txid) fund_foo_tx = self.nodes[0].gettransaction(fund_foo_txid)
node0_address_bar = self.nodes[0].getnewaddress() node0_address_bar = self.nodes[0].getnewaddress()
fund_bar_txid = self.nodes[0].sendtoaddress( fund_bar_txid = self.nodes[0].sendtoaddress(node0_address_bar, 29000000)
node0_address_bar, 29000000)
fund_bar_tx = self.nodes[0].gettransaction(fund_bar_txid) fund_bar_tx = self.nodes[0].gettransaction(fund_bar_txid)
assert_equal(self.nodes[0].getbalance(), assert_equal(
starting_balance + fund_foo_tx["fee"] + fund_bar_tx["fee"]) self.nodes[0].getbalance(),
starting_balance + fund_foo_tx["fee"] + fund_bar_tx["fee"],
)
# Coins are sent to node1_address # Coins are sent to node1_address
node1_address = self.nodes[1].getnewaddress() node1_address = self.nodes[1].getnewaddress()
# First: use raw transaction API to send 1,240,000,000 XEC to # First: use raw transaction API to send 1,240,000,000 XEC to
# node1_address, but don't broadcast: # node1_address, but don't broadcast:
doublespend_fee = Decimal('-20000') doublespend_fee = Decimal("-20000")
rawtx_input_0 = {} rawtx_input_0 = {}
rawtx_input_0["txid"] = fund_foo_txid rawtx_input_0["txid"] = fund_foo_txid
rawtx_input_0["vout"] = find_output( rawtx_input_0["vout"] = find_output(self.nodes[0], fund_foo_txid, 1219000000)
self.nodes[0], fund_foo_txid, 1219000000)
rawtx_input_1 = {} rawtx_input_1 = {}
rawtx_input_1["txid"] = fund_bar_txid rawtx_input_1["txid"] = fund_bar_txid
rawtx_input_1["vout"] = find_output( rawtx_input_1["vout"] = find_output(self.nodes[0], fund_bar_txid, 29000000)
self.nodes[0], fund_bar_txid, 29000000)
inputs = [rawtx_input_0, rawtx_input_1] inputs = [rawtx_input_0, rawtx_input_1]
change_address = self.nodes[0].getnewaddress() change_address = self.nodes[0].getnewaddress()
outputs = {} outputs = {}
outputs[node1_address] = 1240000000 outputs[node1_address] = 1240000000
outputs[change_address] = 1248000000 - 1240000000 + doublespend_fee outputs[change_address] = 1248000000 - 1240000000 + doublespend_fee
rawtx = self.nodes[0].createrawtransaction(inputs, outputs) rawtx = self.nodes[0].createrawtransaction(inputs, outputs)
doublespend = self.nodes[0].signrawtransactionwithwallet(rawtx) doublespend = self.nodes[0].signrawtransactionwithwallet(rawtx)
assert_equal(doublespend["complete"], True) assert_equal(doublespend["complete"], True)
# Create two spends using 1 50,000,000 XEC coin each # Create two spends using 1 50,000,000 XEC coin each
txid1 = self.nodes[0].sendtoaddress(node1_address, 40000000) txid1 = self.nodes[0].sendtoaddress(node1_address, 40000000)
txid2 = self.nodes[0].sendtoaddress(node1_address, 20000000) txid2 = self.nodes[0].sendtoaddress(node1_address, 20000000)
# Have node0 mine a block: # Have node0 mine a block:
if (self.options.mine_block): if self.options.mine_block:
self.generate( self.generate(
self.nodes[0], 1, sync_fun=lambda: self.sync_blocks(self.nodes[0:2])) self.nodes[0], 1, sync_fun=lambda: self.sync_blocks(self.nodes[0:2])
)
tx1 = self.nodes[0].gettransaction(txid1) tx1 = self.nodes[0].gettransaction(txid1)
tx2 = self.nodes[0].gettransaction(txid2) tx2 = self.nodes[0].gettransaction(txid2)
# Node0's balance should be starting balance, plus 50,000,000 XEC for # Node0's balance should be starting balance, plus 50,000,000 XEC for
# another matured block, minus 40,000,000, minus 20,000,000, and minus # another matured block, minus 40,000,000, minus 20,000,000, and minus
# transaction fees: # transaction fees:
expected = starting_balance + fund_foo_tx["fee"] + fund_bar_tx["fee"] expected = starting_balance + fund_foo_tx["fee"] + fund_bar_tx["fee"]
if self.options.mine_block: if self.options.mine_block:
expected += 50000000 expected += 50000000
expected += tx1["amount"] + tx1["fee"] expected += tx1["amount"] + tx1["fee"]
expected += tx2["amount"] + tx2["fee"] expected += tx2["amount"] + tx2["fee"]
assert_equal(self.nodes[0].getbalance(), expected) assert_equal(self.nodes[0].getbalance(), expected)
if self.options.mine_block: if self.options.mine_block:
assert_equal(tx1["confirmations"], 1) assert_equal(tx1["confirmations"], 1)
assert_equal(tx2["confirmations"], 1) assert_equal(tx2["confirmations"], 1)
# Node1's balance should be both transaction amounts: # Node1's balance should be both transaction amounts:
assert_equal(self.nodes[1].getbalance( assert_equal(
), starting_balance - tx1["amount"] - tx2["amount"]) self.nodes[1].getbalance(),
starting_balance - tx1["amount"] - tx2["amount"],
)
else: else:
assert_equal(tx1["confirmations"], 0) assert_equal(tx1["confirmations"], 0)
assert_equal(tx2["confirmations"], 0) assert_equal(tx2["confirmations"], 0)
# Now give doublespend and its parents to miner: # Now give doublespend and its parents to miner:
self.nodes[2].sendrawtransaction(fund_foo_tx["hex"]) self.nodes[2].sendrawtransaction(fund_foo_tx["hex"])
self.nodes[2].sendrawtransaction(fund_bar_tx["hex"]) self.nodes[2].sendrawtransaction(fund_bar_tx["hex"])
doublespend_txid = self.nodes[2].sendrawtransaction(doublespend["hex"]) doublespend_txid = self.nodes[2].sendrawtransaction(doublespend["hex"])
# ... mine a block... # ... mine a block...
self.generate(self.nodes[2], 1, sync_fun=self.no_op) self.generate(self.nodes[2], 1, sync_fun=self.no_op)
# Reconnect the split network, and sync chain: # Reconnect the split network, and sync chain:
self.connect_nodes(1, 2) self.connect_nodes(1, 2)
# Mine another block to make sure we sync # Mine another block to make sure we sync
self.generate(self.nodes[2], 1) self.generate(self.nodes[2], 1)
assert_equal(self.nodes[0].gettransaction( assert_equal(self.nodes[0].gettransaction(doublespend_txid)["confirmations"], 2)
doublespend_txid)["confirmations"], 2)
# Re-fetch transaction info: # Re-fetch transaction info:
tx1 = self.nodes[0].gettransaction(txid1) tx1 = self.nodes[0].gettransaction(txid1)
tx2 = self.nodes[0].gettransaction(txid2) tx2 = self.nodes[0].gettransaction(txid2)
# Both transactions should be conflicted # Both transactions should be conflicted
assert_equal(tx1["confirmations"], -2) assert_equal(tx1["confirmations"], -2)
assert_equal(tx2["confirmations"], -2) assert_equal(tx2["confirmations"], -2)
# Node0's total balance should be starting balance, plus 100BTC for # 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 # two more matured blocks, minus 1240 for the double-spend, plus fees (which are
# negative): # negative):
expected = starting_balance + 100000000 - 1240000000 + \ expected = (
fund_foo_tx["fee"] + fund_bar_tx["fee"] + doublespend_fee starting_balance
+ 100000000
- 1240000000
+ fund_foo_tx["fee"]
+ fund_bar_tx["fee"]
+ doublespend_fee
)
assert_equal(self.nodes[0].getbalance(), expected) assert_equal(self.nodes[0].getbalance(), expected)
# Node1's balance should be its initial balance (1250 for 25 block # Node1's balance should be its initial balance (1250 for 25 block
# rewards) plus the doublespend: # rewards) plus the doublespend:
assert_equal(self.nodes[1].getbalance(), 1250000000 + 1240000000) assert_equal(self.nodes[1].getbalance(), 1250000000 + 1240000000)
if __name__ == '__main__': if __name__ == "__main__":
TxnMallTest().main() TxnMallTest().main()