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143 lines
6.5 KiB
143 lines
6.5 KiB
#!/usr/bin/env python3 |
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# Copyright (c) 2014-2017 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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"""Test the wallet accounts properly when there is a double-spend conflict.""" |
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from test_framework.test_framework import BitcoinTestFramework |
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from test_framework.util import * |
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class TxnMallTest(BitcoinTestFramework): |
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def set_test_params(self): |
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self.num_nodes = 4 |
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def add_options(self, parser): |
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parser.add_option("--mineblock", dest="mine_block", default=False, action="store_true", |
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help="Test double-spend of 1-confirmed transaction") |
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def setup_network(self): |
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# Start with split network: |
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super().setup_network() |
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disconnect_nodes(self.nodes[1], 2) |
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disconnect_nodes(self.nodes[2], 1) |
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def run_test(self): |
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# All nodes should start with 1,250 BTC: |
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starting_balance = 12500 |
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for i in range(4): |
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assert_equal(self.nodes[i].getbalance(), starting_balance) |
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self.nodes[i].getnewaddress("") # bug workaround, coins generated assigned to first getnewaddress! |
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# Assign coins to foo and bar accounts: |
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node0_address_foo = self.nodes[0].getnewaddress("foo") |
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fund_foo_txid = self.nodes[0].sendfrom("", node0_address_foo, 12190) |
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fund_foo_tx = self.nodes[0].gettransaction(fund_foo_txid) |
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node0_address_bar = self.nodes[0].getnewaddress("bar") |
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fund_bar_txid = self.nodes[0].sendfrom("", node0_address_bar, 290) |
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fund_bar_tx = self.nodes[0].gettransaction(fund_bar_txid) |
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assert_equal(self.nodes[0].getbalance(""), |
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starting_balance - 12190 - 290 + fund_foo_tx["fee"] + fund_bar_tx["fee"]) |
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# Coins are sent to node1_address |
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node1_address = self.nodes[1].getnewaddress("from0") |
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# First: use raw transaction API to send 1240 BTC to node1_address, |
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# but don't broadcast: |
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doublespend_fee = Decimal('-.02') |
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rawtx_input_0 = {} |
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rawtx_input_0["txid"] = fund_foo_txid |
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rawtx_input_0["vout"] = find_output(self.nodes[0], fund_foo_txid, 12190) |
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rawtx_input_1 = {} |
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rawtx_input_1["txid"] = fund_bar_txid |
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rawtx_input_1["vout"] = find_output(self.nodes[0], fund_bar_txid, 290) |
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inputs = [rawtx_input_0, rawtx_input_1] |
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change_address = self.nodes[0].getnewaddress() |
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outputs = {} |
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outputs[node1_address] = 12400 |
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outputs[change_address] = 12480 - 12400 + doublespend_fee |
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rawtx = self.nodes[0].createrawtransaction(inputs, outputs) |
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doublespend = self.nodes[0].signrawtransaction(rawtx) |
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assert_equal(doublespend["complete"], True) |
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# Create two spends using 1 50 BTC coin each |
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txid1 = self.nodes[0].sendfrom("foo", node1_address, 400, 0) |
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txid2 = self.nodes[0].sendfrom("bar", node1_address, 200, 0) |
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# Have node0 mine a block: |
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if (self.options.mine_block): |
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self.nodes[0].generate(1) |
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sync_blocks(self.nodes[0:2]) |
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tx1 = self.nodes[0].gettransaction(txid1) |
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tx2 = self.nodes[0].gettransaction(txid2) |
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# Node0's balance should be starting balance, plus 50BTC for another |
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# matured block, minus 40, minus 20, and minus transaction fees: |
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expected = starting_balance + fund_foo_tx["fee"] + fund_bar_tx["fee"] |
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if self.options.mine_block: expected += 500 |
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expected += tx1["amount"] + tx1["fee"] |
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expected += tx2["amount"] + tx2["fee"] |
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assert_equal(self.nodes[0].getbalance(), expected) |
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# foo and bar accounts should be debited: |
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assert_equal(self.nodes[0].getbalance("foo", 0), 12190+tx1["amount"]+tx1["fee"]) |
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assert_equal(self.nodes[0].getbalance("bar", 0), 290+tx2["amount"]+tx2["fee"]) |
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if self.options.mine_block: |
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assert_equal(tx1["confirmations"], 1) |
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assert_equal(tx2["confirmations"], 1) |
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# Node1's "from0" balance should be both transaction amounts: |
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assert_equal(self.nodes[1].getbalance("from0"), -(tx1["amount"]+tx2["amount"])) |
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else: |
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assert_equal(tx1["confirmations"], 0) |
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assert_equal(tx2["confirmations"], 0) |
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# Now give doublespend and its parents to miner: |
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self.nodes[2].sendrawtransaction(fund_foo_tx["hex"]) |
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self.nodes[2].sendrawtransaction(fund_bar_tx["hex"]) |
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doublespend_txid = self.nodes[2].sendrawtransaction(doublespend["hex"]) |
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# ... mine a block... |
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self.nodes[2].generate(1) |
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# Reconnect the split network, and sync chain: |
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connect_nodes(self.nodes[1], 2) |
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self.nodes[2].generate(1) # Mine another block to make sure we sync |
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sync_blocks(self.nodes) |
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assert_equal(self.nodes[0].gettransaction(doublespend_txid)["confirmations"], 2) |
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# Re-fetch transaction info: |
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tx1 = self.nodes[0].gettransaction(txid1) |
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tx2 = self.nodes[0].gettransaction(txid2) |
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# Both transactions should be conflicted |
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assert_equal(tx1["confirmations"], -2) |
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assert_equal(tx2["confirmations"], -2) |
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# Node0's total balance should be starting balance, plus 100BTC for |
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# two more matured blocks, minus 1240 for the double-spend, plus fees (which are |
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# negative): |
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expected = starting_balance + 1000 - 12400 + fund_foo_tx["fee"] + fund_bar_tx["fee"] + doublespend_fee |
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assert_equal(self.nodes[0].getbalance(), expected) |
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assert_equal(self.nodes[0].getbalance("*"), expected) |
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# Final "" balance is starting_balance - amount moved to accounts - doublespend + subsidies + |
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# fees (which are negative) |
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assert_equal(self.nodes[0].getbalance("foo"), 12190) |
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assert_equal(self.nodes[0].getbalance("bar"), 290) |
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assert_equal(self.nodes[0].getbalance(""), starting_balance |
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-12190 |
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- 290 |
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-12400 |
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+ 1000 |
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+ fund_foo_tx["fee"] |
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+ fund_bar_tx["fee"] |
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+ doublespend_fee) |
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# Node1's "from0" account balance should be just the doublespend: |
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assert_equal(self.nodes[1].getbalance("from0"), 12400) |
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if __name__ == '__main__': |
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TxnMallTest().main() |
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