119 lines
4.8 KiB
119 lines
4.8 KiB
#!/usr/bin/env python2 |
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# Copyright (c) 2014 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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# |
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# Test proper accounting with malleable transactions |
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# |
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from test_framework.test_framework import BitcoinTestFramework |
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from test_framework.util import * |
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from decimal import Decimal |
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import os |
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import shutil |
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class TxnMallTest(BitcoinTestFramework): |
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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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return super(TxnMallTest, self).setup_network(True) |
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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 = 1250 |
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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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self.nodes[0].move("", "foo", 1220) |
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self.nodes[0].move("", "bar", 30) |
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assert_equal(self.nodes[0].getbalance(""), 0) |
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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 1210 BTC to node1_address, |
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# but don't broadcast: |
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(total_in, inputs) = gather_inputs(self.nodes[0], 1210) |
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change_address = self.nodes[0].getnewaddress("foo") |
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outputs = {} |
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outputs[change_address] = 40 |
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outputs[node1_address] = 1210 |
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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 transaction from node[0] to node[1]; the |
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# second must spend change from the first because the first |
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# spends all mature inputs: |
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txid1 = self.nodes[0].sendfrom("foo", node1_address, 1210, 0) |
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txid2 = self.nodes[0].sendfrom("bar", node1_address, 20, 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 1210, minus 20, and minus transaction fees: |
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expected = starting_balance |
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if self.options.mine_block: expected += 50 |
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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"), 1220+tx1["amount"]+tx1["fee"]) |
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assert_equal(self.nodes[0].getbalance("bar"), 30+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 to miner: |
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mutated_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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# 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"], -1) |
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assert_equal(tx2["confirmations"], -1) |
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# Node0's total balance should be starting balance, plus 100BTC for |
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# two more matured blocks, minus 1210 for the double-spend: |
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expected = starting_balance + 100 - 1210 |
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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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# foo account should be debited, but bar account should not: |
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assert_equal(self.nodes[0].getbalance("foo"), 1220-1210) |
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assert_equal(self.nodes[0].getbalance("bar"), 30) |
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# Node1's "from" account balance should be just the mutated send: |
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assert_equal(self.nodes[1].getbalance("from0"), 1210) |
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if __name__ == '__main__': |
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TxnMallTest().main()
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