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172 lines
7.4 KiB
172 lines
7.4 KiB
#!/usr/bin/env python3
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# Copyright (c) 2018-2020 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 wallet group functionality."""
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from test_framework.test_framework import BitcoinTestFramework
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from test_framework.messages import CTransaction, FromHex, ToHex
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from test_framework.util import (
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assert_approx,
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assert_equal,
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)
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class WalletGroupTest(BitcoinTestFramework):
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def set_test_params(self):
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self.setup_clean_chain = True
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self.num_nodes = 5
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self.extra_args = [
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[],
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[],
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["-avoidpartialspends"],
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["-maxapsfee=0.00002719"],
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["-maxapsfee=0.00002720"],
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]
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self.rpc_timeout = 480
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def skip_test_if_missing_module(self):
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self.skip_if_no_wallet()
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def run_test(self):
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# Mine some coins
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self.nodes[0].generate(110)
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# Get some addresses from the two nodes
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addr1 = [self.nodes[1].getnewaddress() for _ in range(3)]
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addr2 = [self.nodes[2].getnewaddress() for _ in range(3)]
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addrs = addr1 + addr2
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# Send 1 + 0.5 coin to each address
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[self.nodes[0].sendtoaddress(addr, 1.0) for addr in addrs]
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[self.nodes[0].sendtoaddress(addr, 0.5) for addr in addrs]
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self.nodes[0].generate(1)
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self.sync_all()
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# For each node, send 0.2 coins back to 0;
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# - node[1] should pick one 0.5 UTXO and leave the rest
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# - node[2] should pick one (1.0 + 0.5) UTXO group corresponding to a
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# given address, and leave the rest
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txid1 = self.nodes[1].sendtoaddress(self.nodes[0].getnewaddress(), 0.2)
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tx1 = self.nodes[1].getrawtransaction(txid1, True)
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# txid1 should have 1 input and 2 outputs
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assert_equal(1, len(tx1["vin"]))
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assert_equal(2, len(tx1["vout"]))
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# one output should be 0.2, the other should be ~0.3
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v = [vout["value"] for vout in tx1["vout"]]
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v.sort()
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assert_approx(v[0], vexp=0.2, vspan=0.0001)
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assert_approx(v[1], vexp=0.3, vspan=0.0001)
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txid2 = self.nodes[2].sendtoaddress(self.nodes[0].getnewaddress(), 0.2)
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tx2 = self.nodes[2].getrawtransaction(txid2, True)
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# txid2 should have 2 inputs and 2 outputs
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assert_equal(2, len(tx2["vin"]))
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assert_equal(2, len(tx2["vout"]))
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# one output should be 0.2, the other should be ~1.3
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v = [vout["value"] for vout in tx2["vout"]]
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v.sort()
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assert_approx(v[0], vexp=0.2, vspan=0.0001)
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assert_approx(v[1], vexp=1.3, vspan=0.0001)
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# Test 'avoid partial if warranted, even if disabled'
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self.sync_all()
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self.nodes[0].generate(1)
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# Nodes 1-2 now have confirmed UTXOs (letters denote destinations):
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# Node #1: Node #2:
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# - A 1.0 - D0 1.0
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# - B0 1.0 - D1 0.5
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# - B1 0.5 - E0 1.0
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# - C0 1.0 - E1 0.5
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# - C1 0.5 - F ~1.3
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# - D ~0.3
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assert_approx(self.nodes[1].getbalance(), vexp=4.3, vspan=0.0001)
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assert_approx(self.nodes[2].getbalance(), vexp=4.3, vspan=0.0001)
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# Sending 1.4 btc should pick one 1.0 + one more. For node #1,
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# this could be (A / B0 / C0) + (B1 / C1 / D). We ensure that it is
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# B0 + B1 or C0 + C1, because this avoids partial spends while not being
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# detrimental to transaction cost
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txid3 = self.nodes[1].sendtoaddress(self.nodes[0].getnewaddress(), 1.4)
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tx3 = self.nodes[1].getrawtransaction(txid3, True)
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# tx3 should have 2 inputs and 2 outputs
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assert_equal(2, len(tx3["vin"]))
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assert_equal(2, len(tx3["vout"]))
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# the accumulated value should be 1.5, so the outputs should be
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# ~0.1 and 1.4 and should come from the same destination
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values = [vout["value"] for vout in tx3["vout"]]
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values.sort()
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assert_approx(values[0], vexp=0.1, vspan=0.0001)
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assert_approx(values[1], vexp=1.4, vspan=0.0001)
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input_txids = [vin["txid"] for vin in tx3["vin"]]
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input_addrs = [self.nodes[1].gettransaction(txid)['details'][0]['address'] for txid in input_txids]
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assert_equal(input_addrs[0], input_addrs[1])
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# Node 2 enforces avoidpartialspends so needs no checking here
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# Test wallet option maxapsfee with Node 3
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addr_aps = self.nodes[3].getnewaddress()
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self.nodes[0].sendtoaddress(addr_aps, 1.0)
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self.nodes[0].sendtoaddress(addr_aps, 1.0)
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self.nodes[0].generate(1)
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self.sync_all()
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with self.nodes[3].assert_debug_log(['Fee non-grouped = 2820, grouped = 4160, using grouped']):
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txid4 = self.nodes[3].sendtoaddress(self.nodes[0].getnewaddress(), 0.1)
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tx4 = self.nodes[3].getrawtransaction(txid4, True)
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# tx4 should have 2 inputs and 2 outputs although one output would
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# have been enough and the transaction caused higher fees
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assert_equal(2, len(tx4["vin"]))
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assert_equal(2, len(tx4["vout"]))
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addr_aps2 = self.nodes[3].getnewaddress()
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[self.nodes[0].sendtoaddress(addr_aps2, 1.0) for _ in range(5)]
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self.nodes[0].generate(1)
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self.sync_all()
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with self.nodes[3].assert_debug_log(['Fee non-grouped = 5520, grouped = 8240, using non-grouped']):
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txid5 = self.nodes[3].sendtoaddress(self.nodes[0].getnewaddress(), 2.95)
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tx5 = self.nodes[3].getrawtransaction(txid5, True)
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# tx5 should have 3 inputs (1.0, 1.0, 1.0) and 2 outputs
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assert_equal(3, len(tx5["vin"]))
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assert_equal(2, len(tx5["vout"]))
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# Test wallet option maxapsfee with node 4, which sets maxapsfee
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# 1 sat higher, crossing the threshold from non-grouped to grouped.
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addr_aps3 = self.nodes[4].getnewaddress()
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[self.nodes[0].sendtoaddress(addr_aps3, 1.0) for _ in range(5)]
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self.nodes[0].generate(1)
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self.sync_all()
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with self.nodes[4].assert_debug_log(['Fee non-grouped = 5520, grouped = 8240, using grouped']):
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txid6 = self.nodes[4].sendtoaddress(self.nodes[0].getnewaddress(), 2.95)
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tx6 = self.nodes[4].getrawtransaction(txid6, True)
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# tx6 should have 5 inputs and 2 outputs
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assert_equal(5, len(tx6["vin"]))
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assert_equal(2, len(tx6["vout"]))
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# Empty out node2's wallet
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self.nodes[2].sendtoaddress(address=self.nodes[0].getnewaddress(), amount=self.nodes[2].getbalance(), subtractfeefromamount=True)
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self.sync_all()
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self.nodes[0].generate(1)
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# Fill node2's wallet with 10000 outputs corresponding to the same
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# scriptPubKey
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for _ in range(5):
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raw_tx = self.nodes[0].createrawtransaction([{"txid":"0"*64, "vout":0}], [{addr2[0]: 0.05}])
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tx = FromHex(CTransaction(), raw_tx)
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tx.vin = []
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tx.vout = [tx.vout[0]] * 2000
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funded_tx = self.nodes[0].fundrawtransaction(ToHex(tx))
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signed_tx = self.nodes[0].signrawtransactionwithwallet(funded_tx['hex'])
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self.nodes[0].sendrawtransaction(signed_tx['hex'])
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self.nodes[0].generate(1)
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self.sync_all()
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# Check that we can create a transaction that only requires ~100 of our
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# utxos, without pulling in all outputs and creating a transaction that
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# is way too big.
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assert self.nodes[2].sendtoaddress(address=addr2[0], amount=5)
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if __name__ == '__main__':
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WalletGroupTest().main()
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