1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
|
#!/usr/bin/env python3
# Copyright (c) 2018-2022 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 wallet group functionality."""
from test_framework.blocktools import COINBASE_MATURITY
from test_framework.test_framework import BitcoinTestFramework
from test_framework.messages import (
tx_from_hex,
)
from test_framework.util import (
assert_approx,
assert_equal,
)
class WalletGroupTest(BitcoinTestFramework):
def add_options(self, parser):
self.add_wallet_options(parser)
def set_test_params(self):
self.setup_clean_chain = True
self.num_nodes = 5
# whitelist peers to speed up tx relay / mempool sync
self.noban_tx_relay = True
self.extra_args = [
[],
[],
["-avoidpartialspends"],
["-maxapsfee=0.00002719"],
["-maxapsfee=0.00002720"],
]
for args in self.extra_args:
args.append(f"-paytxfee={20 * 1e3 / 1e8}") # apply feerate of 20 sats/vB across all nodes
self.rpc_timeout = 480
def skip_test_if_missing_module(self):
self.skip_if_no_wallet()
def run_test(self):
self.log.info("Setting up")
# Mine some coins
self.generate(self.nodes[0], COINBASE_MATURITY + 1)
# Get some addresses from the two nodes
addr1 = [self.nodes[1].getnewaddress() for _ in range(3)]
addr2 = [self.nodes[2].getnewaddress() for _ in range(3)]
addrs = addr1 + addr2
# Send 1 + 0.5 coin to each address
[self.nodes[0].sendtoaddress(addr, 1.0) for addr in addrs]
[self.nodes[0].sendtoaddress(addr, 0.5) for addr in addrs]
self.generate(self.nodes[0], 1)
# For each node, send 0.2 coins back to 0;
# - node[1] should pick one 0.5 UTXO and leave the rest
# - node[2] should pick one (1.0 + 0.5) UTXO group corresponding to a
# given address, and leave the rest
self.log.info("Test sending transactions picks one UTXO group and leaves the rest")
txid1 = self.nodes[1].sendtoaddress(self.nodes[0].getnewaddress(), 0.2)
tx1 = self.nodes[1].getrawtransaction(txid1, True)
# txid1 should have 1 input and 2 outputs
assert_equal(1, len(tx1["vin"]))
assert_equal(2, len(tx1["vout"]))
# one output should be 0.2, the other should be ~0.3
v = [vout["value"] for vout in tx1["vout"]]
v.sort()
assert_approx(v[0], vexp=0.2, vspan=0.0001)
assert_approx(v[1], vexp=0.3, vspan=0.0001)
txid2 = self.nodes[2].sendtoaddress(self.nodes[0].getnewaddress(), 0.2)
tx2 = self.nodes[2].getrawtransaction(txid2, True)
# txid2 should have 2 inputs and 2 outputs
assert_equal(2, len(tx2["vin"]))
assert_equal(2, len(tx2["vout"]))
# one output should be 0.2, the other should be ~1.3
v = [vout["value"] for vout in tx2["vout"]]
v.sort()
assert_approx(v[0], vexp=0.2, vspan=0.0001)
assert_approx(v[1], vexp=1.3, vspan=0.0001)
self.log.info("Test avoiding partial spends if warranted, even if avoidpartialspends is disabled")
self.sync_all()
self.generate(self.nodes[0], 1)
# Nodes 1-2 now have confirmed UTXOs (letters denote destinations):
# Node #1: Node #2:
# - A 1.0 - D0 1.0
# - B0 1.0 - D1 0.5
# - B1 0.5 - E0 1.0
# - C0 1.0 - E1 0.5
# - C1 0.5 - F ~1.3
# - D ~0.3
assert_approx(self.nodes[1].getbalance(), vexp=4.3, vspan=0.0001)
assert_approx(self.nodes[2].getbalance(), vexp=4.3, vspan=0.0001)
# Sending 1.4 btc should pick one 1.0 + one more. For node #1,
# this could be (A / B0 / C0) + (B1 / C1 / D). We ensure that it is
# B0 + B1 or C0 + C1, because this avoids partial spends while not being
# detrimental to transaction cost
txid3 = self.nodes[1].sendtoaddress(self.nodes[0].getnewaddress(), 1.4)
tx3 = self.nodes[1].getrawtransaction(txid3, True)
# tx3 should have 2 inputs and 2 outputs
assert_equal(2, len(tx3["vin"]))
assert_equal(2, len(tx3["vout"]))
# the accumulated value should be 1.5, so the outputs should be
# ~0.1 and 1.4 and should come from the same destination
values = [vout["value"] for vout in tx3["vout"]]
values.sort()
assert_approx(values[0], vexp=0.1, vspan=0.0001)
assert_approx(values[1], vexp=1.4, vspan=0.0001)
input_txids = [vin["txid"] for vin in tx3["vin"]]
input_addrs = [self.nodes[1].gettransaction(txid)['details'][0]['address'] for txid in input_txids]
assert_equal(input_addrs[0], input_addrs[1])
# Node 2 enforces avoidpartialspends so needs no checking here
tx4_ungrouped_fee = 2820
tx4_grouped_fee = 4160
tx5_6_ungrouped_fee = 5520
tx5_6_grouped_fee = 8240
self.log.info("Test wallet option maxapsfee")
addr_aps = self.nodes[3].getnewaddress()
self.nodes[0].sendtoaddress(addr_aps, 1.0)
self.nodes[0].sendtoaddress(addr_aps, 1.0)
self.generate(self.nodes[0], 1)
with self.nodes[3].assert_debug_log([f'Fee non-grouped = {tx4_ungrouped_fee}, grouped = {tx4_grouped_fee}, using grouped']):
txid4 = self.nodes[3].sendtoaddress(self.nodes[0].getnewaddress(), 0.1)
tx4 = self.nodes[3].getrawtransaction(txid4, True)
# tx4 should have 2 inputs and 2 outputs although one output would
# have been enough and the transaction caused higher fees
assert_equal(2, len(tx4["vin"]))
assert_equal(2, len(tx4["vout"]))
addr_aps2 = self.nodes[3].getnewaddress()
[self.nodes[0].sendtoaddress(addr_aps2, 1.0) for _ in range(5)]
self.generate(self.nodes[0], 1)
with self.nodes[3].assert_debug_log([f'Fee non-grouped = {tx5_6_ungrouped_fee}, grouped = {tx5_6_grouped_fee}, using non-grouped']):
txid5 = self.nodes[3].sendtoaddress(self.nodes[0].getnewaddress(), 2.95)
tx5 = self.nodes[3].getrawtransaction(txid5, True)
# tx5 should have 3 inputs (1.0, 1.0, 1.0) and 2 outputs
assert_equal(3, len(tx5["vin"]))
assert_equal(2, len(tx5["vout"]))
# Test wallet option maxapsfee with node 4, which sets maxapsfee
# 1 sat higher, crossing the threshold from non-grouped to grouped.
self.log.info("Test wallet option maxapsfee threshold from non-grouped to grouped")
addr_aps3 = self.nodes[4].getnewaddress()
[self.nodes[0].sendtoaddress(addr_aps3, 1.0) for _ in range(5)]
self.generate(self.nodes[0], 1)
with self.nodes[4].assert_debug_log([f'Fee non-grouped = {tx5_6_ungrouped_fee}, grouped = {tx5_6_grouped_fee}, using grouped']):
txid6 = self.nodes[4].sendtoaddress(self.nodes[0].getnewaddress(), 2.95)
tx6 = self.nodes[4].getrawtransaction(txid6, True)
# tx6 should have 5 inputs and 2 outputs
assert_equal(5, len(tx6["vin"]))
assert_equal(2, len(tx6["vout"]))
# Empty out node2's wallet
self.nodes[2].sendall(recipients=[self.nodes[0].getnewaddress()])
self.sync_all()
self.generate(self.nodes[0], 1)
self.log.info("Fill a wallet with 10,000 outputs corresponding to the same scriptPubKey")
for _ in range(5):
raw_tx = self.nodes[0].createrawtransaction([{"txid":"0"*64, "vout":0}], [{addr2[0]: 0.05}])
tx = tx_from_hex(raw_tx)
tx.vin = []
tx.vout = [tx.vout[0]] * 2000
funded_tx = self.nodes[0].fundrawtransaction(tx.serialize().hex())
signed_tx = self.nodes[0].signrawtransactionwithwallet(funded_tx['hex'])
self.nodes[0].sendrawtransaction(signed_tx['hex'])
self.generate(self.nodes[0], 1)
# Check that we can create a transaction that only requires ~100 of our
# utxos, without pulling in all outputs and creating a transaction that
# is way too big.
self.log.info("Test creating txn that only requires ~100 of our UTXOs without pulling in all outputs")
assert self.nodes[2].sendtoaddress(address=addr2[0], amount=5)
if __name__ == '__main__':
WalletGroupTest(__file__).main()
|
