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
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
|
#!/usr/bin/env python3
# Copyright (c) 2015-2021 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 the prioritisetransaction mining RPC."""
from decimal import Decimal
import time
from test_framework.messages import (
COIN,
MAX_BLOCK_WEIGHT,
)
from test_framework.test_framework import BitcoinTestFramework
from test_framework.util import (
assert_equal,
assert_raises_rpc_error,
create_lots_of_big_transactions,
gen_return_txouts,
)
from test_framework.wallet import MiniWallet
class PrioritiseTransactionTest(BitcoinTestFramework):
def set_test_params(self):
self.num_nodes = 1
self.extra_args = [[
"-printpriority=1",
"-datacarriersize=100000",
]] * self.num_nodes
self.supports_cli = False
def test_diamond(self):
self.log.info("Test diamond-shape package with priority")
mock_time = int(time.time())
self.nodes[0].setmocktime(mock_time)
# tx_a
# / \
# / \
# tx_b tx_c
# \ /
# \ /
# tx_d
tx_o_a = self.wallet.send_self_transfer_multi(
from_node=self.nodes[0],
num_outputs=2,
)
txid_a = tx_o_a["txid"]
tx_o_b, tx_o_c = [self.wallet.send_self_transfer(
from_node=self.nodes[0],
utxo_to_spend=u,
) for u in tx_o_a["new_utxos"]]
txid_b = tx_o_b["txid"]
txid_c = tx_o_c["txid"]
tx_o_d = self.wallet.send_self_transfer_multi(
from_node=self.nodes[0],
utxos_to_spend=[
self.wallet.get_utxo(txid=txid_b),
self.wallet.get_utxo(txid=txid_c),
],
)
txid_d = tx_o_d["txid"]
self.log.info("Test priority while txs are in mempool")
raw_before = self.nodes[0].getrawmempool(verbose=True)
fee_delta_b = Decimal(9999) / COIN
fee_delta_c_1 = Decimal(-1234) / COIN
fee_delta_c_2 = Decimal(8888) / COIN
self.nodes[0].prioritisetransaction(txid=txid_b, fee_delta=int(fee_delta_b * COIN))
self.nodes[0].prioritisetransaction(txid=txid_c, fee_delta=int(fee_delta_c_1 * COIN))
self.nodes[0].prioritisetransaction(txid=txid_c, fee_delta=int(fee_delta_c_2 * COIN))
raw_before[txid_a]["fees"]["descendant"] += fee_delta_b + fee_delta_c_1 + fee_delta_c_2
raw_before[txid_b]["fees"]["modified"] += fee_delta_b
raw_before[txid_b]["fees"]["ancestor"] += fee_delta_b
raw_before[txid_b]["fees"]["descendant"] += fee_delta_b
raw_before[txid_c]["fees"]["modified"] += fee_delta_c_1 + fee_delta_c_2
raw_before[txid_c]["fees"]["ancestor"] += fee_delta_c_1 + fee_delta_c_2
raw_before[txid_c]["fees"]["descendant"] += fee_delta_c_1 + fee_delta_c_2
raw_before[txid_d]["fees"]["ancestor"] += fee_delta_b + fee_delta_c_1 + fee_delta_c_2
raw_after = self.nodes[0].getrawmempool(verbose=True)
assert_equal(raw_before[txid_a], raw_after[txid_a])
assert_equal(raw_before, raw_after)
self.log.info("Test priority while txs are not in mempool")
self.restart_node(0, extra_args=["-nopersistmempool"])
self.nodes[0].setmocktime(mock_time)
assert_equal(self.nodes[0].getmempoolinfo()["size"], 0)
self.nodes[0].prioritisetransaction(txid=txid_b, fee_delta=int(fee_delta_b * COIN))
self.nodes[0].prioritisetransaction(txid=txid_c, fee_delta=int(fee_delta_c_1 * COIN))
self.nodes[0].prioritisetransaction(txid=txid_c, fee_delta=int(fee_delta_c_2 * COIN))
for t in [tx_o_a["hex"], tx_o_b["hex"], tx_o_c["hex"], tx_o_d["hex"]]:
self.nodes[0].sendrawtransaction(t)
raw_after = self.nodes[0].getrawmempool(verbose=True)
assert_equal(raw_before[txid_a], raw_after[txid_a])
assert_equal(raw_before, raw_after)
# Clear mempool
self.generate(self.nodes[0], 1)
# Use default extra_args
self.restart_node(0)
def run_test(self):
self.wallet = MiniWallet(self.nodes[0])
self.wallet.rescan_utxos()
# Test `prioritisetransaction` required parameters
assert_raises_rpc_error(-1, "prioritisetransaction", self.nodes[0].prioritisetransaction)
assert_raises_rpc_error(-1, "prioritisetransaction", self.nodes[0].prioritisetransaction, '')
assert_raises_rpc_error(-1, "prioritisetransaction", self.nodes[0].prioritisetransaction, '', 0)
# Test `prioritisetransaction` invalid extra parameters
assert_raises_rpc_error(-1, "prioritisetransaction", self.nodes[0].prioritisetransaction, '', 0, 0, 0)
# Test `prioritisetransaction` invalid `txid`
assert_raises_rpc_error(-8, "txid must be of length 64 (not 3, for 'foo')", self.nodes[0].prioritisetransaction, txid='foo', fee_delta=0)
assert_raises_rpc_error(-8, "txid must be hexadecimal string (not 'Zd1d4e24ed99057e84c3f80fd8fbec79ed9e1acee37da269356ecea000000000')", self.nodes[0].prioritisetransaction, txid='Zd1d4e24ed99057e84c3f80fd8fbec79ed9e1acee37da269356ecea000000000', fee_delta=0)
# Test `prioritisetransaction` invalid `dummy`
txid = '1d1d4e24ed99057e84c3f80fd8fbec79ed9e1acee37da269356ecea000000000'
assert_raises_rpc_error(-1, "JSON value of type string is not of expected type number", self.nodes[0].prioritisetransaction, txid, 'foo', 0)
assert_raises_rpc_error(-8, "Priority is no longer supported, dummy argument to prioritisetransaction must be 0.", self.nodes[0].prioritisetransaction, txid, 1, 0)
# Test `prioritisetransaction` invalid `fee_delta`
assert_raises_rpc_error(-1, "JSON value of type string is not of expected type number", self.nodes[0].prioritisetransaction, txid=txid, fee_delta='foo')
self.test_diamond()
self.txouts = gen_return_txouts()
self.relayfee = self.nodes[0].getnetworkinfo()['relayfee']
utxo_count = 90
utxos = self.wallet.send_self_transfer_multi(from_node=self.nodes[0], num_outputs=utxo_count)['new_utxos']
self.generate(self.wallet, 1)
assert_equal(len(self.nodes[0].getrawmempool()), 0)
base_fee = self.relayfee*100 # our transactions are smaller than 100kb
txids = []
# Create 3 batches of transactions at 3 different fee rate levels
range_size = utxo_count // 3
for i in range(3):
txids.append([])
start_range = i * range_size
end_range = start_range + range_size
txids[i] = create_lots_of_big_transactions(
self.wallet,
self.nodes[0],
(i+1) * base_fee,
end_range - start_range,
self.txouts,
utxos[start_range:end_range])
# Make sure that the size of each group of transactions exceeds
# MAX_BLOCK_WEIGHT // 4 -- otherwise the test needs to be revised to
# create more transactions.
mempool = self.nodes[0].getrawmempool(True)
sizes = [0, 0, 0]
for i in range(3):
for j in txids[i]:
assert j in mempool
sizes[i] += mempool[j]['vsize']
assert sizes[i] > MAX_BLOCK_WEIGHT // 4 # Fail => raise utxo_count
# add a fee delta to something in the cheapest bucket and make sure it gets mined
# also check that a different entry in the cheapest bucket is NOT mined
self.nodes[0].prioritisetransaction(txid=txids[0][0], fee_delta=int(3*base_fee*COIN))
self.generate(self.nodes[0], 1)
mempool = self.nodes[0].getrawmempool()
self.log.info("Assert that prioritised transaction was mined")
assert txids[0][0] not in mempool
assert txids[0][1] in mempool
high_fee_tx = None
for x in txids[2]:
if x not in mempool:
high_fee_tx = x
# Something high-fee should have been mined!
assert high_fee_tx is not None
# Add a prioritisation before a tx is in the mempool (de-prioritising a
# high-fee transaction so that it's now low fee).
self.nodes[0].prioritisetransaction(txid=high_fee_tx, fee_delta=-int(2*base_fee*COIN))
# Add everything back to mempool
self.nodes[0].invalidateblock(self.nodes[0].getbestblockhash())
# Check to make sure our high fee rate tx is back in the mempool
mempool = self.nodes[0].getrawmempool()
assert high_fee_tx in mempool
# Now verify the modified-high feerate transaction isn't mined before
# the other high fee transactions. Keep mining until our mempool has
# decreased by all the high fee size that we calculated above.
while (self.nodes[0].getmempoolinfo()['bytes'] > sizes[0] + sizes[1]):
self.generate(self.nodes[0], 1, sync_fun=self.no_op)
# High fee transaction should not have been mined, but other high fee rate
# transactions should have been.
mempool = self.nodes[0].getrawmempool()
self.log.info("Assert that de-prioritised transaction is still in mempool")
assert high_fee_tx in mempool
for x in txids[2]:
if (x != high_fee_tx):
assert x not in mempool
# Create a free transaction. Should be rejected.
tx_res = self.wallet.create_self_transfer(fee_rate=0)
tx_hex = tx_res['hex']
tx_id = tx_res['txid']
# This will raise an exception due to min relay fee not being met
assert_raises_rpc_error(-26, "min relay fee not met", self.nodes[0].sendrawtransaction, tx_hex)
assert tx_id not in self.nodes[0].getrawmempool()
# This is a less than 1000-byte transaction, so just set the fee
# to be the minimum for a 1000-byte transaction and check that it is
# accepted.
self.nodes[0].prioritisetransaction(txid=tx_id, fee_delta=int(self.relayfee*COIN))
self.log.info("Assert that prioritised free transaction is accepted to mempool")
assert_equal(self.nodes[0].sendrawtransaction(tx_hex), tx_id)
assert tx_id in self.nodes[0].getrawmempool()
# Test that calling prioritisetransaction is sufficient to trigger
# getblocktemplate to (eventually) return a new block.
mock_time = int(time.time())
self.nodes[0].setmocktime(mock_time)
template = self.nodes[0].getblocktemplate({'rules': ['segwit']})
self.nodes[0].prioritisetransaction(txid=tx_id, fee_delta=-int(self.relayfee*COIN))
self.nodes[0].setmocktime(mock_time+10)
new_template = self.nodes[0].getblocktemplate({'rules': ['segwit']})
assert template != new_template
if __name__ == '__main__':
PrioritiseTransactionTest().main()
|
