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
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
|
#!/usr/bin/env python3
# Copyright (c) 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.
from decimal import Decimal, getcontext
from test_framework.test_framework import BitcoinTestFramework
from test_framework.util import (
assert_greater_than_or_equal,
assert_equal,
find_vout_for_address,
)
class UnconfirmedInputTest(BitcoinTestFramework):
def add_options(self, parser):
self.add_wallet_options(parser)
def set_test_params(self):
getcontext().prec=9
self.setup_clean_chain = True
self.num_nodes = 1
def setup_and_fund_wallet(self, walletname):
self.nodes[0].createwallet(walletname)
wallet = self.nodes[0].get_wallet_rpc(walletname)
self.def_wallet.sendtoaddress(address=wallet.getnewaddress(), amount=2)
self.generate(self.nodes[0], 1) # confirm funding tx
return wallet
def skip_test_if_missing_module(self):
self.skip_if_no_wallet()
def calc_fee_rate(self, tx):
fee = Decimal(-1e8) * tx["fee"]
vsize = tx["decoded"]["vsize"]
return fee / vsize
def calc_set_fee_rate(self, txs):
fees = Decimal(-1e8) * sum([tx["fee"] for tx in txs]) # fee is negative!
vsizes = sum([tx["decoded"]["vsize"] for tx in txs])
return fees / vsizes
def assert_spends_only_parents(self, tx, parent_txids):
parent_checklist = parent_txids.copy()
number_inputs = len(tx["decoded"]["vin"])
assert_equal(number_inputs, len(parent_txids))
for i in range(number_inputs):
txid_of_input = tx["decoded"]["vin"][i]["txid"]
assert txid_of_input in parent_checklist
parent_checklist.remove(txid_of_input)
def assert_undershoots_target(self, tx):
resulting_fee_rate = self.calc_fee_rate(tx)
assert_greater_than_or_equal(self.target_fee_rate, resulting_fee_rate)
def assert_beats_target(self, tx):
resulting_fee_rate = self.calc_fee_rate(tx)
assert_greater_than_or_equal(resulting_fee_rate, self.target_fee_rate)
# Meta-Test: try feerate testing function on confirmed UTXO
def test_target_feerate_confirmed(self):
self.log.info("Start test feerate with confirmed input")
wallet = self.setup_and_fund_wallet("confirmed_wallet")
ancestor_aware_txid = wallet.sendtoaddress(address=self.def_wallet.getnewaddress(), amount=0.5, fee_rate=self.target_fee_rate)
ancestor_aware_tx = wallet.gettransaction(txid=ancestor_aware_txid, verbose=True)
self.assert_beats_target(ancestor_aware_tx)
wallet.unloadwallet()
# Spend unconfirmed UTXO from high-feerate parent
def test_target_feerate_unconfirmed_high(self):
self.log.info("Start test feerate with high feerate unconfirmed input")
wallet = self.setup_and_fund_wallet("unconfirmed_high_wallet")
# Send unconfirmed transaction with high feerate to testing wallet
parent_txid = wallet.sendtoaddress(address=wallet.getnewaddress(), amount=1, fee_rate=3*self.target_fee_rate)
parent_tx = wallet.gettransaction(txid=parent_txid, verbose=True)
self.assert_beats_target(parent_tx)
ancestor_aware_txid = wallet.sendtoaddress(address=self.def_wallet.getnewaddress(), amount=0.5, fee_rate=self.target_fee_rate)
ancestor_aware_tx = wallet.gettransaction(txid=ancestor_aware_txid, verbose=True)
self.assert_spends_only_parents(ancestor_aware_tx, [parent_txid])
self.assert_beats_target(ancestor_aware_tx)
wallet.unloadwallet()
# Spend unconfirmed UTXO from low-feerate parent. Expect that parent gets
# bumped to target feerate.
def test_target_feerate_unconfirmed_low(self):
self.log.info("Start test feerate with low feerate unconfirmed input")
wallet = self.setup_and_fund_wallet("unconfirmed_low_wallet")
parent_txid = wallet.sendtoaddress(address=wallet.getnewaddress(), amount=1, fee_rate=1)
parent_tx = wallet.gettransaction(txid=parent_txid, verbose=True)
self.assert_undershoots_target(parent_tx)
ancestor_aware_txid = wallet.sendtoaddress(address=self.def_wallet.getnewaddress(), amount=0.5, fee_rate=self.target_fee_rate)
ancestor_aware_tx = wallet.gettransaction(txid=ancestor_aware_txid, verbose=True)
self.assert_spends_only_parents(ancestor_aware_tx, [parent_txid])
self.assert_beats_target(ancestor_aware_tx)
resulting_ancestry_fee_rate = self.calc_set_fee_rate([parent_tx, ancestor_aware_tx])
assert_greater_than_or_equal(resulting_ancestry_fee_rate, self.target_fee_rate)
assert_greater_than_or_equal(self.target_fee_rate*1.01, resulting_ancestry_fee_rate)
wallet.unloadwallet()
# Spend UTXO with unconfirmed low feerate parent and grandparent
# txs. Expect that both ancestors get bumped to target feerate.
def test_chain_of_unconfirmed_low(self):
self.log.info("Start test with parent and grandparent tx")
wallet = self.setup_and_fund_wallet("unconfirmed_low_chain_wallet")
grandparent_txid = wallet.sendtoaddress(address=wallet.getnewaddress(), amount=1.8, fee_rate=1)
gp_tx = wallet.gettransaction(txid=grandparent_txid, verbose=True)
self.assert_undershoots_target(gp_tx)
parent_txid = wallet.sendtoaddress(address=wallet.getnewaddress(), amount=1.5, fee_rate=2)
p_tx = wallet.gettransaction(txid=parent_txid, verbose=True)
self.assert_undershoots_target(p_tx)
ancestor_aware_txid = wallet.sendtoaddress(address=self.def_wallet.getnewaddress(), amount=1.3, fee_rate=self.target_fee_rate)
ancestor_aware_tx = wallet.gettransaction(txid=ancestor_aware_txid, verbose=True)
self.assert_spends_only_parents(ancestor_aware_tx, [parent_txid])
self.assert_beats_target(ancestor_aware_tx)
resulting_ancestry_fee_rate = self.calc_set_fee_rate([gp_tx, p_tx, ancestor_aware_tx])
assert_greater_than_or_equal(resulting_ancestry_fee_rate, self.target_fee_rate)
assert_greater_than_or_equal(self.target_fee_rate*1.01, resulting_ancestry_fee_rate)
wallet.unloadwallet()
# Spend unconfirmed UTXOs from two low feerate parent txs.
def test_two_low_feerate_unconfirmed_parents(self):
self.log.info("Start test with two unconfirmed parent txs")
wallet = self.setup_and_fund_wallet("two_parents_wallet")
# Add second UTXO to tested wallet
self.def_wallet.sendtoaddress(address=wallet.getnewaddress(), amount=2)
self.generate(self.nodes[0], 1) # confirm funding tx
parent_one_txid = wallet.sendtoaddress(address=wallet.getnewaddress(), amount=1.5, fee_rate=2)
p_one_tx = wallet.gettransaction(txid=parent_one_txid, verbose=True)
self.assert_undershoots_target(p_one_tx)
parent_two_txid = wallet.sendtoaddress(address=wallet.getnewaddress(), amount=1.5, fee_rate=1)
p_two_tx = wallet.gettransaction(txid=parent_two_txid, verbose=True)
self.assert_undershoots_target(p_two_tx)
ancestor_aware_txid = wallet.sendtoaddress(address=self.def_wallet.getnewaddress(), amount=2.8, fee_rate=self.target_fee_rate)
ancestor_aware_tx = wallet.gettransaction(txid=ancestor_aware_txid, verbose=True)
self.assert_spends_only_parents(ancestor_aware_tx, [parent_one_txid, parent_two_txid])
self.assert_beats_target(ancestor_aware_tx)
resulting_ancestry_fee_rate = self.calc_set_fee_rate([p_one_tx, p_two_tx, ancestor_aware_tx])
assert_greater_than_or_equal(resulting_ancestry_fee_rate, self.target_fee_rate)
assert_greater_than_or_equal(self.target_fee_rate*1.01, resulting_ancestry_fee_rate)
wallet.unloadwallet()
# Spend two unconfirmed inputs, one each from low and high feerate parents
def test_mixed_feerate_unconfirmed_parents(self):
self.log.info("Start test with two unconfirmed parent txs one of which has a higher feerate")
wallet = self.setup_and_fund_wallet("two_mixed_parents_wallet")
# Add second UTXO to tested wallet
self.def_wallet.sendtoaddress(address=wallet.getnewaddress(), amount=2)
self.generate(self.nodes[0], 1) # confirm funding tx
high_parent_txid = wallet.sendtoaddress(address=wallet.getnewaddress(), amount=1.5, fee_rate=self.target_fee_rate*2)
p_high_tx = wallet.gettransaction(txid=high_parent_txid, verbose=True)
# This time the parent is greater than the child
self.assert_beats_target(p_high_tx)
parent_low_txid = wallet.sendtoaddress(address=wallet.getnewaddress(), amount=1.5, fee_rate=1)
p_low_tx = wallet.gettransaction(txid=parent_low_txid, verbose=True)
# Other parent needs bump
self.assert_undershoots_target(p_low_tx)
ancestor_aware_txid = wallet.sendtoaddress(address=self.def_wallet.getnewaddress(), amount=2.8, fee_rate=self.target_fee_rate)
ancestor_aware_tx = wallet.gettransaction(txid=ancestor_aware_txid, verbose=True)
self.assert_spends_only_parents(ancestor_aware_tx, [parent_low_txid, high_parent_txid])
self.assert_beats_target(ancestor_aware_tx)
resulting_ancestry_fee_rate = self.calc_set_fee_rate([p_high_tx, p_low_tx, ancestor_aware_tx])
assert_greater_than_or_equal(resulting_ancestry_fee_rate, self.target_fee_rate)
resulting_bumped_ancestry_fee_rate = self.calc_set_fee_rate([p_low_tx, ancestor_aware_tx])
assert_greater_than_or_equal(resulting_bumped_ancestry_fee_rate, self.target_fee_rate)
assert_greater_than_or_equal(self.target_fee_rate*1.01, resulting_bumped_ancestry_fee_rate)
wallet.unloadwallet()
# Spend from chain with high feerate grandparent and low feerate parent
def test_chain_of_high_low(self):
self.log.info("Start test with low parent and high grandparent tx")
wallet = self.setup_and_fund_wallet("high_low_chain_wallet")
grandparent_txid = wallet.sendtoaddress(address=wallet.getnewaddress(), amount=1.8, fee_rate=self.target_fee_rate * 10)
gp_tx = wallet.gettransaction(txid=grandparent_txid, verbose=True)
# grandparent has higher feerate
self.assert_beats_target(gp_tx)
parent_txid = wallet.sendtoaddress(address=wallet.getnewaddress(), amount=1.5, fee_rate=1)
# parent is low feerate
p_tx = wallet.gettransaction(txid=parent_txid, verbose=True)
self.assert_undershoots_target(p_tx)
ancestor_aware_txid = wallet.sendtoaddress(address=self.def_wallet.getnewaddress(), amount=1.3, fee_rate=self.target_fee_rate)
ancestor_aware_tx = wallet.gettransaction(txid=ancestor_aware_txid, verbose=True)
self.assert_spends_only_parents(ancestor_aware_tx, [parent_txid])
self.assert_beats_target(ancestor_aware_tx)
resulting_ancestry_fee_rate = self.calc_set_fee_rate([p_tx, ancestor_aware_tx])
assert_greater_than_or_equal(resulting_ancestry_fee_rate, self.target_fee_rate)
assert_greater_than_or_equal(self.target_fee_rate*1.01, resulting_ancestry_fee_rate)
resulting_ancestry_fee_rate_with_high_feerate_gp = self.calc_set_fee_rate([gp_tx, p_tx, ancestor_aware_tx])
# Check that we bumped the parent without relying on the grandparent
assert_greater_than_or_equal(resulting_ancestry_fee_rate_with_high_feerate_gp, self.target_fee_rate*1.1)
wallet.unloadwallet()
# Spend UTXO from chain of unconfirmed transactions with low feerate
# grandparent and even lower feerate parent
def test_chain_of_high_low_below_target_feerate(self):
self.log.info("Start test with low parent and higher low grandparent tx")
wallet = self.setup_and_fund_wallet("low_and_lower_chain_wallet")
grandparent_txid = wallet.sendtoaddress(address=wallet.getnewaddress(), amount=1.8, fee_rate=5)
gp_tx = wallet.gettransaction(txid=grandparent_txid, verbose=True)
# grandparent has higher feerate, but below target
self.assert_undershoots_target(gp_tx)
parent_txid = wallet.sendtoaddress(address=wallet.getnewaddress(), amount=1.5, fee_rate=1)
p_tx = wallet.gettransaction(txid=parent_txid, verbose=True)
# parent even lower
self.assert_undershoots_target(p_tx)
ancestor_aware_txid = wallet.sendtoaddress(address=self.def_wallet.getnewaddress(), amount=1.3, fee_rate=self.target_fee_rate)
ancestor_aware_tx = wallet.gettransaction(txid=ancestor_aware_txid, verbose=True)
self.assert_spends_only_parents(ancestor_aware_tx, [parent_txid])
self.assert_beats_target(ancestor_aware_tx)
resulting_ancestry_fee_rate = self.calc_set_fee_rate([gp_tx, p_tx, ancestor_aware_tx])
assert_greater_than_or_equal(resulting_ancestry_fee_rate, self.target_fee_rate)
assert_greater_than_or_equal(self.target_fee_rate*1.01, resulting_ancestry_fee_rate)
wallet.unloadwallet()
# Test fee calculation when bumping while using subtract fee from output (SFFO)
def test_target_feerate_unconfirmed_low_sffo(self):
self.log.info("Start test feerate with low feerate unconfirmed input, while subtracting from output")
wallet = self.setup_and_fund_wallet("unconfirmed_low_wallet_sffo")
parent_txid = wallet.sendtoaddress(address=wallet.getnewaddress(), amount=1, fee_rate=1)
parent_tx = wallet.gettransaction(txid=parent_txid, verbose=True)
self.assert_undershoots_target(parent_tx)
ancestor_aware_txid = wallet.sendtoaddress(address=self.def_wallet.getnewaddress(), amount=0.5, fee_rate=self.target_fee_rate, subtractfeefromamount=True)
ancestor_aware_tx = wallet.gettransaction(txid=ancestor_aware_txid, verbose=True)
self.assert_spends_only_parents(ancestor_aware_tx, [parent_txid])
self.assert_beats_target(ancestor_aware_tx)
resulting_ancestry_fee_rate = self.calc_set_fee_rate([parent_tx, ancestor_aware_tx])
assert_greater_than_or_equal(resulting_ancestry_fee_rate, self.target_fee_rate)
assert_greater_than_or_equal(self.target_fee_rate*1.01, resulting_ancestry_fee_rate)
wallet.unloadwallet()
# Test that parents of preset unconfirmed inputs get cpfp'ed
def test_preset_input_cpfp(self):
self.log.info("Start test with preset input from low feerate unconfirmed transaction")
wallet = self.setup_and_fund_wallet("preset_input")
parent_txid = wallet.sendtoaddress(address=wallet.getnewaddress(), amount=1, fee_rate=1)
parent_tx = wallet.gettransaction(txid=parent_txid, verbose=True)
self.assert_undershoots_target(parent_tx)
number_outputs = len(parent_tx["decoded"]["vout"])
assert_equal(number_outputs, 2)
# we don't care which of the two outputs we spent, they're both ours
ancestor_aware_txid = wallet.send(outputs=[{self.def_wallet.getnewaddress(): 0.5}], fee_rate=self.target_fee_rate, options={"add_inputs": True, "inputs": [{"txid": parent_txid, "vout": 0}]})["txid"]
ancestor_aware_tx = wallet.gettransaction(txid=ancestor_aware_txid, verbose=True)
self.assert_spends_only_parents(ancestor_aware_tx, [parent_txid])
self.assert_beats_target(ancestor_aware_tx)
resulting_ancestry_fee_rate = self.calc_set_fee_rate([parent_tx, ancestor_aware_tx])
assert_greater_than_or_equal(resulting_ancestry_fee_rate, self.target_fee_rate)
assert_greater_than_or_equal(self.target_fee_rate*1.01, resulting_ancestry_fee_rate)
wallet.unloadwallet()
# Test that RBFing a transaction with unconfirmed input gets the right feerate
def test_rbf_bumping(self):
self.log.info("Start test to rbf a transaction unconfirmed input to bump it")
wallet = self.setup_and_fund_wallet("bump")
parent_txid = wallet.sendtoaddress(address=wallet.getnewaddress(), amount=1, fee_rate=1)
parent_tx = wallet.gettransaction(txid=parent_txid, verbose=True)
self.assert_undershoots_target(parent_tx)
to_be_rbfed_ancestor_aware_txid = wallet.sendtoaddress(address=self.def_wallet.getnewaddress(), amount=0.5, fee_rate=self.target_fee_rate)
ancestor_aware_tx = wallet.gettransaction(txid=to_be_rbfed_ancestor_aware_txid, verbose=True)
self.assert_spends_only_parents(ancestor_aware_tx, [parent_txid])
self.assert_beats_target(ancestor_aware_tx)
resulting_ancestry_fee_rate = self.calc_set_fee_rate([parent_tx, ancestor_aware_tx])
assert_greater_than_or_equal(resulting_ancestry_fee_rate, self.target_fee_rate)
assert_greater_than_or_equal(self.target_fee_rate*1.01, resulting_ancestry_fee_rate)
bumped_ancestor_aware_txid = wallet.bumpfee(txid=to_be_rbfed_ancestor_aware_txid, options={"fee_rate": self.target_fee_rate * 2} )["txid"]
bumped_ancestor_aware_tx = wallet.gettransaction(txid=bumped_ancestor_aware_txid, verbose=True)
self.assert_spends_only_parents(ancestor_aware_tx, [parent_txid])
resulting_bumped_fee_rate = self.calc_fee_rate(bumped_ancestor_aware_tx)
assert_greater_than_or_equal(resulting_bumped_fee_rate, 2*self.target_fee_rate)
resulting_bumped_ancestry_fee_rate = self.calc_set_fee_rate([parent_tx, bumped_ancestor_aware_tx])
assert_greater_than_or_equal(resulting_bumped_ancestry_fee_rate, 2*self.target_fee_rate)
assert_greater_than_or_equal(2*self.target_fee_rate*1.01, resulting_bumped_ancestry_fee_rate)
wallet.unloadwallet()
# Test that transaction spending two UTXOs with overlapping ancestry does not bump shared ancestors twice
def test_target_feerate_unconfirmed_low_overlapping_ancestry(self):
self.log.info("Start test where two UTXOs have overlapping ancestry")
wallet = self.setup_and_fund_wallet("overlapping_ancestry_wallet")
parent_txid = wallet.sendtoaddress(address=wallet.getnewaddress(), amount=1, fee_rate=1)
two_output_parent_tx = wallet.gettransaction(txid=parent_txid, verbose=True)
self.assert_undershoots_target(two_output_parent_tx)
# spend both outputs from parent transaction
ancestor_aware_txid = wallet.sendtoaddress(address=self.def_wallet.getnewaddress(), amount=1.5, fee_rate=self.target_fee_rate)
ancestor_aware_tx = wallet.gettransaction(txid=ancestor_aware_txid, verbose=True)
self.assert_spends_only_parents(ancestor_aware_tx, [parent_txid, parent_txid])
self.assert_beats_target(ancestor_aware_tx)
resulting_ancestry_fee_rate = self.calc_set_fee_rate([two_output_parent_tx, ancestor_aware_tx])
assert_greater_than_or_equal(resulting_ancestry_fee_rate, self.target_fee_rate)
assert_greater_than_or_equal(self.target_fee_rate*1.01, resulting_ancestry_fee_rate)
wallet.unloadwallet()
# Test that new transaction ignores sibling transaction with low feerate
def test_sibling_tx_gets_ignored(self):
self.log.info("Start test where a low-fee sibling tx gets created and check that bumping ignores it")
wallet = self.setup_and_fund_wallet("ignore-sibling")
parent_txid = wallet.sendtoaddress(address=wallet.getnewaddress(), amount=1, fee_rate=2)
parent_tx = wallet.gettransaction(txid=parent_txid, verbose=True)
self.assert_undershoots_target(parent_tx)
# create sibling tx
sibling_txid = wallet.sendtoaddress(address=self.def_wallet.getnewaddress(), amount=0.9, fee_rate=1)
sibling_tx = wallet.gettransaction(txid=sibling_txid, verbose=True)
self.assert_undershoots_target(sibling_tx)
# spend both outputs from parent transaction
ancestor_aware_txid = wallet.sendtoaddress(address=self.def_wallet.getnewaddress(), amount=0.5, fee_rate=self.target_fee_rate)
ancestor_aware_tx = wallet.gettransaction(txid=ancestor_aware_txid, verbose=True)
self.assert_spends_only_parents(ancestor_aware_tx, [parent_txid])
self.assert_beats_target(ancestor_aware_tx)
resulting_ancestry_fee_rate = self.calc_set_fee_rate([parent_tx, ancestor_aware_tx])
assert_greater_than_or_equal(resulting_ancestry_fee_rate, self.target_fee_rate)
assert_greater_than_or_equal(self.target_fee_rate*1.01, resulting_ancestry_fee_rate)
wallet.unloadwallet()
# Test that new transaction only pays for itself when high feerate sibling pays for parent
def test_sibling_tx_bumps_parent(self):
self.log.info("Start test where a high-fee sibling tx bumps the parent")
wallet = self.setup_and_fund_wallet("generous-sibling")
parent_txid = wallet.sendtoaddress(address=wallet.getnewaddress(), amount=1, fee_rate=1)
parent_tx = wallet.gettransaction(txid=parent_txid, verbose=True)
self.assert_undershoots_target(parent_tx)
# create sibling tx
sibling_txid = wallet.sendtoaddress(address=self.def_wallet.getnewaddress(), amount=0.9, fee_rate=3*self.target_fee_rate)
sibling_tx = wallet.gettransaction(txid=sibling_txid, verbose=True)
self.assert_beats_target(sibling_tx)
# spend both outputs from parent transaction
ancestor_aware_txid = wallet.sendtoaddress(address=self.def_wallet.getnewaddress(), amount=0.5, fee_rate=self.target_fee_rate)
ancestor_aware_tx = wallet.gettransaction(txid=ancestor_aware_txid, verbose=True)
self.assert_spends_only_parents(ancestor_aware_tx, [parent_txid])
self.assert_beats_target(ancestor_aware_tx)
# Child is only paying for itself…
resulting_fee_rate = self.calc_fee_rate(ancestor_aware_tx)
assert_greater_than_or_equal(1.05 * self.target_fee_rate, resulting_fee_rate)
# …because sibling bumped to parent to ~50 s/vB, while our target is 30 s/vB
resulting_ancestry_fee_rate_sibling = self.calc_set_fee_rate([parent_tx, sibling_tx])
assert_greater_than_or_equal(resulting_ancestry_fee_rate_sibling, self.target_fee_rate)
# and our resulting "ancestry feerate" is therefore BELOW target feerate
resulting_ancestry_fee_rate = self.calc_set_fee_rate([parent_tx, ancestor_aware_tx])
assert_greater_than_or_equal(self.target_fee_rate, resulting_ancestry_fee_rate)
wallet.unloadwallet()
# Spend a confirmed and an unconfirmed input at the same time
def test_confirmed_and_unconfirmed_parent(self):
self.log.info("Start test with one unconfirmed and one confirmed input")
wallet = self.setup_and_fund_wallet("confirmed_and_unconfirmed_wallet")
confirmed_parent_txid = wallet.sendtoaddress(address=wallet.getnewaddress(), amount=1, fee_rate=self.target_fee_rate)
self.generate(self.nodes[0], 1) # Wallet has two confirmed UTXOs of ~1BTC each
unconfirmed_parent_txid = wallet.sendtoaddress(address=wallet.getnewaddress(), amount=0.5, fee_rate=0.5*self.target_fee_rate)
# wallet has one confirmed UTXO of 1BTC and two unconfirmed UTXOs of ~0.5BTC each
ancestor_aware_txid = wallet.sendtoaddress(address=self.def_wallet.getnewaddress(), amount=1.4, fee_rate=self.target_fee_rate)
ancestor_aware_tx = wallet.gettransaction(txid=ancestor_aware_txid, verbose=True)
self.assert_spends_only_parents(ancestor_aware_tx, [confirmed_parent_txid, unconfirmed_parent_txid])
resulting_fee_rate = self.calc_fee_rate(ancestor_aware_tx)
assert_greater_than_or_equal(resulting_fee_rate, self.target_fee_rate)
wallet.unloadwallet()
def test_external_input_unconfirmed_low(self):
self.log.info("Send funds to an external wallet then build tx that bumps parent by spending external input")
wallet = self.setup_and_fund_wallet("test_external_wallet")
external_address = self.def_wallet.getnewaddress()
address_info = self.def_wallet.getaddressinfo(external_address)
external_descriptor = address_info["desc"]
parent_txid = wallet.sendtoaddress(address=external_address, amount=1, fee_rate=1)
parent_tx = wallet.gettransaction(txid=parent_txid, verbose=True)
self.assert_undershoots_target(parent_tx)
spend_res = wallet.send(outputs=[{self.def_wallet.getnewaddress(): 0.5}], fee_rate=self.target_fee_rate, options={"inputs":[{"txid":parent_txid, "vout":find_vout_for_address(self.nodes[0], parent_txid, external_address)}], "solving_data":{"descriptors":[external_descriptor]}})
signed_psbt = self.def_wallet.walletprocesspsbt(spend_res["psbt"])
external_tx = self.def_wallet.finalizepsbt(signed_psbt["psbt"])
ancestor_aware_txid = self.def_wallet.sendrawtransaction(external_tx["hex"])
ancestor_aware_tx = self.def_wallet.gettransaction(txid=ancestor_aware_txid, verbose=True)
self.assert_spends_only_parents(ancestor_aware_tx, [parent_txid])
self.assert_beats_target(ancestor_aware_tx)
resulting_ancestry_fee_rate = self.calc_set_fee_rate([parent_tx, ancestor_aware_tx])
assert_greater_than_or_equal(resulting_ancestry_fee_rate, self.target_fee_rate)
assert_greater_than_or_equal(self.target_fee_rate*1.01, resulting_ancestry_fee_rate)
wallet.unloadwallet()
def run_test(self):
self.log.info("Starting UnconfirmedInputTest!")
self.target_fee_rate = 30
self.def_wallet = self.nodes[0].get_wallet_rpc(self.default_wallet_name)
self.generate(self.nodes[0], 110)
self.test_target_feerate_confirmed()
self.test_target_feerate_unconfirmed_high()
self.test_target_feerate_unconfirmed_low()
self.test_chain_of_unconfirmed_low()
self.test_two_low_feerate_unconfirmed_parents()
self.test_mixed_feerate_unconfirmed_parents()
self.test_chain_of_high_low()
self.test_chain_of_high_low_below_target_feerate()
self.test_target_feerate_unconfirmed_low_sffo()
self.test_preset_input_cpfp()
self.test_rbf_bumping()
self.test_target_feerate_unconfirmed_low_overlapping_ancestry()
self.test_sibling_tx_gets_ignored()
self.test_sibling_tx_bumps_parent()
self.test_confirmed_and_unconfirmed_parent()
self.test_external_input_unconfirmed_low()
if __name__ == '__main__':
UnconfirmedInputTest(__file__).main()
|
