aboutsummaryrefslogtreecommitdiff
path: root/test/functional/wallet_bumpfee.py
blob: 0ef78b0e1c08d95e86550e1b540ddf0314c32f7e (plain)
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
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
#!/usr/bin/env python3
# Copyright (c) 2016-2020 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 bumpfee RPC.

Verifies that the bumpfee RPC creates replacement transactions successfully when
its preconditions are met, and returns appropriate errors in other cases.

This module consists of around a dozen individual test cases implemented in the
top-level functions named as test_<test_case_description>. The test functions
can be disabled or reordered if needed for debugging. If new test cases are
added in the future, they should try to follow the same convention and not
make assumptions about execution order.
"""
from decimal import Decimal
import io

from test_framework.blocktools import add_witness_commitment, create_block, create_coinbase, send_to_witness
from test_framework.messages import BIP125_SEQUENCE_NUMBER, CTransaction
from test_framework.test_framework import BitcoinTestFramework
from test_framework.util import (
    assert_equal,
    assert_greater_than,
    assert_raises_rpc_error,
    hex_str_to_bytes,
)

WALLET_PASSPHRASE = "test"
WALLET_PASSPHRASE_TIMEOUT = 3600

# Fee rates (in BTC per 1000 vbytes)
INSUFFICIENT = 0.00001000
ECONOMICAL   = 0.00050000
NORMAL       = 0.00100000
HIGH         = 0.00500000
TOO_HIGH     = 1.00000000


class BumpFeeTest(BitcoinTestFramework):
    def set_test_params(self):
        self.num_nodes = 2
        self.setup_clean_chain = True
        self.extra_args = [[
            "-walletrbf={}".format(i),
            "-mintxfee=0.00002",
            "-addresstype=bech32",
        ] for i in range(self.num_nodes)]

    def skip_test_if_missing_module(self):
        self.skip_if_no_wallet()

    def run_test(self):
        # Encrypt wallet for test_locked_wallet_fails test
        self.nodes[1].encryptwallet(WALLET_PASSPHRASE)
        self.nodes[1].walletpassphrase(WALLET_PASSPHRASE, WALLET_PASSPHRASE_TIMEOUT)

        peer_node, rbf_node = self.nodes
        rbf_node_address = rbf_node.getnewaddress()

        # fund rbf node with 10 coins of 0.001 btc (100,000 satoshis)
        self.log.info("Mining blocks...")
        peer_node.generate(110)
        self.sync_all()
        for _ in range(25):
            peer_node.sendtoaddress(rbf_node_address, 0.001)
        self.sync_all()
        peer_node.generate(1)
        self.sync_all()
        assert_equal(rbf_node.getbalance(), Decimal("0.025"))

        self.log.info("Running tests")
        dest_address = peer_node.getnewaddress()
        test_invalid_parameters(rbf_node, dest_address)
        test_simple_bumpfee_succeeds(self, "default", rbf_node, peer_node, dest_address)
        test_simple_bumpfee_succeeds(self, "fee_rate", rbf_node, peer_node, dest_address)
        test_feerate_args(self, rbf_node, peer_node, dest_address)
        test_segwit_bumpfee_succeeds(self, rbf_node, dest_address)
        test_nonrbf_bumpfee_fails(self, peer_node, dest_address)
        test_notmine_bumpfee_fails(self, rbf_node, peer_node, dest_address)
        test_bumpfee_with_descendant_fails(self, rbf_node, rbf_node_address, dest_address)
        test_dust_to_fee(self, rbf_node, dest_address)
        test_watchonly_psbt(self, peer_node, rbf_node, dest_address)
        test_rebumping(self, rbf_node, dest_address)
        test_rebumping_not_replaceable(self, rbf_node, dest_address)
        test_unconfirmed_not_spendable(self, rbf_node, rbf_node_address)
        test_bumpfee_metadata(self, rbf_node, dest_address)
        test_locked_wallet_fails(self, rbf_node, dest_address)
        test_change_script_match(self, rbf_node, dest_address)
        test_settxfee(self, rbf_node, dest_address)
        test_maxtxfee_fails(self, rbf_node, dest_address)
        # These tests wipe out a number of utxos that are expected in other tests
        test_small_output_with_feerate_succeeds(self, rbf_node, dest_address)
        test_no_more_inputs_fails(self, rbf_node, dest_address)

def test_invalid_parameters(node, dest_address):
    txid = spend_one_input(node, dest_address)
    # invalid estimate mode
    assert_raises_rpc_error(-8, "Invalid estimate_mode parameter", node.bumpfee, txid, {
        "estimate_mode": "moo",
    })
    assert_raises_rpc_error(-3, "Expected type string", node.bumpfee, txid, {
        "estimate_mode": 38,
    })
    assert_raises_rpc_error(-3, "Expected type string", node.bumpfee, txid, {
        "estimate_mode": {
            "foo": "bar",
        },
    })
    assert_raises_rpc_error(-8, "Invalid estimate_mode parameter", node.bumpfee, txid, {
        "estimate_mode": Decimal("3.141592"),
    })
    # confTarget and conf_target
    assert_raises_rpc_error(-8, "confTarget and conf_target options should not both be set", node.bumpfee, txid, {
        "confTarget": 123,
        "conf_target": 456,
    })

def test_simple_bumpfee_succeeds(self, mode, rbf_node, peer_node, dest_address):
    self.log.info('Test simple bumpfee: {}'.format(mode))
    rbfid = spend_one_input(rbf_node, dest_address)
    rbftx = rbf_node.gettransaction(rbfid)
    self.sync_mempools((rbf_node, peer_node))
    assert rbfid in rbf_node.getrawmempool() and rbfid in peer_node.getrawmempool()
    if mode == "fee_rate":
        bumped_tx = rbf_node.bumpfee(rbfid, {"fee_rate": NORMAL})
    else:
        bumped_tx = rbf_node.bumpfee(rbfid)
    assert_equal(bumped_tx["errors"], [])
    assert bumped_tx["fee"] > -rbftx["fee"]
    assert_equal(bumped_tx["origfee"], -rbftx["fee"])
    assert "psbt" not in bumped_tx
    # check that bumped_tx propagates, original tx was evicted and has a wallet conflict
    self.sync_mempools((rbf_node, peer_node))
    assert bumped_tx["txid"] in rbf_node.getrawmempool()
    assert bumped_tx["txid"] in peer_node.getrawmempool()
    assert rbfid not in rbf_node.getrawmempool()
    assert rbfid not in peer_node.getrawmempool()
    oldwtx = rbf_node.gettransaction(rbfid)
    assert len(oldwtx["walletconflicts"]) > 0
    # check wallet transaction replaces and replaced_by values
    bumpedwtx = rbf_node.gettransaction(bumped_tx["txid"])
    assert_equal(oldwtx["replaced_by_txid"], bumped_tx["txid"])
    assert_equal(bumpedwtx["replaces_txid"], rbfid)


def test_feerate_args(self, rbf_node, peer_node, dest_address):
    self.log.info('Test fee_rate args')
    rbfid = spend_one_input(rbf_node, dest_address)
    self.sync_mempools((rbf_node, peer_node))
    assert rbfid in rbf_node.getrawmempool() and rbfid in peer_node.getrawmempool()

    assert_raises_rpc_error(-8, "conf_target can't be set with fee_rate. Please provide either a confirmation target in blocks for automatic fee estimation, or an explicit fee rate.", rbf_node.bumpfee, rbfid, {"fee_rate": NORMAL, "confTarget": 1})

    assert_raises_rpc_error(-3, "Unexpected key totalFee", rbf_node.bumpfee, rbfid, {"totalFee": NORMAL})
    assert_raises_rpc_error(-8, "conf_target can't be set with fee_rate. Please provide either a confirmation target in blocks for automatic fee estimation, or an explicit fee rate.", rbf_node.bumpfee, rbfid, {"fee_rate":0.00001, "confTarget": 1})

    # Bumping to just above minrelay should fail to increase total fee enough, at least
    assert_raises_rpc_error(-8, "Insufficient total fee", rbf_node.bumpfee, rbfid, {"fee_rate": INSUFFICIENT})

    assert_raises_rpc_error(-3, "Amount out of range", rbf_node.bumpfee, rbfid, {"fee_rate": -1})

    assert_raises_rpc_error(-4, "is too high (cannot be higher than", rbf_node.bumpfee, rbfid, {"fee_rate": TOO_HIGH})


def test_segwit_bumpfee_succeeds(self, rbf_node, dest_address):
    self.log.info('Test that segwit-sourcing bumpfee works')
    # Create a transaction with segwit output, then create an RBF transaction
    # which spends it, and make sure bumpfee can be called on it.

    segwit_in = next(u for u in rbf_node.listunspent() if u["amount"] == Decimal("0.001"))
    segwit_out = rbf_node.getaddressinfo(rbf_node.getnewaddress(address_type='p2sh-segwit'))
    segwitid = send_to_witness(
        use_p2wsh=False,
        node=rbf_node,
        utxo=segwit_in,
        pubkey=segwit_out["pubkey"],
        encode_p2sh=False,
        amount=Decimal("0.0009"),
        sign=True)

    rbfraw = rbf_node.createrawtransaction([{
        'txid': segwitid,
        'vout': 0,
        "sequence": BIP125_SEQUENCE_NUMBER
    }], {dest_address: Decimal("0.0005"),
         rbf_node.getrawchangeaddress(): Decimal("0.0003")})
    rbfsigned = rbf_node.signrawtransactionwithwallet(rbfraw)
    rbfid = rbf_node.sendrawtransaction(rbfsigned["hex"])
    assert rbfid in rbf_node.getrawmempool()

    bumped_tx = rbf_node.bumpfee(rbfid)
    assert bumped_tx["txid"] in rbf_node.getrawmempool()
    assert rbfid not in rbf_node.getrawmempool()


def test_nonrbf_bumpfee_fails(self, peer_node, dest_address):
    self.log.info('Test that we cannot replace a non RBF transaction')
    not_rbfid = peer_node.sendtoaddress(dest_address, Decimal("0.00090000"))
    assert_raises_rpc_error(-4, "not BIP 125 replaceable", peer_node.bumpfee, not_rbfid)


def test_notmine_bumpfee_fails(self, rbf_node, peer_node, dest_address):
    self.log.info('Test that it cannot bump fee if non-owned inputs are included')
    # here, the rbftx has a peer_node coin and then adds a rbf_node input
    # Note that this test depends upon the RPC code checking input ownership prior to change outputs
    # (since it can't use fundrawtransaction, it lacks a proper change output)
    utxos = [node.listunspent()[-1] for node in (rbf_node, peer_node)]
    inputs = [{
        "txid": utxo["txid"],
        "vout": utxo["vout"],
        "address": utxo["address"],
        "sequence": BIP125_SEQUENCE_NUMBER
    } for utxo in utxos]
    output_val = sum(utxo["amount"] for utxo in utxos) - Decimal("0.001")
    rawtx = rbf_node.createrawtransaction(inputs, {dest_address: output_val})
    signedtx = rbf_node.signrawtransactionwithwallet(rawtx)
    signedtx = peer_node.signrawtransactionwithwallet(signedtx["hex"])
    rbfid = rbf_node.sendrawtransaction(signedtx["hex"])
    assert_raises_rpc_error(-4, "Transaction contains inputs that don't belong to this wallet",
                            rbf_node.bumpfee, rbfid)


def test_bumpfee_with_descendant_fails(self, rbf_node, rbf_node_address, dest_address):
    self.log.info('Test that fee cannot be bumped when it has descendant')
    # parent is send-to-self, so we don't have to check which output is change when creating the child tx
    parent_id = spend_one_input(rbf_node, rbf_node_address)
    tx = rbf_node.createrawtransaction([{"txid": parent_id, "vout": 0}], {dest_address: 0.00020000})
    tx = rbf_node.signrawtransactionwithwallet(tx)
    rbf_node.sendrawtransaction(tx["hex"])
    assert_raises_rpc_error(-8, "Transaction has descendants in the wallet", rbf_node.bumpfee, parent_id)


def test_small_output_with_feerate_succeeds(self, rbf_node, dest_address):
    self.log.info('Testing small output with feerate bump succeeds')

    # Make sure additional inputs exist
    rbf_node.generatetoaddress(101, rbf_node.getnewaddress())
    rbfid = spend_one_input(rbf_node, dest_address)
    input_list = rbf_node.getrawtransaction(rbfid, 1)["vin"]
    assert_equal(len(input_list), 1)
    original_txin = input_list[0]
    self.log.info('Keep bumping until transaction fee out-spends non-destination value')
    tx_fee = 0
    while True:
        input_list = rbf_node.getrawtransaction(rbfid, 1)["vin"]
        new_item = list(input_list)[0]
        assert_equal(len(input_list), 1)
        assert_equal(original_txin["txid"], new_item["txid"])
        assert_equal(original_txin["vout"], new_item["vout"])
        rbfid_new_details = rbf_node.bumpfee(rbfid)
        rbfid_new = rbfid_new_details["txid"]
        raw_pool = rbf_node.getrawmempool()
        assert rbfid not in raw_pool
        assert rbfid_new in raw_pool
        rbfid = rbfid_new
        tx_fee = rbfid_new_details["fee"]

        # Total value from input not going to destination
        if tx_fee > Decimal('0.00050000'):
            break

    # input(s) have been added
    final_input_list = rbf_node.getrawtransaction(rbfid, 1)["vin"]
    assert_greater_than(len(final_input_list), 1)
    # Original input is in final set
    assert [txin for txin in final_input_list
            if txin["txid"] == original_txin["txid"]
            and txin["vout"] == original_txin["vout"]]

    rbf_node.generatetoaddress(1, rbf_node.getnewaddress())
    assert_equal(rbf_node.gettransaction(rbfid)["confirmations"], 1)


def test_dust_to_fee(self, rbf_node, dest_address):
    self.log.info('Test that bumped output that is dust is dropped to fee')
    rbfid = spend_one_input(rbf_node, dest_address)
    fulltx = rbf_node.getrawtransaction(rbfid, 1)
    # The DER formatting used by Bitcoin to serialize ECDSA signatures means that signatures can have a
    # variable size of 70-72 bytes (or possibly even less), with most being 71 or 72 bytes. The signature
    # in the witness is divided by 4 for the vsize, so this variance can take the weight across a 4-byte
    # boundary. Thus expected transaction size (p2wpkh, 1 input, 2 outputs) is 140-141 vbytes, usually 141.
    if not 140 <= fulltx["vsize"] <= 141:
        raise AssertionError("Invalid tx vsize of {} (140-141 expected), full tx: {}".format(fulltx["vsize"], fulltx))
    # Bump with fee_rate of 0.00350250 BTC per 1000 vbytes to create dust.
    # Expected fee is 141 vbytes * fee_rate 0.00350250 BTC / 1000 vbytes = 0.00049385 BTC.
    # or occasionally 140 vbytes * fee_rate 0.00350250 BTC / 1000 vbytes = 0.00049035 BTC.
    # Dust should be dropped to the fee, so actual bump fee is 0.00050000 BTC.
    bumped_tx = rbf_node.bumpfee(rbfid, {"fee_rate": 0.00350250})
    full_bumped_tx = rbf_node.getrawtransaction(bumped_tx["txid"], 1)
    assert_equal(bumped_tx["fee"], Decimal("0.00050000"))
    assert_equal(len(fulltx["vout"]), 2)
    assert_equal(len(full_bumped_tx["vout"]), 1)  # change output is eliminated
    assert_equal(full_bumped_tx["vout"][0]['value'], Decimal("0.00050000"))


def test_settxfee(self, rbf_node, dest_address):
    self.log.info('Test settxfee')
    assert_raises_rpc_error(-8, "txfee cannot be less than min relay tx fee", rbf_node.settxfee, Decimal('0.000005'))
    assert_raises_rpc_error(-8, "txfee cannot be less than wallet min fee", rbf_node.settxfee, Decimal('0.000015'))
    # check that bumpfee reacts correctly to the use of settxfee (paytxfee)
    rbfid = spend_one_input(rbf_node, dest_address)
    requested_feerate = Decimal("0.00025000")
    rbf_node.settxfee(requested_feerate)
    bumped_tx = rbf_node.bumpfee(rbfid)
    actual_feerate = bumped_tx["fee"] * 1000 / rbf_node.getrawtransaction(bumped_tx["txid"], True)["vsize"]
    # Assert that the difference between the requested feerate and the actual
    # feerate of the bumped transaction is small.
    assert_greater_than(Decimal("0.00001000"), abs(requested_feerate - actual_feerate))
    rbf_node.settxfee(Decimal("0.00000000"))  # unset paytxfee

    # check that settxfee respects -maxtxfee
    self.restart_node(1, ['-maxtxfee=0.000025'] + self.extra_args[1])
    assert_raises_rpc_error(-8, "txfee cannot be more than wallet max tx fee", rbf_node.settxfee, Decimal('0.00003'))
    self.restart_node(1, self.extra_args[1])
    rbf_node.walletpassphrase(WALLET_PASSPHRASE, WALLET_PASSPHRASE_TIMEOUT)


def test_maxtxfee_fails(self, rbf_node, dest_address):
    self.log.info('Test that bumpfee fails when it hits -maxtxfee')
    # size of bumped transaction (p2wpkh, 1 input, 2 outputs): 141 vbytes
    # expected bump fee of 141 vbytes * 0.00200000 BTC / 1000 vbytes = 0.00002820 BTC
    # which exceeds maxtxfee and is expected to raise
    self.restart_node(1, ['-maxtxfee=0.000025'] + self.extra_args[1])
    rbf_node.walletpassphrase(WALLET_PASSPHRASE, WALLET_PASSPHRASE_TIMEOUT)
    rbfid = spend_one_input(rbf_node, dest_address)
    assert_raises_rpc_error(-4, "Unable to create transaction. Fee exceeds maximum configured by -maxtxfee", rbf_node.bumpfee, rbfid)
    self.restart_node(1, self.extra_args[1])
    rbf_node.walletpassphrase(WALLET_PASSPHRASE, WALLET_PASSPHRASE_TIMEOUT)


def test_watchonly_psbt(self, peer_node, rbf_node, dest_address):
    self.log.info('Test that PSBT is returned for bumpfee in watchonly wallets')
    priv_rec_desc = "wpkh([00000001/84'/1'/0']tprv8ZgxMBicQKsPd7Uf69XL1XwhmjHopUGep8GuEiJDZmbQz6o58LninorQAfcKZWARbtRtfnLcJ5MQ2AtHcQJCCRUcMRvmDUjyEmNUWwx8UbK/0/*)#rweraev0"
    pub_rec_desc = rbf_node.getdescriptorinfo(priv_rec_desc)["descriptor"]
    priv_change_desc = "wpkh([00000001/84'/1'/0']tprv8ZgxMBicQKsPd7Uf69XL1XwhmjHopUGep8GuEiJDZmbQz6o58LninorQAfcKZWARbtRtfnLcJ5MQ2AtHcQJCCRUcMRvmDUjyEmNUWwx8UbK/1/*)#j6uzqvuh"
    pub_change_desc = rbf_node.getdescriptorinfo(priv_change_desc)["descriptor"]
    # Create a wallet with private keys that can sign PSBTs
    rbf_node.createwallet(wallet_name="signer", disable_private_keys=False, blank=True)
    signer = rbf_node.get_wallet_rpc("signer")
    assert signer.getwalletinfo()['private_keys_enabled']
    result = signer.importmulti([{
        "desc": priv_rec_desc,
        "timestamp": 0,
        "range": [0,1],
        "internal": False,
        "keypool": False # Keys can only be imported to the keypool when private keys are disabled
    },
    {
        "desc": priv_change_desc,
        "timestamp": 0,
        "range": [0, 0],
        "internal": True,
        "keypool": False
    }])
    assert_equal(result, [{'success': True}, {'success': True}])

    # Create another wallet with just the public keys, which creates PSBTs
    rbf_node.createwallet(wallet_name="watcher", disable_private_keys=True, blank=True)
    watcher = rbf_node.get_wallet_rpc("watcher")
    assert not watcher.getwalletinfo()['private_keys_enabled']

    result = watcher.importmulti([{
        "desc": pub_rec_desc,
        "timestamp": 0,
        "range": [0, 10],
        "internal": False,
        "keypool": True,
        "watchonly": True
    }, {
        "desc": pub_change_desc,
        "timestamp": 0,
        "range": [0, 10],
        "internal": True,
        "keypool": True,
        "watchonly": True
    }])
    assert_equal(result, [{'success': True}, {'success': True}])

    funding_address1 = watcher.getnewaddress(address_type='bech32')
    funding_address2 = watcher.getnewaddress(address_type='bech32')
    peer_node.sendmany("", {funding_address1: 0.001, funding_address2: 0.001})
    peer_node.generate(1)
    self.sync_all()

    # Create single-input PSBT for transaction to be bumped
    psbt = watcher.walletcreatefundedpsbt([], {dest_address: 0.0005}, 0, {"feeRate": 0.00001}, True)['psbt']
    psbt_signed = signer.walletprocesspsbt(psbt=psbt, sign=True, sighashtype="ALL", bip32derivs=True)
    psbt_final = watcher.finalizepsbt(psbt_signed["psbt"])
    original_txid = watcher.sendrawtransaction(psbt_final["hex"])
    assert_equal(len(watcher.decodepsbt(psbt)["tx"]["vin"]), 1)

    # Bump fee, obnoxiously high to add additional watchonly input
    bumped_psbt = watcher.bumpfee(original_txid, {"fee_rate": HIGH})
    assert_greater_than(len(watcher.decodepsbt(bumped_psbt['psbt'])["tx"]["vin"]), 1)
    assert "txid" not in bumped_psbt
    assert_equal(bumped_psbt["origfee"], -watcher.gettransaction(original_txid)["fee"])
    assert not watcher.finalizepsbt(bumped_psbt["psbt"])["complete"]

    # Sign bumped transaction
    bumped_psbt_signed = signer.walletprocesspsbt(psbt=bumped_psbt["psbt"], sign=True, sighashtype="ALL", bip32derivs=True)
    bumped_psbt_final = watcher.finalizepsbt(bumped_psbt_signed["psbt"])
    assert bumped_psbt_final["complete"]

    # Broadcast bumped transaction
    bumped_txid = watcher.sendrawtransaction(bumped_psbt_final["hex"])
    assert bumped_txid in rbf_node.getrawmempool()
    assert original_txid not in rbf_node.getrawmempool()

    rbf_node.unloadwallet("watcher")
    rbf_node.unloadwallet("signer")


def test_rebumping(self, rbf_node, dest_address):
    self.log.info('Test that re-bumping the original tx fails, but bumping successor works')
    rbfid = spend_one_input(rbf_node, dest_address)
    bumped = rbf_node.bumpfee(rbfid, {"fee_rate": ECONOMICAL})
    assert_raises_rpc_error(-4, "already bumped", rbf_node.bumpfee, rbfid, {"fee_rate": NORMAL})
    rbf_node.bumpfee(bumped["txid"], {"fee_rate": NORMAL})


def test_rebumping_not_replaceable(self, rbf_node, dest_address):
    self.log.info('Test that re-bumping non-replaceable fails')
    rbfid = spend_one_input(rbf_node, dest_address)
    bumped = rbf_node.bumpfee(rbfid, {"fee_rate": ECONOMICAL, "replaceable": False})
    assert_raises_rpc_error(-4, "Transaction is not BIP 125 replaceable", rbf_node.bumpfee, bumped["txid"],
                            {"fee_rate": NORMAL})


def test_unconfirmed_not_spendable(self, rbf_node, rbf_node_address):
    self.log.info('Test that unconfirmed outputs from bumped txns are not spendable')
    rbfid = spend_one_input(rbf_node, rbf_node_address)
    rbftx = rbf_node.gettransaction(rbfid)["hex"]
    assert rbfid in rbf_node.getrawmempool()
    bumpid = rbf_node.bumpfee(rbfid)["txid"]
    assert bumpid in rbf_node.getrawmempool()
    assert rbfid not in rbf_node.getrawmempool()

    # check that outputs from the bump transaction are not spendable
    # due to the replaces_txid check in CWallet::AvailableCoins
    assert_equal([t for t in rbf_node.listunspent(minconf=0, include_unsafe=False) if t["txid"] == bumpid], [])

    # submit a block with the rbf tx to clear the bump tx out of the mempool,
    # then invalidate the block so the rbf tx will be put back in the mempool.
    # This makes it possible to check whether the rbf tx outputs are
    # spendable before the rbf tx is confirmed.
    block = submit_block_with_tx(rbf_node, rbftx)
    # Can not abandon conflicted tx
    assert_raises_rpc_error(-5, 'Transaction not eligible for abandonment', lambda: rbf_node.abandontransaction(txid=bumpid))
    rbf_node.invalidateblock(block.hash)
    # Call abandon to make sure the wallet doesn't attempt to resubmit
    # the bump tx and hope the wallet does not rebroadcast before we call.
    rbf_node.abandontransaction(bumpid)
    assert bumpid not in rbf_node.getrawmempool()
    assert rbfid in rbf_node.getrawmempool()

    # check that outputs from the rbf tx are not spendable before the
    # transaction is confirmed, due to the replaced_by_txid check in
    # CWallet::AvailableCoins
    assert_equal([t for t in rbf_node.listunspent(minconf=0, include_unsafe=False) if t["txid"] == rbfid], [])

    # check that the main output from the rbf tx is spendable after confirmed
    rbf_node.generate(1)
    assert_equal(
        sum(1 for t in rbf_node.listunspent(minconf=0, include_unsafe=False)
            if t["txid"] == rbfid and t["address"] == rbf_node_address and t["spendable"]), 1)


def test_bumpfee_metadata(self, rbf_node, dest_address):
    self.log.info('Test that bumped txn metadata persists to new txn record')
    assert(rbf_node.getbalance() < 49)
    rbf_node.generatetoaddress(101, rbf_node.getnewaddress())
    rbfid = rbf_node.sendtoaddress(dest_address, 49, "comment value", "to value")
    bumped_tx = rbf_node.bumpfee(rbfid)
    bumped_wtx = rbf_node.gettransaction(bumped_tx["txid"])
    assert_equal(bumped_wtx["comment"], "comment value")
    assert_equal(bumped_wtx["to"], "to value")


def test_locked_wallet_fails(self, rbf_node, dest_address):
    self.log.info('Test that locked wallet cannot bump txn')
    rbfid = spend_one_input(rbf_node, dest_address)
    rbf_node.walletlock()
    assert_raises_rpc_error(-13, "Please enter the wallet passphrase with walletpassphrase first.",
                            rbf_node.bumpfee, rbfid)
    rbf_node.walletpassphrase(WALLET_PASSPHRASE, WALLET_PASSPHRASE_TIMEOUT)


def test_change_script_match(self, rbf_node, dest_address):
    self.log.info('Test that the same change addresses is used for the replacement transaction when possible')

    def get_change_address(tx):
        tx_details = rbf_node.getrawtransaction(tx, 1)
        txout_addresses = [txout['scriptPubKey']['addresses'][0] for txout in tx_details["vout"]]
        return [address for address in txout_addresses if rbf_node.getaddressinfo(address)["ischange"]]

    # Check that there is only one change output
    rbfid = spend_one_input(rbf_node, dest_address)
    change_addresses = get_change_address(rbfid)
    assert_equal(len(change_addresses), 1)

    # Now find that address in each subsequent tx, and no other change
    bumped_total_tx = rbf_node.bumpfee(rbfid, {"fee_rate": ECONOMICAL})
    assert_equal(change_addresses, get_change_address(bumped_total_tx['txid']))
    bumped_rate_tx = rbf_node.bumpfee(bumped_total_tx["txid"])
    assert_equal(change_addresses, get_change_address(bumped_rate_tx['txid']))


def spend_one_input(node, dest_address, change_size=Decimal("0.00049000")):
    tx_input = dict(
        sequence=BIP125_SEQUENCE_NUMBER, **next(u for u in node.listunspent() if u["amount"] == Decimal("0.00100000")))
    destinations = {dest_address: Decimal("0.00050000")}
    if change_size > 0:
        destinations[node.getrawchangeaddress()] = change_size
    rawtx = node.createrawtransaction([tx_input], destinations)
    signedtx = node.signrawtransactionwithwallet(rawtx)
    txid = node.sendrawtransaction(signedtx["hex"])
    return txid


def submit_block_with_tx(node, tx):
    ctx = CTransaction()
    ctx.deserialize(io.BytesIO(hex_str_to_bytes(tx)))

    tip = node.getbestblockhash()
    height = node.getblockcount() + 1
    block_time = node.getblockheader(tip)["mediantime"] + 1
    block = create_block(int(tip, 16), create_coinbase(height), block_time)
    block.vtx.append(ctx)
    block.rehash()
    block.hashMerkleRoot = block.calc_merkle_root()
    add_witness_commitment(block)
    block.solve()
    node.submitblock(block.serialize().hex())
    return block


def test_no_more_inputs_fails(self, rbf_node, dest_address):
    self.log.info('Test that bumpfee fails when there are no available confirmed outputs')
    # feerate rbf requires confirmed outputs when change output doesn't exist or is insufficient
    rbf_node.generatetoaddress(1, dest_address)
    # spend all funds, no change output
    rbfid = rbf_node.sendtoaddress(rbf_node.getnewaddress(), rbf_node.getbalance(), "", "", True)
    assert_raises_rpc_error(-4, "Unable to create transaction. Insufficient funds", rbf_node.bumpfee, rbfid)


if __name__ == "__main__":
    BumpFeeTest().main()