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Stable release v32.1bitcoin/bitcoin · f0de87f04062 ↗3,020 source files · 47.5 MB stored on the server440 file guides

Release published 2026-10-28 · Snapshot fetched 2026-11-01. Latest stable release at fetch time; development branches and Git history are excluded. Only the selected code window and visible folders load here.

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1#!/usr/bin/env python3
2# Copyright (c) 2022-present The Bitcoin Core developers
3# Distributed under the MIT software license, see the accompanying
4# file COPYING or http://www.opensource.org/licenses/mit-license.php.
5
6from decimal import Decimal, getcontext
7
8from test_framework.test_framework import BitcoinTestFramework
9from test_framework.util import (
10    assert_greater_than_or_equal,
11    assert_equal,
12    find_vout_for_address,
13)
14
15class UnconfirmedInputTest(BitcoinTestFramework):
16    def set_test_params(self):
17        getcontext().prec=9
18        self.setup_clean_chain = True
19        self.num_nodes = 1
20
21    def setup_and_fund_wallet(self, walletname):
22        self.nodes[0].createwallet(walletname)
23        wallet = self.nodes[0].get_wallet_rpc(walletname)
24
25        self.def_wallet.sendtoaddress(address=wallet.getnewaddress(), amount=2)
26        self.generate(self.nodes[0], 1) # confirm funding tx
27        return wallet
28
29    def skip_test_if_missing_module(self):
30        self.skip_if_no_wallet()
31
32    def calc_fee_rate(self, tx):
33        fee = Decimal(-1e8) * tx["fee"]
34        vsize = tx["decoded"]["vsize"]
35        return fee / vsize
36
37    def calc_set_fee_rate(self, txs):
38        fees = Decimal(-1e8) * sum([tx["fee"] for tx in txs]) # fee is negative!
39        vsizes = sum([tx["decoded"]["vsize"] for tx in txs])
40        return fees / vsizes
41
42    def assert_spends_only_parents(self, tx, parent_txids):
43        parent_checklist = parent_txids.copy()
44        number_inputs = len(tx["decoded"]["vin"])
45        assert_equal(number_inputs, len(parent_txids))
46        for i in range(number_inputs):
47            txid_of_input = tx["decoded"]["vin"][i]["txid"]
48            assert txid_of_input in parent_checklist
49            parent_checklist.remove(txid_of_input)
50
51    def assert_undershoots_target(self, tx):
52        resulting_fee_rate = self.calc_fee_rate(tx)
53        assert_greater_than_or_equal(self.target_fee_rate, resulting_fee_rate)
54
55    def assert_beats_target(self, tx):
56        resulting_fee_rate = self.calc_fee_rate(tx)
57        assert_greater_than_or_equal(resulting_fee_rate, self.target_fee_rate)
58
59    # Meta-Test: try feerate testing function on confirmed UTXO
60    def test_target_feerate_confirmed(self):
61        self.log.info("Start test feerate with confirmed input")
62        wallet = self.setup_and_fund_wallet("confirmed_wallet")
63
64        ancestor_aware_txid = wallet.sendtoaddress(address=self.def_wallet.getnewaddress(), amount=0.5, fee_rate=self.target_fee_rate)
65        ancestor_aware_tx = wallet.gettransaction(txid=ancestor_aware_txid, verbose=True)
66        self.assert_beats_target(ancestor_aware_tx)
67
68        wallet.unloadwallet()
69
70    # Spend unconfirmed UTXO from high-feerate parent
71    def test_target_feerate_unconfirmed_high(self):
72        self.log.info("Start test feerate with high feerate unconfirmed input")
73        wallet = self.setup_and_fund_wallet("unconfirmed_high_wallet")
74
75        # Send unconfirmed transaction with high feerate to testing wallet
76        parent_txid = wallet.sendtoaddress(address=wallet.getnewaddress(), amount=1, fee_rate=3*self.target_fee_rate)
77        parent_tx = wallet.gettransaction(txid=parent_txid, verbose=True)
78        self.assert_beats_target(parent_tx)
79
80        ancestor_aware_txid = wallet.sendtoaddress(address=self.def_wallet.getnewaddress(), amount=0.5, fee_rate=self.target_fee_rate)
81        ancestor_aware_tx = wallet.gettransaction(txid=ancestor_aware_txid, verbose=True)
82
83        self.assert_spends_only_parents(ancestor_aware_tx, [parent_txid])
84
85        self.assert_beats_target(ancestor_aware_tx)
86
87        wallet.unloadwallet()
88
89    # Spend unconfirmed UTXO from low-feerate parent. Expect that parent gets
90    # bumped to target feerate.
91    def test_target_feerate_unconfirmed_low(self):
92        self.log.info("Start test feerate with low feerate unconfirmed input")
93        wallet = self.setup_and_fund_wallet("unconfirmed_low_wallet")
94
95        parent_txid = wallet.sendtoaddress(address=wallet.getnewaddress(), amount=1, fee_rate=1)
96        parent_tx = wallet.gettransaction(txid=parent_txid, verbose=True)
97
98        self.assert_undershoots_target(parent_tx)
99
100        ancestor_aware_txid = wallet.sendtoaddress(address=self.def_wallet.getnewaddress(), amount=0.5, fee_rate=self.target_fee_rate)
101        ancestor_aware_tx = wallet.gettransaction(txid=ancestor_aware_txid, verbose=True)
102
103        self.assert_spends_only_parents(ancestor_aware_tx, [parent_txid])
104
105        self.assert_beats_target(ancestor_aware_tx)
106        resulting_ancestry_fee_rate = self.calc_set_fee_rate([parent_tx, ancestor_aware_tx])
107        assert_greater_than_or_equal(resulting_ancestry_fee_rate, self.target_fee_rate)
108        assert_greater_than_or_equal(self.target_fee_rate*1.01, resulting_ancestry_fee_rate)
109
110        wallet.unloadwallet()
111
112    # Spend UTXO with unconfirmed low feerate parent and grandparent
113    # txs. Expect that both ancestors get bumped to target feerate.
114    def test_chain_of_unconfirmed_low(self):
115        self.log.info("Start test with parent and grandparent tx")
116        wallet = self.setup_and_fund_wallet("unconfirmed_low_chain_wallet")
117
118        grandparent_txid = wallet.sendtoaddress(address=wallet.getnewaddress(), amount=1.8, fee_rate=1)
119        gp_tx = wallet.gettransaction(txid=grandparent_txid, verbose=True)
120
121        self.assert_undershoots_target(gp_tx)
122
123        parent_txid = wallet.sendtoaddress(address=wallet.getnewaddress(), amount=1.5, fee_rate=2)
124        p_tx = wallet.gettransaction(txid=parent_txid, verbose=True)
125
126        self.assert_undershoots_target(p_tx)
127
128        ancestor_aware_txid = wallet.sendtoaddress(address=self.def_wallet.getnewaddress(), amount=1.3, fee_rate=self.target_fee_rate)
129        ancestor_aware_tx = wallet.gettransaction(txid=ancestor_aware_txid, verbose=True)
130        self.assert_spends_only_parents(ancestor_aware_tx, [parent_txid])
131
132        self.assert_beats_target(ancestor_aware_tx)
133        resulting_ancestry_fee_rate = self.calc_set_fee_rate([gp_tx, p_tx, ancestor_aware_tx])
134        assert_greater_than_or_equal(resulting_ancestry_fee_rate, self.target_fee_rate)
135        assert_greater_than_or_equal(self.target_fee_rate*1.01, resulting_ancestry_fee_rate)
136
137        wallet.unloadwallet()
138
139    # Spend unconfirmed UTXOs from two low feerate parent txs.
140    def test_two_low_feerate_unconfirmed_parents(self):
141        self.log.info("Start test with two unconfirmed parent txs")
142        wallet = self.setup_and_fund_wallet("two_parents_wallet")
143
144        # Add second UTXO to tested wallet
145        self.def_wallet.sendtoaddress(address=wallet.getnewaddress(), amount=2)
146        self.generate(self.nodes[0], 1) # confirm funding tx
147
148        parent_one_txid = wallet.sendtoaddress(address=wallet.getnewaddress(), amount=1.5, fee_rate=2)
149        p_one_tx = wallet.gettransaction(txid=parent_one_txid, verbose=True)
150        self.assert_undershoots_target(p_one_tx)
151
152        parent_two_txid = wallet.sendtoaddress(address=wallet.getnewaddress(), amount=1.5, fee_rate=1)
153        p_two_tx = wallet.gettransaction(txid=parent_two_txid, verbose=True)
154        self.assert_undershoots_target(p_two_tx)
155
156        ancestor_aware_txid = wallet.sendtoaddress(address=self.def_wallet.getnewaddress(), amount=2.8, fee_rate=self.target_fee_rate)
157        ancestor_aware_tx = wallet.gettransaction(txid=ancestor_aware_txid, verbose=True)
158        self.assert_spends_only_parents(ancestor_aware_tx, [parent_one_txid, parent_two_txid])
159
160        self.assert_beats_target(ancestor_aware_tx)
161        resulting_ancestry_fee_rate = self.calc_set_fee_rate([p_one_tx, p_two_tx, ancestor_aware_tx])
162        assert_greater_than_or_equal(resulting_ancestry_fee_rate, self.target_fee_rate)
163        assert_greater_than_or_equal(self.target_fee_rate*1.01, resulting_ancestry_fee_rate)
164
165        wallet.unloadwallet()
166
167    # Spend two unconfirmed inputs, one each from low and high feerate parents
168    def test_mixed_feerate_unconfirmed_parents(self):
169        self.log.info("Start test with two unconfirmed parent txs one of which has a higher feerate")
170        wallet = self.setup_and_fund_wallet("two_mixed_parents_wallet")
171
172        # Add second UTXO to tested wallet
173        self.def_wallet.sendtoaddress(address=wallet.getnewaddress(), amount=2)
174        self.generate(self.nodes[0], 1) # confirm funding tx
175
176        high_parent_txid = wallet.sendtoaddress(address=wallet.getnewaddress(), amount=1.5, fee_rate=self.target_fee_rate*2)
177        p_high_tx = wallet.gettransaction(txid=high_parent_txid, verbose=True)
178        # This time the parent is greater than the child
179        self.assert_beats_target(p_high_tx)
180
181        parent_low_txid = wallet.sendtoaddress(address=wallet.getnewaddress(), amount=1.5, fee_rate=1)
182        p_low_tx = wallet.gettransaction(txid=parent_low_txid, verbose=True)
183        # Other parent needs bump
184        self.assert_undershoots_target(p_low_tx)
185
186        ancestor_aware_txid = wallet.sendtoaddress(address=self.def_wallet.getnewaddress(), amount=2.8, fee_rate=self.target_fee_rate)
187        ancestor_aware_tx = wallet.gettransaction(txid=ancestor_aware_txid, verbose=True)
188        self.assert_spends_only_parents(ancestor_aware_tx, [parent_low_txid, high_parent_txid])
189
190        self.assert_beats_target(ancestor_aware_tx)
191        resulting_ancestry_fee_rate = self.calc_set_fee_rate([p_high_tx, p_low_tx, ancestor_aware_tx])
192        assert_greater_than_or_equal(resulting_ancestry_fee_rate, self.target_fee_rate)
193
194        resulting_bumped_ancestry_fee_rate = self.calc_set_fee_rate([p_low_tx, ancestor_aware_tx])
195        assert_greater_than_or_equal(resulting_bumped_ancestry_fee_rate, self.target_fee_rate)
196        assert_greater_than_or_equal(self.target_fee_rate*1.01, resulting_bumped_ancestry_fee_rate)
197
198        wallet.unloadwallet()
199
200    # Spend from chain with high feerate grandparent and low feerate parent
201    def test_chain_of_high_low(self):
202        self.log.info("Start test with low parent and high grandparent tx")
203        wallet = self.setup_and_fund_wallet("high_low_chain_wallet")
204
205        grandparent_txid = wallet.sendtoaddress(address=wallet.getnewaddress(), amount=1.8, fee_rate=self.target_fee_rate * 10)
206        gp_tx = wallet.gettransaction(txid=grandparent_txid, verbose=True)
207        # grandparent has higher feerate
208        self.assert_beats_target(gp_tx)
209
210        parent_txid = wallet.sendtoaddress(address=wallet.getnewaddress(), amount=1.5, fee_rate=1)
211        # parent is low feerate
212        p_tx = wallet.gettransaction(txid=parent_txid, verbose=True)
213        self.assert_undershoots_target(p_tx)
214
215        ancestor_aware_txid = wallet.sendtoaddress(address=self.def_wallet.getnewaddress(), amount=1.3, fee_rate=self.target_fee_rate)
216        ancestor_aware_tx = wallet.gettransaction(txid=ancestor_aware_txid, verbose=True)
217        self.assert_spends_only_parents(ancestor_aware_tx, [parent_txid])
218
219        self.assert_beats_target(ancestor_aware_tx)
220        resulting_ancestry_fee_rate = self.calc_set_fee_rate([p_tx, ancestor_aware_tx])
221        assert_greater_than_or_equal(resulting_ancestry_fee_rate, self.target_fee_rate)
222        assert_greater_than_or_equal(self.target_fee_rate*1.01, resulting_ancestry_fee_rate)
223        resulting_ancestry_fee_rate_with_high_feerate_gp = self.calc_set_fee_rate([gp_tx, p_tx, ancestor_aware_tx])
224        # Check that we bumped the parent without relying on the grandparent
225        assert_greater_than_or_equal(resulting_ancestry_fee_rate_with_high_feerate_gp, self.target_fee_rate*1.1)
226
227        wallet.unloadwallet()
228
229    # Spend UTXO from chain of unconfirmed transactions with low feerate
230    # grandparent and even lower feerate parent
231    def test_chain_of_high_low_below_target_feerate(self):
232        self.log.info("Start test with low parent and higher low grandparent tx")
233        wallet = self.setup_and_fund_wallet("low_and_lower_chain_wallet")
234
235        grandparent_txid = wallet.sendtoaddress(address=wallet.getnewaddress(), amount=1.8, fee_rate=5)
236        gp_tx = wallet.gettransaction(txid=grandparent_txid, verbose=True)
237
238        # grandparent has higher feerate, but below target
239        self.assert_undershoots_target(gp_tx)
240
241        parent_txid = wallet.sendtoaddress(address=wallet.getnewaddress(), amount=1.5, fee_rate=1)
242        p_tx = wallet.gettransaction(txid=parent_txid, verbose=True)
243        # parent even lower
244        self.assert_undershoots_target(p_tx)
245
246        ancestor_aware_txid = wallet.sendtoaddress(address=self.def_wallet.getnewaddress(), amount=1.3, fee_rate=self.target_fee_rate)
247        ancestor_aware_tx = wallet.gettransaction(txid=ancestor_aware_txid, verbose=True)
248        self.assert_spends_only_parents(ancestor_aware_tx, [parent_txid])
249
250        self.assert_beats_target(ancestor_aware_tx)

src/wallet/receive.cpp

src/wallet/coinselection.cpp

src/consensus/validation.h

src/primitives/transaction.cpp

src/script/descriptor.cpp

src/bitcoin-cli.cpp

src/rpc/blockchain.cpp

src/rpc/rawtransaction.cpp

src/init.cpp

src/crypto/sha256.cpp

src/consensus/merkle.h

src/consensus/tx_check.h

src/consensus/tx_verify.h

src/policy/feerate.h

src/policy/feerate.cpp

src/primitives/transaction_identifier.h

src/chainparamsbase.h

src/chainparamsbase.cpp

src/util/moneystr.cpp

src/crypto/ripemd160.h

src/crypto/sha1.h

src/crypto/sha512.h

src/crypto/hmac_sha256.h

src/crypto/hmac_sha512.h

src/crypto/hmac_sha256.cpp

src/crypto/hmac_sha512.cpp

src/crypto/hkdf_sha256_32.h

src/crypto/hkdf_sha256_32.cpp

src/support/cleanse.h

src/support/cleanse.cpp

src/crypto/siphash.cpp

src/crypto/muhash.h

src/crypto/chacha20.h

src/crypto/poly1305.h

src/crypto/chacha20poly1305.h

src/crypto/chacha20poly1305.cpp

src/util/chaintype.cpp

src/util/obfuscation.h

src/util/byte_units.h

src/util/overflow.h

src/blockencodings.cpp

src/net_permissions.cpp

src/policy/packages.cpp

src/policy/rbf.cpp

src/policy/truc_policy.cpp

src/policy/ephemeral_policy.cpp

src/policy/settings.cpp

src/policy/policy.cpp

src/node/transaction.cpp

src/node/coin.cpp

src/rpc/client.cpp

src/rpc/external_signer.cpp

src/rpc/request.cpp

src/rpc/server_util.cpp

src/rpc/fees.cpp

src/rpc/output_script.cpp

src/rpc/rawtransaction_util.cpp

src/rpc/rawtransaction_util.h

src/rpc/register.h

src/rpc/request.h

src/rpc/server_util.h

src/rpc/protocol.h

src/rpc/server.h

src/rpc/signmessage.cpp

src/rpc/txoutproof.cpp

src/rpc/util.cpp

src/rpc/util.h

src/wallet/rpc/addresses.cpp

src/wallet/rpc/backup.cpp

src/wallet/rpc/coins.cpp

src/wallet/rpc/encrypt.cpp

src/wallet/rpc/signmessage.cpp

src/wallet/rpc/util.cpp

src/wallet/rpc/util.h

src/wallet/coincontrol.cpp

src/wallet/coincontrol.h

src/wallet/context.cpp

src/wallet/context.h

src/wallet/crypter.cpp

src/wallet/crypter.h

src/wallet/db.cpp

src/wallet/export.cpp

src/wallet/external_signer_scriptpubkeyman.cpp

src/wallet/rpc/spend.cpp

src/wallet/rpc/transactions.cpp

src/wallet/rpc/wallet.cpp

src/wallet/feebumper.cpp

src/wallet/feebumper.h

src/index/base.h

src/index/base.cpp

src/index/txindex.h

src/index/txindex.cpp

src/index/txindex_key.h

src/index/txospenderindex.h

src/index/txospenderindex.cpp

src/index/blockfilterindex.h

src/index/blockfilterindex.cpp

src/index/coinstatsindex.h

src/index/coinstatsindex.cpp

src/index/db_key.h

src/index/disktxpos.h

src/kernel/chain.cpp

src/kernel/chain.h

src/kernel/checks.cpp

src/kernel/checks.h

src/kernel/context.cpp

src/kernel/context.h

src/kernel/cs_main.cpp

src/kernel/cs_main.h

src/kernel/disconnected_transactions.cpp

src/kernel/disconnected_transactions.h

src/kernel/mempool_removal_reason.cpp

src/kernel/mempool_removal_reason.h

src/kernel/coinstats.cpp

src/kernel/coinstats.h

src/kernel/chainparams.cpp

src/kernel/chainparams.h

src/wallet/sqlite.cpp

src/wallet/sqlite.h

src/wallet/transaction.cpp

src/wallet/transaction.h

src/wallet/dump.cpp

src/wallet/dump.h

src/wallet/init.cpp

src/wallet/walletutil.cpp

src/wallet/walletutil.h

src/wallet/wallettool.cpp

src/wallet/wallettool.h

src/wallet/export.h

src/wallet/migrate.cpp

src/wallet/migrate.h

src/wallet/db.h

src/wallet/walletdb.cpp

src/wallet/interfaces.cpp

src/wallet/scriptpubkeyman.cpp

src/wallet/scriptpubkeyman.h

src/kernel/bitcoinkernel.cpp

src/kernel/bitcoinkernel.h

src/kernel/bitcoinkernel_wrapper.h

src/node/chainstate.cpp

src/node/chainstate.h

src/node/blockstorage.cpp

src/node/blockstorage.h

src/node/mempool_persist.cpp

src/node/mempool_persist.h

src/node/utxo_snapshot.cpp

src/node/utxo_snapshot.h

src/node/kernel_notifications.cpp

src/node/kernel_notifications.h

src/node/blockmanager_args.cpp

src/kernel/blockmanager_opts.h

src/util/expected.cpp

src/policy/settings.h

src/util/types.h

src/kernel/messagestartchars.h

src/kernel/warning.h

src/util/exception.h

src/common/license_info.h

src/node/coins_view_args.h

src/node/database_args.h

src/util/batchpriority.h

src/util/ui_change_type.h

src/node/coins_view_args.cpp

src/node/peerman_args.h

src/util/serfloat.h

src/node/blockmanager_args.h

src/node/database_args.cpp

src/util/overloaded.h

src/interfaces/types.h

src/node/chainstatemanager_args.h

src/node/minisketchwrapper.h

src/util/macros.h

src/util/syserror.h

src/common/run_command.h

src/util/bytevectorhash.cpp

src/node/mempool_persist_args.cpp

src/util/exec.h

src/util/rbf.h

src/crypto/hex_base.h

src/node/mempool_persist_args.h

src/interfaces/echo.h

src/util/any.h

src/util/batchpriority.cpp

src/util/threadnames.h

src/node/coin.h

src/node/mempool_args.h

src/util/asmap.h

src/util/bytevectorhash.h

src/node/context.cpp

src/util/insert.h

src/util/readwritefile.h

src/node/peerman_args.cpp

src/node/interface_ui.cpp

src/interfaces/handler.h

src/node/mining_args.h

src/util/hasher.cpp

src/common/init.h

src/kernel/mempool_limits.h

src/common/system.h

src/crypto/sha3.h

src/util/threadinterrupt.cpp

src/node/protocol_version.h

src/util/exception.cpp

src/common/messages.h

src/node/connection_types.cpp

src/util/bip32.h

src/common/license_info.cpp

src/util/stdmutex.h

src/common/run_command.cpp

src/util/check.cpp

src/util/golombrice.h

src/node/types.h

src/node/timeoffsets.h

src/util/readwritefile.cpp

src/util/fastrange.h

src/util/signalinterrupt.h

src/util/task_runner.h

src/util/syserror.cpp

src/common/interfaces.cpp

src/common/types.h

src/util/threadinterrupt.h

src/kernel/chainstatemanager_opts.h

src/node/psbt.h

src/policy/ephemeral_policy.h

src/util/trace.h

src/common/url.cpp

src/kernel/mempool_options.h

src/util/serfloat.cpp

src/kernel/notifications_interface.h

src/node/timeoffsets.cpp

src/node/warnings.cpp

src/util/hash_type.h

src/crypto/hex_base.cpp

src/node/eviction.h

src/util/tokenbucket.h

src/crypto/aes.h

src/common/pcp.h

src/util/feefrac.cpp

src/node/transaction.h

src/util/threadnames.cpp

src/common/signmessage.h

src/util/exec.cpp

src/util/signalinterrupt.cpp

src/clientversion.cpp

src/common/signmessage.cpp

src/compat/assumptions.h

src/compat/byteswap.h

src/deploymentinfo.cpp

src/deploymentinfo.h

src/deploymentstatus.cpp

src/deploymentstatus.h

src/dummywallet.cpp

src/external_signer.h

src/init/bitcoin-gui.cpp

src/init/bitcoin-node.cpp

src/init/bitcoin-qt.cpp

src/init/bitcoin-wallet.cpp

src/init/bitcoind.cpp

src/init/common.h

src/interfaces/init.h

src/interfaces/ipc.h

src/key_io.h

src/logging/categories.h

src/logging/timer.h

src/mapport.h

src/musig.h

src/net_permissions.h

src/netgroup.h

src/netmessagemaker.h

src/node/chainstatemanager_args.cpp

src/node/connection_types.h

src/node/context.h

src/node/interface_ui.h

src/node/mempool_args.cpp

src/node/mining_args.cpp

src/node/minisketchwrapper.cpp

src/node/txreconciliation.h

src/policy/fees/estimator_args.cpp

src/policy/fees/estimator_args.h

src/policy/fees/estimator_man.cpp

src/policy/fees/estimator_man.h

src/policy/packages.h

src/policy/rbf.h

src/policy/truc_policy.h

src/pow.h

src/primitives/block.cpp

src/randomenv.h

src/rest.h

src/script/keyorigin.h

src/script/parsing.cpp

src/script/parsing.h

src/script/script_error.h

src/script/sigcache.cpp

src/script/sigcache.h

src/script/solver.h

src/script/verify_flags.h

src/semaphore_grant.h

src/signet.h

src/span.h

src/support/allocators/secure.h

src/support/allocators/zeroafterfree.h

src/util/tokenpipe.cpp

src/util/translation.h

src/util/vector.h

src/versionbits.h

src/versionbits_impl.h

src/wallet/external_signer_scriptpubkeyman.h

src/wallet/fees.h

src/wallet/load.h

src/wallet/receive.h

src/wallet/rpc/wallet.h

src/wallet/types.h

src/walletinitinterface.h

src/zmq/zmqabstractnotifier.cpp

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