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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) 2021-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"""Test generation and spending of P2TR addresses."""
6
7import random
8import uuid
9
10from decimal import Decimal
11from test_framework.address import output_key_to_p2tr
12from test_framework.key import H_POINT, compute_xonly_pubkey
13from test_framework.test_framework import BitcoinTestFramework
14from test_framework.util import assert_equal
15from test_framework.descriptors import descsum_create
16from test_framework.extendedkey import ExtendedPrivateKey
17from test_framework.script import (
18    CScript,
19    MAX_PUBKEYS_PER_MULTI_A,
20    OP_CHECKSIG,
21    OP_CHECKSIGADD,
22    OP_NUMEQUAL,
23    taproot_construct,
24)
25from test_framework.segwit_addr import encode_segwit_address
26
27def key(hex_key):
28    """Construct an x-only pubkey from its hex representation."""
29    return bytes.fromhex(hex_key)
30
31def pk(hex_key):
32    """Construct a script expression for taproot_construct for pk(hex_key)."""
33    return (None, CScript([bytes.fromhex(hex_key), OP_CHECKSIG]))
34
35def multi_a(k, hex_keys, sort=False):
36    """Construct a script expression for taproot_construct for a multi_a script."""
37    xkeys = [bytes.fromhex(hex_key) for hex_key in hex_keys]
38    if sort:
39        xkeys.sort()
40    ops = [xkeys[0], OP_CHECKSIG]
41    for i in range(1, len(hex_keys)):
42        ops += [xkeys[i], OP_CHECKSIGADD]
43    ops += [k, OP_NUMEQUAL]
44    return (None, CScript(ops))
45
46def compute_taproot_address(pubkey, scripts):
47    """Compute the address for a taproot output with given inner key and scripts."""
48    return output_key_to_p2tr(taproot_construct(pubkey, scripts).output_pubkey)
49
50def compute_raw_taproot_address(pubkey):
51    return encode_segwit_address("bcrt", 1, pubkey)
52
53class WalletTaprootTest(BitcoinTestFramework):
54    """Test generation and spending of P2TR address outputs."""
55
56    def set_test_params(self):
57        self.num_nodes = 2
58        self.setup_clean_chain = True
59        self.extra_args = [['-keypool=100'], ['-keypool=100']]
60
61    def skip_test_if_missing_module(self):
62        self.skip_if_no_wallet()
63
64    def setup_network(self):
65        self.setup_nodes()
66
67    def init_wallet(self, *, node):
68        pass
69
70    @staticmethod
71    def make_desc(pattern, privmap, keys, pub_only = False):
72        pat = pattern.replace("$H", H_POINT)
73        for i in range(len(privmap)):
74            if privmap[i] and not pub_only:
75                pat = pat.replace("$%i" % (i + 1), keys[i]['xprv'])
76            else:
77                pat = pat.replace("$%i" % (i + 1), keys[i]['xpub'])
78        return descsum_create(pat)
79
80    @staticmethod
81    def make_addr(treefn, keys, i):
82        args = []
83        for j in range(len(keys)):
84            args.append(keys[j]['pubs'][i])
85        tree = treefn(*args)
86        if isinstance(tree, tuple):
87            return compute_taproot_address(*tree)
88        if isinstance(tree, bytes):
89            return compute_raw_taproot_address(tree)
90        assert False
91
92    def do_test_addr(self, comment, pattern, privmap, treefn, keys):
93        self.log.info("Testing %s address derivation" % comment)
94
95        # Create wallets
96        wallet_uuid = uuid.uuid4().hex
97        self.nodes[0].createwallet(wallet_name=f"privs_tr_enabled_{wallet_uuid}", blank=True)
98        self.nodes[0].createwallet(wallet_name=f"pubs_tr_enabled_{wallet_uuid}", blank=True, disable_private_keys=True)
99        self.nodes[0].createwallet(wallet_name=f"addr_gen_{wallet_uuid}", disable_private_keys=True, blank=True)
100        privs_tr_enabled = self.nodes[0].get_wallet_rpc(f"privs_tr_enabled_{wallet_uuid}")
101        pubs_tr_enabled = self.nodes[0].get_wallet_rpc(f"pubs_tr_enabled_{wallet_uuid}")
102        addr_gen = self.nodes[0].get_wallet_rpc(f"addr_gen_{wallet_uuid}")
103
104        desc = self.make_desc(pattern, privmap, keys, False)
105        desc_pub = self.make_desc(pattern, privmap, keys, True)
106        assert_equal(self.nodes[0].getdescriptorinfo(desc)['descriptor'], desc_pub)
107        result = addr_gen.importdescriptors([{"desc": desc_pub, "active": True, "timestamp": "now"}])
108        assert result[0]['success']
109        address_type = "bech32m" if "tr" in pattern else "bech32"
110        for i in range(4):
111            addr_g = addr_gen.getnewaddress(address_type=address_type)
112            if treefn is not None:
113                addr_r = self.make_addr(treefn, keys, i)
114                assert_equal(addr_g, addr_r)
115            desc_a = addr_gen.getaddressinfo(addr_g)['desc']
116            if desc.startswith("tr("):
117                assert desc_a.startswith("tr(")
118            rederive = self.nodes[1].deriveaddresses(desc_a)
119            assert_equal(len(rederive), 1)
120            assert_equal(rederive[0], addr_g)
121
122        # tr descriptors can be imported
123        result = privs_tr_enabled.importdescriptors([{"desc": desc, "timestamp": "now"}])
124        assert result[0]['success']
125        result = pubs_tr_enabled.importdescriptors([{"desc": desc_pub, "timestamp": "now"}])
126        assert result[0]["success"]
127
128        # Cleanup
129        privs_tr_enabled.unloadwallet()
130        pubs_tr_enabled.unloadwallet()
131        addr_gen.unloadwallet()
132
133    def do_test_sendtoaddress(self, comment, pattern, privmap, treefn, keys_pay, keys_change):
134        self.log.info("Testing %s through sendtoaddress" % comment)
135
136        # Create wallets
137        wallet_uuid = uuid.uuid4().hex
138        self.nodes[0].createwallet(wallet_name=f"rpc_online_{wallet_uuid}", blank=True)
139        rpc_online = self.nodes[0].get_wallet_rpc(f"rpc_online_{wallet_uuid}")
140
141        desc_pay = self.make_desc(pattern, privmap, keys_pay)
142        desc_change = self.make_desc(pattern, privmap, keys_change)
143        desc_pay_pub = self.make_desc(pattern, privmap, keys_pay, True)
144        desc_change_pub = self.make_desc(pattern, privmap, keys_change, True)
145        assert_equal(self.nodes[0].getdescriptorinfo(desc_pay)['descriptor'], desc_pay_pub)
146        assert_equal(self.nodes[0].getdescriptorinfo(desc_change)['descriptor'], desc_change_pub)
147        result = rpc_online.importdescriptors([{"desc": desc_pay, "active": True, "timestamp": "now"}])
148        assert result[0]['success']
149        result = rpc_online.importdescriptors([{"desc": desc_change, "active": True, "timestamp": "now", "internal": True}])
150        assert result[0]['success']
151        address_type = "bech32m" if "tr" in pattern else "bech32"
152        for i in range(4):
153            addr_g = rpc_online.getnewaddress(address_type=address_type)
154            if treefn is not None:
155                addr_r = self.make_addr(treefn, keys_pay, i)
156                assert_equal(addr_g, addr_r)
157            boring_balance = int(self.boring.getbalance() * 100000000)
158            to_amnt = random.randrange(1000000, boring_balance)
159            self.boring.sendtoaddress(address=addr_g, amount=Decimal(to_amnt) / 100000000, subtractfeefromamount=True)
160            self.generatetoaddress(self.nodes[0], 1, self.boring.getnewaddress(), sync_fun=self.no_op)
161            test_balance = int(rpc_online.getbalance() * 100000000)
162            ret_amnt = random.randrange(100000, test_balance)
163            # Increase fee_rate to compensate for the wallet's inability to estimate fees for script path spends.
164            res = rpc_online.sendtoaddress(address=self.boring.getnewaddress(), amount=Decimal(ret_amnt) / 100000000, subtractfeefromamount=True, fee_rate=200)
165            self.generatetoaddress(self.nodes[0], 1, self.boring.getnewaddress(), sync_fun=self.no_op)
166            assert rpc_online.gettransaction(res)["confirmations"] > 0
167
168        # Match the framework fallbackfee; otherwise the underestimated taproot
169        # script-path spend size can produce an effective feerate below min relay.
170        txid = rpc_online.sendall(recipients=[self.boring.getnewaddress()], fee_rate=20)["txid"]
171        self.generatetoaddress(self.nodes[0], 1, self.boring.getnewaddress(), sync_fun=self.no_op)
172        assert rpc_online.gettransaction(txid)["confirmations"] > 0
173        rpc_online.unloadwallet()
174
175    def do_test_psbt(self, comment, pattern, privmap, treefn, keys_pay, keys_change):
176        self.log.info("Testing %s through PSBT" % comment)
177
178        # Create wallets
179        wallet_uuid = uuid.uuid4().hex
180        self.nodes[0].createwallet(wallet_name=f"psbt_online_{wallet_uuid}", disable_private_keys=True, blank=True)
181        self.nodes[1].createwallet(wallet_name=f"psbt_offline_{wallet_uuid}", blank=True)
182        self.nodes[1].createwallet(f"key_only_wallet_{wallet_uuid}", blank=True)
183        psbt_online = self.nodes[0].get_wallet_rpc(f"psbt_online_{wallet_uuid}")
184        psbt_offline = self.nodes[1].get_wallet_rpc(f"psbt_offline_{wallet_uuid}")
185        key_only_wallet = self.nodes[1].get_wallet_rpc(f"key_only_wallet_{wallet_uuid}")
186
187        desc_pay = self.make_desc(pattern, privmap, keys_pay, False)
188        desc_change = self.make_desc(pattern, privmap, keys_change, False)
189        desc_pay_pub = self.make_desc(pattern, privmap, keys_pay, True)
190        desc_change_pub = self.make_desc(pattern, privmap, keys_change, True)
191        assert_equal(self.nodes[0].getdescriptorinfo(desc_pay)['descriptor'], desc_pay_pub)
192        assert_equal(self.nodes[0].getdescriptorinfo(desc_change)['descriptor'], desc_change_pub)
193        result = psbt_online.importdescriptors([{"desc": desc_pay_pub, "active": True, "timestamp": "now"}])
194        assert result[0]['success']
195        result = psbt_online.importdescriptors([{"desc": desc_change_pub, "active": True, "timestamp": "now", "internal": True}])
196        assert result[0]['success']
197        result = psbt_offline.importdescriptors([{"desc": desc_pay, "active": True, "timestamp": "now"}])
198        assert result[0]['success']
199        result = psbt_offline.importdescriptors([{"desc": desc_change, "active": True, "timestamp": "now", "internal": True}])
200        assert result[0]['success']
201        for key in keys_pay + keys_change:
202            result = key_only_wallet.importdescriptors([{"desc": descsum_create(f"wpkh({key['xprv']}/*)"), "timestamp":"now"}])
203            assert result[0]["success"]
204        address_type = "bech32m" if "tr" in pattern else "bech32"
205        for i in range(4):
206            addr_g = psbt_online.getnewaddress(address_type=address_type)
207            if treefn is not None:
208                addr_r = self.make_addr(treefn, keys_pay, i)
209                assert_equal(addr_g, addr_r)
210            boring_balance = int(self.boring.getbalance() * 100000000)
211            to_amnt = random.randrange(1000000, boring_balance)
212            self.boring.sendtoaddress(address=addr_g, amount=Decimal(to_amnt) / 100000000, subtractfeefromamount=True)
213            self.generatetoaddress(self.nodes[0], 1, self.boring.getnewaddress(), sync_fun=self.no_op)
214            test_balance = int(psbt_online.getbalance() * 100000000)
215            ret_amnt = random.randrange(100000, test_balance)
216            # Increase fee_rate to compensate for the wallet's inability to estimate fees for script path spends.
217            psbt = psbt_online.walletcreatefundedpsbt([], [{self.boring.getnewaddress(): Decimal(ret_amnt) / 100000000}], None, {"subtractFeeFromOutputs":[0], "fee_rate": 200, "change_type": address_type})['psbt']
218            res = psbt_offline.walletprocesspsbt(psbt=psbt, finalize=False)
219            for wallet in [psbt_offline, key_only_wallet]:
220                res = wallet.walletprocesspsbt(psbt=psbt, finalize=False)
221
222                decoded = wallet.decodepsbt(res["psbt"])
223                if pattern.startswith("tr("):
224                    for psbtin in decoded["inputs"]:
225                        assert "non_witness_utxo" not in psbtin
226                        assert "witness_utxo" in psbtin
227                        assert "taproot_internal_key" in psbtin
228                        assert "taproot_bip32_derivs" in psbtin
229                        assert "taproot_key_path_sig" in psbtin or "taproot_script_path_sigs" in psbtin
230                        if "taproot_script_path_sigs" in psbtin:
231                            assert "taproot_merkle_root" in psbtin
232                            assert "taproot_scripts" in psbtin
233
234                rawtx = self.nodes[0].finalizepsbt(res['psbt'])['hex']
235                res = self.nodes[0].testmempoolaccept([rawtx])
236                assert res[0]["allowed"]
237
238            txid = self.nodes[0].sendrawtransaction(rawtx)
239            self.generatetoaddress(self.nodes[0], 1, self.boring.getnewaddress(), sync_fun=self.no_op)
240            assert psbt_online.gettransaction(txid)['confirmations'] > 0
241
242        # Match the framework fallbackfee; otherwise the underestimated taproot
243        # script-path spend size can produce an effective feerate below min relay.
244        psbt = psbt_online.sendall(recipients=[self.boring.getnewaddress()], psbt=True, fee_rate=20)["psbt"]
245        res = psbt_offline.walletprocesspsbt(psbt=psbt, finalize=False)
246        rawtx = self.nodes[0].finalizepsbt(res['psbt'])['hex']
247        txid = self.nodes[0].sendrawtransaction(rawtx)
248        self.generatetoaddress(self.nodes[0], 1, self.boring.getnewaddress(), sync_fun=self.no_op)
249        assert psbt_online.gettransaction(txid)['confirmations'] > 0
250        psbt_online.unloadwallet()

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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