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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.

bitcoin / bitcoinstable

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▤ coinselection_tests.cpp

▤ coinselector_tests.cpp

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▤ init_test_fixture.h

▤ init_tests.cpp

▤ ismine_tests.cpp

▤ psbt_wallet_tests.cpp

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▤ util.h

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▤ wallet_rpc_tests.cpp

▤ wallet_test_fixture.cpp

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▤ wallet_tests.cpp

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▤ walletdb_tests.cpp

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▤ CMakeLists.txt

▤ coincontrol.cppGuide

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bitcoin / src / wallet / test / coinselector_tests.cpp

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1251                add_coin(available_coins, wallet, CAmount(50 * COIN), CFeeRate(0), 144, false, 0, true);
1252                return available_coins;
1253            },
1254            m_node);
1255
1256        BOOST_CHECK(result);
1257        // Verify that the 50 BTC UTXO was selected, and result is below max_weight
1258        BOOST_CHECK(has_coin(result->GetInputSet(), CAmount(50 * COIN)));
1259        BOOST_CHECK_LE(result->GetWeight(), max_weight);
1260    }
1261
1262    {
1263        // Scenario 2:
1264
1265        // The actor starts with 400x 0.0625 BTC and 2000x 0.025 BTC (75.0 BTC total) unspent outputs
1266        // Then tries to spend 49.5 BTC
1267        // A combination of coins should be selected, such that the created transaction is not too large
1268
1269        // Perform selection
1270        const auto result = select_coins(
1271            target, cs_params, cc, [&](CWallet& wallet) {
1272                CoinsResult available_coins;
1273                for (int j = 0; j < 400; ++j) {
1274                    add_coin(available_coins, wallet, CAmount(0.0625 * COIN), CFeeRate(0), 144, false, 0, true);
1275                }
1276                for (int j = 0; j < 2000; ++j) {
1277                    add_coin(available_coins, wallet, CAmount(0.025 * COIN), CFeeRate(0), 144, false, 0, true);
1278                }
1279                return available_coins;
1280            },
1281            m_node);
1282
1283        BOOST_CHECK(has_coin(result->GetInputSet(), CAmount(0.0625 * COIN)));
1284        BOOST_CHECK(has_coin(result->GetInputSet(), CAmount(0.025 * COIN)));
1285        BOOST_CHECK_LE(result->GetWeight(), max_weight);
1286    }
1287
1288    {
1289        // Scenario 3:
1290
1291        // The actor starts with 1515x 0.033 BTC (49.995 BTC total) unspent outputs
1292        // No results should be returned, because the transaction would be too large
1293
1294        // Perform selection
1295        const auto result = select_coins(
1296            target, cs_params, cc, [&](CWallet& wallet) {
1297                CoinsResult available_coins;
1298                for (int j = 0; j < 1515; ++j) {
1299                    add_coin(available_coins, wallet, CAmount(0.033 * COIN), CFeeRate(0), 144, false, 0, true);
1300                }
1301                return available_coins;
1302            },
1303            m_node);
1304
1305        // No results
1306        // 1515 inputs * 68 bytes = 103,020 bytes
1307        // 103,020 bytes * 4 = 412,080 weight, which is above the MAX_STANDARD_TX_WEIGHT of 400,000
1308        BOOST_CHECK(!result);
1309    }
1310}
1311
1312BOOST_AUTO_TEST_CASE(SelectCoins_effective_value_test)
1313{
1314    // Test that the effective value is used to check whether preset inputs provide sufficient funds when subtract_fee_outputs is not used.
1315    // This test creates a coin whose value is higher than the target but whose effective value is lower than the target.
1316    // The coin is selected using coin control, with m_allow_other_inputs = false. SelectCoins should fail due to insufficient funds.
1317
1318    std::unique_ptr<CWallet> wallet = NewWallet(m_node);
1319
1320    CoinsResult available_coins;
1321    {
1322        std::unique_ptr<CWallet> dummyWallet = NewWallet(m_node, /*wallet_name=*/"dummy");
1323        add_coin(available_coins, *dummyWallet, 100000); // 0.001 BTC
1324    }
1325
1326    CAmount target{99900}; // 0.000999 BTC
1327
1328    FastRandomContext rand;
1329    CoinSelectionParams cs_params{
1330        rand,
1331        /*change_output_size=*/34,
1332        /*change_spend_size=*/148,
1333        /*min_change_target=*/1000,
1334        /*effective_feerate=*/CFeeRate(3000),
1335        /*long_term_feerate=*/CFeeRate(1000),
1336        /*discard_feerate=*/CFeeRate(1000),
1337        /*tx_noinputs_size=*/0,
1338        /*avoid_partial=*/false,
1339    };
1340    CCoinControl cc;
1341    cc.m_allow_other_inputs = false;
1342    COutput output = available_coins.All().at(0);
1343    cc.SetInputWeight(output.outpoint, 148);
1344    cc.Select(output.outpoint).SetTxOut(output.txout);
1345
1346    LOCK(wallet->cs_wallet);
1347    const auto preset_inputs = *Assert(FetchSelectedInputs(*wallet, cc, cs_params));
1348    available_coins.Erase({available_coins.coins[OutputType::BECH32].begin()->outpoint});
1349
1350    const auto result = SelectCoins(*wallet, available_coins, preset_inputs, target, cc, cs_params);
1351    BOOST_CHECK(!result);
1352}
1353
1354BOOST_FIXTURE_TEST_CASE(wallet_coinsresult_test, BasicTestingSetup)
1355{
1356    // Test case to verify CoinsResult object sanity.
1357    CoinsResult available_coins;
1358    {
1359        std::unique_ptr<CWallet> dummyWallet = NewWallet(m_node, /*wallet_name=*/"dummy");
1360
1361        // Add some coins to 'available_coins'
1362        for (int i=0; i<10; i++) {
1363            add_coin(available_coins, *dummyWallet, 1 * COIN);
1364        }
1365    }
1366
1367    {
1368        // First test case, check that 'CoinsResult::Erase' function works as expected.
1369        // By trying to erase two elements from the 'available_coins' object.
1370        std::unordered_set<COutPoint, SaltedOutpointHasher> outs_to_remove;
1371        const auto& coins = available_coins.All();
1372        for (int i = 0; i < 2; i++) {
1373            outs_to_remove.emplace(coins[i].outpoint);
1374        }
1375        available_coins.Erase(outs_to_remove);
1376
1377        // Check that the elements were actually removed.
1378        const auto& updated_coins = available_coins.All();
1379        for (const auto& out: outs_to_remove) {
1380            auto it = std::find_if(updated_coins.begin(), updated_coins.end(), [&out](const COutput &coin) {
1381                return coin.outpoint == out;
1382            });
1383            BOOST_CHECK(it == updated_coins.end());
1384        }
1385        // And verify that no extra element were removed
1386        BOOST_CHECK_EQUAL(available_coins.Size(), 8);
1387    }
1388}
1389
1390BOOST_AUTO_TEST_SUITE_END()
1391} // namespace wallet
1392

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cmake/bitcoin-build-config.h.in src/consensus/amount.h src/consensus/consensus.h src/primitives/block.h src/primitives/transaction.h src/crypto/sha256.h src/util/moneystr.h src/clientversion.h src/uint256.h src/script/script.h src/policy/policy.h CMakeLists.txt README.md COPYING src/consensus/tx_check.cpp src/consensus/tx_verify.cpp src/consensus/merkle.cpp src/pow.cpp src/validation.cpp src/script/interpreter.cpp src/script/solver.cpp src/script/sign.cpp src/key_io.cpp src/net.cpp src/net_processing.cpp src/netaddress.cpp src/protocol.h src/wallet/wallet.cpp src/wallet/spend.cpp

← Previous 250 linesCode page 6

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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