bitcoin/src/test/fuzz/primitives_transaction.cpp

// Copyright (c) 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.

#include <primitives/transaction.h>
#include <test/fuzz/FuzzedDataProvider.h>
#include <test/fuzz/fuzz.h>
#include <test/fuzz/util.h>

#include <cstdint>
#include <optional>
#include <string>
#include <vector>

FUZZ_TARGET(primitives_transaction)
{
    FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
    const CScript script = ConsumeScript(fuzzed_data_provider);
    const std::optional<COutPoint> out_point = ConsumeDeserializable<COutPoint>(fuzzed_data_provider);
    if (out_point) {
        const CTxIn tx_in{*out_point, script, fuzzed_data_provider.ConsumeIntegral<uint32_t>()};
        (void)tx_in;
    }
    const CTxOut tx_out_1{ConsumeMoney(fuzzed_data_provider), script};
    const CTxOut tx_out_2{ConsumeMoney(fuzzed_data_provider), ConsumeScript(fuzzed_data_provider)};
    assert((tx_out_1 == tx_out_2) != (tx_out_1 != tx_out_2));
    const std::optional<CMutableTransaction> mutable_tx_1 = ConsumeDeserializable<CMutableTransaction>(fuzzed_data_provider);
    const std::optional<CMutableTransaction> mutable_tx_2 = ConsumeDeserializable<CMutableTransaction>(fuzzed_data_provider);
    if (mutable_tx_1 && mutable_tx_2) {
        const CTransaction tx_1{*mutable_tx_1};
        const CTransaction tx_2{*mutable_tx_2};
        assert((tx_1 == tx_2) != (tx_1 != tx_2));
    }
}