// Copyright (c) 2019-2020 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 <core_io.h>

#include <primitives/transaction.h>

#include <test/fuzz/fuzz.h>

#include <util/strencodings.h>

#include <cassert>

#include <cstdint>

#include <string>

#include <vector>

FUZZ_TARGET(decode_tx)

{

    const std::string tx_hex = HexStr(buffer);

    CMutableTransaction mtx;

    const bool result_none = DecodeHexTx(mtx, tx_hex, false, false);

    const bool result_try_witness = DecodeHexTx(mtx, tx_hex, false, true);

    const bool result_try_witness_and_maybe_no_witness = DecodeHexTx(mtx, tx_hex, true, true);

    CMutableTransaction no_witness_mtx;

    const bool result_try_no_witness = DecodeHexTx(no_witness_mtx, tx_hex, true, false);

    assert(!result_none);

    if (result_try_witness_and_maybe_no_witness) {

        assert(result_try_no_witness || result_try_witness);

    }

    if (result_try_no_witness) {

        assert(!no_witness_mtx.HasWitness());

        assert(result_try_witness_and_maybe_no_witness);

    }

}