// Copyright (c) 2020-2021 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 <consensus/amount.h>

#include <policy/feerate.h>

#include <test/fuzz/FuzzedDataProvider.h>

#include <test/fuzz/fuzz.h>

#include <test/fuzz/util.h>

#include <cstdint>

#include <limits>

#include <string>

#include <vector>

FUZZ_TARGET(fee_rate)

{

    FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());

    const CAmount satoshis_per_k = ConsumeMoney(fuzzed_data_provider);

    const CFeeRate fee_rate{satoshis_per_k};

    (void)fee_rate.GetFeePerK();

    const auto bytes = fuzzed_data_provider.ConsumeIntegral<uint32_t>();

    if (!MultiplicationOverflow(int64_t{bytes}, satoshis_per_k)) {

        (void)fee_rate.GetFee(bytes);

    }

    (void)fee_rate.ToString();

    const CAmount another_satoshis_per_k = ConsumeMoney(fuzzed_data_provider);

    CFeeRate larger_fee_rate{another_satoshis_per_k};

    larger_fee_rate += fee_rate;

    if (satoshis_per_k != 0 && another_satoshis_per_k != 0) {

        assert(fee_rate < larger_fee_rate);

        assert(!(fee_rate > larger_fee_rate));

        assert(!(fee_rate == larger_fee_rate));

        assert(fee_rate <= larger_fee_rate);

        assert(!(fee_rate >= larger_fee_rate));

        assert(fee_rate != larger_fee_rate);

    }

}