bitcoin/src/test/fuzz/timedata.cpp
2020-12-10 07:15:42 +01:00

29 lines
1.2 KiB
C++

// 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 <test/fuzz/FuzzedDataProvider.h>
#include <test/fuzz/fuzz.h>
#include <test/fuzz/util.h>
#include <timedata.h>
#include <cstdint>
#include <string>
#include <vector>
FUZZ_TARGET(timedata)
{
FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
const unsigned int max_size = fuzzed_data_provider.ConsumeIntegralInRange<unsigned int>(0, 1000);
// Divide by 2 to avoid signed integer overflow in .median()
const int64_t initial_value = fuzzed_data_provider.ConsumeIntegral<int64_t>() / 2;
CMedianFilter<int64_t> median_filter{max_size, initial_value};
while (fuzzed_data_provider.remaining_bytes() > 0) {
(void)median_filter.median();
assert(median_filter.size() > 0);
assert(static_cast<size_t>(median_filter.size()) == median_filter.sorted().size());
assert(static_cast<unsigned int>(median_filter.size()) <= max_size || max_size == 0);
// Divide by 2 to avoid signed integer overflow in .median()
median_filter.input(fuzzed_data_provider.ConsumeIntegral<int64_t>() / 2);
}
}