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// 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 <cuckoocache.h>
#include <script/sigcache.h>
#include <test/fuzz/FuzzedDataProvider.h>
#include <test/fuzz/fuzz.h>
#include <test/fuzz/util.h>
#include <test/util/setup_common.h>
#include <cstdint>
#include <string>
#include <vector>
namespace {
FuzzedDataProvider* fuzzed_data_provider_ptr = nullptr;
struct RandomHasher {
template <uint8_t>
uint32_t operator()(const bool& /* unused */) const
{
assert(fuzzed_data_provider_ptr != nullptr);
return fuzzed_data_provider_ptr->ConsumeIntegral<uint32_t>();
}
};
} // namespace
FUZZ_TARGET(cuckoocache)
{
FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
fuzzed_data_provider_ptr = &fuzzed_data_provider;
CuckooCache::cache<int, RandomHasher> cuckoo_cache{};
if (fuzzed_data_provider.ConsumeBool()) {
const size_t megabytes = fuzzed_data_provider.ConsumeIntegralInRange<size_t>(0, 16);
cuckoo_cache.setup_bytes(megabytes << 20);
} else {
cuckoo_cache.setup(fuzzed_data_provider.ConsumeIntegralInRange<uint32_t>(0, 4096));
}
LIMITED_WHILE(fuzzed_data_provider.ConsumeBool(), 10000) {
if (fuzzed_data_provider.ConsumeBool()) {
cuckoo_cache.insert(fuzzed_data_provider.ConsumeBool());
} else {
auto e = fuzzed_data_provider.ConsumeBool();
auto erase = fuzzed_data_provider.ConsumeBool();
cuckoo_cache.contains(e, erase);
}
}
fuzzed_data_provider_ptr = nullptr;
}
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