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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 <bloom.h>
#include <test/fuzz/FuzzedDataProvider.h>
#include <test/fuzz/fuzz.h>
#include <test/fuzz/util.h>
#include <uint256.h>
#include <cassert>
#include <cstdint>
#include <optional>
#include <string>
#include <vector>
FUZZ_TARGET(rolling_bloom_filter)
{
FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
CRollingBloomFilter rolling_bloom_filter{
fuzzed_data_provider.ConsumeIntegralInRange<unsigned int>(1, 1000),
0.999 / fuzzed_data_provider.ConsumeIntegralInRange<unsigned int>(1, std::numeric_limits<unsigned int>::max())};
while (fuzzed_data_provider.remaining_bytes() > 0) {
CallOneOf(
fuzzed_data_provider,
[&] {
const std::vector<unsigned char> b = ConsumeRandomLengthByteVector(fuzzed_data_provider);
(void)rolling_bloom_filter.contains(b);
rolling_bloom_filter.insert(b);
const bool present = rolling_bloom_filter.contains(b);
assert(present);
},
[&] {
const std::optional<uint256> u256 = ConsumeDeserializable<uint256>(fuzzed_data_provider);
if (!u256) {
return;
}
(void)rolling_bloom_filter.contains(*u256);
rolling_bloom_filter.insert(*u256);
const bool present = rolling_bloom_filter.contains(*u256);
assert(present);
},
[&] {
rolling_bloom_filter.reset();
});
}
}
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