Line data    Source code

       1             : // Copyright (c) 2020-2021 The Bitcoin Core developers
       2             : // Distributed under the MIT software license, see the accompanying
       3             : // file COPYING or http://www.opensource.org/licenses/mit-license.php.
       4             : 
       5             : #include <common/bloom.h>
       6             : #include <test/fuzz/FuzzedDataProvider.h>
       7             : #include <test/fuzz/fuzz.h>
       8             : #include <test/fuzz/util.h>
       9             : #include <uint256.h>
      10             : 
      11             : #include <cassert>
      12             : #include <cstdint>
      13             : #include <optional>
      14             : #include <string>
      15             : #include <vector>
      16             : 
      17           4 : FUZZ_TARGET(rolling_bloom_filter)
      18             : {
      19           0 :     FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
      20             : 
      21           0 :     CRollingBloomFilter rolling_bloom_filter{
      22           0 :         fuzzed_data_provider.ConsumeIntegralInRange<unsigned int>(1, 1000),
      23           0 :         0.999 / fuzzed_data_provider.ConsumeIntegralInRange<unsigned int>(1, std::numeric_limits<unsigned int>::max())};
      24           0 :     LIMITED_WHILE(fuzzed_data_provider.remaining_bytes() > 0, 3000)
      25           2 :     {
      26           0 :         CallOneOf(
      27             :             fuzzed_data_provider,
      28           0 :             [&] {
      29           0 :                 const std::vector<unsigned char> b = ConsumeRandomLengthByteVector(fuzzed_data_provider);
      30           0 :                 (void)rolling_bloom_filter.contains(b);
      31           0 :                 rolling_bloom_filter.insert(b);
      32           0 :                 const bool present = rolling_bloom_filter.contains(b);
      33           0 :                 assert(present);
      34           0 :             },
      35           0 :             [&] {
      36           0 :                 const uint256 u256{ConsumeUInt256(fuzzed_data_provider)};
      37           0 :                 (void)rolling_bloom_filter.contains(u256);
      38           0 :                 rolling_bloom_filter.insert(u256);
      39           0 :                 const bool present = rolling_bloom_filter.contains(u256);
      40           0 :                 assert(present);
      41           0 :             },
      42           0 :             [&] {
      43           0 :                 rolling_bloom_filter.reset();
      44           0 :             });
      45           0 :     }
      46           0 : }