rolling_bloom_filter.cpp raw

   1  // Copyright (c) 2020-present 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 <test/util/random.h>
  10  #include <uint256.h>
  11  
  12  #include <cassert>
  13  #include <cstdint>
  14  #include <optional>
  15  #include <string>
  16  #include <vector>
  17  
  18  FUZZ_TARGET(rolling_bloom_filter)
  19  {
  20      SeedRandomStateForTest(SeedRand::ZEROS);
  21      FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
  22  
  23      CRollingBloomFilter rolling_bloom_filter{
  24          fuzzed_data_provider.ConsumeIntegralInRange<unsigned int>(1, 1000),
  25          0.999 / fuzzed_data_provider.ConsumeIntegralInRange<unsigned int>(1, std::numeric_limits<unsigned int>::max())};
  26      LIMITED_WHILE(fuzzed_data_provider.remaining_bytes() > 0, 3000)
  27      {
  28          CallOneOf(
  29              fuzzed_data_provider,
  30              [&] {
  31                  const std::vector<unsigned char> b = ConsumeRandomLengthByteVector(fuzzed_data_provider);
  32                  (void)rolling_bloom_filter.contains(b);
  33                  rolling_bloom_filter.insert(b);
  34                  const bool present = rolling_bloom_filter.contains(b);
  35                  assert(present);
  36              },
  37              [&] {
  38                  const uint256 u256{ConsumeUInt256(fuzzed_data_provider)};
  39                  (void)rolling_bloom_filter.contains(u256);
  40                  rolling_bloom_filter.insert(u256);
  41                  const bool present = rolling_bloom_filter.contains(u256);
  42                  assert(present);
  43              },
  44              [&] {
  45                  rolling_bloom_filter.reset();
  46              });
  47      }
  48  }
  49