LCOV - code coverage report
Current view: top level - src/test/fuzz - cuckoocache.cpp (source / functions) Hit Total Coverage
Test: fuzz_coverage.info Lines: 4 25 16.0 %
Date: 2023-11-06 23:13:05 Functions: 1 14 7.1 %
Branches: 4 56 7.1 %

           Branch data     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 <cuckoocache.h>
       6                 :            : #include <script/sigcache.h>
       7                 :            : #include <test/fuzz/FuzzedDataProvider.h>
       8                 :            : #include <test/fuzz/fuzz.h>
       9                 :            : #include <test/fuzz/util.h>
      10                 :            : #include <test/util/setup_common.h>
      11                 :            : 
      12                 :            : #include <cstdint>
      13                 :            : #include <string>
      14                 :            : #include <vector>
      15                 :            : 
      16                 :            : namespace {
      17         [ +  - ]:          2 : FuzzedDataProvider* fuzzed_data_provider_ptr = nullptr;
      18         [ +  - ]:          2 : 
      19                 :            : struct RandomHasher {
      20                 :            :     template <uint8_t>
      21                 :          0 :     uint32_t operator()(const bool& /* unused */) const
      22                 :            :     {
      23 [ #  # ][ #  # ]:          0 :         assert(fuzzed_data_provider_ptr != nullptr);
         [ #  # ][ #  # ]
         [ #  # ][ #  # ]
         [ #  # ][ #  # ]
      24                 :          0 :         return fuzzed_data_provider_ptr->ConsumeIntegral<uint32_t>();
      25                 :          2 :     }
      26                 :            : };
      27                 :            : } // namespace
      28                 :            : 
      29 [ +  - ][ +  - ]:          6 : FUZZ_TARGET(cuckoocache)
      30                 :            : {
      31                 :          0 :     FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
      32                 :          0 :     fuzzed_data_provider_ptr = &fuzzed_data_provider;
      33                 :          0 :     CuckooCache::cache<int, RandomHasher> cuckoo_cache{};
      34 [ #  # ][ #  # ]:          0 :     if (fuzzed_data_provider.ConsumeBool()) {
      35         [ #  # ]:          0 :         const size_t megabytes = fuzzed_data_provider.ConsumeIntegralInRange<size_t>(0, 16);
      36         [ #  # ]:          0 :         cuckoo_cache.setup_bytes(megabytes << 20);
      37                 :          0 :     } else {
      38 [ #  # ][ #  # ]:          0 :         cuckoo_cache.setup(fuzzed_data_provider.ConsumeIntegralInRange<uint32_t>(0, 4096));
      39                 :            :     }
      40 [ #  # ][ #  # ]:          0 :     LIMITED_WHILE(fuzzed_data_provider.ConsumeBool(), 10000) {
                 [ #  # ]
      41 [ #  # ][ #  # ]:          0 :         if (fuzzed_data_provider.ConsumeBool()) {
      42 [ #  # ][ #  # ]:          0 :             cuckoo_cache.insert(fuzzed_data_provider.ConsumeBool());
      43                 :          0 :         } else {
      44 [ #  # ][ #  # ]:          0 :             cuckoo_cache.contains(fuzzed_data_provider.ConsumeBool(), fuzzed_data_provider.ConsumeBool());
                 [ #  # ]
      45                 :            :         }
      46                 :          0 :     }
      47                 :          0 :     fuzzed_data_provider_ptr = nullptr;
      48                 :          0 : }

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