LCOV - code coverage report
Current view: top level - src/test/fuzz - script_descriptor_cache.cpp (source / functions) Coverage Total Hit
Test: fuzz_coverage.info Lines: 100.0 % 24 24
Test Date: 2026-09-29 05:40:13 Functions: 100.0 % 2 2
Branches: 60.5 % 38 23

             Branch data     Line data    Source code
       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 <pubkey.h>
       6                 :             : #include <script/descriptor.h>
       7                 :             : #include <streams.h>
       8                 :             : #include <test/fuzz/FuzzedDataProvider.h>
       9                 :             : #include <test/fuzz/fuzz.h>
      10                 :             : #include <test/fuzz/util.h>
      11                 :             : 
      12                 :             : #include <cstdint>
      13                 :             : #include <optional>
      14                 :             : #include <string>
      15                 :             : #include <vector>
      16                 :             : 
      17         [ +  - ]:         599 : FUZZ_TARGET(script_descriptor_cache)
      18                 :             : {
      19                 :         123 :     FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
      20                 :         123 :     DescriptorCache descriptor_cache;
      21   [ +  +  +  + ]:       50650 :     LIMITED_WHILE (fuzzed_data_provider.ConsumeBool(), 10000) {
      22         [ +  - ]:       50527 :         const std::vector<uint8_t> code = fuzzed_data_provider.ConsumeBytes<uint8_t>(BIP32_EXTKEY_SIZE);
      23   [ -  +  +  + ]:       50527 :         if (code.size() == BIP32_EXTKEY_SIZE) {
      24                 :       50481 :             CExtPubKey xpub;
      25         [ +  - ]:       50481 :             SpanReader{code} >> xpub;
      26                 :       50481 :             const uint32_t key_exp_pos = fuzzed_data_provider.ConsumeIntegral<uint32_t>();
      27                 :       50481 :             CExtPubKey xpub_fetched;
      28         [ +  + ]:       50481 :             if (fuzzed_data_provider.ConsumeBool()) {
      29         [ +  - ]:       46076 :                 (void)descriptor_cache.GetCachedParentExtPubKey(key_exp_pos, xpub_fetched);
      30         [ +  - ]:       46076 :                 descriptor_cache.CacheParentExtPubKey(key_exp_pos, xpub);
      31   [ +  -  -  + ]:       46076 :                 assert(descriptor_cache.GetCachedParentExtPubKey(key_exp_pos, xpub_fetched));
      32                 :             :             } else {
      33                 :        4405 :                 const uint32_t der_index = fuzzed_data_provider.ConsumeIntegral<uint32_t>();
      34         [ +  - ]:        4405 :                 (void)descriptor_cache.GetCachedDerivedExtPubKey(key_exp_pos, der_index, xpub_fetched);
      35         [ +  - ]:        4405 :                 descriptor_cache.CacheDerivedExtPubKey(key_exp_pos, der_index, xpub);
      36   [ +  -  -  + ]:        4405 :                 assert(descriptor_cache.GetCachedDerivedExtPubKey(key_exp_pos, der_index, xpub_fetched));
      37                 :             :             }
      38         [ -  + ]:       50481 :             assert(xpub == xpub_fetched);
      39                 :       50481 :         }
      40         [ +  - ]:       50527 :         (void)descriptor_cache.GetCachedParentExtPubKeys();
      41         [ +  - ]:      101054 :         (void)descriptor_cache.GetCachedDerivedExtPubKeys();
      42                 :       50527 :     }
      43                 :         123 : }
        

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