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author | practicalswift <practicalswift@users.noreply.github.com> | 2020-11-11 22:21:13 +0000 |
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committer | practicalswift <practicalswift@users.noreply.github.com> | 2020-11-11 22:31:40 +0000 |
commit | 3c77b8009de9457c356c0bf4362d11bb99a17bb7 (patch) | |
tree | ea0fab53b3f4aa162f41f128e991414a79f46f7b /src/test/fuzz/merkleblock.cpp | |
parent | d9f5132736f34f31f6e7d009015f917c9dcfec00 (diff) | |
download | bitcoin-3c77b8009de9457c356c0bf4362d11bb99a17bb7.tar.xz |
fuzz: Improve coverage for CPartialMerkleTree fuzzing harness
Diffstat (limited to 'src/test/fuzz/merkleblock.cpp')
-rw-r--r-- | src/test/fuzz/merkleblock.cpp | 34 |
1 files changed, 29 insertions, 5 deletions
diff --git a/src/test/fuzz/merkleblock.cpp b/src/test/fuzz/merkleblock.cpp index c44e334272..4710e75757 100644 --- a/src/test/fuzz/merkleblock.cpp +++ b/src/test/fuzz/merkleblock.cpp @@ -16,12 +16,36 @@ void test_one_input(const std::vector<uint8_t>& buffer) { FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size()); - std::optional<CPartialMerkleTree> partial_merkle_tree = ConsumeDeserializable<CPartialMerkleTree>(fuzzed_data_provider); - if (!partial_merkle_tree) { - return; + CPartialMerkleTree partial_merkle_tree; + switch (fuzzed_data_provider.ConsumeIntegralInRange<int>(0, 1)) { + case 0: { + const std::optional<CPartialMerkleTree> opt_partial_merkle_tree = ConsumeDeserializable<CPartialMerkleTree>(fuzzed_data_provider); + if (opt_partial_merkle_tree) { + partial_merkle_tree = *opt_partial_merkle_tree; + } + break; } - (void)partial_merkle_tree->GetNumTransactions(); + case 1: { + CMerkleBlock merkle_block; + const std::optional<CBlock> opt_block = ConsumeDeserializable<CBlock>(fuzzed_data_provider); + CBloomFilter bloom_filter; + std::set<uint256> txids; + if (opt_block && !opt_block->vtx.empty()) { + if (fuzzed_data_provider.ConsumeBool()) { + merkle_block = CMerkleBlock{*opt_block, bloom_filter}; + } else if (fuzzed_data_provider.ConsumeBool()) { + while (fuzzed_data_provider.ConsumeBool()) { + txids.insert(ConsumeUInt256(fuzzed_data_provider)); + } + merkle_block = CMerkleBlock{*opt_block, txids}; + } + } + partial_merkle_tree = merkle_block.txn; + break; + } + } + (void)partial_merkle_tree.GetNumTransactions(); std::vector<uint256> matches; std::vector<unsigned int> indices; - (void)partial_merkle_tree->ExtractMatches(matches, indices); + (void)partial_merkle_tree.ExtractMatches(matches, indices); } |