Check roundtrip of one-shot compression and decompression functions.
| 59 | |
| 60 | // Check roundtrip of one-shot compression and decompression functions. |
| 61 | void CheckCodecRoundtrip(std::unique_ptr<Codec>& c1, std::unique_ptr<Codec>& c2, |
| 62 | const std::vector<uint8_t>& data, bool check_reverse = true) { |
| 63 | int max_compressed_len = |
| 64 | static_cast<int>(c1->MaxCompressedLen(data.size(), data.data())); |
| 65 | std::vector<uint8_t> compressed(max_compressed_len); |
| 66 | std::vector<uint8_t> decompressed(data.size()); |
| 67 | |
| 68 | // compress with c1 |
| 69 | int64_t actual_size; |
| 70 | ASSERT_OK_AND_ASSIGN(actual_size, c1->Compress(data.size(), data.data(), |
| 71 | max_compressed_len, compressed.data())); |
| 72 | compressed.resize(actual_size); |
| 73 | |
| 74 | // decompress with c2 |
| 75 | int64_t actual_decompressed_size; |
| 76 | ASSERT_OK_AND_ASSIGN(actual_decompressed_size, |
| 77 | c2->Decompress(compressed.size(), compressed.data(), |
| 78 | decompressed.size(), decompressed.data())); |
| 79 | |
| 80 | ASSERT_EQ(data, decompressed); |
| 81 | ASSERT_EQ(data.size(), actual_decompressed_size); |
| 82 | |
| 83 | if (check_reverse) { |
| 84 | // compress with c2 |
| 85 | ASSERT_EQ(max_compressed_len, |
| 86 | static_cast<int>(c2->MaxCompressedLen(data.size(), data.data()))); |
| 87 | // Resize to prevent ASAN from detecting container overflow. |
| 88 | compressed.resize(max_compressed_len); |
| 89 | |
| 90 | int64_t actual_size2; |
| 91 | ASSERT_OK_AND_ASSIGN( |
| 92 | actual_size2, |
| 93 | c2->Compress(data.size(), data.data(), max_compressed_len, compressed.data())); |
| 94 | ASSERT_EQ(actual_size2, actual_size); |
| 95 | compressed.resize(actual_size2); |
| 96 | |
| 97 | // decompress with c1 |
| 98 | int64_t actual_decompressed_size2; |
| 99 | ASSERT_OK_AND_ASSIGN(actual_decompressed_size2, |
| 100 | c1->Decompress(compressed.size(), compressed.data(), |
| 101 | decompressed.size(), decompressed.data())); |
| 102 | |
| 103 | ASSERT_EQ(data, decompressed); |
| 104 | ASSERT_EQ(data.size(), actual_decompressed_size2); |
| 105 | } |
| 106 | } |
| 107 | |
| 108 | // Check the streaming compressor against one-shot decompression |
| 109 |
no test coverage detected