| 29 | namespace arrow { |
| 30 | |
| 31 | TEST(Crc32Test, Basic) { |
| 32 | // use the string "123456789" in ASCII as test data. |
| 33 | constexpr uint32_t TEST_CRC32_RESULT = 0xCBF43926; |
| 34 | constexpr size_t TEST_CRC32_LENGTH = 9; |
| 35 | std::array<unsigned char, TEST_CRC32_LENGTH> std_data = {0x31, 0x32, 0x33, 0x34, 0x35, |
| 36 | 0x36, 0x37, 0x38, 0x39}; |
| 37 | const size_t std_data_len = sizeof(std_data) / sizeof(std_data[0]); |
| 38 | EXPECT_EQ(TEST_CRC32_RESULT, internal::crc32(0, &std_data[0], std_data_len)); |
| 39 | |
| 40 | for (size_t i = 1; i < std_data_len - 1; ++i) { |
| 41 | uint32_t crc1 = internal::crc32(0, &std_data[0], i); |
| 42 | EXPECT_EQ(TEST_CRC32_RESULT, internal::crc32(crc1, &std_data[i], std_data_len - i)); |
| 43 | } |
| 44 | } |
| 45 | |
| 46 | TEST(Crc32Test, matchesBoost32Type) { |
| 47 | const size_t BUFFER_SIZE = 512 * 1024 * sizeof(uint64_t); |