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Diffstat (limited to '3rdparty/bx/tests/hash_test.cpp')
-rw-r--r-- | 3rdparty/bx/tests/hash_test.cpp | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/3rdparty/bx/tests/hash_test.cpp b/3rdparty/bx/tests/hash_test.cpp new file mode 100644 index 00000000000..8fbc542af94 --- /dev/null +++ b/3rdparty/bx/tests/hash_test.cpp @@ -0,0 +1,79 @@ +/* + * Copyright 2010-2017 Branimir Karadzic. All rights reserved. + * License: https://github.com/bkaradzic/bx#license-bsd-2-clause + */ + +#include "test.h" +#include <bx/hash.h> + +void makeCrcTable(uint32_t _poly) +{ + for (uint32_t ii = 0; ii < 256; ++ii) + { + uint32_t crc = ii; + for (uint32_t jj = 0; jj < 8; ++jj) + { + if (1 == (crc & 1) ) + { + crc = (crc >> 1) ^ _poly; + } + else + { + crc >>= 1; + } + } + + printf("0x%08x,%c", crc, 7 == (ii & 7) ? '\n' : ' '); + } +} + +struct HashTest +{ + uint32_t crc32; + uint32_t adler32; + const char* input; +}; + +const HashTest s_hashTest[] = +{ + { 0, 1, "" }, + { 0xe8b7be43, 0x00620062, "a" }, + { 0x9e83486d, 0x012600c4, "ab" }, + { 0xc340daab, 0x06060205, "abvgd" }, + { 0x07642fe2, 0x020a00d6, "1389" }, + { 0x26d75737, 0x04530139, "555333" }, +}; + +TEST_CASE("HashCrc32", "") +{ +#if 0 + makeCrcTable(0xedb88320); + printf("\n"); + makeCrcTable(0x82f63b78); + printf("\n"); + makeCrcTable(0xeb31d82e); +#endif // 0 + + for (uint32_t ii = 0; ii < BX_COUNTOF(s_hashTest); ++ii) + { + const HashTest& test = s_hashTest[ii]; + + bx::HashCrc32 hash; + hash.begin(); + hash.add(test.input, bx::strLen(test.input) ); + REQUIRE(test.crc32 == hash.end() ); + } +} + +TEST_CASE("HashAdler32", "") +{ + for (uint32_t ii = 0; ii < BX_COUNTOF(s_hashTest); ++ii) + { + const HashTest& test = s_hashTest[ii]; + + bx::HashAdler32 hash; + hash.begin(); + hash.add(test.input, bx::strLen(test.input) ); + REQUIRE(test.adler32 == hash.end() ); + } +} |