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112 lines
2.1 KiB
C++
112 lines
2.1 KiB
C++
//
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// Created by claunia on 5/10/21.
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//
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#include <cstdint>
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#include "../library.h"
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#include "../crc32.h"
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#include "gtest/gtest.h"
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#define EXPECTED_CRC32 0x2B6E6854
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static const uint8_t* buffer;
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class crc32Fixture : public ::testing::Test
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{
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public:
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crc32Fixture()
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{
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// initialization;
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// can also be done in SetUp()
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}
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protected:
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void SetUp()
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{
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FILE* file = fopen("/home/claunia/random", "rb");
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buffer = (const uint8_t*)malloc(1048576);
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fread((void*)buffer, 1, 1048576, file);
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fclose(file);
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}
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void TearDown() { free((void*)buffer); }
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~crc32Fixture()
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{
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// resources cleanup, no exceptions allowed
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}
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// shared user data
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};
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TEST_F(crc32Fixture, crc32_auto)
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{
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crc32_ctx* ctx = crc32_init();
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uint32_t crc;
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EXPECT_NE(ctx, nullptr);
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crc32_update(ctx, buffer, 1048576);
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crc32_final(ctx, &crc);
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EXPECT_EQ(crc, EXPECTED_CRC32);
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}
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TEST_F(crc32Fixture, crc32_slicing)
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{
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uint32_t crc = CRC32_ISO_SEED;
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crc32_slicing(&crc, buffer, 1048576);
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crc ^= CRC32_ISO_SEED;
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EXPECT_EQ(crc, EXPECTED_CRC32);
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}
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#if defined(__x86_64__) || defined(__amd64) || defined(_M_AMD64) || defined(_M_X64) || defined(__I386__) || \
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defined(__i386__) || defined(__THW_INTEL) || defined(_M_IX86)
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TEST_F(crc32Fixture, crc32_clmul)
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{
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if(!have_clmul()) return;
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uint32_t crc = CRC32_ISO_SEED;
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crc = ~crc32_clmul(buffer, 1048576, ~crc);
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crc ^= CRC32_ISO_SEED;
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EXPECT_EQ(crc, EXPECTED_CRC32);
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}
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#endif
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#if defined(__aarch64__) || defined(_M_ARM64) || defined(__arm__) || defined(_M_ARM)
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#if __ARM_ARCH >= 8
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TEST_F(crc32Fixture, crc32_arm_crc32)
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{
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if(!have_arm_crc32()) return;
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uint32_t crc = CRC32_ISO_SEED;
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crc = armv8_crc32_little(crc, buffer, 1048576);
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crc ^= CRC32_ISO_SEED;
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EXPECT_EQ(crc, EXPECTED_CRC32);
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}
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#endif
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TEST_F(crc32Fixture, crc32_vmull)
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{
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if(!have_neon()) return;
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uint32_t crc = CRC32_ISO_SEED;
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crc = ~crc32_vmull(buffer, 1048576, ~crc);
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crc ^= CRC32_ISO_SEED;
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EXPECT_EQ(crc, EXPECTED_CRC32);
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}
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#endif
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