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122 lines
3 KiB
C++
122 lines
3 KiB
C++
#include <gtest/gtest.h>
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#include "components/misc/endianness.hpp"
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struct EndiannessTest : public ::testing::Test {};
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TEST_F(EndiannessTest, test_swap_endianness_inplace1)
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{
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uint8_t zero=0x00;
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uint8_t ff=0xFF;
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uint8_t fortytwo=0x42;
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uint8_t half=128;
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Misc::swapEndiannessInplace(zero);
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EXPECT_EQ(zero, 0x00);
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Misc::swapEndiannessInplace(ff);
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EXPECT_EQ(ff, 0xFF);
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Misc::swapEndiannessInplace(fortytwo);
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EXPECT_EQ(fortytwo, 0x42);
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Misc::swapEndiannessInplace(half);
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EXPECT_EQ(half, 128);
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}
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TEST_F(EndiannessTest, test_swap_endianness_inplace2)
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{
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uint16_t zero = 0x0000;
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uint16_t ffff = 0xFFFF;
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uint16_t n12 = 0x0102;
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uint16_t fortytwo = 0x0042;
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Misc::swapEndiannessInplace(zero);
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EXPECT_EQ(zero, 0x0000u);
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Misc::swapEndiannessInplace(zero);
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EXPECT_EQ(zero, 0x0000u);
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Misc::swapEndiannessInplace(ffff);
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EXPECT_EQ(ffff, 0xFFFFu);
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Misc::swapEndiannessInplace(ffff);
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EXPECT_EQ(ffff, 0xFFFFu);
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Misc::swapEndiannessInplace(n12);
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EXPECT_EQ(n12, 0x0201u);
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Misc::swapEndiannessInplace(n12);
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EXPECT_EQ(n12, 0x0102u);
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Misc::swapEndiannessInplace(fortytwo);
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EXPECT_EQ(fortytwo, 0x4200u);
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Misc::swapEndiannessInplace(fortytwo);
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EXPECT_EQ(fortytwo, 0x0042u);
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}
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TEST_F(EndiannessTest, test_swap_endianness_inplace4)
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{
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uint32_t zero = 0x00000000;
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uint32_t n1234 = 0x01020304;
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uint32_t ffff = 0xFFFFFFFF;
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Misc::swapEndiannessInplace(zero);
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EXPECT_EQ(zero, 0x00000000u);
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Misc::swapEndiannessInplace(zero);
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EXPECT_EQ(zero, 0x00000000u);
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Misc::swapEndiannessInplace(n1234);
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EXPECT_EQ(n1234, 0x04030201u);
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Misc::swapEndiannessInplace(n1234);
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EXPECT_EQ(n1234, 0x01020304u);
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Misc::swapEndiannessInplace(ffff);
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EXPECT_EQ(ffff, 0xFFFFFFFFu);
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Misc::swapEndiannessInplace(ffff);
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EXPECT_EQ(ffff, 0xFFFFFFFFu);
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}
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TEST_F(EndiannessTest, test_swap_endianness_inplace8)
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{
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uint64_t zero = 0x0000'0000'0000'0000;
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uint64_t n1234 = 0x0102'0304'0506'0708;
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uint64_t ffff = 0xFFFF'FFFF'FFFF'FFFF;
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Misc::swapEndiannessInplace(zero);
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EXPECT_EQ(zero, 0x0000'0000'0000'0000u);
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Misc::swapEndiannessInplace(zero);
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EXPECT_EQ(zero, 0x0000'0000'0000'0000u);
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Misc::swapEndiannessInplace(ffff);
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EXPECT_EQ(ffff, 0xFFFF'FFFF'FFFF'FFFFu);
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Misc::swapEndiannessInplace(ffff);
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EXPECT_EQ(ffff, 0xFFFF'FFFF'FFFF'FFFFu);
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Misc::swapEndiannessInplace(n1234);
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EXPECT_EQ(n1234, 0x0807'0605'0403'0201u);
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Misc::swapEndiannessInplace(n1234);
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EXPECT_EQ(n1234, 0x0102'0304'0506'0708u);
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}
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TEST_F(EndiannessTest, test_swap_endianness_inplace_float)
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{
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const uint32_t original = 0x4023d70a;
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const uint32_t expected = 0x0ad72340;
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float number;
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memcpy(&number, &original, sizeof(original));
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Misc::swapEndiannessInplace(number);
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EXPECT_TRUE(!memcmp(&number, &expected, sizeof(expected)));
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}
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TEST_F(EndiannessTest, test_swap_endianness_inplace_double)
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{
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const uint64_t original = 0x040047ae147ae147ul;
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const uint64_t expected = 0x47e17a14ae470004ul;
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double number;
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memcpy(&number, &original, sizeof(original));
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Misc::swapEndiannessInplace(number);
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EXPECT_TRUE(!memcmp(&number, &expected, sizeof(expected)) );
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}
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