src/tint/utils/bytes/swap_test.cc

// Copyright 2023 The Dawn & Tint Authors
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#include "src/tint/utils/bytes/swap.h"

#include "gtest/gtest.h"

namespace tint::bytes {
namespace {

TEST(BytesSwapTest, Uint) {
    EXPECT_EQ(Swap<uint8_t>(0x41), static_cast<uint8_t>(0x41));
    EXPECT_EQ(Swap<uint16_t>(0x4152), static_cast<uint16_t>(0x5241));
    EXPECT_EQ(Swap<uint32_t>(0x41526374), static_cast<uint32_t>(0x74635241));
    EXPECT_EQ(Swap<uint64_t>(0x415263748596A7B8), static_cast<uint64_t>(0xB8A7968574635241));
}

TEST(BytesSwapTest, Sint) {
    EXPECT_EQ(Swap<int8_t>(0x41), static_cast<int8_t>(0x41));
    EXPECT_EQ(Swap<int8_t>(-0x41), static_cast<int8_t>(-0x41));
    EXPECT_EQ(Swap<int16_t>(0x4152), static_cast<int16_t>(0x5241));
    EXPECT_EQ(Swap<int16_t>(-0x4152), static_cast<int16_t>(0xAEBE));
    EXPECT_EQ(Swap<int32_t>(0x41526374), static_cast<int32_t>(0x74635241));
    EXPECT_EQ(Swap<int32_t>(-0x41526374), static_cast<int32_t>(0x8C9CADBE));
    EXPECT_EQ(Swap<int64_t>(0x415263748596A7B8), static_cast<int64_t>(0xB8A7968574635241));
    EXPECT_EQ(Swap<int64_t>(-0x415263748596A7B8), static_cast<int64_t>(0x4858697A8B9CADBE));
}

}  // namespace
}  // namespace tint::bytes