diff options
Diffstat (limited to 'base/sys_byteorder_unittest.cc')
-rw-r--r-- | base/sys_byteorder_unittest.cc | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/base/sys_byteorder_unittest.cc b/base/sys_byteorder_unittest.cc new file mode 100644 index 0000000000..8167be3b9a --- /dev/null +++ b/base/sys_byteorder_unittest.cc @@ -0,0 +1,142 @@ +// Copyright (c) 2016 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#include "base/sys_byteorder.h" + +#include <stdint.h> + +#include "build/build_config.h" +#include "testing/gtest/include/gtest/gtest.h" + +namespace { + +const uint16_t k16BitTestData = 0xaabb; +const uint16_t k16BitSwappedTestData = 0xbbaa; +const uint32_t k32BitTestData = 0xaabbccdd; +const uint32_t k32BitSwappedTestData = 0xddccbbaa; +const uint64_t k64BitTestData = 0xaabbccdd44332211; +const uint64_t k64BitSwappedTestData = 0x11223344ddccbbaa; + +} // namespace + +TEST(ByteOrderTest, ByteSwap16) { + uint16_t swapped = base::ByteSwap(k16BitTestData); + EXPECT_EQ(k16BitSwappedTestData, swapped); + uint16_t reswapped = base::ByteSwap(swapped); + EXPECT_EQ(k16BitTestData, reswapped); +} + +TEST(ByteOrderTest, ByteSwap32) { + uint32_t swapped = base::ByteSwap(k32BitTestData); + EXPECT_EQ(k32BitSwappedTestData, swapped); + uint32_t reswapped = base::ByteSwap(swapped); + EXPECT_EQ(k32BitTestData, reswapped); +} + +TEST(ByteOrderTest, ByteSwap64) { + uint64_t swapped = base::ByteSwap(k64BitTestData); + EXPECT_EQ(k64BitSwappedTestData, swapped); + uint64_t reswapped = base::ByteSwap(swapped); + EXPECT_EQ(k64BitTestData, reswapped); +} + +TEST(ByteOrderTest, ByteSwapUintPtrT) { +#if defined(ARCH_CPU_64_BITS) + const uintptr_t test_data = static_cast<uintptr_t>(k64BitTestData); + const uintptr_t swapped_test_data = + static_cast<uintptr_t>(k64BitSwappedTestData); +#elif defined(ARCH_CPU_32_BITS) + const uintptr_t test_data = static_cast<uintptr_t>(k32BitTestData); + const uintptr_t swapped_test_data = + static_cast<uintptr_t>(k32BitSwappedTestData); +#else +#error architecture not supported +#endif + + uintptr_t swapped = base::ByteSwapUintPtrT(test_data); + EXPECT_EQ(swapped_test_data, swapped); + uintptr_t reswapped = base::ByteSwapUintPtrT(swapped); + EXPECT_EQ(test_data, reswapped); +} + +TEST(ByteOrderTest, ByteSwapToLE16) { + uint16_t le = base::ByteSwapToLE16(k16BitTestData); +#if defined(ARCH_CPU_LITTLE_ENDIAN) + EXPECT_EQ(k16BitTestData, le); +#else + EXPECT_EQ(k16BitSwappedTestData, le); +#endif +} + +TEST(ByteOrderTest, ByteSwapToLE32) { + uint32_t le = base::ByteSwapToLE32(k32BitTestData); +#if defined(ARCH_CPU_LITTLE_ENDIAN) + EXPECT_EQ(k32BitTestData, le); +#else + EXPECT_EQ(k32BitSwappedTestData, le); +#endif +} + +TEST(ByteOrderTest, ByteSwapToLE64) { + uint64_t le = base::ByteSwapToLE64(k64BitTestData); +#if defined(ARCH_CPU_LITTLE_ENDIAN) + EXPECT_EQ(k64BitTestData, le); +#else + EXPECT_EQ(k64BitSwappedTestData, le); +#endif +} + +TEST(ByteOrderTest, NetToHost16) { + uint16_t h = base::NetToHost16(k16BitTestData); +#if defined(ARCH_CPU_LITTLE_ENDIAN) + EXPECT_EQ(k16BitSwappedTestData, h); +#else + EXPECT_EQ(k16BitTestData, h); +#endif +} + +TEST(ByteOrderTest, NetToHost32) { + uint32_t h = base::NetToHost32(k32BitTestData); +#if defined(ARCH_CPU_LITTLE_ENDIAN) + EXPECT_EQ(k32BitSwappedTestData, h); +#else + EXPECT_EQ(k32BitTestData, h); +#endif +} + +TEST(ByteOrderTest, NetToHost64) { + uint64_t h = base::NetToHost64(k64BitTestData); +#if defined(ARCH_CPU_LITTLE_ENDIAN) + EXPECT_EQ(k64BitSwappedTestData, h); +#else + EXPECT_EQ(k64BitTestData, h); +#endif +} + +TEST(ByteOrderTest, HostToNet16) { + uint16_t n = base::HostToNet16(k16BitTestData); +#if defined(ARCH_CPU_LITTLE_ENDIAN) + EXPECT_EQ(k16BitSwappedTestData, n); +#else + EXPECT_EQ(k16BitTestData, n); +#endif +} + +TEST(ByteOrderTest, HostToNet32) { + uint32_t n = base::HostToNet32(k32BitTestData); +#if defined(ARCH_CPU_LITTLE_ENDIAN) + EXPECT_EQ(k32BitSwappedTestData, n); +#else + EXPECT_EQ(k32BitTestData, n); +#endif +} + +TEST(ByteOrderTest, HostToNet64) { + uint64_t n = base::HostToNet64(k64BitTestData); +#if defined(ARCH_CPU_LITTLE_ENDIAN) + EXPECT_EQ(k64BitSwappedTestData, n); +#else + EXPECT_EQ(k64BitTestData, n); +#endif +} |