blob: 20515ecf969c6d854d224b8769980ce0aebc5e9b [file] [log] [blame]
* Copyright 2012 The WebRTC Project Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
#include "webrtc/base/basictypes.h"
#include "webrtc/base/gunit.h"
namespace rtc {
TEST(BasicTypesTest, Endian) {
uint16 v16 = 0x1234u;
uint8 first_byte = *reinterpret_cast<uint8*>(&v16);
EXPECT_EQ(0x34u, first_byte);
#elif defined(ARCH_CPU_BIG_ENDIAN)
EXPECT_EQ(0x12u, first_byte);
TEST(BasicTypesTest, SizeOfTypes) {
int8 i8 = -1;
uint8 u8 = 1u;
int16 i16 = -1;
uint16 u16 = 1u;
int32 i32 = -1;
uint32 u32 = 1u;
int64 i64 = -1;
uint64 u64 = 1u;
EXPECT_EQ(1u, sizeof(i8));
EXPECT_EQ(1u, sizeof(u8));
EXPECT_EQ(2u, sizeof(i16));
EXPECT_EQ(2u, sizeof(u16));
EXPECT_EQ(4u, sizeof(i32));
EXPECT_EQ(4u, sizeof(u32));
EXPECT_EQ(8u, sizeof(i64));
EXPECT_EQ(8u, sizeof(u64));
EXPECT_GT(0, i8);
EXPECT_LT(0u, u8);
EXPECT_GT(0, i16);
EXPECT_LT(0u, u16);
EXPECT_GT(0, i32);
EXPECT_LT(0u, u32);
EXPECT_GT(0, i64);
EXPECT_LT(0u, u64);
TEST(BasicTypesTest, SizeOfConstants) {
EXPECT_EQ(8u, sizeof(INT64_C(0)));
EXPECT_EQ(8u, sizeof(UINT64_C(0)));
EXPECT_EQ(8u, sizeof(INT64_C(0x1234567887654321)));
EXPECT_EQ(8u, sizeof(UINT64_C(0x8765432112345678)));
// Test CPU_ macros
#if !defined(CPU_ARM) && defined(__arm__)
#error expected CPU_ARM to be defined.
#if !defined(CPU_X86) && (defined(WEBRTC_WIN) || defined(WEBRTC_MAC) && !defined(WEBRTC_IOS))
#error expected CPU_X86 to be defined.
#if !defined(ARCH_CPU_LITTLE_ENDIAN) && \
(defined(WEBRTC_WIN) || defined(WEBRTC_MAC) && !defined(WEBRTC_IOS) || defined(CPU_X86))
#error expected ARCH_CPU_LITTLE_ENDIAN to be defined.
// TODO(fbarchard): Test all macros in basictypes.h
} // namespace rtc