1/*
2 *  Copyright 2012 The WebRTC Project Authors. All rights reserved.
3 *
4 *  Use of this source code is governed by a BSD-style license
5 *  that can be found in the LICENSE file in the root of the source
6 *  tree. An additional intellectual property rights grant can be found
7 *  in the file PATENTS.  All contributing project authors may
8 *  be found in the AUTHORS file in the root of the source tree.
9 */
10
11#include "webrtc/base/basictypes.h"
12
13#include "webrtc/base/gunit.h"
14
15namespace rtc {
16
17TEST(BasicTypesTest, Endian) {
18  uint16 v16 = 0x1234u;
19  uint8 first_byte = *reinterpret_cast<uint8*>(&v16);
20#if defined(ARCH_CPU_LITTLE_ENDIAN)
21  EXPECT_EQ(0x34u, first_byte);
22#elif defined(ARCH_CPU_BIG_ENDIAN)
23  EXPECT_EQ(0x12u, first_byte);
24#endif
25}
26
27TEST(BasicTypesTest, SizeOfTypes) {
28  int8 i8 = -1;
29  uint8 u8 = 1u;
30  int16 i16 = -1;
31  uint16 u16 = 1u;
32  int32 i32 = -1;
33  uint32 u32 = 1u;
34  int64 i64 = -1;
35  uint64 u64 = 1u;
36  EXPECT_EQ(1u, sizeof(i8));
37  EXPECT_EQ(1u, sizeof(u8));
38  EXPECT_EQ(2u, sizeof(i16));
39  EXPECT_EQ(2u, sizeof(u16));
40  EXPECT_EQ(4u, sizeof(i32));
41  EXPECT_EQ(4u, sizeof(u32));
42  EXPECT_EQ(8u, sizeof(i64));
43  EXPECT_EQ(8u, sizeof(u64));
44  EXPECT_GT(0, i8);
45  EXPECT_LT(0u, u8);
46  EXPECT_GT(0, i16);
47  EXPECT_LT(0u, u16);
48  EXPECT_GT(0, i32);
49  EXPECT_LT(0u, u32);
50  EXPECT_GT(0, i64);
51  EXPECT_LT(0u, u64);
52}
53
54TEST(BasicTypesTest, SizeOfConstants) {
55  EXPECT_EQ(8u, sizeof(INT64_C(0)));
56  EXPECT_EQ(8u, sizeof(UINT64_C(0)));
57  EXPECT_EQ(8u, sizeof(INT64_C(0x1234567887654321)));
58  EXPECT_EQ(8u, sizeof(UINT64_C(0x8765432112345678)));
59}
60
61// Test CPU_ macros
62#if !defined(CPU_ARM) && defined(__arm__)
63#error expected CPU_ARM to be defined.
64#endif
65#if !defined(CPU_X86) && (defined(WEBRTC_WIN) || defined(WEBRTC_MAC) && !defined(WEBRTC_IOS))
66#error expected CPU_X86 to be defined.
67#endif
68#if !defined(ARCH_CPU_LITTLE_ENDIAN) && \
69  (defined(WEBRTC_WIN) || defined(WEBRTC_MAC) && !defined(WEBRTC_IOS) || defined(CPU_X86))
70#error expected ARCH_CPU_LITTLE_ENDIAN to be defined.
71#endif
72
73// TODO(fbarchard): Test all macros in basictypes.h
74
75}  // namespace rtc
76