1/*
2 * libjingle
3 * Copyright 2012 Google Inc.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 *
8 *  1. Redistributions of source code must retain the above copyright notice,
9 *     this list of conditions and the following disclaimer.
10 *  2. Redistributions in binary form must reproduce the above copyright notice,
11 *     this list of conditions and the following disclaimer in the documentation
12 *     and/or other materials provided with the distribution.
13 *  3. The name of the author may not be used to endorse or promote products
14 *     derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
19 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28#include "talk/base/basictypes.h"
29
30#include "talk/base/gunit.h"
31
32namespace talk_base {
33
34TEST(BasicTypesTest, Endian) {
35  uint16 v16 = 0x1234u;
36  uint8 first_byte = *reinterpret_cast<uint8*>(&v16);
37#if defined(ARCH_CPU_LITTLE_ENDIAN)
38  EXPECT_EQ(0x34u, first_byte);
39#elif defined(ARCH_CPU_BIG_ENDIAN)
40  EXPECT_EQ(0x12u, first_byte);
41#endif
42}
43
44TEST(BasicTypesTest, SizeOfTypes) {
45  int8 i8 = -1;
46  uint8 u8 = 1u;
47  int16 i16 = -1;
48  uint16 u16 = 1u;
49  int32 i32 = -1;
50  uint32 u32 = 1u;
51  int64 i64 = -1;
52  uint64 u64 = 1u;
53  EXPECT_EQ(1u, sizeof(i8));
54  EXPECT_EQ(1u, sizeof(u8));
55  EXPECT_EQ(2u, sizeof(i16));
56  EXPECT_EQ(2u, sizeof(u16));
57  EXPECT_EQ(4u, sizeof(i32));
58  EXPECT_EQ(4u, sizeof(u32));
59  EXPECT_EQ(8u, sizeof(i64));
60  EXPECT_EQ(8u, sizeof(u64));
61  EXPECT_GT(0, i8);
62  EXPECT_LT(0u, u8);
63  EXPECT_GT(0, i16);
64  EXPECT_LT(0u, u16);
65  EXPECT_GT(0, i32);
66  EXPECT_LT(0u, u32);
67  EXPECT_GT(0, i64);
68  EXPECT_LT(0u, u64);
69}
70
71TEST(BasicTypesTest, SizeOfConstants) {
72  EXPECT_EQ(8u, sizeof(INT64_C(0)));
73  EXPECT_EQ(8u, sizeof(UINT64_C(0)));
74  EXPECT_EQ(8u, sizeof(INT64_C(0x1234567887654321)));
75  EXPECT_EQ(8u, sizeof(UINT64_C(0x8765432112345678)));
76}
77
78// Test CPU_ macros
79#if !defined(CPU_ARM) && defined(__arm__)
80#error expected CPU_ARM to be defined.
81#endif
82#if !defined(CPU_X86) && (defined(WIN32) || defined(OSX))
83#error expected CPU_X86 to be defined.
84#endif
85#if !defined(ARCH_CPU_LITTLE_ENDIAN) && \
86  (defined(WIN32) || defined(OSX) || defined(CPU_X86))
87#error expected ARCH_CPU_LITTLE_ENDIAN to be defined.
88#endif
89
90// TODO(fbarchard): Test all macros in basictypes.h
91
92}  // namespace talk_base
93