Upstream version 9.37.197.0
[platform/framework/web/crosswalk.git] / src / third_party / libjingle / source / talk / base / basictypes_unittest.cc
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
32 namespace talk_base {
33
34 TEST(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
44 TEST(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
71 TEST(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