1// Tencent is pleased to support the open source community by making RapidJSON available.
2//
3// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved.
4//
5// Licensed under the MIT License (the "License"); you may not use this file except
6// in compliance with the License. You may obtain a copy of the License at
7//
8// http://opensource.org/licenses/MIT
9//
10// Unless required by applicable law or agreed to in writing, software distributed
11// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
12// CONDITIONS OF ANY KIND, either express or implied. See the License for the
13// specific language governing permissions and limitations under the License.
14
15#ifndef UNITTEST_H_
16#define UNITTEST_H_
17
18
19// gtest indirectly included inttypes.h, without __STDC_CONSTANT_MACROS.
20#ifndef __STDC_CONSTANT_MACROS
21#  define __STDC_CONSTANT_MACROS 1 // required by C++ standard
22#endif
23
24#ifdef _MSC_VER
25#define _CRTDBG_MAP_ALLOC
26#include <crtdbg.h>
27#pragma warning(disable : 4996) // 'function': was declared deprecated
28#endif
29
30#if defined(__clang__) || defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 2))
31#if defined(__clang__) || (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6))
32#pragma GCC diagnostic push
33#endif
34#pragma GCC diagnostic ignored "-Weffc++"
35#endif
36
37#include "gtest/gtest.h"
38#include <stdexcept>
39
40#if defined(__clang__) || defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6))
41#pragma GCC diagnostic pop
42#endif
43
44template <typename Ch>
45inline unsigned StrLen(const Ch* s) {
46    const Ch* p = s;
47    while (*p) p++;
48    return unsigned(p - s);
49}
50
51template<typename Ch>
52inline int StrCmp(const Ch* s1, const Ch* s2) {
53    while(*s1 && (*s1 == *s2)) { s1++; s2++; }
54    return (unsigned)*s1 < (unsigned)*s2 ? -1 : (unsigned)*s1 > (unsigned)*s2;
55}
56
57template <typename Ch>
58inline Ch* StrDup(const Ch* str) {
59    size_t bufferSize = sizeof(Ch) * (StrLen(str) + 1);
60    Ch* buffer = (Ch*)malloc(bufferSize);
61    memcpy(buffer, str, bufferSize);
62    return buffer;
63}
64
65inline FILE* TempFile(char *filename) {
66#if _MSC_VER
67    filename = tmpnam(filename);
68
69    // For Visual Studio, tmpnam() adds a backslash in front. Remove it.
70    if (filename[0] == '\\')
71        for (int i = 0; filename[i] != '\0'; i++)
72            filename[i] = filename[i + 1];
73
74    return fopen(filename, "wb");
75#else
76    strcpy(filename, "/tmp/fileXXXXXX");
77    int fd = mkstemp(filename);
78    return fdopen(fd, "w");
79#endif
80}
81
82// Use exception for catching assert
83#if _MSC_VER
84#pragma warning(disable : 4127)
85#endif
86
87class AssertException : public std::logic_error {
88public:
89    AssertException(const char* w) : std::logic_error(w) {}
90};
91
92#define RAPIDJSON_ASSERT(x) if (!(x)) throw AssertException(RAPIDJSON_STRINGIFY(x))
93
94class Random {
95public:
96    Random(unsigned seed = 0) : mSeed(seed) {}
97
98    unsigned operator()() {
99        mSeed = 214013 * mSeed + 2531011;
100        return mSeed;
101    }
102
103private:
104    unsigned mSeed;
105};
106
107#endif // UNITTEST_H_
108