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      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 
     44 template <typename Ch>
     45 inline unsigned StrLen(const Ch* s) {
     46     const Ch* p = s;
     47     while (*p) p++;
     48     return unsigned(p - s);
     49 }
     50 
     51 template<typename Ch>
     52 inline 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 
     57 template <typename Ch>
     58 inline 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 
     65 inline 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 
     87 class AssertException : public std::logic_error {
     88 public:
     89     AssertException(const char* w) : std::logic_error(w) {}
     90 };
     91 
     92 #define RAPIDJSON_ASSERT(x) if (!(x)) throw AssertException(RAPIDJSON_STRINGIFY(x))
     93 
     94 class Random {
     95 public:
     96     Random(unsigned seed = 0) : mSeed(seed) {}
     97 
     98     unsigned operator()() {
     99         mSeed = 214013 * mSeed + 2531011;
    100         return mSeed;
    101     }
    102 
    103 private:
    104     unsigned mSeed;
    105 };
    106 
    107 #endif // UNITTEST_H_
    108