about summary refs log tree commit diff
path: root/src/googletest.h
blob: a9e7795dcae117d9f991b3965ceb7c1dbf54aed1 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
// Copyright (c) 2009, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
//     * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
//     * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Author: Shinichiro Hamaji
//   (based on googletest: http://code.google.com/p/googletest/)

#ifdef GOOGLETEST_H__
#error You must not include this file twice.
#endif
#define GOOGLETEST_H__

#include "utilities.h"

#include <ctype.h>
#include <setjmp.h>
#include <time.h>

#include <map>
#include <sstream>
#include <string>
#include <vector>

#include <stdio.h>
#include <stdlib.h>

#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif

#include "base/commandlineflags.h"

using std::map;
using std::string;
using std::vector;

_START_GOOGLE_NAMESPACE_

extern GOOGLE_GLOG_DLL_DECL void (*g_logging_fail_func)();

_END_GOOGLE_NAMESPACE_

#undef GOOGLE_GLOG_DLL_DECL
#define GOOGLE_GLOG_DLL_DECL

static inline string GetTempDir() {
#ifndef OS_WINDOWS
  return "/tmp";
#else
  char tmp[MAX_PATH];
  GetTempPathA(MAX_PATH, tmp);
  return tmp;
#endif
}

#if defined(OS_WINDOWS) && defined(_MSC_VER) && !defined(TEST_SRC_DIR)
// The test will run in glog/vsproject/<project name>
// (e.g., glog/vsproject/logging_unittest).
static const char TEST_SRC_DIR[] = "../..";
#elif !defined(TEST_SRC_DIR)
# warning TEST_SRC_DIR should be defined in config.h
static const char TEST_SRC_DIR[] = ".";
#endif

static const uint32_t PTR_TEST_VALUE = 0x12345678;

DEFINE_string(test_tmpdir, GetTempDir(), "Dir we use for temp files");
DEFINE_string(test_srcdir, TEST_SRC_DIR,
              "Source-dir root, needed to find glog_unittest_flagfile");
DEFINE_bool(run_benchmark, false, "If true, run benchmarks");
#ifdef NDEBUG
DEFINE_int32(benchmark_iters, 100000000, "Number of iterations per benchmark");
#else
DEFINE_int32(benchmark_iters, 100000, "Number of iterations per benchmark");
#endif

#ifdef HAVE_LIB_GTEST
# include <gtest/gtest.h>
// Use our ASSERT_DEATH implementation.
# undef ASSERT_DEATH
# undef ASSERT_DEBUG_DEATH
using testing::InitGoogleTest;
#else

_START_GOOGLE_NAMESPACE_

void InitGoogleTest(int*, char**);

void InitGoogleTest(int*, char**) {}

// The following is some bare-bones testing infrastructure

#define EXPECT_TRUE(cond)                               \
  do {                                                  \
    if (!(cond)) {                                      \
      fprintf(stderr, "Check failed: %s\n", #cond);     \
      exit(1);                                          \
    }                                                   \
  } while (0)

#define EXPECT_FALSE(cond)  EXPECT_TRUE(!(cond))

#define EXPECT_OP(op, val1, val2)                                       \
  do {                                                                  \
    if (!((val1) op (val2))) {                                          \
      fprintf(stderr, "Check failed: %s %s %s\n", #val1, #op, #val2);   \
      exit(1);                                                          \
    }                                                                   \
  } while (0)

#define EXPECT_EQ(val1, val2)  EXPECT_OP(==, val1, val2)
#define EXPECT_NE(val1, val2)  EXPECT_OP(!=, val1, val2)
#define EXPECT_GT(val1, val2)  EXPECT_OP(>, val1, val2)
#define EXPECT_LT(val1, val2)  EXPECT_OP(<, val1, val2)

#define EXPECT_NAN(arg)                                         \
  do {                                                          \
    if (!isnan(arg)) {                                          \
      fprintf(stderr, "Check failed: isnan(%s)\n", #arg);       \
      exit(1);                                                  \
    }                                                           \
  } while (0)

#define EXPECT_INF(arg)                                         \
  do {                                                          \
    if (!isinf(arg)) {                                          \
      fprintf(stderr, "Check failed: isinf(%s)\n", #arg);       \
      exit(1);                                                  \
    }                                                           \
  } while (0)

#define EXPECT_DOUBLE_EQ(val1, val2)                                    \
  do {                                                                  \
    if (((val1) < (val2) - 0.001 || (val1) > (val2) + 0.001)) {         \
      fprintf(stderr, "Check failed: %s == %s\n", #val1, #val2);        \
      exit(1);                                                          \
    }                                                                   \
  } while (0)

#define EXPECT_STREQ(val1, val2)                                        \
  do {                                                                  \
    if (strcmp((val1), (val2)) != 0) {                                  \
      fprintf(stderr, "Check failed: streq(%s, %s)\n", #val1, #val2);   \
      exit(1);                                                          \
    }                                                                   \
  } while (0)

vector<void (*)()> g_testlist;  // the tests to run

#define TEST(a, b)                                      \
  struct Test_##a##_##b {                               \
    Test_##a##_##b() { g_testlist.push_back(&Run); }    \
    static void Run() { FlagSaver fs; RunTest(); }      \
    static void RunTest();                              \
  };                                                    \
  static Test_##a##_##b g_test_##a##_##b;               \
  void Test_##a##_##b::RunTest()


static inline int RUN_ALL_TESTS() {
  vector<void (*)()>::const_iterator it;
  for (it = g_testlist.begin(); it != g_testlist.end(); ++it) {
    (*it)();
  }
  fprintf(stderr, "Passed %d tests\n\nPASS\n", (int)g_testlist.size());
  return 0;
}

_END_GOOGLE_NAMESPACE_

#endif  // ! HAVE_LIB_GTEST

_START_GOOGLE_NAMESPACE_

static bool g_called_abort;
static jmp_buf g_jmp_buf;
static inline void CalledAbort() {
  g_called_abort = true;
  longjmp(g_jmp_buf, 1);
}

#ifdef OS_WINDOWS
// TODO(hamaji): Death test somehow doesn't work in Windows.
#define ASSERT_DEATH(fn, msg)
#else
#define ASSERT_DEATH(fn, msg)                                           \
  do {                                                                  \
    g_called_abort = false;                                             \
    /* in logging.cc */                                                 \
    void (*original_logging_fail_func)() = g_logging_fail_func;         \
    g_logging_fail_func = &CalledAbort;                                 \
    if (!setjmp(g_jmp_buf)) fn;                                         \
    /* set back to their default */                                     \
    g_logging_fail_func = original_logging_fail_func;                   \
    if (!g_called_abort) {                                              \
      fprintf(stderr, "Function didn't die (%s): %s\n", msg, #fn);      \
      exit(1);                                                          \
    }                                                                   \
  } while (0)
#endif

#ifdef NDEBUG
#define ASSERT_DEBUG_DEATH(fn, msg)
#else
#define ASSERT_DEBUG_DEATH(fn, msg) ASSERT_DEATH(fn, msg)
#endif  // NDEBUG

// Benchmark tools.

#define BENCHMARK(n) static BenchmarkRegisterer __benchmark_ ## n (#n, &n);

map<string, void (*)(int)> g_benchlist;  // the benchmarks to run

class BenchmarkRegisterer {
 public:
  BenchmarkRegisterer(const char* name, void (*function)(int iters)) {
    EXPECT_TRUE(g_benchlist.insert(std::make_pair(name, function)).second);
  }
};

static inline void RunSpecifiedBenchmarks() {
  if (!FLAGS_run_benchmark) {
    return;
  }

  int iter_cnt = FLAGS_benchmark_iters;
  puts("Benchmark\tTime(ns)\tIterations");
  for (map<string, void (*)(int)>::const_iterator iter = g_benchlist.begin();
       iter != g_benchlist.end();
       ++iter) {
    clock_t start = clock();
    iter->second(iter_cnt);
    double elapsed_ns =
        ((double)clock() - start) / CLOCKS_PER_SEC * 1000*1000*1000;
    printf("%s\t%8.2lf\t%10d\n",
           iter->first.c_str(), elapsed_ns / iter_cnt, iter_cnt);
  }
  puts("");
}

// ----------------------------------------------------------------------
// Golden file functions
// ----------------------------------------------------------------------

class CapturedStream {
 public:
  CapturedStream(int fd, const string & filename) :
    fd_(fd),
    uncaptured_fd_(-1),
    filename_(filename) {
    Capture();
  }

  ~CapturedStream() {
    if (uncaptured_fd_ != -1) {
      CHECK(close(uncaptured_fd_) != -1);
    }
  }

  // Start redirecting output to a file
  void Capture() {
    // Keep original stream for later
    CHECK(uncaptured_fd_ == -1) << ", Stream " << fd_ << " already captured!";
    uncaptured_fd_ = dup(fd_);
    CHECK(uncaptured_fd_ != -1);

    // Open file to save stream to
    int cap_fd = open(filename_.c_str(),
                      O_CREAT | O_TRUNC | O_WRONLY,
                      S_IRUSR | S_IWUSR);
    CHECK(cap_fd != -1);

    // Send stdout/stderr to this file
    fflush(NULL);
    CHECK(dup2(cap_fd, fd_) != -1);
    CHECK(close(cap_fd) != -1);
  }

  // Remove output redirection
  void StopCapture() {
    // Restore original stream
    if (uncaptured_fd_ != -1) {
      fflush(NULL);
      CHECK(dup2(uncaptured_fd_, fd_) != -1);
    }
  }

  const string & filename() const { return filename_; }

 private:
  int fd_;             // file descriptor being captured
  int uncaptured_fd_;  // where the stream was originally being sent to
  string filename_;    // file where stream is being saved
};
static CapturedStream * s_captured_streams[STDERR_FILENO+1];
// Redirect a file descriptor to a file.
//   fd       - Should be STDOUT_FILENO or STDERR_FILENO
//   filename - File where output should be stored
static inline void CaptureTestOutput(int fd, const string & filename) {
  CHECK((fd == STDOUT_FILENO) || (fd == STDERR_FILENO));
  CHECK(s_captured_streams[fd] == NULL);
  s_captured_streams[fd] = new CapturedStream(fd, filename);
}
static inline void CaptureTestStderr() {
  CaptureTestOutput(STDERR_FILENO, FLAGS_test_tmpdir + "/captured.err");
}
// Return the size (in bytes) of a file
static inline size_t GetFileSize(FILE * file) {
  fseek(file, 0, SEEK_END);
  return static_cast<size_t>(ftell(file));
}
// Read the entire content of a file as a string
static inline string ReadEntireFile(FILE * file) {
  const size_t file_size = GetFileSize(file);
  char * const buffer = new char[file_size];

  size_t bytes_last_read = 0;  // # of bytes read in the last fread()
  size_t bytes_read = 0;       // # of bytes read so far

  fseek(file, 0, SEEK_SET);

  // Keep reading the file until we cannot read further or the
  // pre-determined file size is reached.
  do {
    bytes_last_read = fread(buffer+bytes_read, 1, file_size-bytes_read, file);
    bytes_read += bytes_last_read;
  } while (bytes_last_read > 0 && bytes_read < file_size);

  const string content = string(buffer, buffer+bytes_read);
  delete[] buffer;

  return content;
}
// Get the captured stdout (when fd is STDOUT_FILENO) or stderr (when
// fd is STDERR_FILENO) as a string
static inline string GetCapturedTestOutput(int fd) {
  CHECK(fd == STDOUT_FILENO || fd == STDERR_FILENO);
  CapturedStream * const cap = s_captured_streams[fd];
  CHECK(cap)
    << ": did you forget CaptureTestStdout() or CaptureTestStderr()?";

  // Make sure everything is flushed.
  cap->StopCapture();

  // Read the captured file.
  FILE * const file = fopen(cap->filename().c_str(), "r");
  const string content = ReadEntireFile(file);
  fclose(file);

  delete cap;
  s_captured_streams[fd] = NULL;

  return content;
}
// Get the captured stderr of a test as a string.
static inline string GetCapturedTestStderr() {
  return GetCapturedTestOutput(STDERR_FILENO);
}

// Check if the string is [IWEF](\d{8}|YEARDATE)
static inline bool IsLoggingPrefix(const string& s) {
  if (s.size() != 9) return false;
  if (!strchr("IWEF", s[0])) return false;
  for (int i = 1; i <= 8; ++i) {
    if (!isdigit(s[i]) && s[i] != "YEARDATE"[i-1]) return false;
  }
  return true;
}

// Convert log output into normalized form.
//
// Example:
//     I20200102 030405 logging_unittest.cc:345] RAW: vlog -1
//  => IYEARDATE TIME__ logging_unittest.cc:LINE] RAW: vlog -1
static inline string MungeLine(const string& line) {
  std::istringstream iss(line);
  string before, logcode_date, time, thread_lineinfo;
  iss >> logcode_date;
  while (!IsLoggingPrefix(logcode_date)) {
    before += " " + logcode_date;
    if (!(iss >> logcode_date)) {
      // We cannot find the header of log output.
      return before;
    }
  }
  if (!before.empty()) before += " ";
  iss >> time;
  iss >> thread_lineinfo;
  CHECK(!thread_lineinfo.empty());
  if (thread_lineinfo[thread_lineinfo.size() - 1] != ']') {
    // We found thread ID.
    string tmp;
    iss >> tmp;
    CHECK(!tmp.empty());
    CHECK_EQ(']', tmp[tmp.size() - 1]);
    thread_lineinfo = "THREADID " + tmp;
  }
  size_t index = thread_lineinfo.find(':');
  CHECK_NE(string::npos, index);
  thread_lineinfo = thread_lineinfo.substr(0, index+1) + "LINE]";
  string rest;
  std::getline(iss, rest);
  return (before + logcode_date[0] + "YEARDATE TIME__ " + thread_lineinfo +
          MungeLine(rest));
}

static inline void StringReplace(string* str,
                          const string& oldsub,
                          const string& newsub) {
  size_t pos = str->find(oldsub);
  if (pos != string::npos) {
    str->replace(pos, oldsub.size(), newsub.c_str());
  }
}

static inline string Munge(const string& filename) {
  FILE* fp = fopen(filename.c_str(), "rb");
  CHECK(fp != NULL) << filename << ": couldn't open";
  char buf[4096];
  string result;
  while (fgets(buf, 4095, fp)) {
    string line = MungeLine(buf);
    char null_str[256];
    char ptr_str[256];
    sprintf(null_str, "%p", static_cast<void*>(NULL));
    sprintf(ptr_str, "%p", reinterpret_cast<void*>(PTR_TEST_VALUE));

    StringReplace(&line, "__NULLP__", null_str);
    StringReplace(&line, "__PTRTEST__", ptr_str);

    StringReplace(&line, "__SUCCESS__", StrError(0));
    StringReplace(&line, "__ENOENT__", StrError(ENOENT));
    StringReplace(&line, "__EINTR__", StrError(EINTR));
    StringReplace(&line, "__ENXIO__", StrError(ENXIO));
    StringReplace(&line, "__ENOEXEC__", StrError(ENOEXEC));
    result += line + "\n";
  }
  fclose(fp);
  return result;
}

static inline void WriteToFile(const string& body, const string& file) {
  FILE* fp = fopen(file.c_str(), "wb");
  fwrite(body.data(), 1, body.size(), fp);
  fclose(fp);
}

static inline bool MungeAndDiffTestStderr(const string& golden_filename) {
  CapturedStream* cap = s_captured_streams[STDERR_FILENO];
  CHECK(cap) << ": did you forget CaptureTestStderr()?";

  cap->StopCapture();

  // Run munge
  const string captured = Munge(cap->filename());
  const string golden = Munge(golden_filename);
  if (captured != golden) {
    fprintf(stderr,
            "Test with golden file failed. We'll try to show the diff:\n");
    string munged_golden = golden_filename + ".munged";
    WriteToFile(golden, munged_golden);
    string munged_captured = cap->filename() + ".munged";
    WriteToFile(captured, munged_captured);
#ifdef OS_WINDOWS
    string diffcmd("fc " + munged_golden + " " + munged_captured);
#else
    string diffcmd("diff -u " + munged_golden + " " + munged_captured);
#endif
    if (system(diffcmd.c_str()) != 0) {
      fprintf(stderr, "diff command was failed.\n");
    }
    unlink(munged_golden.c_str());
    unlink(munged_captured.c_str());
    return false;
  }
  LOG(INFO) << "Diff was successful";
  return true;
}

// Save flags used from logging_unittest.cc.
#ifndef HAVE_LIB_GFLAGS
struct FlagSaver {
  FlagSaver()
      : v_(FLAGS_v),
        stderrthreshold_(FLAGS_stderrthreshold),
        logtostderr_(FLAGS_logtostderr),
        alsologtostderr_(FLAGS_alsologtostderr) {}
  ~FlagSaver() {
    FLAGS_v = v_;
    FLAGS_stderrthreshold = stderrthreshold_;
    FLAGS_logtostderr = logtostderr_;
    FLAGS_alsologtostderr = alsologtostderr_;
  }
  int v_;
  int stderrthreshold_;
  bool logtostderr_;
  bool alsologtostderr_;
};
#endif

class Thread {
 public:
  virtual ~Thread() {}

  void SetJoinable(bool) {}
#if defined(OS_WINDOWS) && !defined(OS_CYGWIN)
  void Start() {
    handle_ = CreateThread(NULL,
                           0,
                           (LPTHREAD_START_ROUTINE)&Thread::InvokeThread,
                           (LPVOID)this,
                           0,
                           &th_);
    CHECK(handle_) << "CreateThread";
  }
  void Join() {
    WaitForSingleObject(handle_, INFINITE);
  }
#elif defined(HAVE_PTHREAD)
  void Start() {
    pthread_create(&th_, NULL, &Thread::InvokeThread, this);
  }
  void Join() {
    pthread_join(th_, NULL);
  }
#else
# error No thread implementation.
#endif

 protected:
  virtual void Run() = 0;

 private:
  static void* InvokeThread(void* self) {
    ((Thread*)self)->Run();
    return NULL;
  }

#if defined(OS_WINDOWS) && !defined(OS_CYGWIN)
  HANDLE handle_;
  DWORD th_;
#else
  pthread_t th_;
#endif
};

static inline void SleepForMilliseconds(int t) {
#ifndef OS_WINDOWS
# if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE >= 199309L
  const struct timespec req = {0, t * 1000 * 1000};
  nanosleep(&req, NULL);
# else
  usleep(t * 1000);
# endif
#else
  Sleep(t);
#endif
}

// Add hook for operator new to ensure there are no memory allocation.

void (*g_new_hook)() = NULL;

_END_GOOGLE_NAMESPACE_

void* operator new(size_t size) {
  if (GOOGLE_NAMESPACE::g_new_hook) {
    GOOGLE_NAMESPACE::g_new_hook();
  }
  return malloc(size);
}

void* operator new[](size_t size) {
  return ::operator new(size);
}

void operator delete(void* p) {
  free(p);
}

void operator delete[](void* p) {
  ::operator delete(p);
}