summaryrefslogtreecommitdiffstats
path: root/testing/gmock/test/gmock-internal-utils_test.cc
blob: 5e4dc030a2cbc36e0f5c14ad2fc2537c860a3c65 (plain)
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
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
// Copyright 2007, 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: wan@google.com (Zhanyong Wan)

// Google Mock - a framework for writing C++ mock classes.
//
// This file tests the internal utilities.

#include <gmock/internal/gmock-internal-utils.h>
#include <stdlib.h>
#include <map>
#include <string>
#include <sstream>
#include <vector>
#include <gmock/gmock.h>
#include <gmock/internal/gmock-port.h>
#include <gtest/gtest.h>
#include <gtest/gtest-spi.h>

#if GTEST_OS_CYGWIN
#include <sys/types.h>  // For ssize_t. NOLINT
#endif

namespace testing {
namespace internal {

namespace {

using ::std::tr1::tuple;

TEST(ConvertIdentifierNameToWordsTest, WorksWhenNameContainsNoWord) {
  EXPECT_EQ("", ConvertIdentifierNameToWords(""));
  EXPECT_EQ("", ConvertIdentifierNameToWords("_"));
  EXPECT_EQ("", ConvertIdentifierNameToWords("__"));
}

TEST(ConvertIdentifierNameToWordsTest, WorksWhenNameContainsDigits) {
  EXPECT_EQ("1", ConvertIdentifierNameToWords("_1"));
  EXPECT_EQ("2", ConvertIdentifierNameToWords("2_"));
  EXPECT_EQ("34", ConvertIdentifierNameToWords("_34_"));
  EXPECT_EQ("34 56", ConvertIdentifierNameToWords("_34_56"));
}

TEST(ConvertIdentifierNameToWordsTest, WorksWhenNameContainsCamelCaseWords) {
  EXPECT_EQ("a big word", ConvertIdentifierNameToWords("ABigWord"));
  EXPECT_EQ("foo bar", ConvertIdentifierNameToWords("FooBar"));
  EXPECT_EQ("foo", ConvertIdentifierNameToWords("Foo_"));
  EXPECT_EQ("foo bar", ConvertIdentifierNameToWords("_Foo_Bar_"));
  EXPECT_EQ("foo and bar", ConvertIdentifierNameToWords("_Foo__And_Bar"));
}

TEST(ConvertIdentifierNameToWordsTest, WorksWhenNameContains_SeparatedWords) {
  EXPECT_EQ("foo bar", ConvertIdentifierNameToWords("foo_bar"));
  EXPECT_EQ("foo", ConvertIdentifierNameToWords("_foo_"));
  EXPECT_EQ("foo bar", ConvertIdentifierNameToWords("_foo_bar_"));
  EXPECT_EQ("foo and bar", ConvertIdentifierNameToWords("_foo__and_bar"));
}

TEST(ConvertIdentifierNameToWordsTest, WorksWhenNameIsMixture) {
  EXPECT_EQ("foo bar 123", ConvertIdentifierNameToWords("Foo_bar123"));
  EXPECT_EQ("chapter 11 section 1",
            ConvertIdentifierNameToWords("_Chapter11Section_1_"));
}

// Tests that CompileAssertTypesEqual compiles when the type arguments are
// equal.
TEST(CompileAssertTypesEqual, CompilesWhenTypesAreEqual) {
  CompileAssertTypesEqual<void, void>();
  CompileAssertTypesEqual<int*, int*>();
}

// Tests that RemoveReference does not affect non-reference types.
TEST(RemoveReferenceTest, DoesNotAffectNonReferenceType) {
  CompileAssertTypesEqual<int, RemoveReference<int>::type>();
  CompileAssertTypesEqual<const char, RemoveReference<const char>::type>();
}

// Tests that RemoveReference removes reference from reference types.
TEST(RemoveReferenceTest, RemovesReference) {
  CompileAssertTypesEqual<int, RemoveReference<int&>::type>();
  CompileAssertTypesEqual<const char, RemoveReference<const char&>::type>();
}

// Tests GMOCK_REMOVE_REFERENCE_.

template <typename T1, typename T2>
void TestGMockRemoveReference() {
  CompileAssertTypesEqual<T1, GMOCK_REMOVE_REFERENCE_(T2)>();
}

TEST(RemoveReferenceTest, MacroVersion) {
  TestGMockRemoveReference<int, int>();
  TestGMockRemoveReference<const char, const char&>();
}


// Tests that RemoveConst does not affect non-const types.
TEST(RemoveConstTest, DoesNotAffectNonConstType) {
  CompileAssertTypesEqual<int, RemoveConst<int>::type>();
  CompileAssertTypesEqual<char&, RemoveConst<char&>::type>();
}

// Tests that RemoveConst removes const from const types.
TEST(RemoveConstTest, RemovesConst) {
  CompileAssertTypesEqual<int, RemoveConst<const int>::type>();
}

// Tests GMOCK_REMOVE_CONST_.

template <typename T1, typename T2>
void TestGMockRemoveConst() {
  CompileAssertTypesEqual<T1, GMOCK_REMOVE_CONST_(T2)>();
}

TEST(RemoveConstTest, MacroVersion) {
  TestGMockRemoveConst<int, int>();
  TestGMockRemoveConst<double&, double&>();
  TestGMockRemoveConst<char, const char>();
}

// Tests that AddReference does not affect reference types.
TEST(AddReferenceTest, DoesNotAffectReferenceType) {
  CompileAssertTypesEqual<int&, AddReference<int&>::type>();
  CompileAssertTypesEqual<const char&, AddReference<const char&>::type>();
}

// Tests that AddReference adds reference to non-reference types.
TEST(AddReferenceTest, AddsReference) {
  CompileAssertTypesEqual<int&, AddReference<int>::type>();
  CompileAssertTypesEqual<const char&, AddReference<const char>::type>();
}

// Tests GMOCK_ADD_REFERENCE_.

template <typename T1, typename T2>
void TestGMockAddReference() {
  CompileAssertTypesEqual<T1, GMOCK_ADD_REFERENCE_(T2)>();
}

TEST(AddReferenceTest, MacroVersion) {
  TestGMockAddReference<int&, int>();
  TestGMockAddReference<const char&, const char&>();
}

// Tests GMOCK_REFERENCE_TO_CONST_.

template <typename T1, typename T2>
void TestGMockReferenceToConst() {
  CompileAssertTypesEqual<T1, GMOCK_REFERENCE_TO_CONST_(T2)>();
}

TEST(GMockReferenceToConstTest, Works) {
  TestGMockReferenceToConst<const char&, char>();
  TestGMockReferenceToConst<const int&, const int>();
  TestGMockReferenceToConst<const double&, double>();
  TestGMockReferenceToConst<const string&, const string&>();
}

TEST(PointeeOfTest, WorksForSmartPointers) {
  CompileAssertTypesEqual<const char,
      PointeeOf<internal::linked_ptr<const char> >::type>();
}

TEST(PointeeOfTest, WorksForRawPointers) {
  CompileAssertTypesEqual<int, PointeeOf<int*>::type>();
  CompileAssertTypesEqual<const char, PointeeOf<const char*>::type>();
  CompileAssertTypesEqual<void, PointeeOf<void*>::type>();
}

TEST(GetRawPointerTest, WorksForSmartPointers) {
  const char* const raw_p4 = new const char('a');  // NOLINT
  const internal::linked_ptr<const char> p4(raw_p4);
  EXPECT_EQ(raw_p4, GetRawPointer(p4));
}

TEST(GetRawPointerTest, WorksForRawPointers) {
  int* p = NULL;
  EXPECT_EQ(NULL, GetRawPointer(p));
  int n = 1;
  EXPECT_EQ(&n, GetRawPointer(&n));
}

class Base {};
class Derived : public Base {};

// Tests that ImplicitlyConvertible<T1, T2>::value is a compile-time constant.
TEST(ImplicitlyConvertibleTest, ValueIsCompileTimeConstant) {
  GMOCK_COMPILE_ASSERT_((ImplicitlyConvertible<int, int>::value), const_true);
  GMOCK_COMPILE_ASSERT_((!ImplicitlyConvertible<void*, int*>::value),
                        const_false);
}

// Tests that ImplicitlyConvertible<T1, T2>::value is true when T1 can
// be implicitly converted to T2.
TEST(ImplicitlyConvertibleTest, ValueIsTrueWhenConvertible) {
  EXPECT_TRUE((ImplicitlyConvertible<int, double>::value));
  EXPECT_TRUE((ImplicitlyConvertible<double, int>::value));
  EXPECT_TRUE((ImplicitlyConvertible<int*, void*>::value));
  EXPECT_TRUE((ImplicitlyConvertible<int*, const int*>::value));
  EXPECT_TRUE((ImplicitlyConvertible<Derived&, const Base&>::value));
  EXPECT_TRUE((ImplicitlyConvertible<const Base, Base>::value));
}

// Tests that ImplicitlyConvertible<T1, T2>::value is false when T1
// cannot be implicitly converted to T2.
TEST(ImplicitlyConvertibleTest, ValueIsFalseWhenNotConvertible) {
  EXPECT_FALSE((ImplicitlyConvertible<double, int*>::value));
  EXPECT_FALSE((ImplicitlyConvertible<void*, int*>::value));
  EXPECT_FALSE((ImplicitlyConvertible<const int*, int*>::value));
  EXPECT_FALSE((ImplicitlyConvertible<Base&, Derived&>::value));
}

// Tests KindOf<T>.

TEST(KindOfTest, Bool) {
  EXPECT_EQ(kBool, GMOCK_KIND_OF_(bool));  // NOLINT
}

TEST(KindOfTest, Integer) {
  EXPECT_EQ(kInteger, GMOCK_KIND_OF_(char));  // NOLINT
  EXPECT_EQ(kInteger, GMOCK_KIND_OF_(signed char));  // NOLINT
  EXPECT_EQ(kInteger, GMOCK_KIND_OF_(unsigned char));  // NOLINT
  EXPECT_EQ(kInteger, GMOCK_KIND_OF_(short));  // NOLINT
  EXPECT_EQ(kInteger, GMOCK_KIND_OF_(unsigned short));  // NOLINT
  EXPECT_EQ(kInteger, GMOCK_KIND_OF_(int));  // NOLINT
  EXPECT_EQ(kInteger, GMOCK_KIND_OF_(unsigned int));  // NOLINT
  EXPECT_EQ(kInteger, GMOCK_KIND_OF_(long));  // NOLINT
  EXPECT_EQ(kInteger, GMOCK_KIND_OF_(unsigned long));  // NOLINT
  EXPECT_EQ(kInteger, GMOCK_KIND_OF_(wchar_t));  // NOLINT
  EXPECT_EQ(kInteger, GMOCK_KIND_OF_(Int64));  // NOLINT
  EXPECT_EQ(kInteger, GMOCK_KIND_OF_(UInt64));  // NOLINT
  EXPECT_EQ(kInteger, GMOCK_KIND_OF_(size_t));  // NOLINT
#if GTEST_OS_LINUX || GTEST_OS_MAC || GTEST_OS_CYGWIN
  // ssize_t is not defined on Windows and possibly some other OSes.
  EXPECT_EQ(kInteger, GMOCK_KIND_OF_(ssize_t));  // NOLINT
#endif
}

TEST(KindOfTest, FloatingPoint) {
  EXPECT_EQ(kFloatingPoint, GMOCK_KIND_OF_(float));  // NOLINT
  EXPECT_EQ(kFloatingPoint, GMOCK_KIND_OF_(double));  // NOLINT
  EXPECT_EQ(kFloatingPoint, GMOCK_KIND_OF_(long double));  // NOLINT
}

TEST(KindOfTest, Other) {
  EXPECT_EQ(kOther, GMOCK_KIND_OF_(void*));  // NOLINT
  EXPECT_EQ(kOther, GMOCK_KIND_OF_(char**));  // NOLINT
  EXPECT_EQ(kOther, GMOCK_KIND_OF_(Base));  // NOLINT
}

// Tests LosslessArithmeticConvertible<T, U>.

TEST(LosslessArithmeticConvertibleTest, BoolToBool) {
  EXPECT_TRUE((LosslessArithmeticConvertible<bool, bool>::value));
}

TEST(LosslessArithmeticConvertibleTest, BoolToInteger) {
  EXPECT_TRUE((LosslessArithmeticConvertible<bool, char>::value));
  EXPECT_TRUE((LosslessArithmeticConvertible<bool, int>::value));
  EXPECT_TRUE(
      (LosslessArithmeticConvertible<bool, unsigned long>::value));  // NOLINT
}

TEST(LosslessArithmeticConvertibleTest, BoolToFloatingPoint) {
  EXPECT_TRUE((LosslessArithmeticConvertible<bool, float>::value));
  EXPECT_TRUE((LosslessArithmeticConvertible<bool, double>::value));
}

TEST(LosslessArithmeticConvertibleTest, IntegerToBool) {
  EXPECT_FALSE((LosslessArithmeticConvertible<unsigned char, bool>::value));
  EXPECT_FALSE((LosslessArithmeticConvertible<int, bool>::value));
}

TEST(LosslessArithmeticConvertibleTest, IntegerToInteger) {
  // Unsigned => larger signed is fine.
  EXPECT_TRUE((LosslessArithmeticConvertible<unsigned char, int>::value));

  // Unsigned => larger unsigned is fine.
  EXPECT_TRUE(
      (LosslessArithmeticConvertible<unsigned short, UInt64>::value)); // NOLINT

  // Signed => unsigned is not fine.
  EXPECT_FALSE((LosslessArithmeticConvertible<short, UInt64>::value)); // NOLINT
  EXPECT_FALSE((LosslessArithmeticConvertible<
      signed char, unsigned int>::value));  // NOLINT

  // Same size and same signedness: fine too.
  EXPECT_TRUE((LosslessArithmeticConvertible<
               unsigned char, unsigned char>::value));
  EXPECT_TRUE((LosslessArithmeticConvertible<int, int>::value));
  EXPECT_TRUE((LosslessArithmeticConvertible<wchar_t, wchar_t>::value));
  EXPECT_TRUE((LosslessArithmeticConvertible<
               unsigned long, unsigned long>::value));  // NOLINT

  // Same size, different signedness: not fine.
  EXPECT_FALSE((LosslessArithmeticConvertible<
                unsigned char, signed char>::value));
  EXPECT_FALSE((LosslessArithmeticConvertible<int, unsigned int>::value));
  EXPECT_FALSE((LosslessArithmeticConvertible<UInt64, Int64>::value));

  // Larger size => smaller size is not fine.
  EXPECT_FALSE((LosslessArithmeticConvertible<long, char>::value));  // NOLINT
  EXPECT_FALSE((LosslessArithmeticConvertible<int, signed char>::value));
  EXPECT_FALSE((LosslessArithmeticConvertible<Int64, unsigned int>::value));
}

TEST(LosslessArithmeticConvertibleTest, IntegerToFloatingPoint) {
  // Integers cannot be losslessly converted to floating-points, as
  // the format of the latter is implementation-defined.
  EXPECT_FALSE((LosslessArithmeticConvertible<char, float>::value));
  EXPECT_FALSE((LosslessArithmeticConvertible<int, double>::value));
  EXPECT_FALSE((LosslessArithmeticConvertible<
                short, long double>::value));  // NOLINT
}

TEST(LosslessArithmeticConvertibleTest, FloatingPointToBool) {
  EXPECT_FALSE((LosslessArithmeticConvertible<float, bool>::value));
  EXPECT_FALSE((LosslessArithmeticConvertible<double, bool>::value));
}

TEST(LosslessArithmeticConvertibleTest, FloatingPointToInteger) {
  EXPECT_FALSE((LosslessArithmeticConvertible<float, long>::value));  // NOLINT
  EXPECT_FALSE((LosslessArithmeticConvertible<double, Int64>::value));
  EXPECT_FALSE((LosslessArithmeticConvertible<long double, int>::value));
}

TEST(LosslessArithmeticConvertibleTest, FloatingPointToFloatingPoint) {
  // Smaller size => larger size is fine.
  EXPECT_TRUE((LosslessArithmeticConvertible<float, double>::value));
  EXPECT_TRUE((LosslessArithmeticConvertible<float, long double>::value));
  EXPECT_TRUE((LosslessArithmeticConvertible<double, long double>::value));

  // Same size: fine.
  EXPECT_TRUE((LosslessArithmeticConvertible<float, float>::value));
  EXPECT_TRUE((LosslessArithmeticConvertible<double, double>::value));

  // Larger size => smaller size is not fine.
  EXPECT_FALSE((LosslessArithmeticConvertible<double, float>::value));
  if (sizeof(double) == sizeof(long double)) {  // NOLINT
    // In some implementations (e.g. MSVC), double and long double
    // have the same size.
    EXPECT_TRUE((LosslessArithmeticConvertible<long double, double>::value));
  } else {
    EXPECT_FALSE((LosslessArithmeticConvertible<long double, double>::value));
  }
}

// Tests that IsAProtocolMessage<T>::value is a compile-time constant.
TEST(IsAProtocolMessageTest, ValueIsCompileTimeConstant) {
  GMOCK_COMPILE_ASSERT_(IsAProtocolMessage<ProtocolMessage>::value, const_true);
  GMOCK_COMPILE_ASSERT_(!IsAProtocolMessage<int>::value, const_false);
}

// Tests that IsAProtocolMessage<T>::value is true when T is
// ProtocolMessage or a sub-class of it.
TEST(IsAProtocolMessageTest, ValueIsTrueWhenTypeIsAProtocolMessage) {
  EXPECT_TRUE(IsAProtocolMessage<ProtocolMessage>::value);
#if GMOCK_HAS_PROTOBUF_
  EXPECT_TRUE(IsAProtocolMessage<const TestMessage>::value);
#endif  // GMOCK_HAS_PROTOBUF_
}

// Tests that IsAProtocolMessage<T>::value is false when T is neither
// ProtocolMessage nor a sub-class of it.
TEST(IsAProtocolMessageTest, ValueIsFalseWhenTypeIsNotAProtocolMessage) {
  EXPECT_FALSE(IsAProtocolMessage<int>::value);
  EXPECT_FALSE(IsAProtocolMessage<const Base>::value);
}

// Tests IsContainerTest.

class NonContainer {};

TEST(IsContainerTestTest, WorksForNonContainer) {
  EXPECT_EQ(sizeof(IsNotContainer), sizeof(IsContainerTest<int>(0)));
  EXPECT_EQ(sizeof(IsNotContainer), sizeof(IsContainerTest<char[5]>(0)));
  EXPECT_EQ(sizeof(IsNotContainer), sizeof(IsContainerTest<NonContainer>(0)));
}

TEST(IsContainerTestTest, WorksForContainer) {
  EXPECT_EQ(sizeof(IsContainer),
            sizeof(IsContainerTest<std::vector<bool> >(0)));
  EXPECT_EQ(sizeof(IsContainer),
            sizeof(IsContainerTest<std::map<int, double> >(0)));
}

// Tests the TupleMatches() template function.

TEST(TupleMatchesTest, WorksForSize0) {
  tuple<> matchers;
  tuple<> values;

  EXPECT_TRUE(TupleMatches(matchers, values));
}

TEST(TupleMatchesTest, WorksForSize1) {
  tuple<Matcher<int> > matchers(Eq(1));
  tuple<int> values1(1),
      values2(2);

  EXPECT_TRUE(TupleMatches(matchers, values1));
  EXPECT_FALSE(TupleMatches(matchers, values2));
}

TEST(TupleMatchesTest, WorksForSize2) {
  tuple<Matcher<int>, Matcher<char> > matchers(Eq(1), Eq('a'));
  tuple<int, char> values1(1, 'a'),
      values2(1, 'b'),
      values3(2, 'a'),
      values4(2, 'b');

  EXPECT_TRUE(TupleMatches(matchers, values1));
  EXPECT_FALSE(TupleMatches(matchers, values2));
  EXPECT_FALSE(TupleMatches(matchers, values3));
  EXPECT_FALSE(TupleMatches(matchers, values4));
}

TEST(TupleMatchesTest, WorksForSize5) {
  tuple<Matcher<int>, Matcher<char>, Matcher<bool>, Matcher<long>,  // NOLINT
      Matcher<string> >
      matchers(Eq(1), Eq('a'), Eq(true), Eq(2L), Eq("hi"));
  tuple<int, char, bool, long, string>  // NOLINT
      values1(1, 'a', true, 2L, "hi"),
      values2(1, 'a', true, 2L, "hello"),
      values3(2, 'a', true, 2L, "hi");

  EXPECT_TRUE(TupleMatches(matchers, values1));
  EXPECT_FALSE(TupleMatches(matchers, values2));
  EXPECT_FALSE(TupleMatches(matchers, values3));
}

// Tests that Assert(true, ...) succeeds.
TEST(AssertTest, SucceedsOnTrue) {
  Assert(true, __FILE__, __LINE__, "This should succeed.");
  Assert(true, __FILE__, __LINE__);  // This should succeed too.
}

#if GTEST_HAS_DEATH_TEST

// Tests that Assert(false, ...) generates a fatal failure.
TEST(AssertTest, FailsFatallyOnFalse) {
  EXPECT_DEATH({  // NOLINT
    Assert(false, __FILE__, __LINE__, "This should fail.");
  }, "");

  EXPECT_DEATH({  // NOLINT
    Assert(false, __FILE__, __LINE__);
  }, "");
}

#endif  // GTEST_HAS_DEATH_TEST

// Tests that Expect(true, ...) succeeds.
TEST(ExpectTest, SucceedsOnTrue) {
  Expect(true, __FILE__, __LINE__, "This should succeed.");
  Expect(true, __FILE__, __LINE__);  // This should succeed too.
}

// Tests that Expect(false, ...) generates a non-fatal failure.
TEST(ExpectTest, FailsNonfatallyOnFalse) {
  EXPECT_NONFATAL_FAILURE({  // NOLINT
    Expect(false, __FILE__, __LINE__, "This should fail.");
  }, "This should fail");

  EXPECT_NONFATAL_FAILURE({  // NOLINT
    Expect(false, __FILE__, __LINE__);
  }, "Expectation failed");
}

// TODO(wan@google.com): find a way to re-enable these tests.
#if 0

// Tests the Log() function.

// Verifies that Log() behaves correctly for the given verbosity level
// and log severity.
void TestLogWithSeverity(const string& verbosity, LogSeverity severity,
                         bool should_print) {
  const string old_flag = GMOCK_FLAG(verbose);
  GMOCK_FLAG(verbose) = verbosity;
  CaptureTestStdout();
  Log(severity, "Test log.\n", 0);
  if (should_print) {
    EXPECT_PRED2(RE::FullMatch,
                 GetCapturedTestStdout(),
                 severity == WARNING ?
                 "\nGMOCK WARNING:\nTest log\\.\nStack trace:\n[\\s\\S]*" :
                 "\nTest log\\.\nStack trace:\n[\\s\\S]*");
  } else {
    EXPECT_EQ("", GetCapturedTestStdout());
  }
  GMOCK_FLAG(verbose) = old_flag;
}

// Tests that when the stack_frames_to_skip parameter is negative,
// Log() doesn't include the stack trace in the output.
TEST(LogTest, NoStackTraceWhenStackFramesToSkipIsNegative) {
  GMOCK_FLAG(verbose) = kInfoVerbosity;
  CaptureTestStdout();
  Log(INFO, "Test log.\n", -1);
  EXPECT_EQ("\nTest log.\n", GetCapturedTestStdout());
}

// Tests that in opt mode, a positive stack_frames_to_skip argument is
// treated as 0.
TEST(LogTest, NoSkippingStackFrameInOptMode) {
  CaptureTestStdout();
  Log(WARNING, "Test log.\n", 100);
  const string log = GetCapturedTestStdout();
#ifdef NDEBUG
  // In opt mode, no stack frame should be skipped.
  EXPECT_THAT(log, ContainsRegex("\nGMOCK WARNING:\n"
                                 "Test log\\.\n"
                                 "Stack trace:\n"
                                 ".+"));
#else
  // In dbg mode, the stack frames should be skipped.
  EXPECT_EQ("\nGMOCK WARNING:\n"
            "Test log.\n"
            "Stack trace:\n", log);
#endif  // NDEBUG
}

// Tests that all logs are printed when the value of the
// --gmock_verbose flag is "info".
TEST(LogTest, AllLogsArePrintedWhenVerbosityIsInfo) {
  TestLogWithSeverity(kInfoVerbosity, INFO, true);
  TestLogWithSeverity(kInfoVerbosity, WARNING, true);
}

// Tests that only warnings are printed when the value of the
// --gmock_verbose flag is "warning".
TEST(LogTest, OnlyWarningsArePrintedWhenVerbosityIsWarning) {
  TestLogWithSeverity(kWarningVerbosity, INFO, false);
  TestLogWithSeverity(kWarningVerbosity, WARNING, true);
}

// Tests that no logs are printed when the value of the
// --gmock_verbose flag is "error".
TEST(LogTest, NoLogsArePrintedWhenVerbosityIsError) {
  TestLogWithSeverity(kErrorVerbosity, INFO, false);
  TestLogWithSeverity(kErrorVerbosity, WARNING, false);
}

// Tests that only warnings are printed when the value of the
// --gmock_verbose flag is invalid.
TEST(LogTest, OnlyWarningsArePrintedWhenVerbosityIsInvalid) {
  TestLogWithSeverity("invalid", INFO, false);
  TestLogWithSeverity("invalid", WARNING, true);
}

#endif  // 0

TEST(TypeTraitsTest, true_type) {
  EXPECT_TRUE(true_type::value);
}

TEST(TypeTraitsTest, false_type) {
  EXPECT_FALSE(false_type::value);
}

TEST(TypeTraitsTest, is_reference) {
  EXPECT_FALSE(is_reference<int>::value);
  EXPECT_FALSE(is_reference<char*>::value);
  EXPECT_TRUE(is_reference<const int&>::value);
}

TEST(TypeTraitsTest, is_pointer) {
  EXPECT_FALSE(is_pointer<int>::value);
  EXPECT_FALSE(is_pointer<char&>::value);
  EXPECT_TRUE(is_pointer<const int*>::value);
}

TEST(TypeTraitsTest, type_equals) {
  EXPECT_FALSE((type_equals<int, const int>::value));
  EXPECT_FALSE((type_equals<int, int&>::value));
  EXPECT_FALSE((type_equals<int, double>::value));
  EXPECT_TRUE((type_equals<char, char>::value));
}

TEST(TypeTraitsTest, remove_reference) {
  EXPECT_TRUE((type_equals<char, remove_reference<char&>::type>::value));
  EXPECT_TRUE((type_equals<const int,
               remove_reference<const int&>::type>::value));
  EXPECT_TRUE((type_equals<int, remove_reference<int>::type>::value));
  EXPECT_TRUE((type_equals<double*, remove_reference<double*>::type>::value));
}

// TODO(wan@google.com): find a way to re-enable these tests.
#if 0

// Verifies that Log() behaves correctly for the given verbosity level
// and log severity.
string GrabOutput(void(*logger)(), const char* verbosity) {
  const string saved_flag = GMOCK_FLAG(verbose);
  GMOCK_FLAG(verbose) = verbosity;
  CaptureTestStdout();
  logger();
  GMOCK_FLAG(verbose) = saved_flag;
  return GetCapturedTestStdout();
}

class DummyMock {
 public:
  MOCK_METHOD0(TestMethod, void());
  MOCK_METHOD1(TestMethodArg, void(int dummy));
};

void ExpectCallLogger() {
  DummyMock mock;
  EXPECT_CALL(mock, TestMethod());
  mock.TestMethod();
};

// Verifies that EXPECT_CALL logs if the --gmock_verbose flag is set to "info".
TEST(ExpectCallTest, LogsWhenVerbosityIsInfo) {
  EXPECT_THAT(GrabOutput(ExpectCallLogger, kInfoVerbosity),
              HasSubstr("EXPECT_CALL(mock, TestMethod())"));
}

// Verifies that EXPECT_CALL doesn't log
// if the --gmock_verbose flag is set to "warning".
TEST(ExpectCallTest, DoesNotLogWhenVerbosityIsWarning) {
  EXPECT_EQ("", GrabOutput(ExpectCallLogger, kWarningVerbosity));
}

// Verifies that EXPECT_CALL doesn't log
// if the --gmock_verbose flag is set to "error".
TEST(ExpectCallTest,  DoesNotLogWhenVerbosityIsError) {
  EXPECT_EQ("", GrabOutput(ExpectCallLogger, kErrorVerbosity));
}

void OnCallLogger() {
  DummyMock mock;
  ON_CALL(mock, TestMethod());
};

// Verifies that ON_CALL logs if the --gmock_verbose flag is set to "info".
TEST(OnCallTest, LogsWhenVerbosityIsInfo) {
  EXPECT_THAT(GrabOutput(OnCallLogger, kInfoVerbosity),
              HasSubstr("ON_CALL(mock, TestMethod())"));
}

// Verifies that ON_CALL doesn't log
// if the --gmock_verbose flag is set to "warning".
TEST(OnCallTest, DoesNotLogWhenVerbosityIsWarning) {
  EXPECT_EQ("", GrabOutput(OnCallLogger, kWarningVerbosity));
}

// Verifies that ON_CALL doesn't log if
// the --gmock_verbose flag is set to "error".
TEST(OnCallTest, DoesNotLogWhenVerbosityIsError) {
  EXPECT_EQ("", GrabOutput(OnCallLogger, kErrorVerbosity));
}

void OnCallAnyArgumentLogger() {
  DummyMock mock;
  ON_CALL(mock, TestMethodArg(_));
}

// Verifies that ON_CALL prints provided _ argument.
TEST(OnCallTest, LogsAnythingArgument) {
  EXPECT_THAT(GrabOutput(OnCallAnyArgumentLogger, kInfoVerbosity),
              HasSubstr("ON_CALL(mock, TestMethodArg(_)"));
}

#endif  // 0

}  // namespace
}  // namespace internal
}  // namespace testing