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
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
|
// Copyright 2008, 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.
//
// This file tests the internal cross-platform support utilities.
#include <stdio.h>
#include "gtest/internal/gtest-port.h"
#ifdef GTEST_OS_MAC
#include <time.h>
#endif // GTEST_OS_MAC
#include <chrono> // NOLINT
#include <list>
#include <memory>
#include <string>
#include <thread> // NOLINT
#include <utility> // For std::pair and std::make_pair.
#include <vector>
#include "gtest/gtest-spi.h"
#include "gtest/gtest.h"
#include "src/gtest-internal-inl.h"
using std::make_pair;
using std::pair;
namespace testing {
namespace internal {
TEST(IsXDigitTest, WorksForNarrowAscii) {
EXPECT_TRUE(IsXDigit('0'));
EXPECT_TRUE(IsXDigit('9'));
EXPECT_TRUE(IsXDigit('A'));
EXPECT_TRUE(IsXDigit('F'));
EXPECT_TRUE(IsXDigit('a'));
EXPECT_TRUE(IsXDigit('f'));
EXPECT_FALSE(IsXDigit('-'));
EXPECT_FALSE(IsXDigit('g'));
EXPECT_FALSE(IsXDigit('G'));
}
TEST(IsXDigitTest, ReturnsFalseForNarrowNonAscii) {
EXPECT_FALSE(IsXDigit(static_cast<char>('\x80')));
EXPECT_FALSE(IsXDigit(static_cast<char>('0' | '\x80')));
}
TEST(IsXDigitTest, WorksForWideAscii) {
EXPECT_TRUE(IsXDigit(L'0'));
EXPECT_TRUE(IsXDigit(L'9'));
EXPECT_TRUE(IsXDigit(L'A'));
EXPECT_TRUE(IsXDigit(L'F'));
EXPECT_TRUE(IsXDigit(L'a'));
EXPECT_TRUE(IsXDigit(L'f'));
EXPECT_FALSE(IsXDigit(L'-'));
EXPECT_FALSE(IsXDigit(L'g'));
EXPECT_FALSE(IsXDigit(L'G'));
}
TEST(IsXDigitTest, ReturnsFalseForWideNonAscii) {
EXPECT_FALSE(IsXDigit(static_cast<wchar_t>(0x80)));
EXPECT_FALSE(IsXDigit(static_cast<wchar_t>(L'0' | 0x80)));
EXPECT_FALSE(IsXDigit(static_cast<wchar_t>(L'0' | 0x100)));
}
class Base {
public:
Base() : member_(0) {}
explicit Base(int n) : member_(n) {}
Base(const Base&) = default;
Base& operator=(const Base&) = default;
virtual ~Base() = default;
int member() { return member_; }
private:
int member_;
};
class Derived : public Base {
public:
explicit Derived(int n) : Base(n) {}
};
TEST(ImplicitCastTest, ConvertsPointers) {
Derived derived(0);
EXPECT_TRUE(&derived == ::testing::internal::ImplicitCast_<Base*>(&derived));
}
TEST(ImplicitCastTest, CanUseInheritance) {
Derived derived(1);
Base base = ::testing::internal::ImplicitCast_<Base>(derived);
EXPECT_EQ(derived.member(), base.member());
}
class Castable {
public:
explicit Castable(bool* converted) : converted_(converted) {}
operator Base() {
*converted_ = true;
return Base();
}
private:
bool* converted_;
};
TEST(ImplicitCastTest, CanUseNonConstCastOperator) {
bool converted = false;
Castable castable(&converted);
Base base = ::testing::internal::ImplicitCast_<Base>(castable);
EXPECT_TRUE(converted);
}
class ConstCastable {
public:
explicit ConstCastable(bool* converted) : converted_(converted) {}
operator Base() const {
*converted_ = true;
return Base();
}
private:
bool* converted_;
};
TEST(ImplicitCastTest, CanUseConstCastOperatorOnConstValues) {
bool converted = false;
const ConstCastable const_castable(&converted);
Base base = ::testing::internal::ImplicitCast_<Base>(const_castable);
EXPECT_TRUE(converted);
}
class ConstAndNonConstCastable {
public:
ConstAndNonConstCastable(bool* converted, bool* const_converted)
: converted_(converted), const_converted_(const_converted) {}
operator Base() {
*converted_ = true;
return Base();
}
operator Base() const {
*const_converted_ = true;
return Base();
}
private:
bool* converted_;
bool* const_converted_;
};
TEST(ImplicitCastTest, CanSelectBetweenConstAndNonConstCasrAppropriately) {
bool converted = false;
bool const_converted = false;
ConstAndNonConstCastable castable(&converted, &const_converted);
Base base = ::testing::internal::ImplicitCast_<Base>(castable);
EXPECT_TRUE(converted);
EXPECT_FALSE(const_converted);
converted = false;
const_converted = false;
const ConstAndNonConstCastable const_castable(&converted, &const_converted);
base = ::testing::internal::ImplicitCast_<Base>(const_castable);
EXPECT_FALSE(converted);
EXPECT_TRUE(const_converted);
}
class To {
public:
To(bool* converted) { *converted = true; } // NOLINT
};
TEST(ImplicitCastTest, CanUseImplicitConstructor) {
bool converted = false;
To to = ::testing::internal::ImplicitCast_<To>(&converted);
(void)to;
EXPECT_TRUE(converted);
}
// The following code intentionally tests a suboptimal syntax.
#ifdef __GNUC__
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wdangling-else"
#pragma GCC diagnostic ignored "-Wempty-body"
#pragma GCC diagnostic ignored "-Wpragmas"
#endif
TEST(GtestCheckSyntaxTest, BehavesLikeASingleStatement) {
if (AlwaysFalse())
GTEST_CHECK_(false) << "This should never be executed; "
"It's a compilation test only.";
if (AlwaysTrue())
GTEST_CHECK_(true);
else
; // NOLINT
if (AlwaysFalse())
; // NOLINT
else
GTEST_CHECK_(true) << "";
}
#ifdef __GNUC__
#pragma GCC diagnostic pop
#endif
TEST(GtestCheckSyntaxTest, WorksWithSwitch) {
switch (0) {
case 1:
break;
default:
GTEST_CHECK_(true);
}
switch (0)
case 0:
GTEST_CHECK_(true) << "Check failed in switch case";
}
// Verifies behavior of FormatFileLocation.
TEST(FormatFileLocationTest, FormatsFileLocation) {
EXPECT_PRED_FORMAT2(IsSubstring, "foo.cc", FormatFileLocation("foo.cc", 42));
EXPECT_PRED_FORMAT2(IsSubstring, "42", FormatFileLocation("foo.cc", 42));
}
TEST(FormatFileLocationTest, FormatsUnknownFile) {
EXPECT_PRED_FORMAT2(IsSubstring, "unknown file",
FormatFileLocation(nullptr, 42));
EXPECT_PRED_FORMAT2(IsSubstring, "42", FormatFileLocation(nullptr, 42));
}
TEST(FormatFileLocationTest, FormatsUknownLine) {
EXPECT_EQ("foo.cc:", FormatFileLocation("foo.cc", -1));
}
TEST(FormatFileLocationTest, FormatsUknownFileAndLine) {
EXPECT_EQ("unknown file:", FormatFileLocation(nullptr, -1));
}
// Verifies behavior of FormatCompilerIndependentFileLocation.
TEST(FormatCompilerIndependentFileLocationTest, FormatsFileLocation) {
EXPECT_EQ("foo.cc:42", FormatCompilerIndependentFileLocation("foo.cc", 42));
}
TEST(FormatCompilerIndependentFileLocationTest, FormatsUknownFile) {
EXPECT_EQ("unknown file:42",
FormatCompilerIndependentFileLocation(nullptr, 42));
}
TEST(FormatCompilerIndependentFileLocationTest, FormatsUknownLine) {
EXPECT_EQ("foo.cc", FormatCompilerIndependentFileLocation("foo.cc", -1));
}
TEST(FormatCompilerIndependentFileLocationTest, FormatsUknownFileAndLine) {
EXPECT_EQ("unknown file", FormatCompilerIndependentFileLocation(nullptr, -1));
}
#if defined(GTEST_OS_LINUX) || defined(GTEST_OS_MAC) || \
defined(GTEST_OS_QNX) || defined(GTEST_OS_FUCHSIA) || \
defined(GTEST_OS_DRAGONFLY) || defined(GTEST_OS_FREEBSD) || \
defined(GTEST_OS_GNU_KFREEBSD) || defined(GTEST_OS_NETBSD) || \
defined(GTEST_OS_OPENBSD) || defined(GTEST_OS_GNU_HURD)
void* ThreadFunc(void* data) {
internal::Mutex* mutex = static_cast<internal::Mutex*>(data);
mutex->Lock();
mutex->Unlock();
return nullptr;
}
TEST(GetThreadCountTest, ReturnsCorrectValue) {
size_t starting_count;
size_t thread_count_after_create;
size_t thread_count_after_join;
// We can't guarantee that no other thread was created or destroyed between
// any two calls to GetThreadCount(). We make multiple attempts, hoping that
// background noise is not constant and we would see the "right" values at
// some point.
for (int attempt = 0; attempt < 20; ++attempt) {
starting_count = GetThreadCount();
pthread_t thread_id;
internal::Mutex mutex;
{
internal::MutexLock lock(&mutex);
pthread_attr_t attr;
ASSERT_EQ(0, pthread_attr_init(&attr));
ASSERT_EQ(0, pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_JOINABLE));
const int status = pthread_create(&thread_id, &attr, &ThreadFunc, &mutex);
ASSERT_EQ(0, pthread_attr_destroy(&attr));
ASSERT_EQ(0, status);
}
thread_count_after_create = GetThreadCount();
void* dummy;
ASSERT_EQ(0, pthread_join(thread_id, &dummy));
// Join before we decide whether we need to retry the test. Retry if an
// arbitrary other thread was created or destroyed in the meantime.
if (thread_count_after_create != starting_count + 1) continue;
// The OS may not immediately report the updated thread count after
// joining a thread, causing flakiness in this test. To counter that, we
// wait for up to .5 seconds for the OS to report the correct value.
bool thread_count_matches = false;
for (int i = 0; i < 5; ++i) {
thread_count_after_join = GetThreadCount();
if (thread_count_after_join == starting_count) {
thread_count_matches = true;
break;
}
std::this_thread::sleep_for(std::chrono::milliseconds(100));
}
// Retry if an arbitrary other thread was created or destroyed.
if (!thread_count_matches) continue;
break;
}
EXPECT_EQ(thread_count_after_create, starting_count + 1);
EXPECT_EQ(thread_count_after_join, starting_count);
}
#else
TEST(GetThreadCountTest, ReturnsZeroWhenUnableToCountThreads) {
EXPECT_EQ(0U, GetThreadCount());
}
#endif // GTEST_OS_LINUX || GTEST_OS_MAC || GTEST_OS_QNX || GTEST_OS_FUCHSIA
TEST(GtestCheckDeathTest, DiesWithCorrectOutputOnFailure) {
const bool a_false_condition = false;
const char regex[] =
#ifdef _MSC_VER
"googletest-port-test\\.cc\\(\\d+\\):"
#elif defined(GTEST_USES_POSIX_RE)
"googletest-port-test\\.cc:[0-9]+"
#else
"googletest-port-test\\.cc:\\d+"
#endif // _MSC_VER
".*a_false_condition.*Extra info.*";
EXPECT_DEATH_IF_SUPPORTED(GTEST_CHECK_(a_false_condition) << "Extra info",
regex);
}
#ifdef GTEST_HAS_DEATH_TEST
TEST(GtestCheckDeathTest, LivesSilentlyOnSuccess) {
EXPECT_EXIT(
{
GTEST_CHECK_(true) << "Extra info";
::std::cerr << "Success\n";
exit(0);
},
::testing::ExitedWithCode(0), "Success");
}
#endif // GTEST_HAS_DEATH_TEST
// Verifies that Google Test choose regular expression engine appropriate to
// the platform. The test will produce compiler errors in case of failure.
// For simplicity, we only cover the most important platforms here.
TEST(RegexEngineSelectionTest, SelectsCorrectRegexEngine) {
#ifdef GTEST_HAS_ABSL
EXPECT_TRUE(GTEST_USES_RE2);
#elif GTEST_HAS_POSIX_RE
EXPECT_TRUE(GTEST_USES_POSIX_RE);
#else
EXPECT_TRUE(GTEST_USES_SIMPLE_RE);
#endif
}
#ifdef GTEST_USES_POSIX_RE
template <typename Str>
class RETest : public ::testing::Test {};
// Defines StringTypes as the list of all string types that class RE
// supports.
typedef testing::Types< ::std::string, const char*> StringTypes;
TYPED_TEST_SUITE(RETest, StringTypes);
// Tests RE's implicit constructors.
TYPED_TEST(RETest, ImplicitConstructorWorks) {
const RE empty(TypeParam(""));
EXPECT_STREQ("", empty.pattern());
const RE simple(TypeParam("hello"));
EXPECT_STREQ("hello", simple.pattern());
const RE normal(TypeParam(".*(\\w+)"));
EXPECT_STREQ(".*(\\w+)", normal.pattern());
}
// Tests that RE's constructors reject invalid regular expressions.
TYPED_TEST(RETest, RejectsInvalidRegex) {
EXPECT_NONFATAL_FAILURE(
{ const RE invalid(TypeParam("?")); },
"\"?\" is not a valid POSIX Extended regular expression.");
}
// Tests RE::FullMatch().
TYPED_TEST(RETest, FullMatchWorks) {
const RE empty(TypeParam(""));
EXPECT_TRUE(RE::FullMatch(TypeParam(""), empty));
EXPECT_FALSE(RE::FullMatch(TypeParam("a"), empty));
const RE re(TypeParam("a.*z"));
EXPECT_TRUE(RE::FullMatch(TypeParam("az"), re));
EXPECT_TRUE(RE::FullMatch(TypeParam("axyz"), re));
EXPECT_FALSE(RE::FullMatch(TypeParam("baz"), re));
EXPECT_FALSE(RE::FullMatch(TypeParam("azy"), re));
}
// Tests RE::PartialMatch().
TYPED_TEST(RETest, PartialMatchWorks) {
const RE empty(TypeParam(""));
EXPECT_TRUE(RE::PartialMatch(TypeParam(""), empty));
EXPECT_TRUE(RE::PartialMatch(TypeParam("a"), empty));
const RE re(TypeParam("a.*z"));
EXPECT_TRUE(RE::PartialMatch(TypeParam("az"), re));
EXPECT_TRUE(RE::PartialMatch(TypeParam("axyz"), re));
EXPECT_TRUE(RE::PartialMatch(TypeParam("baz"), re));
EXPECT_TRUE(RE::PartialMatch(TypeParam("azy"), re));
EXPECT_FALSE(RE::PartialMatch(TypeParam("zza"), re));
}
#elif defined(GTEST_USES_SIMPLE_RE)
TEST(IsInSetTest, NulCharIsNotInAnySet) {
EXPECT_FALSE(IsInSet('\0', ""));
EXPECT_FALSE(IsInSet('\0', "\0"));
EXPECT_FALSE(IsInSet('\0', "a"));
}
TEST(IsInSetTest, WorksForNonNulChars) {
EXPECT_FALSE(IsInSet('a', "Ab"));
EXPECT_FALSE(IsInSet('c', ""));
EXPECT_TRUE(IsInSet('b', "bcd"));
EXPECT_TRUE(IsInSet('b', "ab"));
}
TEST(IsAsciiDigitTest, IsFalseForNonDigit) {
EXPECT_FALSE(IsAsciiDigit('\0'));
EXPECT_FALSE(IsAsciiDigit(' '));
EXPECT_FALSE(IsAsciiDigit('+'));
EXPECT_FALSE(IsAsciiDigit('-'));
EXPECT_FALSE(IsAsciiDigit('.'));
EXPECT_FALSE(IsAsciiDigit('a'));
}
TEST(IsAsciiDigitTest, IsTrueForDigit) {
EXPECT_TRUE(IsAsciiDigit('0'));
EXPECT_TRUE(IsAsciiDigit('1'));
EXPECT_TRUE(IsAsciiDigit('5'));
EXPECT_TRUE(IsAsciiDigit('9'));
}
TEST(IsAsciiPunctTest, IsFalseForNonPunct) {
EXPECT_FALSE(IsAsciiPunct('\0'));
EXPECT_FALSE(IsAsciiPunct(' '));
EXPECT_FALSE(IsAsciiPunct('\n'));
EXPECT_FALSE(IsAsciiPunct('a'));
EXPECT_FALSE(IsAsciiPunct('0'));
}
TEST(IsAsciiPunctTest, IsTrueForPunct) {
for (const char* p = "^-!\"#$%&'()*+,./:;<=>?@[\\]_`{|}~"; *p; p++) {
EXPECT_PRED1(IsAsciiPunct, *p);
}
}
TEST(IsRepeatTest, IsFalseForNonRepeatChar) {
EXPECT_FALSE(IsRepeat('\0'));
EXPECT_FALSE(IsRepeat(' '));
EXPECT_FALSE(IsRepeat('a'));
EXPECT_FALSE(IsRepeat('1'));
EXPECT_FALSE(IsRepeat('-'));
}
TEST(IsRepeatTest, IsTrueForRepeatChar) {
EXPECT_TRUE(IsRepeat('?'));
EXPECT_TRUE(IsRepeat('*'));
EXPECT_TRUE(IsRepeat('+'));
}
TEST(IsAsciiWhiteSpaceTest, IsFalseForNonWhiteSpace) {
EXPECT_FALSE(IsAsciiWhiteSpace('\0'));
EXPECT_FALSE(IsAsciiWhiteSpace('a'));
EXPECT_FALSE(IsAsciiWhiteSpace('1'));
EXPECT_FALSE(IsAsciiWhiteSpace('+'));
EXPECT_FALSE(IsAsciiWhiteSpace('_'));
}
TEST(IsAsciiWhiteSpaceTest, IsTrueForWhiteSpace) {
EXPECT_TRUE(IsAsciiWhiteSpace(' '));
EXPECT_TRUE(IsAsciiWhiteSpace('\n'));
EXPECT_TRUE(IsAsciiWhiteSpace('\r'));
EXPECT_TRUE(IsAsciiWhiteSpace('\t'));
EXPECT_TRUE(IsAsciiWhiteSpace('\v'));
EXPECT_TRUE(IsAsciiWhiteSpace('\f'));
}
TEST(IsAsciiWordCharTest, IsFalseForNonWordChar) {
EXPECT_FALSE(IsAsciiWordChar('\0'));
EXPECT_FALSE(IsAsciiWordChar('+'));
EXPECT_FALSE(IsAsciiWordChar('.'));
EXPECT_FALSE(IsAsciiWordChar(' '));
EXPECT_FALSE(IsAsciiWordChar('\n'));
}
TEST(IsAsciiWordCharTest, IsTrueForLetter) {
EXPECT_TRUE(IsAsciiWordChar('a'));
EXPECT_TRUE(IsAsciiWordChar('b'));
EXPECT_TRUE(IsAsciiWordChar('A'));
EXPECT_TRUE(IsAsciiWordChar('Z'));
}
TEST(IsAsciiWordCharTest, IsTrueForDigit) {
EXPECT_TRUE(IsAsciiWordChar('0'));
EXPECT_TRUE(IsAsciiWordChar('1'));
EXPECT_TRUE(IsAsciiWordChar('7'));
EXPECT_TRUE(IsAsciiWordChar('9'));
}
TEST(IsAsciiWordCharTest, IsTrueForUnderscore) {
EXPECT_TRUE(IsAsciiWordChar('_'));
}
TEST(IsValidEscapeTest, IsFalseForNonPrintable) {
EXPECT_FALSE(IsValidEscape('\0'));
EXPECT_FALSE(IsValidEscape('\007'));
}
TEST(IsValidEscapeTest, IsFalseForDigit) {
EXPECT_FALSE(IsValidEscape('0'));
EXPECT_FALSE(IsValidEscape('9'));
}
TEST(IsValidEscapeTest, IsFalseForWhiteSpace) {
EXPECT_FALSE(IsValidEscape(' '));
EXPECT_FALSE(IsValidEscape('\n'));
}
TEST(IsValidEscapeTest, IsFalseForSomeLetter) {
EXPECT_FALSE(IsValidEscape('a'));
EXPECT_FALSE(IsValidEscape('Z'));
}
TEST(IsValidEscapeTest, IsTrueForPunct) {
EXPECT_TRUE(IsValidEscape('.'));
EXPECT_TRUE(IsValidEscape('-'));
EXPECT_TRUE(IsValidEscape('^'));
EXPECT_TRUE(IsValidEscape('$'));
EXPECT_TRUE(IsValidEscape('('));
EXPECT_TRUE(IsValidEscape(']'));
EXPECT_TRUE(IsValidEscape('{'));
EXPECT_TRUE(IsValidEscape('|'));
}
TEST(IsValidEscapeTest, IsTrueForSomeLetter) {
EXPECT_TRUE(IsValidEscape('d'));
EXPECT_TRUE(IsValidEscape('D'));
EXPECT_TRUE(IsValidEscape('s'));
EXPECT_TRUE(IsValidEscape('S'));
EXPECT_TRUE(IsValidEscape('w'));
EXPECT_TRUE(IsValidEscape('W'));
}
TEST(AtomMatchesCharTest, EscapedPunct) {
EXPECT_FALSE(AtomMatchesChar(true, '\\', '\0'));
EXPECT_FALSE(AtomMatchesChar(true, '\\', ' '));
EXPECT_FALSE(AtomMatchesChar(true, '_', '.'));
EXPECT_FALSE(AtomMatchesChar(true, '.', 'a'));
EXPECT_TRUE(AtomMatchesChar(true, '\\', '\\'));
EXPECT_TRUE(AtomMatchesChar(true, '_', '_'));
EXPECT_TRUE(AtomMatchesChar(true, '+', '+'));
EXPECT_TRUE(AtomMatchesChar(true, '.', '.'));
}
TEST(AtomMatchesCharTest, Escaped_d) {
EXPECT_FALSE(AtomMatchesChar(true, 'd', '\0'));
EXPECT_FALSE(AtomMatchesChar(true, 'd', 'a'));
EXPECT_FALSE(AtomMatchesChar(true, 'd', '.'));
EXPECT_TRUE(AtomMatchesChar(true, 'd', '0'));
EXPECT_TRUE(AtomMatchesChar(true, 'd', '9'));
}
TEST(AtomMatchesCharTest, Escaped_D) {
EXPECT_FALSE(AtomMatchesChar(true, 'D', '0'));
EXPECT_FALSE(AtomMatchesChar(true, 'D', '9'));
EXPECT_TRUE(AtomMatchesChar(true, 'D', '\0'));
EXPECT_TRUE(AtomMatchesChar(true, 'D', 'a'));
EXPECT_TRUE(AtomMatchesChar(true, 'D', '-'));
}
TEST(AtomMatchesCharTest, Escaped_s) {
EXPECT_FALSE(AtomMatchesChar(true, 's', '\0'));
EXPECT_FALSE(AtomMatchesChar(true, 's', 'a'));
EXPECT_FALSE(AtomMatchesChar(true, 's', '.'));
EXPECT_FALSE(AtomMatchesChar(true, 's', '9'));
EXPECT_TRUE(AtomMatchesChar(true, 's', ' '));
EXPECT_TRUE(AtomMatchesChar(true, 's', '\n'));
EXPECT_TRUE(AtomMatchesChar(true, 's', '\t'));
}
TEST(AtomMatchesCharTest, Escaped_S) {
EXPECT_FALSE(AtomMatchesChar(true, 'S', ' '));
EXPECT_FALSE(AtomMatchesChar(true, 'S', '\r'));
EXPECT_TRUE(AtomMatchesChar(true, 'S', '\0'));
EXPECT_TRUE(AtomMatchesChar(true, 'S', 'a'));
EXPECT_TRUE(AtomMatchesChar(true, 'S', '9'));
}
TEST(AtomMatchesCharTest, Escaped_w) {
EXPECT_FALSE(AtomMatchesChar(true, 'w', '\0'));
EXPECT_FALSE(AtomMatchesChar(true, 'w', '+'));
EXPECT_FALSE(AtomMatchesChar(true, 'w', ' '));
EXPECT_FALSE(AtomMatchesChar(true, 'w', '\n'));
EXPECT_TRUE(AtomMatchesChar(true, 'w', '0'));
EXPECT_TRUE(AtomMatchesChar(true, 'w', 'b'));
EXPECT_TRUE(AtomMatchesChar(true, 'w', 'C'));
EXPECT_TRUE(AtomMatchesChar(true, 'w', '_'));
}
TEST(AtomMatchesCharTest, Escaped_W) {
EXPECT_FALSE(AtomMatchesChar(true, 'W', 'A'));
EXPECT_FALSE(AtomMatchesChar(true, 'W', 'b'));
EXPECT_FALSE(AtomMatchesChar(true, 'W', '9'));
EXPECT_FALSE(AtomMatchesChar(true, 'W', '_'));
EXPECT_TRUE(AtomMatchesChar(true, 'W', '\0'));
EXPECT_TRUE(AtomMatchesChar(true, 'W', '*'));
EXPECT_TRUE(AtomMatchesChar(true, 'W', '\n'));
}
TEST(AtomMatchesCharTest, EscapedWhiteSpace) {
EXPECT_FALSE(AtomMatchesChar(true, 'f', '\0'));
EXPECT_FALSE(AtomMatchesChar(true, 'f', '\n'));
EXPECT_FALSE(AtomMatchesChar(true, 'n', '\0'));
EXPECT_FALSE(AtomMatchesChar(true, 'n', '\r'));
EXPECT_FALSE(AtomMatchesChar(true, 'r', '\0'));
EXPECT_FALSE(AtomMatchesChar(true, 'r', 'a'));
EXPECT_FALSE(AtomMatchesChar(true, 't', '\0'));
EXPECT_FALSE(AtomMatchesChar(true, 't', 't'));
EXPECT_FALSE(AtomMatchesChar(true, 'v', '\0'));
EXPECT_FALSE(AtomMatchesChar(true, 'v', '\f'));
EXPECT_TRUE(AtomMatchesChar(true, 'f', '\f'));
EXPECT_TRUE(AtomMatchesChar(true, 'n', '\n'));
EXPECT_TRUE(AtomMatchesChar(true, 'r', '\r'));
EXPECT_TRUE(AtomMatchesChar(true, 't', '\t'));
EXPECT_TRUE(AtomMatchesChar(true, 'v', '\v'));
}
TEST(AtomMatchesCharTest, UnescapedDot) {
EXPECT_FALSE(AtomMatchesChar(false, '.', '\n'));
EXPECT_TRUE(AtomMatchesChar(false, '.', '\0'));
EXPECT_TRUE(AtomMatchesChar(false, '.', '.'));
EXPECT_TRUE(AtomMatchesChar(false, '.', 'a'));
EXPECT_TRUE(AtomMatchesChar(false, '.', ' '));
}
TEST(AtomMatchesCharTest, UnescapedChar) {
EXPECT_FALSE(AtomMatchesChar(false, 'a', '\0'));
EXPECT_FALSE(AtomMatchesChar(false, 'a', 'b'));
EXPECT_FALSE(AtomMatchesChar(false, '$', 'a'));
EXPECT_TRUE(AtomMatchesChar(false, '$', '$'));
EXPECT_TRUE(AtomMatchesChar(false, '5', '5'));
EXPECT_TRUE(AtomMatchesChar(false, 'Z', 'Z'));
}
TEST(ValidateRegexTest, GeneratesFailureAndReturnsFalseForInvalid) {
EXPECT_NONFATAL_FAILURE(ASSERT_FALSE(ValidateRegex(NULL)),
"NULL is not a valid simple regular expression");
EXPECT_NONFATAL_FAILURE(
ASSERT_FALSE(ValidateRegex("a\\")),
"Syntax error at index 1 in simple regular expression \"a\\\": ");
EXPECT_NONFATAL_FAILURE(ASSERT_FALSE(ValidateRegex("a\\")),
"'\\' cannot appear at the end");
EXPECT_NONFATAL_FAILURE(ASSERT_FALSE(ValidateRegex("\\n\\")),
"'\\' cannot appear at the end");
EXPECT_NONFATAL_FAILURE(ASSERT_FALSE(ValidateRegex("\\s\\hb")),
"invalid escape sequence \"\\h\"");
EXPECT_NONFATAL_FAILURE(ASSERT_FALSE(ValidateRegex("^^")),
"'^' can only appear at the beginning");
EXPECT_NONFATAL_FAILURE(ASSERT_FALSE(ValidateRegex(".*^b")),
"'^' can only appear at the beginning");
EXPECT_NONFATAL_FAILURE(ASSERT_FALSE(ValidateRegex("$$")),
"'$' can only appear at the end");
EXPECT_NONFATAL_FAILURE(ASSERT_FALSE(ValidateRegex("^$a")),
"'$' can only appear at the end");
EXPECT_NONFATAL_FAILURE(ASSERT_FALSE(ValidateRegex("a(b")),
"'(' is unsupported");
EXPECT_NONFATAL_FAILURE(ASSERT_FALSE(ValidateRegex("ab)")),
"')' is unsupported");
EXPECT_NONFATAL_FAILURE(ASSERT_FALSE(ValidateRegex("[ab")),
"'[' is unsupported");
EXPECT_NONFATAL_FAILURE(ASSERT_FALSE(ValidateRegex("a{2")),
"'{' is unsupported");
EXPECT_NONFATAL_FAILURE(ASSERT_FALSE(ValidateRegex("?")),
"'?' can only follow a repeatable token");
EXPECT_NONFATAL_FAILURE(ASSERT_FALSE(ValidateRegex("^*")),
"'*' can only follow a repeatable token");
EXPECT_NONFATAL_FAILURE(ASSERT_FALSE(ValidateRegex("5*+")),
"'+' can only follow a repeatable token");
}
TEST(ValidateRegexTest, ReturnsTrueForValid) {
EXPECT_TRUE(ValidateRegex(""));
EXPECT_TRUE(ValidateRegex("a"));
EXPECT_TRUE(ValidateRegex(".*"));
EXPECT_TRUE(ValidateRegex("^a_+"));
EXPECT_TRUE(ValidateRegex("^a\\t\\&?"));
EXPECT_TRUE(ValidateRegex("09*$"));
EXPECT_TRUE(ValidateRegex("^Z$"));
EXPECT_TRUE(ValidateRegex("a\\^Z\\$\\(\\)\\|\\[\\]\\{\\}"));
}
TEST(MatchRepetitionAndRegexAtHeadTest, WorksForZeroOrOne) {
EXPECT_FALSE(MatchRepetitionAndRegexAtHead(false, 'a', '?', "a", "ba"));
// Repeating more than once.
EXPECT_FALSE(MatchRepetitionAndRegexAtHead(false, 'a', '?', "b", "aab"));
// Repeating zero times.
EXPECT_TRUE(MatchRepetitionAndRegexAtHead(false, 'a', '?', "b", "ba"));
// Repeating once.
EXPECT_TRUE(MatchRepetitionAndRegexAtHead(false, 'a', '?', "b", "ab"));
EXPECT_TRUE(MatchRepetitionAndRegexAtHead(false, '#', '?', ".", "##"));
}
TEST(MatchRepetitionAndRegexAtHeadTest, WorksForZeroOrMany) {
EXPECT_FALSE(MatchRepetitionAndRegexAtHead(false, '.', '*', "a$", "baab"));
// Repeating zero times.
EXPECT_TRUE(MatchRepetitionAndRegexAtHead(false, '.', '*', "b", "bc"));
// Repeating once.
EXPECT_TRUE(MatchRepetitionAndRegexAtHead(false, '.', '*', "b", "abc"));
// Repeating more than once.
EXPECT_TRUE(MatchRepetitionAndRegexAtHead(true, 'w', '*', "-", "ab_1-g"));
}
TEST(MatchRepetitionAndRegexAtHeadTest, WorksForOneOrMany) {
EXPECT_FALSE(MatchRepetitionAndRegexAtHead(false, '.', '+', "a$", "baab"));
// Repeating zero times.
EXPECT_FALSE(MatchRepetitionAndRegexAtHead(false, '.', '+', "b", "bc"));
// Repeating once.
EXPECT_TRUE(MatchRepetitionAndRegexAtHead(false, '.', '+', "b", "abc"));
// Repeating more than once.
EXPECT_TRUE(MatchRepetitionAndRegexAtHead(true, 'w', '+', "-", "ab_1-g"));
}
TEST(MatchRegexAtHeadTest, ReturnsTrueForEmptyRegex) {
EXPECT_TRUE(MatchRegexAtHead("", ""));
EXPECT_TRUE(MatchRegexAtHead("", "ab"));
}
TEST(MatchRegexAtHeadTest, WorksWhenDollarIsInRegex) {
EXPECT_FALSE(MatchRegexAtHead("$", "a"));
EXPECT_TRUE(MatchRegexAtHead("$", ""));
EXPECT_TRUE(MatchRegexAtHead("a$", "a"));
}
TEST(MatchRegexAtHeadTest, WorksWhenRegexStartsWithEscapeSequence) {
EXPECT_FALSE(MatchRegexAtHead("\\w", "+"));
EXPECT_FALSE(MatchRegexAtHead("\\W", "ab"));
EXPECT_TRUE(MatchRegexAtHead("\\sa", "\nab"));
EXPECT_TRUE(MatchRegexAtHead("\\d", "1a"));
}
TEST(MatchRegexAtHeadTest, WorksWhenRegexStartsWithRepetition) {
EXPECT_FALSE(MatchRegexAtHead(".+a", "abc"));
EXPECT_FALSE(MatchRegexAtHead("a?b", "aab"));
EXPECT_TRUE(MatchRegexAtHead(".*a", "bc12-ab"));
EXPECT_TRUE(MatchRegexAtHead("a?b", "b"));
EXPECT_TRUE(MatchRegexAtHead("a?b", "ab"));
}
TEST(MatchRegexAtHeadTest, WorksWhenRegexStartsWithRepetionOfEscapeSequence) {
EXPECT_FALSE(MatchRegexAtHead("\\.+a", "abc"));
EXPECT_FALSE(MatchRegexAtHead("\\s?b", " b"));
EXPECT_TRUE(MatchRegexAtHead("\\(*a", "((((ab"));
EXPECT_TRUE(MatchRegexAtHead("\\^?b", "^b"));
EXPECT_TRUE(MatchRegexAtHead("\\\\?b", "b"));
EXPECT_TRUE(MatchRegexAtHead("\\\\?b", "\\b"));
}
TEST(MatchRegexAtHeadTest, MatchesSequentially) {
EXPECT_FALSE(MatchRegexAtHead("ab.*c", "acabc"));
EXPECT_TRUE(MatchRegexAtHead("ab.*c", "ab-fsc"));
}
TEST(MatchRegexAnywhereTest, ReturnsFalseWhenStringIsNull) {
EXPECT_FALSE(MatchRegexAnywhere("", NULL));
}
TEST(MatchRegexAnywhereTest, WorksWhenRegexStartsWithCaret) {
EXPECT_FALSE(MatchRegexAnywhere("^a", "ba"));
EXPECT_FALSE(MatchRegexAnywhere("^$", "a"));
EXPECT_TRUE(MatchRegexAnywhere("^a", "ab"));
EXPECT_TRUE(MatchRegexAnywhere("^", "ab"));
EXPECT_TRUE(MatchRegexAnywhere("^$", ""));
}
TEST(MatchRegexAnywhereTest, ReturnsFalseWhenNoMatch) {
EXPECT_FALSE(MatchRegexAnywhere("a", "bcde123"));
EXPECT_FALSE(MatchRegexAnywhere("a.+a", "--aa88888888"));
}
TEST(MatchRegexAnywhereTest, ReturnsTrueWhenMatchingPrefix) {
EXPECT_TRUE(MatchRegexAnywhere("\\w+", "ab1_ - 5"));
EXPECT_TRUE(MatchRegexAnywhere(".*=", "="));
EXPECT_TRUE(MatchRegexAnywhere("x.*ab?.*bc", "xaaabc"));
}
TEST(MatchRegexAnywhereTest, ReturnsTrueWhenMatchingNonPrefix) {
EXPECT_TRUE(MatchRegexAnywhere("\\w+", "$$$ ab1_ - 5"));
EXPECT_TRUE(MatchRegexAnywhere("\\.+=", "= ...="));
}
// Tests RE's implicit constructors.
TEST(RETest, ImplicitConstructorWorks) {
const RE empty("");
EXPECT_STREQ("", empty.pattern());
const RE simple("hello");
EXPECT_STREQ("hello", simple.pattern());
}
// Tests that RE's constructors reject invalid regular expressions.
TEST(RETest, RejectsInvalidRegex) {
EXPECT_NONFATAL_FAILURE({ const RE normal(NULL); },
"NULL is not a valid simple regular expression");
EXPECT_NONFATAL_FAILURE({ const RE normal(".*(\\w+"); },
"'(' is unsupported");
EXPECT_NONFATAL_FAILURE({ const RE invalid("^?"); },
"'?' can only follow a repeatable token");
}
// Tests RE::FullMatch().
TEST(RETest, FullMatchWorks) {
const RE empty("");
EXPECT_TRUE(RE::FullMatch("", empty));
EXPECT_FALSE(RE::FullMatch("a", empty));
const RE re1("a");
EXPECT_TRUE(RE::FullMatch("a", re1));
const RE re("a.*z");
EXPECT_TRUE(RE::FullMatch("az", re));
EXPECT_TRUE(RE::FullMatch("axyz", re));
EXPECT_FALSE(RE::FullMatch("baz", re));
EXPECT_FALSE(RE::FullMatch("azy", re));
}
// Tests RE::PartialMatch().
TEST(RETest, PartialMatchWorks) {
const RE empty("");
EXPECT_TRUE(RE::PartialMatch("", empty));
EXPECT_TRUE(RE::PartialMatch("a", empty));
const RE re("a.*z");
EXPECT_TRUE(RE::PartialMatch("az", re));
EXPECT_TRUE(RE::PartialMatch("axyz", re));
EXPECT_TRUE(RE::PartialMatch("baz", re));
EXPECT_TRUE(RE::PartialMatch("azy", re));
EXPECT_FALSE(RE::PartialMatch("zza", re));
}
#endif // GTEST_USES_POSIX_RE
#ifndef GTEST_OS_WINDOWS_MOBILE
TEST(CaptureTest, CapturesStdout) {
CaptureStdout();
fprintf(stdout, "abc");
EXPECT_STREQ("abc", GetCapturedStdout().c_str());
CaptureStdout();
fprintf(stdout, "def%cghi", '\0');
EXPECT_EQ(::std::string("def\0ghi", 7), ::std::string(GetCapturedStdout()));
}
TEST(CaptureTest, CapturesStderr) {
CaptureStderr();
fprintf(stderr, "jkl");
EXPECT_STREQ("jkl", GetCapturedStderr().c_str());
CaptureStderr();
fprintf(stderr, "jkl%cmno", '\0');
EXPECT_EQ(::std::string("jkl\0mno", 7), ::std::string(GetCapturedStderr()));
}
// Tests that stdout and stderr capture don't interfere with each other.
TEST(CaptureTest, CapturesStdoutAndStderr) {
CaptureStdout();
CaptureStderr();
fprintf(stdout, "pqr");
fprintf(stderr, "stu");
EXPECT_STREQ("pqr", GetCapturedStdout().c_str());
EXPECT_STREQ("stu", GetCapturedStderr().c_str());
}
TEST(CaptureDeathTest, CannotReenterStdoutCapture) {
CaptureStdout();
EXPECT_DEATH_IF_SUPPORTED(CaptureStdout(),
"Only one stdout capturer can exist at a time");
GetCapturedStdout();
// We cannot test stderr capturing using death tests as they use it
// themselves.
}
#endif // !GTEST_OS_WINDOWS_MOBILE
TEST(ThreadLocalTest, DefaultConstructorInitializesToDefaultValues) {
ThreadLocal<int> t1;
EXPECT_EQ(0, t1.get());
ThreadLocal<void*> t2;
EXPECT_TRUE(t2.get() == nullptr);
}
TEST(ThreadLocalTest, SingleParamConstructorInitializesToParam) {
ThreadLocal<int> t1(123);
EXPECT_EQ(123, t1.get());
int i = 0;
ThreadLocal<int*> t2(&i);
EXPECT_EQ(&i, t2.get());
}
class NoDefaultConstructor {
public:
explicit NoDefaultConstructor(const char*) {}
NoDefaultConstructor(const NoDefaultConstructor&) = default;
};
TEST(ThreadLocalTest, ValueDefaultContructorIsNotRequiredForParamVersion) {
ThreadLocal<NoDefaultConstructor> bar(NoDefaultConstructor("foo"));
bar.pointer();
}
TEST(ThreadLocalTest, GetAndPointerReturnSameValue) {
ThreadLocal<std::string> thread_local_string;
EXPECT_EQ(thread_local_string.pointer(), &(thread_local_string.get()));
// Verifies the condition still holds after calling set.
thread_local_string.set("foo");
EXPECT_EQ(thread_local_string.pointer(), &(thread_local_string.get()));
}
TEST(ThreadLocalTest, PointerAndConstPointerReturnSameValue) {
ThreadLocal<std::string> thread_local_string;
const ThreadLocal<std::string>& const_thread_local_string =
thread_local_string;
EXPECT_EQ(thread_local_string.pointer(), const_thread_local_string.pointer());
thread_local_string.set("foo");
EXPECT_EQ(thread_local_string.pointer(), const_thread_local_string.pointer());
}
#ifdef GTEST_IS_THREADSAFE
void AddTwo(int* param) { *param += 2; }
TEST(ThreadWithParamTest, ConstructorExecutesThreadFunc) {
int i = 40;
ThreadWithParam<int*> thread(&AddTwo, &i, nullptr);
thread.Join();
EXPECT_EQ(42, i);
}
TEST(MutexDeathTest, AssertHeldShouldAssertWhenNotLocked) {
// AssertHeld() is flaky only in the presence of multiple threads accessing
// the lock. In this case, the test is robust.
EXPECT_DEATH_IF_SUPPORTED(
{
Mutex m;
{ MutexLock lock(&m); }
m.AssertHeld();
},
"thread .*hold");
}
TEST(MutexTest, AssertHeldShouldNotAssertWhenLocked) {
Mutex m;
MutexLock lock(&m);
m.AssertHeld();
}
class AtomicCounterWithMutex {
public:
explicit AtomicCounterWithMutex(Mutex* mutex)
: value_(0), mutex_(mutex), random_(42) {}
void Increment() {
MutexLock lock(mutex_);
int temp = value_;
{
// We need to put up a memory barrier to prevent reads and writes to
// value_ rearranged with the call to sleep_for when observed
// from other threads.
#if GTEST_HAS_PTHREAD
// On POSIX, locking a mutex puts up a memory barrier. We cannot use
// Mutex and MutexLock here or rely on their memory barrier
// functionality as we are testing them here.
pthread_mutex_t memory_barrier_mutex;
GTEST_CHECK_POSIX_SUCCESS_(
pthread_mutex_init(&memory_barrier_mutex, nullptr));
GTEST_CHECK_POSIX_SUCCESS_(pthread_mutex_lock(&memory_barrier_mutex));
std::this_thread::sleep_for(
std::chrono::milliseconds(random_.Generate(30)));
GTEST_CHECK_POSIX_SUCCESS_(pthread_mutex_unlock(&memory_barrier_mutex));
GTEST_CHECK_POSIX_SUCCESS_(pthread_mutex_destroy(&memory_barrier_mutex));
#elif defined(GTEST_OS_WINDOWS)
// On Windows, performing an interlocked access puts up a memory barrier.
volatile LONG dummy = 0;
::InterlockedIncrement(&dummy);
std::this_thread::sleep_for(
std::chrono::milliseconds(random_.Generate(30)));
::InterlockedIncrement(&dummy);
#else
#error "Memory barrier not implemented on this platform."
#endif // GTEST_HAS_PTHREAD
}
value_ = temp + 1;
}
int value() const { return value_; }
private:
volatile int value_;
Mutex* const mutex_; // Protects value_.
Random random_;
};
void CountingThreadFunc(pair<AtomicCounterWithMutex*, int> param) {
for (int i = 0; i < param.second; ++i) param.first->Increment();
}
// Tests that the mutex only lets one thread at a time to lock it.
TEST(MutexTest, OnlyOneThreadCanLockAtATime) {
Mutex mutex;
AtomicCounterWithMutex locked_counter(&mutex);
typedef ThreadWithParam<pair<AtomicCounterWithMutex*, int> > ThreadType;
const int kCycleCount = 20;
const int kThreadCount = 7;
std::unique_ptr<ThreadType> counting_threads[kThreadCount];
Notification threads_can_start;
// Creates and runs kThreadCount threads that increment locked_counter
// kCycleCount times each.
for (int i = 0; i < kThreadCount; ++i) {
counting_threads[i] = std::make_unique<ThreadType>(
&CountingThreadFunc, make_pair(&locked_counter, kCycleCount),
&threads_can_start);
}
threads_can_start.Notify();
for (int i = 0; i < kThreadCount; ++i) counting_threads[i]->Join();
// If the mutex lets more than one thread to increment the counter at a
// time, they are likely to encounter a race condition and have some
// increments overwritten, resulting in the lower then expected counter
// value.
EXPECT_EQ(kCycleCount * kThreadCount, locked_counter.value());
}
template <typename T>
void RunFromThread(void(func)(T), T param) {
ThreadWithParam<T> thread(func, param, nullptr);
thread.Join();
}
void RetrieveThreadLocalValue(
pair<ThreadLocal<std::string>*, std::string*> param) {
*param.second = param.first->get();
}
TEST(ThreadLocalTest, ParameterizedConstructorSetsDefault) {
ThreadLocal<std::string> thread_local_string("foo");
EXPECT_STREQ("foo", thread_local_string.get().c_str());
thread_local_string.set("bar");
EXPECT_STREQ("bar", thread_local_string.get().c_str());
std::string result;
RunFromThread(&RetrieveThreadLocalValue,
make_pair(&thread_local_string, &result));
EXPECT_STREQ("foo", result.c_str());
}
// Keeps track of whether of destructors being called on instances of
// DestructorTracker. On Windows, waits for the destructor call reports.
class DestructorCall {
public:
DestructorCall() {
invoked_ = false;
#ifdef GTEST_OS_WINDOWS
wait_event_.Reset(::CreateEvent(NULL, TRUE, FALSE, NULL));
GTEST_CHECK_(wait_event_.Get() != NULL);
#endif
}
bool CheckDestroyed() const {
#ifdef GTEST_OS_WINDOWS
if (::WaitForSingleObject(wait_event_.Get(), 1000) != WAIT_OBJECT_0)
return false;
#endif
return invoked_;
}
void ReportDestroyed() {
invoked_ = true;
#ifdef GTEST_OS_WINDOWS
::SetEvent(wait_event_.Get());
#endif
}
static std::vector<DestructorCall*>& List() { return *list_; }
static void ResetList() {
for (size_t i = 0; i < list_->size(); ++i) {
delete list_->at(i);
}
list_->clear();
}
private:
bool invoked_;
#ifdef GTEST_OS_WINDOWS
AutoHandle wait_event_;
#endif
static std::vector<DestructorCall*>* const list_;
DestructorCall(const DestructorCall&) = delete;
DestructorCall& operator=(const DestructorCall&) = delete;
};
std::vector<DestructorCall*>* const DestructorCall::list_ =
new std::vector<DestructorCall*>;
// DestructorTracker keeps track of whether its instances have been
// destroyed.
class DestructorTracker {
public:
DestructorTracker() : index_(GetNewIndex()) {}
DestructorTracker(const DestructorTracker& /* rhs */)
: index_(GetNewIndex()) {}
~DestructorTracker() {
// We never access DestructorCall::List() concurrently, so we don't need
// to protect this access with a mutex.
DestructorCall::List()[index_]->ReportDestroyed();
}
private:
static size_t GetNewIndex() {
DestructorCall::List().push_back(new DestructorCall);
return DestructorCall::List().size() - 1;
}
const size_t index_;
};
typedef ThreadLocal<DestructorTracker>* ThreadParam;
void CallThreadLocalGet(ThreadParam thread_local_param) {
thread_local_param->get();
}
// Tests that when a ThreadLocal object dies in a thread, it destroys
// the managed object for that thread.
TEST(ThreadLocalTest, DestroysManagedObjectForOwnThreadWhenDying) {
DestructorCall::ResetList();
{
ThreadLocal<DestructorTracker> thread_local_tracker;
ASSERT_EQ(0U, DestructorCall::List().size());
// This creates another DestructorTracker object for the main thread.
thread_local_tracker.get();
ASSERT_EQ(1U, DestructorCall::List().size());
ASSERT_FALSE(DestructorCall::List()[0]->CheckDestroyed());
}
// Now thread_local_tracker has died.
ASSERT_EQ(1U, DestructorCall::List().size());
EXPECT_TRUE(DestructorCall::List()[0]->CheckDestroyed());
DestructorCall::ResetList();
}
// Tests that when a thread exits, the thread-local object for that
// thread is destroyed.
TEST(ThreadLocalTest, DestroysManagedObjectAtThreadExit) {
DestructorCall::ResetList();
{
ThreadLocal<DestructorTracker> thread_local_tracker;
ASSERT_EQ(0U, DestructorCall::List().size());
// This creates another DestructorTracker object in the new thread.
ThreadWithParam<ThreadParam> thread(&CallThreadLocalGet,
&thread_local_tracker, nullptr);
thread.Join();
// The thread has exited, and we should have a DestroyedTracker
// instance created for it. But it may not have been destroyed yet.
ASSERT_EQ(1U, DestructorCall::List().size());
}
// The thread has exited and thread_local_tracker has died.
ASSERT_EQ(1U, DestructorCall::List().size());
EXPECT_TRUE(DestructorCall::List()[0]->CheckDestroyed());
DestructorCall::ResetList();
}
TEST(ThreadLocalTest, ThreadLocalMutationsAffectOnlyCurrentThread) {
ThreadLocal<std::string> thread_local_string;
thread_local_string.set("Foo");
EXPECT_STREQ("Foo", thread_local_string.get().c_str());
std::string result;
RunFromThread(&RetrieveThreadLocalValue,
make_pair(&thread_local_string, &result));
EXPECT_TRUE(result.empty());
}
#endif // GTEST_IS_THREADSAFE
#ifdef GTEST_OS_WINDOWS
TEST(WindowsTypesTest, HANDLEIsVoidStar) {
StaticAssertTypeEq<HANDLE, void*>();
}
#if defined(GTEST_OS_WINDOWS_MINGW) && !defined(__MINGW64_VERSION_MAJOR)
TEST(WindowsTypesTest, _CRITICAL_SECTIONIs_CRITICAL_SECTION) {
StaticAssertTypeEq<CRITICAL_SECTION, _CRITICAL_SECTION>();
}
#else
TEST(WindowsTypesTest, CRITICAL_SECTIONIs_RTL_CRITICAL_SECTION) {
StaticAssertTypeEq<CRITICAL_SECTION, _RTL_CRITICAL_SECTION>();
}
#endif
#endif // GTEST_OS_WINDOWS
} // namespace internal
} // namespace testing
|