xref: /freebsd/contrib/googletest/googlemock/test/gmock-internal-utils_test.cc (revision 1719886f6d08408b834d270c59ffcfd821c8f63a)
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29 
30 // Google Mock - a framework for writing C++ mock classes.
31 //
32 // This file tests the internal utilities.
33 
34 #include "gmock/internal/gmock-internal-utils.h"
35 
36 #include <stdlib.h>
37 
38 #include <cstdint>
39 #include <map>
40 #include <memory>
41 #include <sstream>
42 #include <string>
43 #include <tuple>
44 #include <vector>
45 
46 #include "gmock/gmock.h"
47 #include "gmock/internal/gmock-port.h"
48 #include "gtest/gtest-spi.h"
49 #include "gtest/gtest.h"
50 
51 // Indicates that this translation unit is part of Google Test's
52 // implementation.  It must come before gtest-internal-inl.h is
53 // included, or there will be a compiler error.  This trick is to
54 // prevent a user from accidentally including gtest-internal-inl.h in
55 // their code.
56 #define GTEST_IMPLEMENTATION_ 1
57 #include "src/gtest-internal-inl.h"
58 #undef GTEST_IMPLEMENTATION_
59 
60 #ifdef GTEST_OS_CYGWIN
61 #include <sys/types.h>  // For ssize_t. NOLINT
62 #endif
63 
64 namespace proto2 {
65 class Message;
66 }  // namespace proto2
67 
68 namespace testing {
69 namespace internal {
70 
71 namespace {
72 
73 TEST(JoinAsKeyValueTupleTest, JoinsEmptyTuple) {
74   EXPECT_EQ("", JoinAsKeyValueTuple({}, Strings()));
75 }
76 
77 TEST(JoinAsKeyValueTupleTest, JoinsOneTuple) {
78   EXPECT_EQ("(a: 1)", JoinAsKeyValueTuple({"a"}, {"1"}));
79 }
80 
81 TEST(JoinAsKeyValueTupleTest, JoinsTwoTuple) {
82   EXPECT_EQ("(a: 1, b: 2)", JoinAsKeyValueTuple({"a", "b"}, {"1", "2"}));
83 }
84 
85 TEST(JoinAsKeyValueTupleTest, JoinsTenTuple) {
86   EXPECT_EQ(
87       "(a: 1, b: 2, c: 3, d: 4, e: 5, f: 6, g: 7, h: 8, i: 9, j: 10)",
88       JoinAsKeyValueTuple({"a", "b", "c", "d", "e", "f", "g", "h", "i", "j"},
89                           {"1", "2", "3", "4", "5", "6", "7", "8", "9", "10"}));
90 }
91 
92 TEST(ConvertIdentifierNameToWordsTest, WorksWhenNameContainsNoWord) {
93   EXPECT_EQ("", ConvertIdentifierNameToWords(""));
94   EXPECT_EQ("", ConvertIdentifierNameToWords("_"));
95   EXPECT_EQ("", ConvertIdentifierNameToWords("__"));
96 }
97 
98 TEST(ConvertIdentifierNameToWordsTest, WorksWhenNameContainsDigits) {
99   EXPECT_EQ("1", ConvertIdentifierNameToWords("_1"));
100   EXPECT_EQ("2", ConvertIdentifierNameToWords("2_"));
101   EXPECT_EQ("34", ConvertIdentifierNameToWords("_34_"));
102   EXPECT_EQ("34 56", ConvertIdentifierNameToWords("_34_56"));
103 }
104 
105 TEST(ConvertIdentifierNameToWordsTest, WorksWhenNameContainsCamelCaseWords) {
106   EXPECT_EQ("a big word", ConvertIdentifierNameToWords("ABigWord"));
107   EXPECT_EQ("foo bar", ConvertIdentifierNameToWords("FooBar"));
108   EXPECT_EQ("foo", ConvertIdentifierNameToWords("Foo_"));
109   EXPECT_EQ("foo bar", ConvertIdentifierNameToWords("_Foo_Bar_"));
110   EXPECT_EQ("foo and bar", ConvertIdentifierNameToWords("_Foo__And_Bar"));
111 }
112 
113 TEST(ConvertIdentifierNameToWordsTest, WorksWhenNameContains_SeparatedWords) {
114   EXPECT_EQ("foo bar", ConvertIdentifierNameToWords("foo_bar"));
115   EXPECT_EQ("foo", ConvertIdentifierNameToWords("_foo_"));
116   EXPECT_EQ("foo bar", ConvertIdentifierNameToWords("_foo_bar_"));
117   EXPECT_EQ("foo and bar", ConvertIdentifierNameToWords("_foo__and_bar"));
118 }
119 
120 TEST(ConvertIdentifierNameToWordsTest, WorksWhenNameIsMixture) {
121   EXPECT_EQ("foo bar 123", ConvertIdentifierNameToWords("Foo_bar123"));
122   EXPECT_EQ("chapter 11 section 1",
123             ConvertIdentifierNameToWords("_Chapter11Section_1_"));
124 }
125 
126 TEST(GetRawPointerTest, WorksForSmartPointers) {
127   const char* const raw_p1 = new const char('a');  // NOLINT
128   const std::unique_ptr<const char> p1(raw_p1);
129   EXPECT_EQ(raw_p1, GetRawPointer(p1));
130   double* const raw_p2 = new double(2.5);  // NOLINT
131   const std::shared_ptr<double> p2(raw_p2);
132   EXPECT_EQ(raw_p2, GetRawPointer(p2));
133 }
134 
135 TEST(GetRawPointerTest, WorksForRawPointers) {
136   int* p = nullptr;
137   EXPECT_TRUE(nullptr == GetRawPointer(p));
138   int n = 1;
139   EXPECT_EQ(&n, GetRawPointer(&n));
140 }
141 
142 TEST(GetRawPointerTest, WorksForStdReferenceWrapper) {
143   int n = 1;
144   EXPECT_EQ(&n, GetRawPointer(std::ref(n)));
145   EXPECT_EQ(&n, GetRawPointer(std::cref(n)));
146 }
147 
148 // Tests KindOf<T>.
149 
150 class Base {};
151 class Derived : public Base {};
152 
153 TEST(KindOfTest, Bool) {
154   EXPECT_EQ(kBool, GMOCK_KIND_OF_(bool));  // NOLINT
155 }
156 
157 TEST(KindOfTest, Integer) {
158   EXPECT_EQ(kInteger, GMOCK_KIND_OF_(char));                // NOLINT
159   EXPECT_EQ(kInteger, GMOCK_KIND_OF_(signed char));         // NOLINT
160   EXPECT_EQ(kInteger, GMOCK_KIND_OF_(unsigned char));       // NOLINT
161   EXPECT_EQ(kInteger, GMOCK_KIND_OF_(short));               // NOLINT
162   EXPECT_EQ(kInteger, GMOCK_KIND_OF_(unsigned short));      // NOLINT
163   EXPECT_EQ(kInteger, GMOCK_KIND_OF_(int));                 // NOLINT
164   EXPECT_EQ(kInteger, GMOCK_KIND_OF_(unsigned int));        // NOLINT
165   EXPECT_EQ(kInteger, GMOCK_KIND_OF_(long));                // NOLINT
166   EXPECT_EQ(kInteger, GMOCK_KIND_OF_(unsigned long));       // NOLINT
167   EXPECT_EQ(kInteger, GMOCK_KIND_OF_(long long));           // NOLINT
168   EXPECT_EQ(kInteger, GMOCK_KIND_OF_(unsigned long long));  // NOLINT
169   EXPECT_EQ(kInteger, GMOCK_KIND_OF_(wchar_t));             // NOLINT
170   EXPECT_EQ(kInteger, GMOCK_KIND_OF_(size_t));              // NOLINT
171 #if defined(GTEST_OS_LINUX) || defined(GTEST_OS_MAC) || defined(GTEST_OS_CYGWIN)
172   // ssize_t is not defined on Windows and possibly some other OSes.
173   EXPECT_EQ(kInteger, GMOCK_KIND_OF_(ssize_t));  // NOLINT
174 #endif
175 }
176 
177 TEST(KindOfTest, FloatingPoint) {
178   EXPECT_EQ(kFloatingPoint, GMOCK_KIND_OF_(float));        // NOLINT
179   EXPECT_EQ(kFloatingPoint, GMOCK_KIND_OF_(double));       // NOLINT
180   EXPECT_EQ(kFloatingPoint, GMOCK_KIND_OF_(long double));  // NOLINT
181 }
182 
183 TEST(KindOfTest, Other) {
184   EXPECT_EQ(kOther, GMOCK_KIND_OF_(void*));   // NOLINT
185   EXPECT_EQ(kOther, GMOCK_KIND_OF_(char**));  // NOLINT
186   EXPECT_EQ(kOther, GMOCK_KIND_OF_(Base));    // NOLINT
187 }
188 
189 // Tests LosslessArithmeticConvertible<T, U>.
190 
191 TEST(LosslessArithmeticConvertibleTest, BoolToBool) {
192   EXPECT_TRUE((LosslessArithmeticConvertible<bool, bool>::value));
193 }
194 
195 TEST(LosslessArithmeticConvertibleTest, BoolToInteger) {
196   EXPECT_TRUE((LosslessArithmeticConvertible<bool, char>::value));
197   EXPECT_TRUE((LosslessArithmeticConvertible<bool, int>::value));
198   EXPECT_TRUE(
199       (LosslessArithmeticConvertible<bool, unsigned long>::value));  // NOLINT
200 }
201 
202 TEST(LosslessArithmeticConvertibleTest, BoolToFloatingPoint) {
203   EXPECT_TRUE((LosslessArithmeticConvertible<bool, float>::value));
204   EXPECT_TRUE((LosslessArithmeticConvertible<bool, double>::value));
205 }
206 
207 TEST(LosslessArithmeticConvertibleTest, IntegerToBool) {
208   EXPECT_FALSE((LosslessArithmeticConvertible<unsigned char, bool>::value));
209   EXPECT_FALSE((LosslessArithmeticConvertible<int, bool>::value));
210 }
211 
212 TEST(LosslessArithmeticConvertibleTest, IntegerToInteger) {
213   // Unsigned => larger signed is fine.
214   EXPECT_TRUE((LosslessArithmeticConvertible<unsigned char, int>::value));
215 
216   // Unsigned => larger unsigned is fine.
217   EXPECT_TRUE((LosslessArithmeticConvertible<unsigned short,
218                                              uint64_t>::value));  // NOLINT
219 
220   // Signed => unsigned is not fine.
221   EXPECT_FALSE(
222       (LosslessArithmeticConvertible<short, uint64_t>::value));  // NOLINT
223   EXPECT_FALSE((LosslessArithmeticConvertible<signed char,
224                                               unsigned int>::value));  // NOLINT
225 
226   // Same size and same signedness: fine too.
227   EXPECT_TRUE(
228       (LosslessArithmeticConvertible<unsigned char, unsigned char>::value));
229   EXPECT_TRUE((LosslessArithmeticConvertible<int, int>::value));
230   EXPECT_TRUE((LosslessArithmeticConvertible<wchar_t, wchar_t>::value));
231   EXPECT_TRUE((LosslessArithmeticConvertible<unsigned long,
232                                              unsigned long>::value));  // NOLINT
233 
234   // Same size, different signedness: not fine.
235   EXPECT_FALSE(
236       (LosslessArithmeticConvertible<unsigned char, signed char>::value));
237   EXPECT_FALSE((LosslessArithmeticConvertible<int, unsigned int>::value));
238   EXPECT_FALSE((LosslessArithmeticConvertible<uint64_t, int64_t>::value));
239 
240   // Larger size => smaller size is not fine.
241   EXPECT_FALSE((LosslessArithmeticConvertible<long, char>::value));  // NOLINT
242   EXPECT_FALSE((LosslessArithmeticConvertible<int, signed char>::value));
243   EXPECT_FALSE((LosslessArithmeticConvertible<int64_t, unsigned int>::value));
244 }
245 
246 TEST(LosslessArithmeticConvertibleTest, IntegerToFloatingPoint) {
247   // Integers cannot be losslessly converted to floating-points, as
248   // the format of the latter is implementation-defined.
249   EXPECT_FALSE((LosslessArithmeticConvertible<char, float>::value));
250   EXPECT_FALSE((LosslessArithmeticConvertible<int, double>::value));
251   EXPECT_FALSE(
252       (LosslessArithmeticConvertible<short, long double>::value));  // NOLINT
253 }
254 
255 TEST(LosslessArithmeticConvertibleTest, FloatingPointToBool) {
256   EXPECT_FALSE((LosslessArithmeticConvertible<float, bool>::value));
257   EXPECT_FALSE((LosslessArithmeticConvertible<double, bool>::value));
258 }
259 
260 TEST(LosslessArithmeticConvertibleTest, FloatingPointToInteger) {
261   EXPECT_FALSE((LosslessArithmeticConvertible<float, long>::value));  // NOLINT
262   EXPECT_FALSE((LosslessArithmeticConvertible<double, int64_t>::value));
263   EXPECT_FALSE((LosslessArithmeticConvertible<long double, int>::value));
264 }
265 
266 TEST(LosslessArithmeticConvertibleTest, FloatingPointToFloatingPoint) {
267   // Smaller size => larger size is fine.
268   EXPECT_TRUE((LosslessArithmeticConvertible<float, double>::value));
269   EXPECT_TRUE((LosslessArithmeticConvertible<float, long double>::value));
270   EXPECT_TRUE((LosslessArithmeticConvertible<double, long double>::value));
271 
272   // Same size: fine.
273   EXPECT_TRUE((LosslessArithmeticConvertible<float, float>::value));
274   EXPECT_TRUE((LosslessArithmeticConvertible<double, double>::value));
275 
276   // Larger size => smaller size is not fine.
277   EXPECT_FALSE((LosslessArithmeticConvertible<double, float>::value));
278   GTEST_INTENTIONAL_CONST_COND_PUSH_()
279   if (sizeof(double) == sizeof(long double)) {  // NOLINT
280     GTEST_INTENTIONAL_CONST_COND_POP_()
281     // In some implementations (e.g. MSVC), double and long double
282     // have the same size.
283     EXPECT_TRUE((LosslessArithmeticConvertible<long double, double>::value));
284   } else {
285     EXPECT_FALSE((LosslessArithmeticConvertible<long double, double>::value));
286   }
287 }
288 
289 // Tests the TupleMatches() template function.
290 
291 TEST(TupleMatchesTest, WorksForSize0) {
292   std::tuple<> matchers;
293   std::tuple<> values;
294 
295   EXPECT_TRUE(TupleMatches(matchers, values));
296 }
297 
298 TEST(TupleMatchesTest, WorksForSize1) {
299   std::tuple<Matcher<int>> matchers(Eq(1));
300   std::tuple<int> values1(1), values2(2);
301 
302   EXPECT_TRUE(TupleMatches(matchers, values1));
303   EXPECT_FALSE(TupleMatches(matchers, values2));
304 }
305 
306 TEST(TupleMatchesTest, WorksForSize2) {
307   std::tuple<Matcher<int>, Matcher<char>> matchers(Eq(1), Eq('a'));
308   std::tuple<int, char> values1(1, 'a'), values2(1, 'b'), values3(2, 'a'),
309       values4(2, 'b');
310 
311   EXPECT_TRUE(TupleMatches(matchers, values1));
312   EXPECT_FALSE(TupleMatches(matchers, values2));
313   EXPECT_FALSE(TupleMatches(matchers, values3));
314   EXPECT_FALSE(TupleMatches(matchers, values4));
315 }
316 
317 TEST(TupleMatchesTest, WorksForSize5) {
318   std::tuple<Matcher<int>, Matcher<char>, Matcher<bool>,
319              Matcher<long>,  // NOLINT
320              Matcher<std::string>>
321       matchers(Eq(1), Eq('a'), Eq(true), Eq(2L), Eq("hi"));
322   std::tuple<int, char, bool, long, std::string>  // NOLINT
323       values1(1, 'a', true, 2L, "hi"), values2(1, 'a', true, 2L, "hello"),
324       values3(2, 'a', true, 2L, "hi");
325 
326   EXPECT_TRUE(TupleMatches(matchers, values1));
327   EXPECT_FALSE(TupleMatches(matchers, values2));
328   EXPECT_FALSE(TupleMatches(matchers, values3));
329 }
330 
331 // Tests that Assert(true, ...) succeeds.
332 TEST(AssertTest, SucceedsOnTrue) {
333   Assert(true, __FILE__, __LINE__, "This should succeed.");
334   Assert(true, __FILE__, __LINE__);  // This should succeed too.
335 }
336 
337 // Tests that Assert(false, ...) generates a fatal failure.
338 TEST(AssertTest, FailsFatallyOnFalse) {
339   EXPECT_DEATH_IF_SUPPORTED(
340       { Assert(false, __FILE__, __LINE__, "This should fail."); }, "");
341 
342   EXPECT_DEATH_IF_SUPPORTED({ Assert(false, __FILE__, __LINE__); }, "");
343 }
344 
345 // Tests that Expect(true, ...) succeeds.
346 TEST(ExpectTest, SucceedsOnTrue) {
347   Expect(true, __FILE__, __LINE__, "This should succeed.");
348   Expect(true, __FILE__, __LINE__);  // This should succeed too.
349 }
350 
351 // Tests that Expect(false, ...) generates a non-fatal failure.
352 TEST(ExpectTest, FailsNonfatallyOnFalse) {
353   EXPECT_NONFATAL_FAILURE(
354       {  // NOLINT
355         Expect(false, __FILE__, __LINE__, "This should fail.");
356       },
357       "This should fail");
358 
359   EXPECT_NONFATAL_FAILURE(
360       {  // NOLINT
361         Expect(false, __FILE__, __LINE__);
362       },
363       "Expectation failed");
364 }
365 
366 // Tests LogIsVisible().
367 
368 class LogIsVisibleTest : public ::testing::Test {
369  protected:
370   void SetUp() override { original_verbose_ = GMOCK_FLAG_GET(verbose); }
371 
372   void TearDown() override { GMOCK_FLAG_SET(verbose, original_verbose_); }
373 
374   std::string original_verbose_;
375 };
376 
377 TEST_F(LogIsVisibleTest, AlwaysReturnsTrueIfVerbosityIsInfo) {
378   GMOCK_FLAG_SET(verbose, kInfoVerbosity);
379   EXPECT_TRUE(LogIsVisible(kInfo));
380   EXPECT_TRUE(LogIsVisible(kWarning));
381 }
382 
383 TEST_F(LogIsVisibleTest, AlwaysReturnsFalseIfVerbosityIsError) {
384   GMOCK_FLAG_SET(verbose, kErrorVerbosity);
385   EXPECT_FALSE(LogIsVisible(kInfo));
386   EXPECT_FALSE(LogIsVisible(kWarning));
387 }
388 
389 TEST_F(LogIsVisibleTest, WorksWhenVerbosityIsWarning) {
390   GMOCK_FLAG_SET(verbose, kWarningVerbosity);
391   EXPECT_FALSE(LogIsVisible(kInfo));
392   EXPECT_TRUE(LogIsVisible(kWarning));
393 }
394 
395 #if GTEST_HAS_STREAM_REDIRECTION
396 
397 // Tests the Log() function.
398 
399 // Verifies that Log() behaves correctly for the given verbosity level
400 // and log severity.
401 void TestLogWithSeverity(const std::string& verbosity, LogSeverity severity,
402                          bool should_print) {
403   const std::string old_flag = GMOCK_FLAG_GET(verbose);
404   GMOCK_FLAG_SET(verbose, verbosity);
405   CaptureStdout();
406   Log(severity, "Test log.\n", 0);
407   if (should_print) {
408     EXPECT_THAT(
409         GetCapturedStdout().c_str(),
410         ContainsRegex(severity == kWarning
411                           ? "^\nGMOCK WARNING:\nTest log\\.\nStack trace:\n"
412                           : "^\nTest log\\.\nStack trace:\n"));
413   } else {
414     EXPECT_STREQ("", GetCapturedStdout().c_str());
415   }
416   GMOCK_FLAG_SET(verbose, old_flag);
417 }
418 
419 // Tests that when the stack_frames_to_skip parameter is negative,
420 // Log() doesn't include the stack trace in the output.
421 TEST(LogTest, NoStackTraceWhenStackFramesToSkipIsNegative) {
422   const std::string saved_flag = GMOCK_FLAG_GET(verbose);
423   GMOCK_FLAG_SET(verbose, kInfoVerbosity);
424   CaptureStdout();
425   Log(kInfo, "Test log.\n", -1);
426   EXPECT_STREQ("\nTest log.\n", GetCapturedStdout().c_str());
427   GMOCK_FLAG_SET(verbose, saved_flag);
428 }
429 
430 struct MockStackTraceGetter : testing::internal::OsStackTraceGetterInterface {
431   std::string CurrentStackTrace(int max_depth, int skip_count) override {
432     return (testing::Message() << max_depth << "::" << skip_count << "\n")
433         .GetString();
434   }
435   void UponLeavingGTest() override {}
436 };
437 
438 // Tests that in opt mode, a positive stack_frames_to_skip argument is
439 // treated as 0.
440 TEST(LogTest, NoSkippingStackFrameInOptMode) {
441   MockStackTraceGetter* mock_os_stack_trace_getter = new MockStackTraceGetter;
442   GetUnitTestImpl()->set_os_stack_trace_getter(mock_os_stack_trace_getter);
443 
444   CaptureStdout();
445   Log(kWarning, "Test log.\n", 100);
446   const std::string log = GetCapturedStdout();
447 
448   std::string expected_trace =
449       (testing::Message() << GTEST_FLAG_GET(stack_trace_depth) << "::")
450           .GetString();
451   std::string expected_message =
452       "\nGMOCK WARNING:\n"
453       "Test log.\n"
454       "Stack trace:\n" +
455       expected_trace;
456   EXPECT_THAT(log, HasSubstr(expected_message));
457   int skip_count = atoi(log.substr(expected_message.size()).c_str());
458 
459 #if defined(NDEBUG)
460   // In opt mode, no stack frame should be skipped.
461   const int expected_skip_count = 0;
462 #else
463   // In dbg mode, the stack frames should be skipped.
464   const int expected_skip_count = 100;
465 #endif
466 
467   // Note that each inner implementation layer will +1 the number to remove
468   // itself from the trace. This means that the value is a little higher than
469   // expected, but close enough.
470   EXPECT_THAT(skip_count,
471               AllOf(Ge(expected_skip_count), Le(expected_skip_count + 10)));
472 
473   // Restores the default OS stack trace getter.
474   GetUnitTestImpl()->set_os_stack_trace_getter(nullptr);
475 }
476 
477 // Tests that all logs are printed when the value of the
478 // --gmock_verbose flag is "info".
479 TEST(LogTest, AllLogsArePrintedWhenVerbosityIsInfo) {
480   TestLogWithSeverity(kInfoVerbosity, kInfo, true);
481   TestLogWithSeverity(kInfoVerbosity, kWarning, true);
482 }
483 
484 // Tests that only warnings are printed when the value of the
485 // --gmock_verbose flag is "warning".
486 TEST(LogTest, OnlyWarningsArePrintedWhenVerbosityIsWarning) {
487   TestLogWithSeverity(kWarningVerbosity, kInfo, false);
488   TestLogWithSeverity(kWarningVerbosity, kWarning, true);
489 }
490 
491 // Tests that no logs are printed when the value of the
492 // --gmock_verbose flag is "error".
493 TEST(LogTest, NoLogsArePrintedWhenVerbosityIsError) {
494   TestLogWithSeverity(kErrorVerbosity, kInfo, false);
495   TestLogWithSeverity(kErrorVerbosity, kWarning, false);
496 }
497 
498 // Tests that only warnings are printed when the value of the
499 // --gmock_verbose flag is invalid.
500 TEST(LogTest, OnlyWarningsArePrintedWhenVerbosityIsInvalid) {
501   TestLogWithSeverity("invalid", kInfo, false);
502   TestLogWithSeverity("invalid", kWarning, true);
503 }
504 
505 // Verifies that Log() behaves correctly for the given verbosity level
506 // and log severity.
507 std::string GrabOutput(void (*logger)(), const char* verbosity) {
508   const std::string saved_flag = GMOCK_FLAG_GET(verbose);
509   GMOCK_FLAG_SET(verbose, verbosity);
510   CaptureStdout();
511   logger();
512   GMOCK_FLAG_SET(verbose, saved_flag);
513   return GetCapturedStdout();
514 }
515 
516 class DummyMock {
517  public:
518   MOCK_METHOD0(TestMethod, void());
519   MOCK_METHOD1(TestMethodArg, void(int dummy));
520 };
521 
522 void ExpectCallLogger() {
523   DummyMock mock;
524   EXPECT_CALL(mock, TestMethod());
525   mock.TestMethod();
526 }
527 
528 // Verifies that EXPECT_CALL logs if the --gmock_verbose flag is set to "info".
529 TEST(ExpectCallTest, LogsWhenVerbosityIsInfo) {
530   EXPECT_THAT(std::string(GrabOutput(ExpectCallLogger, kInfoVerbosity)),
531               HasSubstr("EXPECT_CALL(mock, TestMethod())"));
532 }
533 
534 // Verifies that EXPECT_CALL doesn't log
535 // if the --gmock_verbose flag is set to "warning".
536 TEST(ExpectCallTest, DoesNotLogWhenVerbosityIsWarning) {
537   EXPECT_STREQ("", GrabOutput(ExpectCallLogger, kWarningVerbosity).c_str());
538 }
539 
540 // Verifies that EXPECT_CALL doesn't log
541 // if the --gmock_verbose flag is set to "error".
542 TEST(ExpectCallTest, DoesNotLogWhenVerbosityIsError) {
543   EXPECT_STREQ("", GrabOutput(ExpectCallLogger, kErrorVerbosity).c_str());
544 }
545 
546 void OnCallLogger() {
547   DummyMock mock;
548   ON_CALL(mock, TestMethod());
549 }
550 
551 // Verifies that ON_CALL logs if the --gmock_verbose flag is set to "info".
552 TEST(OnCallTest, LogsWhenVerbosityIsInfo) {
553   EXPECT_THAT(std::string(GrabOutput(OnCallLogger, kInfoVerbosity)),
554               HasSubstr("ON_CALL(mock, TestMethod())"));
555 }
556 
557 // Verifies that ON_CALL doesn't log
558 // if the --gmock_verbose flag is set to "warning".
559 TEST(OnCallTest, DoesNotLogWhenVerbosityIsWarning) {
560   EXPECT_STREQ("", GrabOutput(OnCallLogger, kWarningVerbosity).c_str());
561 }
562 
563 // Verifies that ON_CALL doesn't log if
564 // the --gmock_verbose flag is set to "error".
565 TEST(OnCallTest, DoesNotLogWhenVerbosityIsError) {
566   EXPECT_STREQ("", GrabOutput(OnCallLogger, kErrorVerbosity).c_str());
567 }
568 
569 void OnCallAnyArgumentLogger() {
570   DummyMock mock;
571   ON_CALL(mock, TestMethodArg(_));
572 }
573 
574 // Verifies that ON_CALL prints provided _ argument.
575 TEST(OnCallTest, LogsAnythingArgument) {
576   EXPECT_THAT(std::string(GrabOutput(OnCallAnyArgumentLogger, kInfoVerbosity)),
577               HasSubstr("ON_CALL(mock, TestMethodArg(_)"));
578 }
579 
580 #endif  // GTEST_HAS_STREAM_REDIRECTION
581 
582 // Tests StlContainerView.
583 
584 TEST(StlContainerViewTest, WorksForStlContainer) {
585   StaticAssertTypeEq<std::vector<int>,
586                      StlContainerView<std::vector<int>>::type>();
587   StaticAssertTypeEq<const std::vector<double>&,
588                      StlContainerView<std::vector<double>>::const_reference>();
589 
590   typedef std::vector<char> Chars;
591   Chars v1;
592   const Chars& v2(StlContainerView<Chars>::ConstReference(v1));
593   EXPECT_EQ(&v1, &v2);
594 
595   v1.push_back('a');
596   Chars v3 = StlContainerView<Chars>::Copy(v1);
597   EXPECT_THAT(v3, Eq(v3));
598 }
599 
600 TEST(StlContainerViewTest, WorksForStaticNativeArray) {
601   StaticAssertTypeEq<NativeArray<int>, StlContainerView<int[3]>::type>();
602   StaticAssertTypeEq<NativeArray<double>,
603                      StlContainerView<const double[4]>::type>();
604   StaticAssertTypeEq<NativeArray<char[3]>,
605                      StlContainerView<const char[2][3]>::type>();
606 
607   StaticAssertTypeEq<const NativeArray<int>,
608                      StlContainerView<int[2]>::const_reference>();
609 
610   int a1[3] = {0, 1, 2};
611   NativeArray<int> a2 = StlContainerView<int[3]>::ConstReference(a1);
612   EXPECT_EQ(3U, a2.size());
613   EXPECT_EQ(a1, a2.begin());
614 
615   const NativeArray<int> a3 = StlContainerView<int[3]>::Copy(a1);
616   ASSERT_EQ(3U, a3.size());
617   EXPECT_EQ(0, a3.begin()[0]);
618   EXPECT_EQ(1, a3.begin()[1]);
619   EXPECT_EQ(2, a3.begin()[2]);
620 
621   // Makes sure a1 and a3 aren't aliases.
622   a1[0] = 3;
623   EXPECT_EQ(0, a3.begin()[0]);
624 }
625 
626 TEST(StlContainerViewTest, WorksForDynamicNativeArray) {
627   StaticAssertTypeEq<NativeArray<int>,
628                      StlContainerView<std::tuple<const int*, size_t>>::type>();
629   StaticAssertTypeEq<
630       NativeArray<double>,
631       StlContainerView<std::tuple<std::shared_ptr<double>, int>>::type>();
632 
633   StaticAssertTypeEq<
634       const NativeArray<int>,
635       StlContainerView<std::tuple<const int*, int>>::const_reference>();
636 
637   int a1[3] = {0, 1, 2};
638   const int* const p1 = a1;
639   NativeArray<int> a2 =
640       StlContainerView<std::tuple<const int*, int>>::ConstReference(
641           std::make_tuple(p1, 3));
642   EXPECT_EQ(3U, a2.size());
643   EXPECT_EQ(a1, a2.begin());
644 
645   const NativeArray<int> a3 = StlContainerView<std::tuple<int*, size_t>>::Copy(
646       std::make_tuple(static_cast<int*>(a1), 3));
647   ASSERT_EQ(3U, a3.size());
648   EXPECT_EQ(0, a3.begin()[0]);
649   EXPECT_EQ(1, a3.begin()[1]);
650   EXPECT_EQ(2, a3.begin()[2]);
651 
652   // Makes sure a1 and a3 aren't aliases.
653   a1[0] = 3;
654   EXPECT_EQ(0, a3.begin()[0]);
655 }
656 
657 // Tests the Function template struct.
658 
659 TEST(FunctionTest, Nullary) {
660   typedef Function<int()> F;  // NOLINT
661   EXPECT_EQ(0u, F::ArgumentCount);
662   EXPECT_TRUE((std::is_same<int, F::Result>::value));
663   EXPECT_TRUE((std::is_same<std::tuple<>, F::ArgumentTuple>::value));
664   EXPECT_TRUE((std::is_same<std::tuple<>, F::ArgumentMatcherTuple>::value));
665   EXPECT_TRUE((std::is_same<void(), F::MakeResultVoid>::value));
666   EXPECT_TRUE((std::is_same<IgnoredValue(), F::MakeResultIgnoredValue>::value));
667 }
668 
669 TEST(FunctionTest, Unary) {
670   typedef Function<int(bool)> F;  // NOLINT
671   EXPECT_EQ(1u, F::ArgumentCount);
672   EXPECT_TRUE((std::is_same<int, F::Result>::value));
673   EXPECT_TRUE((std::is_same<bool, F::Arg<0>::type>::value));
674   EXPECT_TRUE((std::is_same<std::tuple<bool>, F::ArgumentTuple>::value));
675   EXPECT_TRUE((
676       std::is_same<std::tuple<Matcher<bool>>, F::ArgumentMatcherTuple>::value));
677   EXPECT_TRUE((std::is_same<void(bool), F::MakeResultVoid>::value));  // NOLINT
678   EXPECT_TRUE((std::is_same<IgnoredValue(bool),                       // NOLINT
679                             F::MakeResultIgnoredValue>::value));
680 }
681 
682 TEST(FunctionTest, Binary) {
683   typedef Function<int(bool, const long&)> F;  // NOLINT
684   EXPECT_EQ(2u, F::ArgumentCount);
685   EXPECT_TRUE((std::is_same<int, F::Result>::value));
686   EXPECT_TRUE((std::is_same<bool, F::Arg<0>::type>::value));
687   EXPECT_TRUE((std::is_same<const long&, F::Arg<1>::type>::value));  // NOLINT
688   EXPECT_TRUE((std::is_same<std::tuple<bool, const long&>,           // NOLINT
689                             F::ArgumentTuple>::value));
690   EXPECT_TRUE(
691       (std::is_same<std::tuple<Matcher<bool>, Matcher<const long&>>,  // NOLINT
692                     F::ArgumentMatcherTuple>::value));
693   EXPECT_TRUE((std::is_same<void(bool, const long&),  // NOLINT
694                             F::MakeResultVoid>::value));
695   EXPECT_TRUE((std::is_same<IgnoredValue(bool, const long&),  // NOLINT
696                             F::MakeResultIgnoredValue>::value));
697 }
698 
699 TEST(FunctionTest, LongArgumentList) {
700   typedef Function<char(bool, int, char*, int&, const long&)> F;  // NOLINT
701   EXPECT_EQ(5u, F::ArgumentCount);
702   EXPECT_TRUE((std::is_same<char, F::Result>::value));
703   EXPECT_TRUE((std::is_same<bool, F::Arg<0>::type>::value));
704   EXPECT_TRUE((std::is_same<int, F::Arg<1>::type>::value));
705   EXPECT_TRUE((std::is_same<char*, F::Arg<2>::type>::value));
706   EXPECT_TRUE((std::is_same<int&, F::Arg<3>::type>::value));
707   EXPECT_TRUE((std::is_same<const long&, F::Arg<4>::type>::value));  // NOLINT
708   EXPECT_TRUE(
709       (std::is_same<std::tuple<bool, int, char*, int&, const long&>,  // NOLINT
710                     F::ArgumentTuple>::value));
711   EXPECT_TRUE(
712       (std::is_same<
713           std::tuple<Matcher<bool>, Matcher<int>, Matcher<char*>, Matcher<int&>,
714                      Matcher<const long&>>,  // NOLINT
715           F::ArgumentMatcherTuple>::value));
716   EXPECT_TRUE(
717       (std::is_same<void(bool, int, char*, int&, const long&),  // NOLINT
718                     F::MakeResultVoid>::value));
719   EXPECT_TRUE((
720       std::is_same<IgnoredValue(bool, int, char*, int&, const long&),  // NOLINT
721                    F::MakeResultIgnoredValue>::value));
722 }
723 
724 TEST(Base64Unescape, InvalidString) {
725   std::string unescaped;
726   EXPECT_FALSE(Base64Unescape("(invalid)", &unescaped));
727 }
728 
729 TEST(Base64Unescape, ShortString) {
730   std::string unescaped;
731   EXPECT_TRUE(Base64Unescape("SGVsbG8gd29ybGQh", &unescaped));
732   EXPECT_EQ("Hello world!", unescaped);
733 }
734 
735 TEST(Base64Unescape, ShortStringWithPadding) {
736   std::string unescaped;
737   EXPECT_TRUE(Base64Unescape("SGVsbG8gd29ybGQ=", &unescaped));
738   EXPECT_EQ("Hello world", unescaped);
739 }
740 
741 TEST(Base64Unescape, ShortStringWithoutPadding) {
742   std::string unescaped;
743   EXPECT_TRUE(Base64Unescape("SGVsbG8gd29ybGQ", &unescaped));
744   EXPECT_EQ("Hello world", unescaped);
745 }
746 
747 TEST(Base64Unescape, LongStringWithWhiteSpaces) {
748   std::string escaped =
749       R"(TWFuIGlzIGRpc3Rpbmd1aXNoZWQsIG5vdCBvbmx5IGJ5IGhpcyByZWFzb24sIGJ1dCBieSB0aGlz
750   IHNpbmd1bGFyIHBhc3Npb24gZnJvbSBvdGhlciBhbmltYWxzLCB3aGljaCBpcyBhIGx1c3Qgb2Yg
751   dGhlIG1pbmQsIHRoYXQgYnkgYSBwZXJzZXZlcmFuY2Ugb2YgZGVsaWdodCBpbiB0aGUgY29udGlu
752   dWVkIGFuZCBpbmRlZmF0aWdhYmxlIGdlbmVyYXRpb24gb2Yga25vd2xlZGdlLCBleGNlZWRzIHRo
753   ZSBzaG9ydCB2ZWhlbWVuY2Ugb2YgYW55IGNhcm5hbCBwbGVhc3VyZS4=)";
754   std::string expected =
755       "Man is distinguished, not only by his reason, but by this singular "
756       "passion from other animals, which is a lust of the mind, that by a "
757       "perseverance of delight in the continued and indefatigable generation "
758       "of knowledge, exceeds the short vehemence of any carnal pleasure.";
759   std::string unescaped;
760   EXPECT_TRUE(Base64Unescape(escaped, &unescaped));
761   EXPECT_EQ(expected, unescaped);
762 }
763 
764 }  // namespace
765 }  // namespace internal
766 }  // namespace testing
767