gtest-spi.h
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29 //
30 // Author: wan@google.com (Zhanyong Wan)
31 //
32 // Utilities for testing Google Test itself and code that uses Google Test
33 // (e.g. frameworks built on top of Google Test).
34 
35 #ifndef GTEST_INCLUDE_GTEST_GTEST_SPI_H_
36 #define GTEST_INCLUDE_GTEST_GTEST_SPI_H_
37 
38 #include "gtest/gtest.h"
39 
40 namespace testing {
41 
42 // This helper class can be used to mock out Google Test failure reporting
43 // so that we can test Google Test or code that builds on Google Test.
44 //
45 // An object of this class appends a TestPartResult object to the
46 // TestPartResultArray object given in the constructor whenever a Google Test
47 // failure is reported. It can either intercept only failures that are
48 // generated in the same thread that created this object or it can intercept
49 // all generated failures. The scope of this mock object can be controlled with
50 // the second argument to the two arguments constructor.
53  public:
54  // The two possible mocking modes of this object.
56  INTERCEPT_ONLY_CURRENT_THREAD, // Intercepts only thread local failures.
57  INTERCEPT_ALL_THREADS // Intercepts all failures.
58  };
59 
60  // The c'tor sets this object as the test part result reporter used
61  // by Google Test. The 'result' parameter specifies where to report the
62  // results. This reporter will only catch failures generated in the current
63  // thread. DEPRECATED
65 
66  // Same as above, but you can choose the interception scope of this object.
67  ScopedFakeTestPartResultReporter(InterceptMode intercept_mode,
68  TestPartResultArray* result);
69 
70  // The d'tor restores the previous test part result reporter.
72 
73  // Appends the TestPartResult object to the TestPartResultArray
74  // received in the constructor.
75  //
76  // This method is from the TestPartResultReporterInterface
77  // interface.
78  virtual void ReportTestPartResult(const TestPartResult& result);
79  private:
80  void Init();
81 
85 
87 };
88 
89 namespace internal {
90 
91 // A helper class for implementing EXPECT_FATAL_FAILURE() and
92 // EXPECT_NONFATAL_FAILURE(). Its destructor verifies that the given
93 // TestPartResultArray contains exactly one failure that has the given
94 // type and contains the given substring. If that's not the case, a
95 // non-fatal failure will be generated.
97  public:
98  // The constructor remembers the arguments.
101  const string& substr);
103  private:
106  const string substr_;
107 
109 };
110 
111 } // namespace internal
112 
113 } // namespace testing
114 
115 // A set of macros for testing Google Test assertions or code that's expected
116 // to generate Google Test fatal failures. It verifies that the given
117 // statement will cause exactly one fatal Google Test failure with 'substr'
118 // being part of the failure message.
119 //
120 // There are two different versions of this macro. EXPECT_FATAL_FAILURE only
121 // affects and considers failures generated in the current thread and
122 // EXPECT_FATAL_FAILURE_ON_ALL_THREADS does the same but for all threads.
123 //
124 // The verification of the assertion is done correctly even when the statement
125 // throws an exception or aborts the current function.
126 //
127 // Known restrictions:
128 // - 'statement' cannot reference local non-static variables or
129 // non-static members of the current object.
130 // - 'statement' cannot return a value.
131 // - You cannot stream a failure message to this macro.
132 //
133 // Note that even though the implementations of the following two
134 // macros are much alike, we cannot refactor them to use a common
135 // helper macro, due to some peculiarity in how the preprocessor
136 // works. The AcceptsMacroThatExpandsToUnprotectedComma test in
137 // gtest_unittest.cc will fail to compile if we do that.
138 #define EXPECT_FATAL_FAILURE(statement, substr) \
139  do { \
140  class GTestExpectFatalFailureHelper {\
141  public:\
142  static void Execute() { statement; }\
143  };\
144  ::testing::TestPartResultArray gtest_failures;\
145  ::testing::internal::SingleFailureChecker gtest_checker(\
146  &gtest_failures, ::testing::TestPartResult::kFatalFailure, (substr));\
147  {\
148  ::testing::ScopedFakeTestPartResultReporter gtest_reporter(\
149  ::testing::ScopedFakeTestPartResultReporter:: \
150  INTERCEPT_ONLY_CURRENT_THREAD, &gtest_failures);\
151  GTestExpectFatalFailureHelper::Execute();\
152  }\
153  } while (::testing::internal::AlwaysFalse())
154 
155 #define EXPECT_FATAL_FAILURE_ON_ALL_THREADS(statement, substr) \
156  do { \
157  class GTestExpectFatalFailureHelper {\
158  public:\
159  static void Execute() { statement; }\
160  };\
161  ::testing::TestPartResultArray gtest_failures;\
162  ::testing::internal::SingleFailureChecker gtest_checker(\
163  &gtest_failures, ::testing::TestPartResult::kFatalFailure, (substr));\
164  {\
165  ::testing::ScopedFakeTestPartResultReporter gtest_reporter(\
166  ::testing::ScopedFakeTestPartResultReporter:: \
167  INTERCEPT_ALL_THREADS, &gtest_failures);\
168  GTestExpectFatalFailureHelper::Execute();\
169  }\
170  } while (::testing::internal::AlwaysFalse())
171 
172 // A macro for testing Google Test assertions or code that's expected to
173 // generate Google Test non-fatal failures. It asserts that the given
174 // statement will cause exactly one non-fatal Google Test failure with 'substr'
175 // being part of the failure message.
176 //
177 // There are two different versions of this macro. EXPECT_NONFATAL_FAILURE only
178 // affects and considers failures generated in the current thread and
179 // EXPECT_NONFATAL_FAILURE_ON_ALL_THREADS does the same but for all threads.
180 //
181 // 'statement' is allowed to reference local variables and members of
182 // the current object.
183 //
184 // The verification of the assertion is done correctly even when the statement
185 // throws an exception or aborts the current function.
186 //
187 // Known restrictions:
188 // - You cannot stream a failure message to this macro.
189 //
190 // Note that even though the implementations of the following two
191 // macros are much alike, we cannot refactor them to use a common
192 // helper macro, due to some peculiarity in how the preprocessor
193 // works. If we do that, the code won't compile when the user gives
194 // EXPECT_NONFATAL_FAILURE() a statement that contains a macro that
195 // expands to code containing an unprotected comma. The
196 // AcceptsMacroThatExpandsToUnprotectedComma test in gtest_unittest.cc
197 // catches that.
198 //
199 // For the same reason, we have to write
200 // if (::testing::internal::AlwaysTrue()) { statement; }
201 // instead of
202 // GTEST_SUPPRESS_UNREACHABLE_CODE_WARNING_BELOW_(statement)
203 // to avoid an MSVC warning on unreachable code.
204 #define EXPECT_NONFATAL_FAILURE(statement, substr) \
205  do {\
206  ::testing::TestPartResultArray gtest_failures;\
207  ::testing::internal::SingleFailureChecker gtest_checker(\
208  &gtest_failures, ::testing::TestPartResult::kNonFatalFailure, \
209  (substr));\
210  {\
211  ::testing::ScopedFakeTestPartResultReporter gtest_reporter(\
212  ::testing::ScopedFakeTestPartResultReporter:: \
213  INTERCEPT_ONLY_CURRENT_THREAD, &gtest_failures);\
214  if (::testing::internal::AlwaysTrue()) { statement; }\
215  }\
216  } while (::testing::internal::AlwaysFalse())
217 
218 #define EXPECT_NONFATAL_FAILURE_ON_ALL_THREADS(statement, substr) \
219  do {\
220  ::testing::TestPartResultArray gtest_failures;\
221  ::testing::internal::SingleFailureChecker gtest_checker(\
222  &gtest_failures, ::testing::TestPartResult::kNonFatalFailure, \
223  (substr));\
224  {\
225  ::testing::ScopedFakeTestPartResultReporter gtest_reporter(\
226  ::testing::ScopedFakeTestPartResultReporter::INTERCEPT_ALL_THREADS, \
227  &gtest_failures);\
228  if (::testing::internal::AlwaysTrue()) { statement; }\
229  }\
230  } while (::testing::internal::AlwaysFalse())
231 
232 #endif // GTEST_INCLUDE_GTEST_GTEST_SPI_H_
testing::ScopedFakeTestPartResultReporter::old_reporter_
TestPartResultReporterInterface * old_reporter_
Definition: gtest-spi.h:83
testing
Definition: gtest-death-test.h:43
testing::TestPartResult
Definition: gtest-test-part.h:47
testing::ScopedFakeTestPartResultReporter
Definition: gtest-spi.h:51
testing::internal::SingleFailureChecker
Definition: gtest-spi.h:96
gtest.h
testing::TestPartResultArray
Definition: gtest-test-part.h:126
testing::ScopedFakeTestPartResultReporter::intercept_mode_
const InterceptMode intercept_mode_
Definition: gtest-spi.h:82
testing::TestPartResult::Type
Type
Definition: gtest-test-part.h:51
testing::internal::SingleFailureChecker::results_
const TestPartResultArray *const results_
Definition: gtest-spi.h:104
GTEST_API_
#define GTEST_API_
Definition: gtest-port.h:771
testing::ScopedFakeTestPartResultReporter::result_
TestPartResultArray *const result_
Definition: gtest-spi.h:84
testing::TestPartResultReporterInterface
Definition: gtest-test-part.h:146
testing::internal::SingleFailureChecker::substr_
const string substr_
Definition: gtest-spi.h:106
testing::internal::SingleFailureChecker::type_
const TestPartResult::Type type_
Definition: gtest-spi.h:105
testing::ScopedFakeTestPartResultReporter::INTERCEPT_ONLY_CURRENT_THREAD
@ INTERCEPT_ONLY_CURRENT_THREAD
Definition: gtest-spi.h:56
GTEST_DISALLOW_COPY_AND_ASSIGN_
#define GTEST_DISALLOW_COPY_AND_ASSIGN_(type)
Definition: gtest-port.h:729
testing::ScopedFakeTestPartResultReporter::InterceptMode
InterceptMode
Definition: gtest-spi.h:55


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autogenerated on Fri Jun 11 2021 02:38:03