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gtest.h
1 // Copyright 2005, Google Inc.
2 // All rights reserved.
3 //
4 // Redistribution and use in source and binary forms, with or without
5 // modification, are permitted provided that the following conditions are
6 // met:
7 //
8 // * Redistributions of source code must retain the above copyright
9 // notice, this list of conditions and the following disclaimer.
10 // * Redistributions in binary form must reproduce the above
11 // copyright notice, this list of conditions and the following disclaimer
12 // in the documentation and/or other materials provided with the
13 // distribution.
14 // * Neither the name of Google Inc. nor the names of its
15 // contributors may be used to endorse or promote products derived from
16 // this software without specific prior written permission.
17 //
18 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 //
30 // Author: wan@google.com (Zhanyong Wan)
31 //
32 // The Google C++ Testing Framework (Google Test)
33 //
34 // This header file defines the public API for Google Test. It should be
35 // included by any test program that uses Google Test.
36 //
37 // IMPORTANT NOTE: Due to limitation of the C++ language, we have to
38 // leave some internal implementation details in this header file.
39 // They are clearly marked by comments like this:
40 //
41 // // INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
42 //
43 // Such code is NOT meant to be used by a user directly, and is subject
44 // to CHANGE WITHOUT NOTICE. Therefore DO NOT DEPEND ON IT in a user
45 // program!
46 //
47 // Acknowledgment: Google Test borrowed the idea of automatic test
48 // registration from Barthelemy Dagenais' (barthelemy@prologique.com)
49 // easyUnit framework.
50
51 #ifndef GTEST_INCLUDE_GTEST_GTEST_H_
52 #define GTEST_INCLUDE_GTEST_GTEST_H_
53
54 #include <limits>
55 #include <ostream>
56 #include <vector>
57
58 #include "gtest/internal/gtest-internal.h"
59 #include "gtest/internal/gtest-string.h"
60 #include "gtest/gtest-death-test.h"
61 #include "gtest/gtest-message.h"
62 #include "gtest/gtest-param-test.h"
63 #include "gtest/gtest-printers.h"
64 #include "gtest/gtest_prod.h"
65 #include "gtest/gtest-test-part.h"
66 #include "gtest/gtest-typed-test.h"
67
68 // Depending on the platform, different string classes are available.
69 // On Linux, in addition to ::std::string, Google also makes use of
70 // class ::string, which has the same interface as ::std::string, but
71 // has a different implementation.
72 //
73 // You can define GTEST_HAS_GLOBAL_STRING to 1 to indicate that
74 // ::string is available AND is a distinct type to ::std::string, or
75 // define it to 0 to indicate otherwise.
76 //
77 // If ::std::string and ::string are the same class on your platform
78 // due to aliasing, you should define GTEST_HAS_GLOBAL_STRING to 0.
79 //
80 // If you do not define GTEST_HAS_GLOBAL_STRING, it is defined
81 // heuristically.
82
83 namespace testing {
84
85 // Declares the flags.
86
87 // This flag temporary enables the disabled tests.
88 GTEST_DECLARE_bool_(also_run_disabled_tests);
89
90 // This flag brings the debugger on an assertion failure.
91 GTEST_DECLARE_bool_(break_on_failure);
92
93 // This flag controls whether Google Test catches all test-thrown exceptions
94 // and logs them as failures.
95 GTEST_DECLARE_bool_(catch_exceptions);
96
97 // This flag enables using colors in terminal output. Available values are
98 // "yes" to enable colors, "no" (disable colors), or "auto" (the default)
99 // to let Google Test decide.
100 GTEST_DECLARE_string_(color);
101
102 // This flag sets up the filter to select by name using a glob pattern
103 // the tests to run. If the filter is not given all tests are executed.
104 GTEST_DECLARE_string_(filter);
105
106 // This flag causes the Google Test to list tests. None of the tests listed
107 // are actually run if the flag is provided.
108 GTEST_DECLARE_bool_(list_tests);
109
110 // This flag controls whether Google Test emits a detailed XML report to a file
111 // in addition to its normal textual output.
112 GTEST_DECLARE_string_(output);
113
114 // This flags control whether Google Test prints the elapsed time for each
115 // test.
116 GTEST_DECLARE_bool_(print_time);
117
118 // This flag specifies the random number seed.
119 GTEST_DECLARE_int32_(random_seed);
120
121 // This flag sets how many times the tests are repeated. The default value
122 // is 1. If the value is -1 the tests are repeating forever.
123 GTEST_DECLARE_int32_(repeat);
124
125 // This flag controls whether Google Test includes Google Test internal
126 // stack frames in failure stack traces.
127 GTEST_DECLARE_bool_(show_internal_stack_frames);
128
129 // When this flag is specified, tests' order is randomized on every iteration.
130 GTEST_DECLARE_bool_(shuffle);
131
132 // This flag specifies the maximum number of stack frames to be
133 // printed in a failure message.
134 GTEST_DECLARE_int32_(stack_trace_depth);
135
136 // When this flag is specified, a failed assertion will throw an
137 // exception if exceptions are enabled, or exit the program with a
138 // non-zero code otherwise.
139 GTEST_DECLARE_bool_(throw_on_failure);
140
141 // When this flag is set with a "host:port" string, on supported
142 // platforms test results are streamed to the specified port on
143 // the specified host machine.
144 GTEST_DECLARE_string_(stream_result_to);
145
146 // The upper limit for valid stack trace depths.
147 const int kMaxStackTraceDepth = 100;
148
149 namespace internal {
150
151 class AssertHelper;
152 class DefaultGlobalTestPartResultReporter;
153 class ExecDeathTest;
154 class NoExecDeathTest;
155 class FinalSuccessChecker;
156 class GTestFlagSaver;
157 class StreamingListenerTest;
158 class TestResultAccessor;
159 class TestEventListenersAccessor;
160 class TestEventRepeater;
161 class UnitTestRecordPropertyTestHelper;
162 class WindowsDeathTest;
163 class UnitTestImpl* GetUnitTestImpl();
164 void ReportFailureInUnknownLocation(TestPartResult::Type result_type,
165 const std::string& message);
166
167 } // namespace internal
168
169 // The friend relationship of some of these classes is cyclic.
170 // If we don't forward declare them the compiler might confuse the classes
171 // in friendship clauses with same named classes on the scope.
172 class Test;
173 class TestCase;
174 class TestInfo;
175 class UnitTest;
176
177 // A class for indicating whether an assertion was successful. When
178 // the assertion wasn't successful, the AssertionResult object
179 // remembers a non-empty message that describes how it failed.
180 //
181 // To create an instance of this class, use one of the factory functions
182 // (AssertionSuccess() and AssertionFailure()).
183 //
184 // This class is useful for two purposes:
185 // 1. Defining predicate functions to be used with Boolean test assertions
186 // EXPECT_TRUE/EXPECT_FALSE and their ASSERT_ counterparts
187 // 2. Defining predicate-format functions to be
188 // used with predicate assertions (ASSERT_PRED_FORMAT*, etc).
189 //
190 // For example, if you define IsEven predicate:
191 //
192 // testing::AssertionResult IsEven(int n) {
193 // if ((n % 2) == 0)
194 // return testing::AssertionSuccess();
195 // else
196 // return testing::AssertionFailure() << n << " is odd";
197 // }
198 //
199 // Then the failed expectation EXPECT_TRUE(IsEven(Fib(5)))
200 // will print the message
201 //
202 // Value of: IsEven(Fib(5))
203 // Actual: false (5 is odd)
204 // Expected: true
205 //
206 // instead of a more opaque
207 //
208 // Value of: IsEven(Fib(5))
209 // Actual: false
210 // Expected: true
211 //
212 // in case IsEven is a simple Boolean predicate.
213 //
214 // If you expect your predicate to be reused and want to support informative
215 // messages in EXPECT_FALSE and ASSERT_FALSE (negative assertions show up
216 // about half as often as positive ones in our tests), supply messages for
217 // both success and failure cases:
218 //
219 // testing::AssertionResult IsEven(int n) {
220 // if ((n % 2) == 0)
221 // return testing::AssertionSuccess() << n << " is even";
222 // else
223 // return testing::AssertionFailure() << n << " is odd";
224 // }
225 //
226 // Then a statement EXPECT_FALSE(IsEven(Fib(6))) will print
227 //
228 // Value of: IsEven(Fib(6))
229 // Actual: true (8 is even)
230 // Expected: false
231 //
232 // NB: Predicates that support negative Boolean assertions have reduced
233 // performance in positive ones so be careful not to use them in tests
234 // that have lots (tens of thousands) of positive Boolean assertions.
235 //
236 // To use this class with EXPECT_PRED_FORMAT assertions such as:
237 //
238 // // Verifies that Foo() returns an even number.
239 // EXPECT_PRED_FORMAT1(IsEven, Foo());
240 //
241 // you need to define:
242 //
243 // testing::AssertionResult IsEven(const char* expr, int n) {
244 // if ((n % 2) == 0)
245 // return testing::AssertionSuccess();
246 // else
247 // return testing::AssertionFailure()
248 // << "Expected: " << expr << " is even\n Actual: it's " << n;
249 // }
250 //
251 // If Foo() returns 5, you will see the following message:
252 //
253 // Expected: Foo() is even
254 // Actual: it's 5
255 //
256 class GTEST_API_ AssertionResult {
257 public:
258 // Copy constructor.
259 // Used in EXPECT_TRUE/FALSE(assertion_result).
260 AssertionResult(const AssertionResult& other);
261
262 GTEST_DISABLE_MSC_WARNINGS_PUSH_(4800 /* forcing value to bool */)
263
264 // Used in the EXPECT_TRUE/FALSE(bool_expression).
265 //
266 // T must be contextually convertible to bool.
267 //
268 // The second parameter prevents this overload from being considered if
269 // the argument is implicitly convertible to AssertionResult. In that case
270 // we want AssertionResult's copy constructor to be used.
271 template <typename T>
272 explicit AssertionResult(
273 const T& success,
274 typename internal::EnableIf<
275 !internal::ImplicitlyConvertible<T, AssertionResult>::value>::type*
276 /*enabler*/ = NULL)
277 : success_(success) {}
278
279 GTEST_DISABLE_MSC_WARNINGS_POP_()
280
281 // Assignment operator.
282 AssertionResult& operator=(AssertionResult other) {
283 swap(other);
284 return *this;
285 }
286
287 // Returns true iff the assertion succeeded.
288 operator bool() const { return success_; } // NOLINT
289
290 // Returns the assertion's negation. Used with EXPECT/ASSERT_FALSE.
291 AssertionResult operator!() const;
292
293 // Returns the text streamed into this AssertionResult. Test assertions
294 // use it when they fail (i.e., the predicate's outcome doesn't match the
295 // assertion's expectation). When nothing has been streamed into the
296 // object, returns an empty string.
297 const char* message() const {
298 return message_.get() != NULL ? message_->c_str() : "";
299 }
300 // TODO(vladl@google.com): Remove this after making sure no clients use it.
301 // Deprecated; please use message() instead.
302 const char* failure_message() const { return message(); }
303
304 // Streams a custom failure message into this object.
305 template <typename T> AssertionResult& operator<<(const T& value) {
306 AppendMessage(Message() << value);
307 return *this;
308 }
309
310 // Allows streaming basic output manipulators such as endl or flush into
311 // this object.
312 AssertionResult& operator<<(
313 ::std::ostream& (*basic_manipulator)(::std::ostream& stream)) {
314 AppendMessage(Message() << basic_manipulator);
315 return *this;
316 }
317
318 private:
319 // Appends the contents of message to message_.
320 void AppendMessage(const Message& a_message) {
321 if (message_.get() == NULL)
322 message_.reset(new ::std::string);
323 message_->append(a_message.GetString().c_str());
324 }
325
326 // Swap the contents of this AssertionResult with other.
327 void swap(AssertionResult& other);
328
329 // Stores result of the assertion predicate.
330 bool success_;
331 // Stores the message describing the condition in case the expectation
332 // construct is not satisfied with the predicate's outcome.
333 // Referenced via a pointer to avoid taking too much stack frame space
334 // with test assertions.
335 internal::scoped_ptr< ::std::string> message_;
336 };
337
338 // Makes a successful assertion result.
339 GTEST_API_ AssertionResult AssertionSuccess();
340
341 // Makes a failed assertion result.
342 GTEST_API_ AssertionResult AssertionFailure();
343
344 // Makes a failed assertion result with the given failure message.
345 // Deprecated; use AssertionFailure() << msg.
346 GTEST_API_ AssertionResult AssertionFailure(const Message& msg);
347
348 // The abstract class that all tests inherit from.
349 //
350 // In Google Test, a unit test program contains one or many TestCases, and
351 // each TestCase contains one or many Tests.
352 //
353 // When you define a test using the TEST macro, you don't need to
354 // explicitly derive from Test - the TEST macro automatically does
355 // this for you.
356 //
357 // The only time you derive from Test is when defining a test fixture
358 // to be used a TEST_F. For example:
359 //
360 // class FooTest : public testing::Test {
361 // protected:
362 // void SetUp() override { ... }
363 // void TearDown() override { ... }
364 // ...
365 // };
366 //
367 // TEST_F(FooTest, Bar) { ... }
368 // TEST_F(FooTest, Baz) { ... }
369 //
370 // Test is not copyable.
371 class GTEST_API_ Test {
372 public:
373 friend class TestInfo;
374
375 // Defines types for pointers to functions that set up and tear down
376 // a test case.
377 typedef internal::SetUpTestCaseFunc SetUpTestCaseFunc;
378 typedef internal::TearDownTestCaseFunc TearDownTestCaseFunc;
379
380 // The d'tor is virtual as we intend to inherit from Test.
381 virtual ~Test();
382
383 // Sets up the stuff shared by all tests in this test case.
384 //
385 // Google Test will call Foo::SetUpTestCase() before running the first
386 // test in test case Foo. Hence a sub-class can define its own
387 // SetUpTestCase() method to shadow the one defined in the super
388 // class.
389 static void SetUpTestCase() {}
390
391 // Tears down the stuff shared by all tests in this test case.
392 //
393 // Google Test will call Foo::TearDownTestCase() after running the last
394 // test in test case Foo. Hence a sub-class can define its own
395 // TearDownTestCase() method to shadow the one defined in the super
396 // class.
397 static void TearDownTestCase() {}
398
399 // Returns true iff the current test has a fatal failure.
400 static bool HasFatalFailure();
401
402 // Returns true iff the current test has a non-fatal failure.
403 static bool HasNonfatalFailure();
404
405 // Returns true iff the current test has a (either fatal or
406 // non-fatal) failure.
407 static bool HasFailure() { return HasFatalFailure() || HasNonfatalFailure(); }
408
409 // Logs a property for the current test, test case, or for the entire
410 // invocation of the test program when used outside of the context of a
411 // test case. Only the last value for a given key is remembered. These
412 // are public static so they can be called from utility functions that are
413 // not members of the test fixture. Calls to RecordProperty made during
414 // lifespan of the test (from the moment its constructor starts to the
415 // moment its destructor finishes) will be output in XML as attributes of
416 // the <testcase> element. Properties recorded from fixture's
417 // SetUpTestCase or TearDownTestCase are logged as attributes of the
418 // corresponding <testsuite> element. Calls to RecordProperty made in the
419 // global context (before or after invocation of RUN_ALL_TESTS and from
420 // SetUp/TearDown method of Environment objects registered with Google
421 // Test) will be output as attributes of the <testsuites> element.
422 static void RecordProperty(const std::string& key, const std::string& value);
423 static void RecordProperty(const std::string& key, int value);
424
425 protected:
426 // Creates a Test object.
427 Test();
428
429 // Sets up the test fixture.
430 virtual void SetUp();
431
432 // Tears down the test fixture.
433 virtual void TearDown();
434
435 private:
436 // Returns true iff the current test has the same fixture class as
437 // the first test in the current test case.
438 static bool HasSameFixtureClass();
439
440 // Runs the test after the test fixture has been set up.
441 //
442 // A sub-class must implement this to define the test logic.
443 //
444 // DO NOT OVERRIDE THIS FUNCTION DIRECTLY IN A USER PROGRAM.
445 // Instead, use the TEST or TEST_F macro.
446 virtual void TestBody() = 0;
447
448 // Sets up, executes, and tears down the test.
449 void Run();
450
451 // Deletes self. We deliberately pick an unusual name for this
452 // internal method to avoid clashing with names used in user TESTs.
453 void DeleteSelf_() { delete this; }
454
455 const internal::scoped_ptr< GTEST_FLAG_SAVER_ > gtest_flag_saver_;
456
457 // Often a user misspells SetUp() as Setup() and spends a long time
458 // wondering why it is never called by Google Test. The declaration of
459 // the following method is solely for catching such an error at
460 // compile time:
461 //
462 // - The return type is deliberately chosen to be not void, so it
463 // will be a conflict if void Setup() is declared in the user's
464 // test fixture.
465 //
466 // - This method is private, so it will be another compiler error
467 // if the method is called from the user's test fixture.
468 //
469 // DO NOT OVERRIDE THIS FUNCTION.
470 //
471 // If you see an error about overriding the following function or
472 // about it being private, you have mis-spelled SetUp() as Setup().
473 struct Setup_should_be_spelled_SetUp {};
474 virtual Setup_should_be_spelled_SetUp* Setup() { return NULL; }
475
476 // We disallow copying Tests.
477 GTEST_DISALLOW_COPY_AND_ASSIGN_(Test);
478 };
479
480 typedef internal::TimeInMillis TimeInMillis;
481
482 // A copyable object representing a user specified test property which can be
483 // output as a key/value string pair.
484 //
485 // Don't inherit from TestProperty as its destructor is not virtual.
486 class TestProperty {
487 public:
488 // C'tor. TestProperty does NOT have a default constructor.
489 // Always use this constructor (with parameters) to create a
490 // TestProperty object.
491 TestProperty(const std::string& a_key, const std::string& a_value) :
492 key_(a_key), value_(a_value) {
493 }
494
495 // Gets the user supplied key.
496 const char* key() const {
497 return key_.c_str();
498 }
499
500 // Gets the user supplied value.
501 const char* value() const {
502 return value_.c_str();
503 }
504
505 // Sets a new value, overriding the one supplied in the constructor.
506 void SetValue(const std::string& new_value) {
507 value_ = new_value;
508 }
509
510 private:
511 // The key supplied by the user.
512 std::string key_;
513 // The value supplied by the user.
514 std::string value_;
515 };
516
517 // The result of a single Test. This includes a list of
518 // TestPartResults, a list of TestProperties, a count of how many
519 // death tests there are in the Test, and how much time it took to run
520 // the Test.
521 //
522 // TestResult is not copyable.
523 class GTEST_API_ TestResult {
524 public:
525 // Creates an empty TestResult.
526 TestResult();
527
528 // D'tor. Do not inherit from TestResult.
529 ~TestResult();
530
531 // Gets the number of all test parts. This is the sum of the number
532 // of successful test parts and the number of failed test parts.
533 int total_part_count() const;
534
535 // Returns the number of the test properties.
536 int test_property_count() const;
537
538 // Returns true iff the test passed (i.e. no test part failed).
539 bool Passed() const { return !Failed(); }
540
541 // Returns true iff the test failed.
542 bool Failed() const;
543
544 // Returns true iff the test fatally failed.
545 bool HasFatalFailure() const;
546
547 // Returns true iff the test has a non-fatal failure.
548 bool HasNonfatalFailure() const;
549
550 // Returns the elapsed time, in milliseconds.
551 TimeInMillis elapsed_time() const { return elapsed_time_; }
552
553 // Returns the i-th test part result among all the results. i can range
554 // from 0 to test_property_count() - 1. If i is not in that range, aborts
555 // the program.
556 const TestPartResult& GetTestPartResult(int i) const;
557
558 // Returns the i-th test property. i can range from 0 to
559 // test_property_count() - 1. If i is not in that range, aborts the
560 // program.
561 const TestProperty& GetTestProperty(int i) const;
562
563 private:
564 friend class TestInfo;
565 friend class TestCase;
566 friend class UnitTest;
567 friend class internal::DefaultGlobalTestPartResultReporter;
568 friend class internal::ExecDeathTest;
569 friend class internal::TestResultAccessor;
570 friend class internal::UnitTestImpl;
571 friend class internal::WindowsDeathTest;
572
573 // Gets the vector of TestPartResults.
574 const std::vector<TestPartResult>& test_part_results() const {
575 return test_part_results_;
576 }
577
578 // Gets the vector of TestProperties.
579 const std::vector<TestProperty>& test_properties() const {
580 return test_properties_;
581 }
582
583 // Sets the elapsed time.
584 void set_elapsed_time(TimeInMillis elapsed) { elapsed_time_ = elapsed; }
585
586 // Adds a test property to the list. The property is validated and may add
587 // a non-fatal failure if invalid (e.g., if it conflicts with reserved
588 // key names). If a property is already recorded for the same key, the
589 // value will be updated, rather than storing multiple values for the same
590 // key. xml_element specifies the element for which the property is being
591 // recorded and is used for validation.
592 void RecordProperty(const std::string& xml_element,
593 const TestProperty& test_property);
594
595 // Adds a failure if the key is a reserved attribute of Google Test
596 // testcase tags. Returns true if the property is valid.
597 // TODO(russr): Validate attribute names are legal and human readable.
598 static bool ValidateTestProperty(const std::string& xml_element,
599 const TestProperty& test_property);
600
601 // Adds a test part result to the list.
602 void AddTestPartResult(const TestPartResult& test_part_result);
603
604 // Returns the death test count.
605 int death_test_count() const { return death_test_count_; }
606
607 // Increments the death test count, returning the new count.
608 int increment_death_test_count() { return ++death_test_count_; }
609
610 // Clears the test part results.
611 void ClearTestPartResults();
612
613 // Clears the object.
614 void Clear();
615
616 // Protects mutable state of the property vector and of owned
617 // properties, whose values may be updated.
618 internal::Mutex test_properites_mutex_;
619
620 // The vector of TestPartResults
621 std::vector<TestPartResult> test_part_results_;
622 // The vector of TestProperties
623 std::vector<TestProperty> test_properties_;
624 // Running count of death tests.
625 int death_test_count_;
626 // The elapsed time, in milliseconds.
627 TimeInMillis elapsed_time_;
628
629 // We disallow copying TestResult.
630 GTEST_DISALLOW_COPY_AND_ASSIGN_(TestResult);
631 }; // class TestResult
632
633 // A TestInfo object stores the following information about a test:
634 //
635 // Test case name
636 // Test name
637 // Whether the test should be run
638 // A function pointer that creates the test object when invoked
639 // Test result
640 //
641 // The constructor of TestInfo registers itself with the UnitTest
642 // singleton such that the RUN_ALL_TESTS() macro knows which tests to
643 // run.
644 class GTEST_API_ TestInfo {
645 public:
646 // Destructs a TestInfo object. This function is not virtual, so
647 // don't inherit from TestInfo.
648 ~TestInfo();
649
650 // Returns the test case name.
651 const char* test_case_name() const { return test_case_name_.c_str(); }
652
653 // Returns the test name.
654 const char* name() const { return name_.c_str(); }
655
656 // Returns the name of the parameter type, or NULL if this is not a typed
657 // or a type-parameterized test.
658 const char* type_param() const {
659 if (type_param_.get() != NULL)
660 return type_param_->c_str();
661 return NULL;
662 }
663
664 // Returns the text representation of the value parameter, or NULL if this
665 // is not a value-parameterized test.
666 const char* value_param() const {
667 if (value_param_.get() != NULL)
668 return value_param_->c_str();
669 return NULL;
670 }
671
672 // Returns the file name where this test is defined.
673 const char* file() const { return location_.file.c_str(); }
674
675 // Returns the line where this test is defined.
676 int line() const { return location_.line; }
677
678 // Returns true if this test should run, that is if the test is not
679 // disabled (or it is disabled but the also_run_disabled_tests flag has
680 // been specified) and its full name matches the user-specified filter.
681 //
682 // Google Test allows the user to filter the tests by their full names.
683 // The full name of a test Bar in test case Foo is defined as
684 // "Foo.Bar". Only the tests that match the filter will run.
685 //
686 // A filter is a colon-separated list of glob (not regex) patterns,
687 // optionally followed by a '-' and a colon-separated list of
688 // negative patterns (tests to exclude). A test is run if it
689 // matches one of the positive patterns and does not match any of
690 // the negative patterns.
691 //
692 // For example, *A*:Foo.* is a filter that matches any string that
693 // contains the character 'A' or starts with "Foo.".
694 bool should_run() const { return should_run_; }
695
696 // Returns true iff this test will appear in the XML report.
697 bool is_reportable() const {
698 // For now, the XML report includes all tests matching the filter.
699 // In the future, we may trim tests that are excluded because of
700 // sharding.
701 return matches_filter_;
702 }
703
704 // Returns the result of the test.
705 const TestResult* result() const { return &result_; }
706
707 private:
708 #if GTEST_HAS_DEATH_TEST
709 friend class internal::DefaultDeathTestFactory;
710 #endif // GTEST_HAS_DEATH_TEST
711 friend class Test;
712 friend class TestCase;
713 friend class internal::UnitTestImpl;
714 friend class internal::StreamingListenerTest;
715 friend TestInfo* internal::MakeAndRegisterTestInfo(
716 const char* test_case_name,
717 const char* name,
718 const char* type_param,
719 const char* value_param,
720 internal::CodeLocation code_location,
721 internal::TypeId fixture_class_id,
722 Test::SetUpTestCaseFunc set_up_tc,
723 Test::TearDownTestCaseFunc tear_down_tc,
724 internal::TestFactoryBase* factory);
725
726 // Constructs a TestInfo object. The newly constructed instance assumes
727 // ownership of the factory object.
728 TestInfo(const std::string& test_case_name,
729 const std::string& name,
730 const char* a_type_param, // NULL if not a type-parameterized test
731 const char* a_value_param, // NULL if not a value-parameterized test
732 internal::CodeLocation a_code_location,
733 internal::TypeId fixture_class_id,
734 internal::TestFactoryBase* factory);
735
736 // Increments the number of death tests encountered in this test so
737 // far.
738 int increment_death_test_count() {
739 return result_.increment_death_test_count();
740 }
741
742 // Creates the test object, runs it, records its result, and then
743 // deletes it.
744 void Run();
745
746 static void ClearTestResult(TestInfo* test_info) {
747 test_info->result_.Clear();
748 }
749
750 // These fields are immutable properties of the test.
751 const std::string test_case_name_; // Test case name
752 const std::string name_; // Test name
753 // Name of the parameter type, or NULL if this is not a typed or a
754 // type-parameterized test.
755 const internal::scoped_ptr<const ::std::string> type_param_;
756 // Text representation of the value parameter, or NULL if this is not a
757 // value-parameterized test.
758 const internal::scoped_ptr<const ::std::string> value_param_;
759 internal::CodeLocation location_;
760 const internal::TypeId fixture_class_id_; // ID of the test fixture class
761 bool should_run_; // True iff this test should run
762 bool is_disabled_; // True iff this test is disabled
763 bool matches_filter_; // True if this test matches the
764 // user-specified filter.
765 internal::TestFactoryBase* const factory_; // The factory that creates
766 // the test object
767
768 // This field is mutable and needs to be reset before running the
769 // test for the second time.
770 TestResult result_;
771
772 GTEST_DISALLOW_COPY_AND_ASSIGN_(TestInfo);
773 };
774
775 // A test case, which consists of a vector of TestInfos.
776 //
777 // TestCase is not copyable.
778 class GTEST_API_ TestCase {
779 public:
780 // Creates a TestCase with the given name.
781 //
782 // TestCase does NOT have a default constructor. Always use this
783 // constructor to create a TestCase object.
784 //
785 // Arguments:
786 //
787 // name: name of the test case
788 // a_type_param: the name of the test's type parameter, or NULL if
789 // this is not a type-parameterized test.
790 // set_up_tc: pointer to the function that sets up the test case
791 // tear_down_tc: pointer to the function that tears down the test case
792 TestCase(const char* name, const char* a_type_param,
793 Test::SetUpTestCaseFunc set_up_tc,
794 Test::TearDownTestCaseFunc tear_down_tc);
795
796 // Destructor of TestCase.
797 virtual ~TestCase();
798
799 // Gets the name of the TestCase.
800 const char* name() const { return name_.c_str(); }
801
802 // Returns the name of the parameter type, or NULL if this is not a
803 // type-parameterized test case.
804 const char* type_param() const {
805 if (type_param_.get() != NULL)
806 return type_param_->c_str();
807 return NULL;
808 }
809
810 // Returns true if any test in this test case should run.
811 bool should_run() const { return should_run_; }
812
813 // Gets the number of successful tests in this test case.
814 int successful_test_count() const;
815
816 // Gets the number of failed tests in this test case.
817 int failed_test_count() const;
818
819 // Gets the number of disabled tests that will be reported in the XML report.
820 int reportable_disabled_test_count() const;
821
822 // Gets the number of disabled tests in this test case.
823 int disabled_test_count() const;
824
825 // Gets the number of tests to be printed in the XML report.
826 int reportable_test_count() const;
827
828 // Get the number of tests in this test case that should run.
829 int test_to_run_count() const;
830
831 // Gets the number of all tests in this test case.
832 int total_test_count() const;
833
834 // Returns true iff the test case passed.
835 bool Passed() const { return !Failed(); }
836
837 // Returns true iff the test case failed.
838 bool Failed() const { return failed_test_count() > 0; }
839
840 // Returns the elapsed time, in milliseconds.
841 TimeInMillis elapsed_time() const { return elapsed_time_; }
842
843 // Returns the i-th test among all the tests. i can range from 0 to
844 // total_test_count() - 1. If i is not in that range, returns NULL.
845 const TestInfo* GetTestInfo(int i) const;
846
847 // Returns the TestResult that holds test properties recorded during
848 // execution of SetUpTestCase and TearDownTestCase.
849 const TestResult& ad_hoc_test_result() const { return ad_hoc_test_result_; }
850
851 private:
852 friend class Test;
853 friend class internal::UnitTestImpl;
854
855 // Gets the (mutable) vector of TestInfos in this TestCase.
856 std::vector<TestInfo*>& test_info_list() { return test_info_list_; }
857
858 // Gets the (immutable) vector of TestInfos in this TestCase.
859 const std::vector<TestInfo*>& test_info_list() const {
860 return test_info_list_;
861 }
862
863 // Returns the i-th test among all the tests. i can range from 0 to
864 // total_test_count() - 1. If i is not in that range, returns NULL.
865 TestInfo* GetMutableTestInfo(int i);
866
867 // Sets the should_run member.
868 void set_should_run(bool should) { should_run_ = should; }
869
870 // Adds a TestInfo to this test case. Will delete the TestInfo upon
871 // destruction of the TestCase object.
872 void AddTestInfo(TestInfo * test_info);
873
874 // Clears the results of all tests in this test case.
875 void ClearResult();
876
877 // Clears the results of all tests in the given test case.
878 static void ClearTestCaseResult(TestCase* test_case) {
879 test_case->ClearResult();
880 }
881
882 // Runs every test in this TestCase.
883 void Run();
884
885 // Runs SetUpTestCase() for this TestCase. This wrapper is needed
886 // for catching exceptions thrown from SetUpTestCase().
887 void RunSetUpTestCase() { (*set_up_tc_)(); }
888
889 // Runs TearDownTestCase() for this TestCase. This wrapper is
890 // needed for catching exceptions thrown from TearDownTestCase().
891 void RunTearDownTestCase() { (*tear_down_tc_)(); }
892
893 // Returns true iff test passed.
894 static bool TestPassed(const TestInfo* test_info) {
895 return test_info->should_run() && test_info->result()->Passed();
896 }
897
898 // Returns true iff test failed.
899 static bool TestFailed(const TestInfo* test_info) {
900 return test_info->should_run() && test_info->result()->Failed();
901 }
902
903 // Returns true iff the test is disabled and will be reported in the XML
904 // report.
905 static bool TestReportableDisabled(const TestInfo* test_info) {
906 return test_info->is_reportable() && test_info->is_disabled_;
907 }
908
909 // Returns true iff test is disabled.
910 static bool TestDisabled(const TestInfo* test_info) {
911 return test_info->is_disabled_;
912 }
913
914 // Returns true iff this test will appear in the XML report.
915 static bool TestReportable(const TestInfo* test_info) {
916 return test_info->is_reportable();
917 }
918
919 // Returns true if the given test should run.
920 static bool ShouldRunTest(const TestInfo* test_info) {
921 return test_info->should_run();
922 }
923
924 // Shuffles the tests in this test case.
925 void ShuffleTests(internal::Random* random);
926
927 // Restores the test order to before the first shuffle.
928 void UnshuffleTests();
929
930 // Name of the test case.
931 std::string name_;
932 // Name of the parameter type, or NULL if this is not a typed or a
933 // type-parameterized test.
934 const internal::scoped_ptr<const ::std::string> type_param_;
935 // The vector of TestInfos in their original order. It owns the
936 // elements in the vector.
937 std::vector<TestInfo*> test_info_list_;
938 // Provides a level of indirection for the test list to allow easy
939 // shuffling and restoring the test order. The i-th element in this
940 // vector is the index of the i-th test in the shuffled test list.
941 std::vector<int> test_indices_;
942 // Pointer to the function that sets up the test case.
943 Test::SetUpTestCaseFunc set_up_tc_;
944 // Pointer to the function that tears down the test case.
945 Test::TearDownTestCaseFunc tear_down_tc_;
946 // True iff any test in this test case should run.
947 bool should_run_;
948 // Elapsed time, in milliseconds.
949 TimeInMillis elapsed_time_;
950 // Holds test properties recorded during execution of SetUpTestCase and
951 // TearDownTestCase.
952 TestResult ad_hoc_test_result_;
953
954 // We disallow copying TestCases.
955 GTEST_DISALLOW_COPY_AND_ASSIGN_(TestCase);
956 };
957
958 // An Environment object is capable of setting up and tearing down an
959 // environment. You should subclass this to define your own
960 // environment(s).
961 //
962 // An Environment object does the set-up and tear-down in virtual
963 // methods SetUp() and TearDown() instead of the constructor and the
964 // destructor, as:
965 //
966 // 1. You cannot safely throw from a destructor. This is a problem
967 // as in some cases Google Test is used where exceptions are enabled, and
968 // we may want to implement ASSERT_* using exceptions where they are
969 // available.
970 // 2. You cannot use ASSERT_* directly in a constructor or
971 // destructor.
972 class Environment {
973 public:
974 // The d'tor is virtual as we need to subclass Environment.
975 virtual ~Environment() {}
976
977 // Override this to define how to set up the environment.
978 virtual void SetUp() {}
979
980 // Override this to define how to tear down the environment.
981 virtual void TearDown() {}
982 private:
983 // If you see an error about overriding the following function or
984 // about it being private, you have mis-spelled SetUp() as Setup().
985 struct Setup_should_be_spelled_SetUp {};
986 virtual Setup_should_be_spelled_SetUp* Setup() { return NULL; }
987 };
988
989 // The interface for tracing execution of tests. The methods are organized in
990 // the order the corresponding events are fired.
991 class TestEventListener {
992 public:
993 virtual ~TestEventListener() {}
994
995 // Fired before any test activity starts.
996 virtual void OnTestProgramStart(const UnitTest& unit_test) = 0;
997
998 // Fired before each iteration of tests starts. There may be more than
999 // one iteration if GTEST_FLAG(repeat) is set. iteration is the iteration
1000 // index, starting from 0.
1001 virtual void OnTestIterationStart(const UnitTest& unit_test,
1002 int iteration) = 0;
1003
1004 // Fired before environment set-up for each iteration of tests starts.
1005 virtual void OnEnvironmentsSetUpStart(const UnitTest& unit_test) = 0;
1006
1007 // Fired after environment set-up for each iteration of tests ends.
1008 virtual void OnEnvironmentsSetUpEnd(const UnitTest& unit_test) = 0;
1009
1010 // Fired before the test case starts.
1011 virtual void OnTestCaseStart(const TestCase& test_case) = 0;
1012
1013 // Fired before the test starts.
1014 virtual void OnTestStart(const TestInfo& test_info) = 0;
1015
1016 // Fired after a failed assertion or a SUCCEED() invocation.
1017 virtual void OnTestPartResult(const TestPartResult& test_part_result) = 0;
1018
1019 // Fired after the test ends.
1020 virtual void OnTestEnd(const TestInfo& test_info) = 0;
1021
1022 // Fired after the test case ends.
1023 virtual void OnTestCaseEnd(const TestCase& test_case) = 0;
1024
1025 // Fired before environment tear-down for each iteration of tests starts.
1026 virtual void OnEnvironmentsTearDownStart(const UnitTest& unit_test) = 0;
1027
1028 // Fired after environment tear-down for each iteration of tests ends.
1029 virtual void OnEnvironmentsTearDownEnd(const UnitTest& unit_test) = 0;
1030
1031 // Fired after each iteration of tests finishes.
1032 virtual void OnTestIterationEnd(const UnitTest& unit_test,
1033 int iteration) = 0;
1034
1035 // Fired after all test activities have ended.
1036 virtual void OnTestProgramEnd(const UnitTest& unit_test) = 0;
1037 };
1038
1039 // The convenience class for users who need to override just one or two
1040 // methods and are not concerned that a possible change to a signature of
1041 // the methods they override will not be caught during the build. For
1042 // comments about each method please see the definition of TestEventListener
1043 // above.
1044 class EmptyTestEventListener : public TestEventListener {
1045 public:
1046 virtual void OnTestProgramStart(const UnitTest& /*unit_test*/) {}
1047 virtual void OnTestIterationStart(const UnitTest& /*unit_test*/,
1048 int /*iteration*/) {}
1049 virtual void OnEnvironmentsSetUpStart(const UnitTest& /*unit_test*/) {}
1050 virtual void OnEnvironmentsSetUpEnd(const UnitTest& /*unit_test*/) {}
1051 virtual void OnTestCaseStart(const TestCase& /*test_case*/) {}
1052 virtual void OnTestStart(const TestInfo& /*test_info*/) {}
1053 virtual void OnTestPartResult(const TestPartResult& /*test_part_result*/) {}
1054 virtual void OnTestEnd(const TestInfo& /*test_info*/) {}
1055 virtual void OnTestCaseEnd(const TestCase& /*test_case*/) {}
1056 virtual void OnEnvironmentsTearDownStart(const UnitTest& /*unit_test*/) {}
1057 virtual void OnEnvironmentsTearDownEnd(const UnitTest& /*unit_test*/) {}
1058 virtual void OnTestIterationEnd(const UnitTest& /*unit_test*/,
1059 int /*iteration*/) {}
1060 virtual void OnTestProgramEnd(const UnitTest& /*unit_test*/) {}
1061 };
1062
1063 // TestEventListeners lets users add listeners to track events in Google Test.
1064 class GTEST_API_ TestEventListeners {
1065 public:
1066 TestEventListeners();
1067 ~TestEventListeners();
1068
1069 // Appends an event listener to the end of the list. Google Test assumes
1070 // the ownership of the listener (i.e. it will delete the listener when
1071 // the test program finishes).
1072 void Append(TestEventListener* listener);
1073
1074 // Removes the given event listener from the list and returns it. It then
1075 // becomes the caller's responsibility to delete the listener. Returns
1076 // NULL if the listener is not found in the list.
1077 TestEventListener* Release(TestEventListener* listener);
1078
1079 // Returns the standard listener responsible for the default console
1080 // output. Can be removed from the listeners list to shut down default
1081 // console output. Note that removing this object from the listener list
1082 // with Release transfers its ownership to the caller and makes this
1083 // function return NULL the next time.
1084 TestEventListener* default_result_printer() const {
1085 return default_result_printer_;
1086 }
1087
1088 // Returns the standard listener responsible for the default XML output
1089 // controlled by the --gtest_output=xml flag. Can be removed from the
1090 // listeners list by users who want to shut down the default XML output
1091 // controlled by this flag and substitute it with custom one. Note that
1092 // removing this object from the listener list with Release transfers its
1093 // ownership to the caller and makes this function return NULL the next
1094 // time.
1095 TestEventListener* default_xml_generator() const {
1096 return default_xml_generator_;
1097 }
1098
1099 private:
1100 friend class TestCase;
1101 friend class TestInfo;
1102 friend class internal::DefaultGlobalTestPartResultReporter;
1103 friend class internal::NoExecDeathTest;
1104 friend class internal::TestEventListenersAccessor;
1105 friend class internal::UnitTestImpl;
1106
1107 // Returns repeater that broadcasts the TestEventListener events to all
1108 // subscribers.
1109 TestEventListener* repeater();
1110
1111 // Sets the default_result_printer attribute to the provided listener.
1112 // The listener is also added to the listener list and previous
1113 // default_result_printer is removed from it and deleted. The listener can
1114 // also be NULL in which case it will not be added to the list. Does
1115 // nothing if the previous and the current listener objects are the same.
1116 void SetDefaultResultPrinter(TestEventListener* listener);
1117
1118 // Sets the default_xml_generator attribute to the provided listener. The
1119 // listener is also added to the listener list and previous
1120 // default_xml_generator is removed from it and deleted. The listener can
1121 // also be NULL in which case it will not be added to the list. Does
1122 // nothing if the previous and the current listener objects are the same.
1123 void SetDefaultXmlGenerator(TestEventListener* listener);
1124
1125 // Controls whether events will be forwarded by the repeater to the
1126 // listeners in the list.
1127 bool EventForwardingEnabled() const;
1128 void SuppressEventForwarding();
1129
1130 // The actual list of listeners.
1131 internal::TestEventRepeater* repeater_;
1132 // Listener responsible for the standard result output.
1133 TestEventListener* default_result_printer_;
1134 // Listener responsible for the creation of the XML output file.
1135 TestEventListener* default_xml_generator_;
1136
1137 // We disallow copying TestEventListeners.
1138 GTEST_DISALLOW_COPY_AND_ASSIGN_(TestEventListeners);
1139 };
1140
1141 // A UnitTest consists of a vector of TestCases.
1142 //
1143 // This is a singleton class. The only instance of UnitTest is
1144 // created when UnitTest::GetInstance() is first called. This
1145 // instance is never deleted.
1146 //
1147 // UnitTest is not copyable.
1148 //
1149 // This class is thread-safe as long as the methods are called
1150 // according to their specification.
1151 class GTEST_API_ UnitTest {
1152 public:
1153 // Gets the singleton UnitTest object. The first time this method
1154 // is called, a UnitTest object is constructed and returned.
1155 // Consecutive calls will return the same object.
1156 static UnitTest* GetInstance();
1157
1158 // Runs all tests in this UnitTest object and prints the result.
1159 // Returns 0 if successful, or 1 otherwise.
1160 //
1161 // This method can only be called from the main thread.
1162 //
1163 // INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
1164 int Run() GTEST_MUST_USE_RESULT_;
1165
1166 // Returns the working directory when the first TEST() or TEST_F()
1167 // was executed. The UnitTest object owns the string.
1168 const char* original_working_dir() const;
1169
1170 // Returns the TestCase object for the test that's currently running,
1171 // or NULL if no test is running.
1172 const TestCase* current_test_case() const
1173 GTEST_LOCK_EXCLUDED_(mutex_);
1174
1175 // Returns the TestInfo object for the test that's currently running,
1176 // or NULL if no test is running.
1177 const TestInfo* current_test_info() const
1178 GTEST_LOCK_EXCLUDED_(mutex_);
1179
1180 // Returns the random seed used at the start of the current test run.
1181 int random_seed() const;
1182
1183 #if GTEST_HAS_PARAM_TEST
1184 // Returns the ParameterizedTestCaseRegistry object used to keep track of
1185 // value-parameterized tests and instantiate and register them.
1186 //
1187 // INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
1188 internal::ParameterizedTestCaseRegistry& parameterized_test_registry()
1189 GTEST_LOCK_EXCLUDED_(mutex_);
1190 #endif // GTEST_HAS_PARAM_TEST
1191
1192 // Gets the number of successful test cases.
1193 int successful_test_case_count() const;
1194
1195 // Gets the number of failed test cases.
1196 int failed_test_case_count() const;
1197
1198 // Gets the number of all test cases.
1199 int total_test_case_count() const;
1200
1201 // Gets the number of all test cases that contain at least one test
1202 // that should run.
1203 int test_case_to_run_count() const;
1204
1205 // Gets the number of successful tests.
1206 int successful_test_count() const;
1207
1208 // Gets the number of failed tests.
1209 int failed_test_count() const;
1210
1211 // Gets the number of disabled tests that will be reported in the XML report.
1212 int reportable_disabled_test_count() const;
1213
1214 // Gets the number of disabled tests.
1215 int disabled_test_count() const;
1216
1217 // Gets the number of tests to be printed in the XML report.
1218 int reportable_test_count() const;
1219
1220 // Gets the number of all tests.
1221 int total_test_count() const;
1222
1223 // Gets the number of tests that should run.
1224 int test_to_run_count() const;
1225
1226 // Gets the time of the test program start, in ms from the start of the
1227 // UNIX epoch.
1228 TimeInMillis start_timestamp() const;
1229
1230 // Gets the elapsed time, in milliseconds.
1231 TimeInMillis elapsed_time() const;
1232
1233 // Returns true iff the unit test passed (i.e. all test cases passed).
1234 bool Passed() const;
1235
1236 // Returns true iff the unit test failed (i.e. some test case failed
1237 // or something outside of all tests failed).
1238 bool Failed() const;
1239
1240 // Gets the i-th test case among all the test cases. i can range from 0 to
1241 // total_test_case_count() - 1. If i is not in that range, returns NULL.
1242 const TestCase* GetTestCase(int i) const;
1243
1244 // Returns the TestResult containing information on test failures and
1245 // properties logged outside of individual test cases.
1246 const TestResult& ad_hoc_test_result() const;
1247
1248 // Returns the list of event listeners that can be used to track events
1249 // inside Google Test.
1250 TestEventListeners& listeners();
1251
1252 private:
1253 // Registers and returns a global test environment. When a test
1254 // program is run, all global test environments will be set-up in
1255 // the order they were registered. After all tests in the program
1256 // have finished, all global test environments will be torn-down in
1257 // the *reverse* order they were registered.
1258 //
1259 // The UnitTest object takes ownership of the given environment.
1260 //
1261 // This method can only be called from the main thread.
1262 Environment* AddEnvironment(Environment* env);
1263
1264 // Adds a TestPartResult to the current TestResult object. All
1265 // Google Test assertion macros (e.g. ASSERT_TRUE, EXPECT_EQ, etc)
1266 // eventually call this to report their results. The user code
1267 // should use the assertion macros instead of calling this directly.
1268 void AddTestPartResult(TestPartResult::Type result_type,
1269 const char* file_name,
1270 int line_number,
1271 const std::string& message,
1272 const std::string& os_stack_trace)
1273 GTEST_LOCK_EXCLUDED_(mutex_);
1274
1275 // Adds a TestProperty to the current TestResult object when invoked from
1276 // inside a test, to current TestCase's ad_hoc_test_result_ when invoked
1277 // from SetUpTestCase or TearDownTestCase, or to the global property set
1278 // when invoked elsewhere. If the result already contains a property with
1279 // the same key, the value will be updated.
1280 void RecordProperty(const std::string& key, const std::string& value);
1281
1282 // Gets the i-th test case among all the test cases. i can range from 0 to
1283 // total_test_case_count() - 1. If i is not in that range, returns NULL.
1284 TestCase* GetMutableTestCase(int i);
1285
1286 // Accessors for the implementation object.
1287 internal::UnitTestImpl* impl() { return impl_; }
1288 const internal::UnitTestImpl* impl() const { return impl_; }
1289
1290 // These classes and funcions are friends as they need to access private
1291 // members of UnitTest.
1292 friend class Test;
1293 friend class internal::AssertHelper;
1294 friend class internal::ScopedTrace;
1295 friend class internal::StreamingListenerTest;
1296 friend class internal::UnitTestRecordPropertyTestHelper;
1297 friend Environment* AddGlobalTestEnvironment(Environment* env);
1298 friend internal::UnitTestImpl* internal::GetUnitTestImpl();
1299 friend void internal::ReportFailureInUnknownLocation(
1300 TestPartResult::Type result_type,
1301 const std::string& message);
1302
1303 // Creates an empty UnitTest.
1304 UnitTest();
1305
1306 // D'tor
1307 virtual ~UnitTest();
1308
1309 // Pushes a trace defined by SCOPED_TRACE() on to the per-thread
1310 // Google Test trace stack.
1311 void PushGTestTrace(const internal::TraceInfo& trace)
1312 GTEST_LOCK_EXCLUDED_(mutex_);
1313
1314 // Pops a trace from the per-thread Google Test trace stack.
1315 void PopGTestTrace()
1316 GTEST_LOCK_EXCLUDED_(mutex_);
1317
1318 // Protects mutable state in *impl_. This is mutable as some const
1319 // methods need to lock it too.
1320 mutable internal::Mutex mutex_;
1321
1322 // Opaque implementation object. This field is never changed once
1323 // the object is constructed. We don't mark it as const here, as
1324 // doing so will cause a warning in the constructor of UnitTest.
1325 // Mutable state in *impl_ is protected by mutex_.
1326 internal::UnitTestImpl* impl_;
1327
1328 // We disallow copying UnitTest.
1329 GTEST_DISALLOW_COPY_AND_ASSIGN_(UnitTest);
1330 };
1331
1332 // A convenient wrapper for adding an environment for the test
1333 // program.
1334 //
1335 // You should call this before RUN_ALL_TESTS() is called, probably in
1336 // main(). If you use gtest_main, you need to call this before main()
1337 // starts for it to take effect. For example, you can define a global
1338 // variable like this:
1339 //
1340 // testing::Environment* const foo_env =
1341 // testing::AddGlobalTestEnvironment(new FooEnvironment);
1342 //
1343 // However, we strongly recommend you to write your own main() and
1344 // call AddGlobalTestEnvironment() there, as relying on initialization
1345 // of global variables makes the code harder to read and may cause
1346 // problems when you register multiple environments from different
1347 // translation units and the environments have dependencies among them
1348 // (remember that the compiler doesn't guarantee the order in which
1349 // global variables from different translation units are initialized).
1350 inline Environment* AddGlobalTestEnvironment(Environment* env) {
1351 return UnitTest::GetInstance()->AddEnvironment(env);
1352 }
1353
1354 // Initializes Google Test. This must be called before calling
1355 // RUN_ALL_TESTS(). In particular, it parses a command line for the
1356 // flags that Google Test recognizes. Whenever a Google Test flag is
1357 // seen, it is removed from argv, and *argc is decremented.
1358 //
1359 // No value is returned. Instead, the Google Test flag variables are
1360 // updated.
1361 //
1362 // Calling the function for the second time has no user-visible effect.
1363 GTEST_API_ void InitGoogleTest(int* argc, char** argv);
1364
1365 // This overloaded version can be used in Windows programs compiled in
1366 // UNICODE mode.
1367 GTEST_API_ void InitGoogleTest(int* argc, wchar_t** argv);
1368
1369 namespace internal {
1370
1371 // Separate the error generating code from the code path to reduce the stack
1372 // frame size of CmpHelperEQ. This helps reduce the overhead of some sanitizers
1373 // when calling EXPECT_* in a tight loop.
1374 template <typename T1, typename T2>
1375 AssertionResult CmpHelperEQFailure(const char* lhs_expression,
1376 const char* rhs_expression,
1377 const T1& lhs, const T2& rhs) {
1378 return EqFailure(lhs_expression,
1379 rhs_expression,
1380 FormatForComparisonFailureMessage(lhs, rhs),
1381 FormatForComparisonFailureMessage(rhs, lhs),
1382 false);
1383 }
1384
1385 // The helper function for {ASSERT|EXPECT}_EQ.
1386 template <typename T1, typename T2>
1387 AssertionResult CmpHelperEQ(const char* lhs_expression,
1388 const char* rhs_expression,
1389 const T1& lhs,
1390 const T2& rhs) {
1391 GTEST_DISABLE_MSC_WARNINGS_PUSH_(4389 /* signed/unsigned mismatch */)
1392 if (lhs == rhs) {
1393 return AssertionSuccess();
1394 }
1395 GTEST_DISABLE_MSC_WARNINGS_POP_()
1396
1397 return CmpHelperEQFailure(lhs_expression, rhs_expression, lhs, rhs);
1398 }
1399
1400 // With this overloaded version, we allow anonymous enums to be used
1401 // in {ASSERT|EXPECT}_EQ when compiled with gcc 4, as anonymous enums
1402 // can be implicitly cast to BiggestInt.
1403 GTEST_API_ AssertionResult CmpHelperEQ(const char* lhs_expression,
1404 const char* rhs_expression,
1405 BiggestInt lhs,
1406 BiggestInt rhs);
1407
1408 // The helper class for {ASSERT|EXPECT}_EQ. The template argument
1409 // lhs_is_null_literal is true iff the first argument to ASSERT_EQ()
1410 // is a null pointer literal. The following default implementation is
1411 // for lhs_is_null_literal being false.
1412 template <bool lhs_is_null_literal>
1413 class EqHelper {
1414 public:
1415 // This templatized version is for the general case.
1416 template <typename T1, typename T2>
1417 static AssertionResult Compare(const char* lhs_expression,
1418 const char* rhs_expression,
1419 const T1& lhs,
1420 const T2& rhs) {
1421 return CmpHelperEQ(lhs_expression, rhs_expression, lhs, rhs);
1422 }
1423
1424 // With this overloaded version, we allow anonymous enums to be used
1425 // in {ASSERT|EXPECT}_EQ when compiled with gcc 4, as anonymous
1426 // enums can be implicitly cast to BiggestInt.
1427 //
1428 // Even though its body looks the same as the above version, we
1429 // cannot merge the two, as it will make anonymous enums unhappy.
1430 static AssertionResult Compare(const char* lhs_expression,
1431 const char* rhs_expression,
1432 BiggestInt lhs,
1433 BiggestInt rhs) {
1434 return CmpHelperEQ(lhs_expression, rhs_expression, lhs, rhs);
1435 }
1436 };
1437
1438 // This specialization is used when the first argument to ASSERT_EQ()
1439 // is a null pointer literal, like NULL, false, or 0.
1440 template <>
1441 class EqHelper<true> {
1442 public:
1443 // We define two overloaded versions of Compare(). The first
1444 // version will be picked when the second argument to ASSERT_EQ() is
1445 // NOT a pointer, e.g. ASSERT_EQ(0, AnIntFunction()) or
1446 // EXPECT_EQ(false, a_bool).
1447 template <typename T1, typename T2>
1448 static AssertionResult Compare(
1449 const char* lhs_expression,
1450 const char* rhs_expression,
1451 const T1& lhs,
1452 const T2& rhs,
1453 // The following line prevents this overload from being considered if T2
1454 // is not a pointer type. We need this because ASSERT_EQ(NULL, my_ptr)
1455 // expands to Compare("", "", NULL, my_ptr), which requires a conversion
1456 // to match the Secret* in the other overload, which would otherwise make
1457 // this template match better.
1458 typename EnableIf<!is_pointer<T2>::value>::type* = 0) {
1459 return CmpHelperEQ(lhs_expression, rhs_expression, lhs, rhs);
1460 }
1461
1462 // This version will be picked when the second argument to ASSERT_EQ() is a
1463 // pointer, e.g. ASSERT_EQ(NULL, a_pointer).
1464 template <typename T>
1465 static AssertionResult Compare(
1466 const char* lhs_expression,
1467 const char* rhs_expression,
1468 // We used to have a second template parameter instead of Secret*. That
1469 // template parameter would deduce to 'long', making this a better match
1470 // than the first overload even without the first overload's EnableIf.
1471 // Unfortunately, gcc with -Wconversion-null warns when "passing NULL to
1472 // non-pointer argument" (even a deduced integral argument), so the old
1473 // implementation caused warnings in user code.
1474 Secret* /* lhs (NULL) */,
1475 T* rhs) {
1476 // We already know that 'lhs' is a null pointer.
1477 return CmpHelperEQ(lhs_expression, rhs_expression,
1478 static_cast<T*>(NULL), rhs);
1479 }
1480 };
1481
1482 // Separate the error generating code from the code path to reduce the stack
1483 // frame size of CmpHelperOP. This helps reduce the overhead of some sanitizers
1484 // when calling EXPECT_OP in a tight loop.
1485 template <typename T1, typename T2>
1486 AssertionResult CmpHelperOpFailure(const char* expr1, const char* expr2,
1487 const T1& val1, const T2& val2,
1488 const char* op) {
1489 return AssertionFailure()
1490 << "Expected: (" << expr1 << ") " << op << " (" << expr2
1491 << "), actual: " << FormatForComparisonFailureMessage(val1, val2)
1492 << " vs " << FormatForComparisonFailureMessage(val2, val1);
1493 }
1494
1495 // A macro for implementing the helper functions needed to implement
1496 // ASSERT_?? and EXPECT_??. It is here just to avoid copy-and-paste
1497 // of similar code.
1498 //
1499 // For each templatized helper function, we also define an overloaded
1500 // version for BiggestInt in order to reduce code bloat and allow
1501 // anonymous enums to be used with {ASSERT|EXPECT}_?? when compiled
1502 // with gcc 4.
1503 //
1504 // INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
1505
1506 #define GTEST_IMPL_CMP_HELPER_(op_name, op)\
1507 template <typename T1, typename T2>\
1508 AssertionResult CmpHelper##op_name(const char* expr1, const char* expr2, \
1509 const T1& val1, const T2& val2) {\
1510 if (val1 op val2) {\
1511 return AssertionSuccess();\
1512 } else {\
1513 return CmpHelperOpFailure(expr1, expr2, val1, val2, #op);\
1514 }\
1515 }\
1516 GTEST_API_ AssertionResult CmpHelper##op_name(\
1517 const char* expr1, const char* expr2, BiggestInt val1, BiggestInt val2)
1518
1519 // INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
1520
1521 // Implements the helper function for {ASSERT|EXPECT}_NE
1522 GTEST_IMPL_CMP_HELPER_(NE, !=);
1523 // Implements the helper function for {ASSERT|EXPECT}_LE
1524 GTEST_IMPL_CMP_HELPER_(LE, <=);
1525 // Implements the helper function for {ASSERT|EXPECT}_LT
1526 GTEST_IMPL_CMP_HELPER_(LT, <);
1527 // Implements the helper function for {ASSERT|EXPECT}_GE
1528 GTEST_IMPL_CMP_HELPER_(GE, >=);
1529 // Implements the helper function for {ASSERT|EXPECT}_GT
1530 GTEST_IMPL_CMP_HELPER_(GT, >);
1531
1532 #undef GTEST_IMPL_CMP_HELPER_
1533
1534 // The helper function for {ASSERT|EXPECT}_STREQ.
1535 //
1536 // INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
1537 GTEST_API_ AssertionResult CmpHelperSTREQ(const char* s1_expression,
1538 const char* s2_expression,
1539 const char* s1,
1540 const char* s2);
1541
1542 // The helper function for {ASSERT|EXPECT}_STRCASEEQ.
1543 //
1544 // INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
1545 GTEST_API_ AssertionResult CmpHelperSTRCASEEQ(const char* s1_expression,
1546 const char* s2_expression,
1547 const char* s1,
1548 const char* s2);
1549
1550 // The helper function for {ASSERT|EXPECT}_STRNE.
1551 //
1552 // INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
1553 GTEST_API_ AssertionResult CmpHelperSTRNE(const char* s1_expression,
1554 const char* s2_expression,
1555 const char* s1,
1556 const char* s2);
1557
1558 // The helper function for {ASSERT|EXPECT}_STRCASENE.
1559 //
1560 // INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
1561 GTEST_API_ AssertionResult CmpHelperSTRCASENE(const char* s1_expression,
1562 const char* s2_expression,
1563 const char* s1,
1564 const char* s2);
1565
1566
1567 // Helper function for *_STREQ on wide strings.
1568 //
1569 // INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
1570 GTEST_API_ AssertionResult CmpHelperSTREQ(const char* s1_expression,
1571 const char* s2_expression,
1572 const wchar_t* s1,
1573 const wchar_t* s2);
1574
1575 // Helper function for *_STRNE on wide strings.
1576 //
1577 // INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
1578 GTEST_API_ AssertionResult CmpHelperSTRNE(const char* s1_expression,
1579 const char* s2_expression,
1580 const wchar_t* s1,
1581 const wchar_t* s2);
1582
1583 } // namespace internal
1584
1585 // IsSubstring() and IsNotSubstring() are intended to be used as the
1586 // first argument to {EXPECT,ASSERT}_PRED_FORMAT2(), not by
1587 // themselves. They check whether needle is a substring of haystack
1588 // (NULL is considered a substring of itself only), and return an
1589 // appropriate error message when they fail.
1590 //
1591 // The {needle,haystack}_expr arguments are the stringified
1592 // expressions that generated the two real arguments.
1593 GTEST_API_ AssertionResult IsSubstring(
1594 const char* needle_expr, const char* haystack_expr,
1595 const char* needle, const char* haystack);
1596 GTEST_API_ AssertionResult IsSubstring(
1597 const char* needle_expr, const char* haystack_expr,
1598 const wchar_t* needle, const wchar_t* haystack);
1599 GTEST_API_ AssertionResult IsNotSubstring(
1600 const char* needle_expr, const char* haystack_expr,
1601 const char* needle, const char* haystack);
1602 GTEST_API_ AssertionResult IsNotSubstring(
1603 const char* needle_expr, const char* haystack_expr,
1604 const wchar_t* needle, const wchar_t* haystack);
1605 GTEST_API_ AssertionResult IsSubstring(
1606 const char* needle_expr, const char* haystack_expr,
1607 const ::std::string& needle, const ::std::string& haystack);
1608 GTEST_API_ AssertionResult IsNotSubstring(
1609 const char* needle_expr, const char* haystack_expr,
1610 const ::std::string& needle, const ::std::string& haystack);
1611
1612 #if GTEST_HAS_STD_WSTRING
1613 GTEST_API_ AssertionResult IsSubstring(
1614 const char* needle_expr, const char* haystack_expr,
1615 const ::std::wstring& needle, const ::std::wstring& haystack);
1616 GTEST_API_ AssertionResult IsNotSubstring(
1617 const char* needle_expr, const char* haystack_expr,
1618 const ::std::wstring& needle, const ::std::wstring& haystack);
1619 #endif // GTEST_HAS_STD_WSTRING
1620
1621 namespace internal {
1622
1623 // Helper template function for comparing floating-points.
1624 //
1625 // Template parameter:
1626 //
1627 // RawType: the raw floating-point type (either float or double)
1628 //
1629 // INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
1630 template <typename RawType>
1631 AssertionResult CmpHelperFloatingPointEQ(const char* lhs_expression,
1632 const char* rhs_expression,
1633 RawType lhs_value,
1634 RawType rhs_value) {
1635 const FloatingPoint<RawType> lhs(lhs_value), rhs(rhs_value);
1636
1637 if (lhs.AlmostEquals(rhs)) {
1638 return AssertionSuccess();
1639 }
1640
1641 ::std::stringstream lhs_ss;
1642 lhs_ss << std::setprecision(std::numeric_limits<RawType>::digits10 + 2)
1643 << lhs_value;
1644
1645 ::std::stringstream rhs_ss;
1646 rhs_ss << std::setprecision(std::numeric_limits<RawType>::digits10 + 2)
1647 << rhs_value;
1648
1649 return EqFailure(lhs_expression,
1650 rhs_expression,
1651 StringStreamToString(&lhs_ss),
1652 StringStreamToString(&rhs_ss),
1653 false);
1654 }
1655
1656 // Helper function for implementing ASSERT_NEAR.
1657 //
1658 // INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
1659 GTEST_API_ AssertionResult DoubleNearPredFormat(const char* expr1,
1660 const char* expr2,
1661 const char* abs_error_expr,
1662 double val1,
1663 double val2,
1664 double abs_error);
1665
1666 // INTERNAL IMPLEMENTATION - DO NOT USE IN USER CODE.
1667 // A class that enables one to stream messages to assertion macros
1668 class GTEST_API_ AssertHelper {
1669 public:
1670 // Constructor.
1671 AssertHelper(TestPartResult::Type type,
1672 const char* file,
1673 int line,
1674 const char* message);
1675 ~AssertHelper();
1676
1677 // Message assignment is a semantic trick to enable assertion
1678 // streaming; see the GTEST_MESSAGE_ macro below.
1679 void operator=(const Message& message) const;
1680
1681 private:
1682 // We put our data in a struct so that the size of the AssertHelper class can
1683 // be as small as possible. This is important because gcc is incapable of
1684 // re-using stack space even for temporary variables, so every EXPECT_EQ
1685 // reserves stack space for another AssertHelper.
1686 struct AssertHelperData {
1687 AssertHelperData(TestPartResult::Type t,
1688 const char* srcfile,
1689 int line_num,
1690 const char* msg)
1691 : type(t), file(srcfile), line(line_num), message(msg) { }
1692
1693 TestPartResult::Type const type;
1694 const char* const file;
1695 int const line;
1696 std::string const message;
1697
1698 private:
1699 GTEST_DISALLOW_COPY_AND_ASSIGN_(AssertHelperData);
1700 };
1701
1702 AssertHelperData* const data_;
1703
1704 GTEST_DISALLOW_COPY_AND_ASSIGN_(AssertHelper);
1705 };
1706
1707 } // namespace internal
1708
1709 #if GTEST_HAS_PARAM_TEST
1710 // The pure interface class that all value-parameterized tests inherit from.
1711 // A value-parameterized class must inherit from both ::testing::Test and
1712 // ::testing::WithParamInterface. In most cases that just means inheriting
1713 // from ::testing::TestWithParam, but more complicated test hierarchies
1714 // may need to inherit from Test and WithParamInterface at different levels.
1715 //
1716 // This interface has support for accessing the test parameter value via
1717 // the GetParam() method.
1718 //
1719 // Use it with one of the parameter generator defining functions, like Range(),
1720 // Values(), ValuesIn(), Bool(), and Combine().
1721 //
1722 // class FooTest : public ::testing::TestWithParam<int> {
1723 // protected:
1724 // FooTest() {
1725 // // Can use GetParam() here.
1726 // }
1727 // virtual ~FooTest() {
1728 // // Can use GetParam() here.
1729 // }
1730 // virtual void SetUp() {
1731 // // Can use GetParam() here.
1732 // }
1733 // virtual void TearDown {
1734 // // Can use GetParam() here.
1735 // }
1736 // };
1737 // TEST_P(FooTest, DoesBar) {
1738 // // Can use GetParam() method here.
1739 // Foo foo;
1740 // ASSERT_TRUE(foo.DoesBar(GetParam()));
1741 // }
1742 // INSTANTIATE_TEST_CASE_P(OneToTenRange, FooTest, ::testing::Range(1, 10));
1743
1744 template <typename T>
1745 class WithParamInterface {
1746 public:
1747 typedef T ParamType;
1748 virtual ~WithParamInterface() {}
1749
1750 // The current parameter value. Is also available in the test fixture's
1751 // constructor. This member function is non-static, even though it only
1752 // references static data, to reduce the opportunity for incorrect uses
1753 // like writing 'WithParamInterface<bool>::GetParam()' for a test that
1754 // uses a fixture whose parameter type is int.
1755 const ParamType& GetParam() const {
1756 GTEST_CHECK_(parameter_ != NULL)
1757 << "GetParam() can only be called inside a value-parameterized test "
1758 << "-- did you intend to write TEST_P instead of TEST_F?";
1759 return *parameter_;
1760 }
1761
1762 private:
1763 // Sets parameter value. The caller is responsible for making sure the value
1764 // remains alive and unchanged throughout the current test.
1765 static void SetParam(const ParamType* parameter) {
1766 parameter_ = parameter;
1767 }
1768
1769 // Static value used for accessing parameter during a test lifetime.
1770 static const ParamType* parameter_;
1771
1772 // TestClass must be a subclass of WithParamInterface<T> and Test.
1773 template <class TestClass> friend class internal::ParameterizedTestFactory;
1774 };
1775
1776 template <typename T>
1777 const T* WithParamInterface<T>::parameter_ = NULL;
1778
1779 // Most value-parameterized classes can ignore the existence of
1780 // WithParamInterface, and can just inherit from ::testing::TestWithParam.
1781
1782 template <typename T>
1783 class TestWithParam : public Test, public WithParamInterface<T> {
1784 };
1785
1786 #endif // GTEST_HAS_PARAM_TEST
1787
1788 // Macros for indicating success/failure in test code.
1789
1790 // ADD_FAILURE unconditionally adds a failure to the current test.
1791 // SUCCEED generates a success - it doesn't automatically make the
1792 // current test successful, as a test is only successful when it has
1793 // no failure.
1794 //
1795 // EXPECT_* verifies that a certain condition is satisfied. If not,
1796 // it behaves like ADD_FAILURE. In particular:
1797 //
1798 // EXPECT_TRUE verifies that a Boolean condition is true.
1799 // EXPECT_FALSE verifies that a Boolean condition is false.
1800 //
1801 // FAIL and ASSERT_* are similar to ADD_FAILURE and EXPECT_*, except
1802 // that they will also abort the current function on failure. People
1803 // usually want the fail-fast behavior of FAIL and ASSERT_*, but those
1804 // writing data-driven tests often find themselves using ADD_FAILURE
1805 // and EXPECT_* more.
1806
1807 // Generates a nonfatal failure with a generic message.
1808 #define ADD_FAILURE() GTEST_NONFATAL_FAILURE_("Failed")
1809
1810 // Generates a nonfatal failure at the given source file location with
1811 // a generic message.
1812 #define ADD_FAILURE_AT(file, line) \
1813 GTEST_MESSAGE_AT_(file, line, "Failed", \
1814 ::testing::TestPartResult::kNonFatalFailure)
1815
1816 // Generates a fatal failure with a generic message.
1817 #define GTEST_FAIL() GTEST_FATAL_FAILURE_("Failed")
1818
1819 // Define this macro to 1 to omit the definition of FAIL(), which is a
1820 // generic name and clashes with some other libraries.
1821 #if !GTEST_DONT_DEFINE_FAIL
1822 # define FAIL() GTEST_FAIL()
1823 #endif
1824
1825 // Generates a success with a generic message.
1826 #define GTEST_SUCCEED() GTEST_SUCCESS_("Succeeded")
1827
1828 // Define this macro to 1 to omit the definition of SUCCEED(), which
1829 // is a generic name and clashes with some other libraries.
1830 #if !GTEST_DONT_DEFINE_SUCCEED
1831 # define SUCCEED() GTEST_SUCCEED()
1832 #endif
1833
1834 // Macros for testing exceptions.
1835 //
1836 // * {ASSERT|EXPECT}_THROW(statement, expected_exception):
1837 // Tests that the statement throws the expected exception.
1838 // * {ASSERT|EXPECT}_NO_THROW(statement):
1839 // Tests that the statement doesn't throw any exception.
1840 // * {ASSERT|EXPECT}_ANY_THROW(statement):
1841 // Tests that the statement throws an exception.
1842
1843 #define EXPECT_THROW(statement, expected_exception) \
1844 GTEST_TEST_THROW_(statement, expected_exception, GTEST_NONFATAL_FAILURE_)
1845 #define EXPECT_NO_THROW(statement) \
1846 GTEST_TEST_NO_THROW_(statement, GTEST_NONFATAL_FAILURE_)
1847 #define EXPECT_ANY_THROW(statement) \
1848 GTEST_TEST_ANY_THROW_(statement, GTEST_NONFATAL_FAILURE_)
1849 #define ASSERT_THROW(statement, expected_exception) \
1850 GTEST_TEST_THROW_(statement, expected_exception, GTEST_FATAL_FAILURE_)
1851 #define ASSERT_NO_THROW(statement) \
1852 GTEST_TEST_NO_THROW_(statement, GTEST_FATAL_FAILURE_)
1853 #define ASSERT_ANY_THROW(statement) \
1854 GTEST_TEST_ANY_THROW_(statement, GTEST_FATAL_FAILURE_)
1855
1856 // Boolean assertions. Condition can be either a Boolean expression or an
1857 // AssertionResult. For more information on how to use AssertionResult with
1858 // these macros see comments on that class.
1859 #define EXPECT_TRUE(condition) \
1860 GTEST_TEST_BOOLEAN_((condition), #condition, false, true, \
1861 GTEST_NONFATAL_FAILURE_)
1862 #define EXPECT_FALSE(condition) \
1863 GTEST_TEST_BOOLEAN_(!(condition), #condition, true, false, \
1864 GTEST_NONFATAL_FAILURE_)
1865 #define ASSERT_TRUE(condition) \
1866 GTEST_TEST_BOOLEAN_((condition), #condition, false, true, \
1867 GTEST_FATAL_FAILURE_)
1868 #define ASSERT_FALSE(condition) \
1869 GTEST_TEST_BOOLEAN_(!(condition), #condition, true, false, \
1870 GTEST_FATAL_FAILURE_)
1871
1872 // Includes the auto-generated header that implements a family of
1873 // generic predicate assertion macros.
1874 #include "gtest/gtest_pred_impl.h"
1875
1876 // Macros for testing equalities and inequalities.
1877 //
1878 // * {ASSERT|EXPECT}_EQ(v1, v2): Tests that v1 == v2
1879 // * {ASSERT|EXPECT}_NE(v1, v2): Tests that v1 != v2
1880 // * {ASSERT|EXPECT}_LT(v1, v2): Tests that v1 < v2
1881 // * {ASSERT|EXPECT}_LE(v1, v2): Tests that v1 <= v2
1882 // * {ASSERT|EXPECT}_GT(v1, v2): Tests that v1 > v2
1883 // * {ASSERT|EXPECT}_GE(v1, v2): Tests that v1 >= v2
1884 //
1885 // When they are not, Google Test prints both the tested expressions and
1886 // their actual values. The values must be compatible built-in types,
1887 // or you will get a compiler error. By "compatible" we mean that the
1888 // values can be compared by the respective operator.
1889 //
1890 // Note:
1891 //
1892 // 1. It is possible to make a user-defined type work with
1893 // {ASSERT|EXPECT}_??(), but that requires overloading the
1894 // comparison operators and is thus discouraged by the Google C++
1895 // Usage Guide. Therefore, you are advised to use the
1896 // {ASSERT|EXPECT}_TRUE() macro to assert that two objects are
1897 // equal.
1898 //
1899 // 2. The {ASSERT|EXPECT}_??() macros do pointer comparisons on
1900 // pointers (in particular, C strings). Therefore, if you use it
1901 // with two C strings, you are testing how their locations in memory
1902 // are related, not how their content is related. To compare two C
1903 // strings by content, use {ASSERT|EXPECT}_STR*().
1904 //
1905 // 3. {ASSERT|EXPECT}_EQ(v1, v2) is preferred to
1906 // {ASSERT|EXPECT}_TRUE(v1 == v2), as the former tells you
1907 // what the actual value is when it fails, and similarly for the
1908 // other comparisons.
1909 //
1910 // 4. Do not depend on the order in which {ASSERT|EXPECT}_??()
1911 // evaluate their arguments, which is undefined.
1912 //
1913 // 5. These macros evaluate their arguments exactly once.
1914 //
1915 // Examples:
1916 //
1917 // EXPECT_NE(5, Foo());
1918 // EXPECT_EQ(NULL, a_pointer);
1919 // ASSERT_LT(i, array_size);
1920 // ASSERT_GT(records.size(), 0) << "There is no record left.";
1921
1922 #define EXPECT_EQ(val1, val2) \
1923 EXPECT_PRED_FORMAT2(::testing::internal:: \
1924 EqHelper<GTEST_IS_NULL_LITERAL_(val1)>::Compare, \
1925 val1, val2)
1926 #define EXPECT_NE(val1, val2) \
1927 EXPECT_PRED_FORMAT2(::testing::internal::CmpHelperNE, val1, val2)
1928 #define EXPECT_LE(val1, val2) \
1929 EXPECT_PRED_FORMAT2(::testing::internal::CmpHelperLE, val1, val2)
1930 #define EXPECT_LT(val1, val2) \
1931 EXPECT_PRED_FORMAT2(::testing::internal::CmpHelperLT, val1, val2)
1932 #define EXPECT_GE(val1, val2) \
1933 EXPECT_PRED_FORMAT2(::testing::internal::CmpHelperGE, val1, val2)
1934 #define EXPECT_GT(val1, val2) \
1935 EXPECT_PRED_FORMAT2(::testing::internal::CmpHelperGT, val1, val2)
1936
1937 #define GTEST_ASSERT_EQ(val1, val2) \
1938 ASSERT_PRED_FORMAT2(::testing::internal:: \
1939 EqHelper<GTEST_IS_NULL_LITERAL_(val1)>::Compare, \
1940 val1, val2)
1941 #define GTEST_ASSERT_NE(val1, val2) \
1942 ASSERT_PRED_FORMAT2(::testing::internal::CmpHelperNE, val1, val2)
1943 #define GTEST_ASSERT_LE(val1, val2) \
1944 ASSERT_PRED_FORMAT2(::testing::internal::CmpHelperLE, val1, val2)
1945 #define GTEST_ASSERT_LT(val1, val2) \
1946 ASSERT_PRED_FORMAT2(::testing::internal::CmpHelperLT, val1, val2)
1947 #define GTEST_ASSERT_GE(val1, val2) \
1948 ASSERT_PRED_FORMAT2(::testing::internal::CmpHelperGE, val1, val2)
1949 #define GTEST_ASSERT_GT(val1, val2) \
1950 ASSERT_PRED_FORMAT2(::testing::internal::CmpHelperGT, val1, val2)
1951
1952 // Define macro GTEST_DONT_DEFINE_ASSERT_XY to 1 to omit the definition of
1953 // ASSERT_XY(), which clashes with some users' own code.
1954
1955 #if !GTEST_DONT_DEFINE_ASSERT_EQ
1956 # define ASSERT_EQ(val1, val2) GTEST_ASSERT_EQ(val1, val2)
1957 #endif
1958
1959 #if !GTEST_DONT_DEFINE_ASSERT_NE
1960 # define ASSERT_NE(val1, val2) GTEST_ASSERT_NE(val1, val2)
1961 #endif
1962
1963 #if !GTEST_DONT_DEFINE_ASSERT_LE
1964 # define ASSERT_LE(val1, val2) GTEST_ASSERT_LE(val1, val2)
1965 #endif
1966
1967 #if !GTEST_DONT_DEFINE_ASSERT_LT
1968 # define ASSERT_LT(val1, val2) GTEST_ASSERT_LT(val1, val2)
1969 #endif
1970
1971 #if !GTEST_DONT_DEFINE_ASSERT_GE
1972 # define ASSERT_GE(val1, val2) GTEST_ASSERT_GE(val1, val2)
1973 #endif
1974
1975 #if !GTEST_DONT_DEFINE_ASSERT_GT
1976 # define ASSERT_GT(val1, val2) GTEST_ASSERT_GT(val1, val2)
1977 #endif
1978
1979 // C-string Comparisons. All tests treat NULL and any non-NULL string
1980 // as different. Two NULLs are equal.
1981 //
1982 // * {ASSERT|EXPECT}_STREQ(s1, s2): Tests that s1 == s2
1983 // * {ASSERT|EXPECT}_STRNE(s1, s2): Tests that s1 != s2
1984 // * {ASSERT|EXPECT}_STRCASEEQ(s1, s2): Tests that s1 == s2, ignoring case
1985 // * {ASSERT|EXPECT}_STRCASENE(s1, s2): Tests that s1 != s2, ignoring case
1986 //
1987 // For wide or narrow string objects, you can use the
1988 // {ASSERT|EXPECT}_??() macros.
1989 //
1990 // Don't depend on the order in which the arguments are evaluated,
1991 // which is undefined.
1992 //
1993 // These macros evaluate their arguments exactly once.
1994
1995 #define EXPECT_STREQ(s1, s2) \
1996 EXPECT_PRED_FORMAT2(::testing::internal::CmpHelperSTREQ, s1, s2)
1997 #define EXPECT_STRNE(s1, s2) \
1998 EXPECT_PRED_FORMAT2(::testing::internal::CmpHelperSTRNE, s1, s2)
1999 #define EXPECT_STRCASEEQ(s1, s2) \
2000 EXPECT_PRED_FORMAT2(::testing::internal::CmpHelperSTRCASEEQ, s1, s2)
2001 #define EXPECT_STRCASENE(s1, s2)\
2002 EXPECT_PRED_FORMAT2(::testing::internal::CmpHelperSTRCASENE, s1, s2)
2003
2004 #define ASSERT_STREQ(s1, s2) \
2005 ASSERT_PRED_FORMAT2(::testing::internal::CmpHelperSTREQ, s1, s2)
2006 #define ASSERT_STRNE(s1, s2) \
2007 ASSERT_PRED_FORMAT2(::testing::internal::CmpHelperSTRNE, s1, s2)
2008 #define ASSERT_STRCASEEQ(s1, s2) \
2009 ASSERT_PRED_FORMAT2(::testing::internal::CmpHelperSTRCASEEQ, s1, s2)
2010 #define ASSERT_STRCASENE(s1, s2)\
2011 ASSERT_PRED_FORMAT2(::testing::internal::CmpHelperSTRCASENE, s1, s2)
2012
2013 // Macros for comparing floating-point numbers.
2014 //
2015 // * {ASSERT|EXPECT}_FLOAT_EQ(val1, val2):
2016 // Tests that two float values are almost equal.
2017 // * {ASSERT|EXPECT}_DOUBLE_EQ(val1, val2):
2018 // Tests that two double values are almost equal.
2019 // * {ASSERT|EXPECT}_NEAR(v1, v2, abs_error):
2020 // Tests that v1 and v2 are within the given distance to each other.
2021 //
2022 // Google Test uses ULP-based comparison to automatically pick a default
2023 // error bound that is appropriate for the operands. See the
2024 // FloatingPoint template class in gtest-internal.h if you are
2025 // interested in the implementation details.
2026
2027 #define EXPECT_FLOAT_EQ(val1, val2)\
2028 EXPECT_PRED_FORMAT2(::testing::internal::CmpHelperFloatingPointEQ<float>, \
2029 val1, val2)
2030
2031 #define EXPECT_DOUBLE_EQ(val1, val2)\
2032 EXPECT_PRED_FORMAT2(::testing::internal::CmpHelperFloatingPointEQ<double>, \
2033 val1, val2)
2034
2035 #define ASSERT_FLOAT_EQ(val1, val2)\
2036 ASSERT_PRED_FORMAT2(::testing::internal::CmpHelperFloatingPointEQ<float>, \
2037 val1, val2)
2038
2039 #define ASSERT_DOUBLE_EQ(val1, val2)\
2040 ASSERT_PRED_FORMAT2(::testing::internal::CmpHelperFloatingPointEQ<double>, \
2041 val1, val2)
2042
2043 #define EXPECT_NEAR(val1, val2, abs_error)\
2044 EXPECT_PRED_FORMAT3(::testing::internal::DoubleNearPredFormat, \
2045 val1, val2, abs_error)
2046
2047 #define ASSERT_NEAR(val1, val2, abs_error)\
2048 ASSERT_PRED_FORMAT3(::testing::internal::DoubleNearPredFormat, \
2049 val1, val2, abs_error)
2050
2051 // These predicate format functions work on floating-point values, and
2052 // can be used in {ASSERT|EXPECT}_PRED_FORMAT2*(), e.g.
2053 //
2054 // EXPECT_PRED_FORMAT2(testing::DoubleLE, Foo(), 5.0);
2055
2056 // Asserts that val1 is less than, or almost equal to, val2. Fails
2057 // otherwise. In particular, it fails if either val1 or val2 is NaN.
2058 GTEST_API_ AssertionResult FloatLE(const char* expr1, const char* expr2,
2059 float val1, float val2);
2060 GTEST_API_ AssertionResult DoubleLE(const char* expr1, const char* expr2,
2061 double val1, double val2);
2062
2063
2064 #if GTEST_OS_WINDOWS
2065
2066 // Macros that test for HRESULT failure and success, these are only useful
2067 // on Windows, and rely on Windows SDK macros and APIs to compile.
2068 //
2069 // * {ASSERT|EXPECT}_HRESULT_{SUCCEEDED|FAILED}(expr)
2070 //
2071 // When expr unexpectedly fails or succeeds, Google Test prints the
2072 // expected result and the actual result with both a human-readable
2073 // string representation of the error, if available, as well as the
2074 // hex result code.
2075 # define EXPECT_HRESULT_SUCCEEDED(expr) \
2076 EXPECT_PRED_FORMAT1(::testing::internal::IsHRESULTSuccess, (expr))
2077
2078 # define ASSERT_HRESULT_SUCCEEDED(expr) \
2079 ASSERT_PRED_FORMAT1(::testing::internal::IsHRESULTSuccess, (expr))
2080
2081 # define EXPECT_HRESULT_FAILED(expr) \
2082 EXPECT_PRED_FORMAT1(::testing::internal::IsHRESULTFailure, (expr))
2083
2084 # define ASSERT_HRESULT_FAILED(expr) \
2085 ASSERT_PRED_FORMAT1(::testing::internal::IsHRESULTFailure, (expr))
2086
2087 #endif // GTEST_OS_WINDOWS
2088
2089 // Macros that execute statement and check that it doesn't generate new fatal
2090 // failures in the current thread.
2091 //
2092 // * {ASSERT|EXPECT}_NO_FATAL_FAILURE(statement);
2093 //
2094 // Examples:
2095 //
2096 // EXPECT_NO_FATAL_FAILURE(Process());
2097 // ASSERT_NO_FATAL_FAILURE(Process()) << "Process() failed";
2098 //
2099 #define ASSERT_NO_FATAL_FAILURE(statement) \
2100 GTEST_TEST_NO_FATAL_FAILURE_(statement, GTEST_FATAL_FAILURE_)
2101 #define EXPECT_NO_FATAL_FAILURE(statement) \
2102 GTEST_TEST_NO_FATAL_FAILURE_(statement, GTEST_NONFATAL_FAILURE_)
2103
2104 // Causes a trace (including the source file path, the current line
2105 // number, and the given message) to be included in every test failure
2106 // message generated by code in the current scope. The effect is
2107 // undone when the control leaves the current scope.
2108 //
2109 // The message argument can be anything streamable to std::ostream.
2110 //
2111 // In the implementation, we include the current line number as part
2112 // of the dummy variable name, thus allowing multiple SCOPED_TRACE()s
2113 // to appear in the same block - as long as they are on different
2114 // lines.
2115 #define SCOPED_TRACE(message) \
2116 ::testing::internal::ScopedTrace GTEST_CONCAT_TOKEN_(gtest_trace_, __LINE__)(\
2117 __FILE__, __LINE__, ::testing::Message() << (message))
2118
2119 // Compile-time assertion for type equality.
2120 // StaticAssertTypeEq<type1, type2>() compiles iff type1 and type2 are
2121 // the same type. The value it returns is not interesting.
2122 //
2123 // Instead of making StaticAssertTypeEq a class template, we make it a
2124 // function template that invokes a helper class template. This
2125 // prevents a user from misusing StaticAssertTypeEq<T1, T2> by
2126 // defining objects of that type.
2127 //
2128 // CAVEAT:
2129 //
2130 // When used inside a method of a class template,
2131 // StaticAssertTypeEq<T1, T2>() is effective ONLY IF the method is
2132 // instantiated. For example, given:
2133 //
2134 // template <typename T> class Foo {
2135 // public:
2136 // void Bar() { testing::StaticAssertTypeEq<int, T>(); }
2137 // };
2138 //
2139 // the code:
2140 //
2141 // void Test1() { Foo<bool> foo; }
2142 //
2143 // will NOT generate a compiler error, as Foo<bool>::Bar() is never
2144 // actually instantiated. Instead, you need:
2145 //
2146 // void Test2() { Foo<bool> foo; foo.Bar(); }
2147 //
2148 // to cause a compiler error.
2149 template <typename T1, typename T2>
2150 bool StaticAssertTypeEq() {
2151 (void)internal::StaticAssertTypeEqHelper<T1, T2>();
2152 return true;
2153 }
2154
2155 // Defines a test.
2156 //
2157 // The first parameter is the name of the test case, and the second
2158 // parameter is the name of the test within the test case.
2159 //
2160 // The convention is to end the test case name with "Test". For
2161 // example, a test case for the Foo class can be named FooTest.
2162 //
2163 // Test code should appear between braces after an invocation of
2164 // this macro. Example:
2165 //
2166 // TEST(FooTest, InitializesCorrectly) {
2167 // Foo foo;
2168 // EXPECT_TRUE(foo.StatusIsOK());
2169 // }
2170
2171 // Note that we call GetTestTypeId() instead of GetTypeId<
2172 // ::testing::Test>() here to get the type ID of testing::Test. This
2173 // is to work around a suspected linker bug when using Google Test as
2174 // a framework on Mac OS X. The bug causes GetTypeId<
2175 // ::testing::Test>() to return different values depending on whether
2176 // the call is from the Google Test framework itself or from user test
2177 // code. GetTestTypeId() is guaranteed to always return the same
2178 // value, as it always calls GetTypeId<>() from the Google Test
2179 // framework.
2180 #define GTEST_TEST(test_case_name, test_name)\
2181 GTEST_TEST_(test_case_name, test_name, \
2182 ::testing::Test, ::testing::internal::GetTestTypeId())
2183
2184 // Define this macro to 1 to omit the definition of TEST(), which
2185 // is a generic name and clashes with some other libraries.
2186 #if !GTEST_DONT_DEFINE_TEST
2187 # define TEST(test_case_name, test_name) GTEST_TEST(test_case_name, test_name)
2188 #endif
2189
2190 // Defines a test that uses a test fixture.
2191 //
2192 // The first parameter is the name of the test fixture class, which
2193 // also doubles as the test case name. The second parameter is the
2194 // name of the test within the test case.
2195 //
2196 // A test fixture class must be declared earlier. The user should put
2197 // his test code between braces after using this macro. Example:
2198 //
2199 // class FooTest : public testing::Test {
2200 // protected:
2201 // virtual void SetUp() { b_.AddElement(3); }
2202 //
2203 // Foo a_;
2204 // Foo b_;
2205 // };
2206 //
2207 // TEST_F(FooTest, InitializesCorrectly) {
2208 // EXPECT_TRUE(a_.StatusIsOK());
2209 // }
2210 //
2211 // TEST_F(FooTest, ReturnsElementCountCorrectly) {
2212 // EXPECT_EQ(0, a_.size());
2213 // EXPECT_EQ(1, b_.size());
2214 // }
2215
2216 #define TEST_F(test_fixture, test_name)\
2217 GTEST_TEST_(test_fixture, test_name, test_fixture, \
2218 ::testing::internal::GetTypeId<test_fixture>())
2219
2220 } // namespace testing
2221
2222 // Use this function in main() to run all tests. It returns 0 if all
2223 // tests are successful, or 1 otherwise.
2224 //
2225 // RUN_ALL_TESTS() should be invoked after the command line has been
2226 // parsed by InitGoogleTest().
2227 //
2228 // This function was formerly a macro; thus, it is in the global
2229 // namespace and has an all-caps name.
2230 int RUN_ALL_TESTS() GTEST_MUST_USE_RESULT_;
2231
2232 inline int RUN_ALL_TESTS() {
2233 return ::testing::UnitTest::GetInstance()->Run();
2234 }
2235
2236 #endif // GTEST_INCLUDE_GTEST_GTEST_H_
testing::TestResult
Definition: gtest.h:523
testing::internal::DefaultGlobalTestPartResultReporter
Definition: gtest-internal-inl.h:465
testing::internal::AssertHelper
Definition: gtest.h:1668
testing::internal::is_pointer
Definition: gtest-port.h:2213
testing::internal::Random
Definition: gtest-internal.h:752
testing::TestEventListeners
Definition: gtest.h:1064
testing::Message
Definition: gtest-message.h:85
testing::internal::TestFactoryBase
Definition: gtest-internal.h:464
testing::UnitTest
Definition: gtest.h:1151
testing::TestEventListener
Definition: gtest.h:991
testing::internal::CodeLocation
Definition: gtest-internal.h:504
testing::Test
Definition: gtest.h:371
testing::internal::EnableIf
Definition: gtest-internal.h:946
testing::internal::Mutex
Definition: gtest-port.h:2136
testing::TestPartResult
Definition: gtest-test-part.h:47
testing::internal::EqHelper
Definition: gtest.h:1413
testing::TestProperty
Definition: gtest.h:486
testing::internal::ImplicitlyConvertible
Definition: gtest-internal.h:855
testing::Environment
Definition: gtest.h:972
testing::internal::ScopedTrace
Definition: gtest-internal.h:156
testing::internal::TraceInfo
Definition: gtest-internal-inl.h:457
testing::internal::UnitTestImpl
Definition: gtest-internal-inl.h:499
testing::internal::TestResultAccessor
Definition: gtest-internal-inl.h:1014
testing::TestCase
Definition: gtest.h:778
testing::EmptyTestEventListener
Definition: gtest.h:1044
testing::AssertionResult
Definition: gtest.h:256
testing::internal::scoped_ptr< ::std::string >
testing::TestInfo
Definition: gtest.h:644