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FasTC/GTest/include/gtest/gtest.h
Pavel Krajcevski 2d470a387a Add GTest framework
2013-08-30 12:53:44 -04:00

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// Copyright 2005, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Author: wan@google.com (Zhanyong Wan)
//
// The Google C++ Testing Framework (Google Test)
//
// This header file defines the public API for Google Test. It should be
// included by any test program that uses Google Test.
//
// IMPORTANT NOTE: Due to limitation of the C++ language, we have to
// leave some internal implementation details in this header file.
// They are clearly marked by comments like this:
//
// // INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
//
// Such code is NOT meant to be used by a user directly, and is subject
// to CHANGE WITHOUT NOTICE. Therefore DO NOT DEPEND ON IT in a user
// program!
//
// Acknowledgment: Google Test borrowed the idea of automatic test
// registration from Barthelemy Dagenais' (barthelemy@prologique.com)
// easyUnit framework.
#ifndef GTEST_INCLUDE_GTEST_GTEST_H_
#define GTEST_INCLUDE_GTEST_GTEST_H_
#include <limits>
#include <ostream>
#include <vector>
#include "gtest/internal/gtest-internal.h"
#include "gtest/internal/gtest-string.h"
#include "gtest/gtest-death-test.h"
#include "gtest/gtest-message.h"
#include "gtest/gtest-param-test.h"
#include "gtest/gtest-printers.h"
#include "gtest/gtest_prod.h"
#include "gtest/gtest-test-part.h"
#include "gtest/gtest-typed-test.h"
// Depending on the platform, different string classes are available.
// On Linux, in addition to ::std::string, Google also makes use of
// class ::string, which has the same interface as ::std::string, but
// has a different implementation.
//
// The user can define GTEST_HAS_GLOBAL_STRING to 1 to indicate that
// ::string is available AND is a distinct type to ::std::string, or
// define it to 0 to indicate otherwise.
//
// If the user's ::std::string and ::string are the same class due to
// aliasing, he should define GTEST_HAS_GLOBAL_STRING to 0.
//
// If the user doesn't define GTEST_HAS_GLOBAL_STRING, it is defined
// heuristically.
namespace testing {
// Declares the flags.
// This flag temporary enables the disabled tests.
GTEST_DECLARE_bool_(also_run_disabled_tests);
// This flag brings the debugger on an assertion failure.
GTEST_DECLARE_bool_(break_on_failure);
// This flag controls whether Google Test catches all test-thrown exceptions
// and logs them as failures.
GTEST_DECLARE_bool_(catch_exceptions);
// This flag enables using colors in terminal output. Available values are
// "yes" to enable colors, "no" (disable colors), or "auto" (the default)
// to let Google Test decide.
GTEST_DECLARE_string_(color);
// This flag sets up the filter to select by name using a glob pattern
// the tests to run. If the filter is not given all tests are executed.
GTEST_DECLARE_string_(filter);
// This flag causes the Google Test to list tests. None of the tests listed
// are actually run if the flag is provided.
GTEST_DECLARE_bool_(list_tests);
// This flag controls whether Google Test emits a detailed XML report to a file
// in addition to its normal textual output.
GTEST_DECLARE_string_(output);
// This flags control whether Google Test prints the elapsed time for each
// test.
GTEST_DECLARE_bool_(print_time);
// This flag specifies the random number seed.
GTEST_DECLARE_int32_(random_seed);
// This flag sets how many times the tests are repeated. The default value
// is 1. If the value is -1 the tests are repeating forever.
GTEST_DECLARE_int32_(repeat);
// This flag controls whether Google Test includes Google Test internal
// stack frames in failure stack traces.
GTEST_DECLARE_bool_(show_internal_stack_frames);
// When this flag is specified, tests' order is randomized on every iteration.
GTEST_DECLARE_bool_(shuffle);
// This flag specifies the maximum number of stack frames to be
// printed in a failure message.
GTEST_DECLARE_int32_(stack_trace_depth);
// When this flag is specified, a failed assertion will throw an
// exception if exceptions are enabled, or exit the program with a
// non-zero code otherwise.
GTEST_DECLARE_bool_(throw_on_failure);
// When this flag is set with a "host:port" string, on supported
// platforms test results are streamed to the specified port on
// the specified host machine.
GTEST_DECLARE_string_(stream_result_to);
// The upper limit for valid stack trace depths.
const int kMaxStackTraceDepth = 100;
namespace internal {
class AssertHelper;
class DefaultGlobalTestPartResultReporter;
class ExecDeathTest;
class NoExecDeathTest;
class FinalSuccessChecker;
class GTestFlagSaver;
class StreamingListenerTest;
class TestResultAccessor;
class TestEventListenersAccessor;
class TestEventRepeater;
class UnitTestRecordPropertyTestHelper;
class WindowsDeathTest;
class UnitTestImpl* GetUnitTestImpl();
void ReportFailureInUnknownLocation(TestPartResult::Type result_type,
const std::string& message);
} // namespace internal
// The friend relationship of some of these classes is cyclic.
// If we don't forward declare them the compiler might confuse the classes
// in friendship clauses with same named classes on the scope.
class Test;
class TestCase;
class TestInfo;
class UnitTest;
// A class for indicating whether an assertion was successful. When
// the assertion wasn't successful, the AssertionResult object
// remembers a non-empty message that describes how it failed.
//
// To create an instance of this class, use one of the factory functions
// (AssertionSuccess() and AssertionFailure()).
//
// This class is useful for two purposes:
// 1. Defining predicate functions to be used with Boolean test assertions
// EXPECT_TRUE/EXPECT_FALSE and their ASSERT_ counterparts
// 2. Defining predicate-format functions to be
// used with predicate assertions (ASSERT_PRED_FORMAT*, etc).
//
// For example, if you define IsEven predicate:
//
// testing::AssertionResult IsEven(int n) {
// if ((n % 2) == 0)
// return testing::AssertionSuccess();
// else
// return testing::AssertionFailure() << n << " is odd";
// }
//
// Then the failed expectation EXPECT_TRUE(IsEven(Fib(5)))
// will print the message
//
// Value of: IsEven(Fib(5))
// Actual: false (5 is odd)
// Expected: true
//
// instead of a more opaque
//
// Value of: IsEven(Fib(5))
// Actual: false
// Expected: true
//
// in case IsEven is a simple Boolean predicate.
//
// If you expect your predicate to be reused and want to support informative
// messages in EXPECT_FALSE and ASSERT_FALSE (negative assertions show up
// about half as often as positive ones in our tests), supply messages for
// both success and failure cases:
//
// testing::AssertionResult IsEven(int n) {
// if ((n % 2) == 0)
// return testing::AssertionSuccess() << n << " is even";
// else
// return testing::AssertionFailure() << n << " is odd";
// }
//
// Then a statement EXPECT_FALSE(IsEven(Fib(6))) will print
//
// Value of: IsEven(Fib(6))
// Actual: true (8 is even)
// Expected: false
//
// NB: Predicates that support negative Boolean assertions have reduced
// performance in positive ones so be careful not to use them in tests
// that have lots (tens of thousands) of positive Boolean assertions.
//
// To use this class with EXPECT_PRED_FORMAT assertions such as:
//
// // Verifies that Foo() returns an even number.
// EXPECT_PRED_FORMAT1(IsEven, Foo());
//
// you need to define:
//
// testing::AssertionResult IsEven(const char* expr, int n) {
// if ((n % 2) == 0)
// return testing::AssertionSuccess();
// else
// return testing::AssertionFailure()
// << "Expected: " << expr << " is even\n Actual: it's " << n;
// }
//
// If Foo() returns 5, you will see the following message:
//
// Expected: Foo() is even
// Actual: it's 5
//
class GTEST_API_ AssertionResult {
public:
// Copy constructor.
// Used in EXPECT_TRUE/FALSE(assertion_result).
AssertionResult(const AssertionResult& other);
// Used in the EXPECT_TRUE/FALSE(bool_expression).
explicit AssertionResult(bool success) : success_(success) {}
// Returns true iff the assertion succeeded.
operator bool() const { return success_; } // NOLINT
// Returns the assertion's negation. Used with EXPECT/ASSERT_FALSE.
AssertionResult operator!() const;
// Returns the text streamed into this AssertionResult. Test assertions
// use it when they fail (i.e., the predicate's outcome doesn't match the
// assertion's expectation). When nothing has been streamed into the
// object, returns an empty string.
const char* message() const {
return message_.get() != NULL ? message_->c_str() : "";
}
// TODO(vladl@google.com): Remove this after making sure no clients use it.
// Deprecated; please use message() instead.
const char* failure_message() const { return message(); }
// Streams a custom failure message into this object.
template <typename T> AssertionResult& operator<<(const T& value) {
AppendMessage(Message() << value);
return *this;
}
// Allows streaming basic output manipulators such as endl or flush into
// this object.
AssertionResult& operator<<(
::std::ostream& (*basic_manipulator)(::std::ostream& stream)) {
AppendMessage(Message() << basic_manipulator);
return *this;
}
private:
// Appends the contents of message to message_.
void AppendMessage(const Message& a_message) {
if (message_.get() == NULL)
message_.reset(new ::std::string);
message_->append(a_message.GetString().c_str());
}
// Stores result of the assertion predicate.
bool success_;
// Stores the message describing the condition in case the expectation
// construct is not satisfied with the predicate's outcome.
// Referenced via a pointer to avoid taking too much stack frame space
// with test assertions.
internal::scoped_ptr< ::std::string> message_;
GTEST_DISALLOW_ASSIGN_(AssertionResult);
};
// Makes a successful assertion result.
GTEST_API_ AssertionResult AssertionSuccess();
// Makes a failed assertion result.
GTEST_API_ AssertionResult AssertionFailure();
// Makes a failed assertion result with the given failure message.
// Deprecated; use AssertionFailure() << msg.
GTEST_API_ AssertionResult AssertionFailure(const Message& msg);
// The abstract class that all tests inherit from.
//
// In Google Test, a unit test program contains one or many TestCases, and
// each TestCase contains one or many Tests.
//
// When you define a test using the TEST macro, you don't need to
// explicitly derive from Test - the TEST macro automatically does
// this for you.
//
// The only time you derive from Test is when defining a test fixture
// to be used a TEST_F. For example:
//
// class FooTest : public testing::Test {
// protected:
// virtual void SetUp() { ... }
// virtual void TearDown() { ... }
// ...
// };
//
// TEST_F(FooTest, Bar) { ... }
// TEST_F(FooTest, Baz) { ... }
//
// Test is not copyable.
class GTEST_API_ Test {
public:
friend class TestInfo;
// Defines types for pointers to functions that set up and tear down
// a test case.
typedef internal::SetUpTestCaseFunc SetUpTestCaseFunc;
typedef internal::TearDownTestCaseFunc TearDownTestCaseFunc;
// The d'tor is virtual as we intend to inherit from Test.
virtual ~Test();
// Sets up the stuff shared by all tests in this test case.
//
// Google Test will call Foo::SetUpTestCase() before running the first
// test in test case Foo. Hence a sub-class can define its own
// SetUpTestCase() method to shadow the one defined in the super
// class.
static void SetUpTestCase() {}
// Tears down the stuff shared by all tests in this test case.
//
// Google Test will call Foo::TearDownTestCase() after running the last
// test in test case Foo. Hence a sub-class can define its own
// TearDownTestCase() method to shadow the one defined in the super
// class.
static void TearDownTestCase() {}
// Returns true iff the current test has a fatal failure.
static bool HasFatalFailure();
// Returns true iff the current test has a non-fatal failure.
static bool HasNonfatalFailure();
// Returns true iff the current test has a (either fatal or
// non-fatal) failure.
static bool HasFailure() { return HasFatalFailure() || HasNonfatalFailure(); }
// Logs a property for the current test, test case, or for the entire
// invocation of the test program when used outside of the context of a
// test case. Only the last value for a given key is remembered. These
// are public static so they can be called from utility functions that are
// not members of the test fixture. Calls to RecordProperty made during
// lifespan of the test (from the moment its constructor starts to the
// moment its destructor finishes) will be output in XML as attributes of
// the <testcase> element. Properties recorded from fixture's
// SetUpTestCase or TearDownTestCase are logged as attributes of the
// corresponding <testsuite> element. Calls to RecordProperty made in the
// global context (before or after invocation of RUN_ALL_TESTS and from
// SetUp/TearDown method of Environment objects registered with Google
// Test) will be output as attributes of the <testsuites> element.
static void RecordProperty(const std::string& key, const std::string& value);
static void RecordProperty(const std::string& key, int value);
protected:
// Creates a Test object.
Test();
// Sets up the test fixture.
virtual void SetUp();
// Tears down the test fixture.
virtual void TearDown();
private:
// Returns true iff the current test has the same fixture class as
// the first test in the current test case.
static bool HasSameFixtureClass();
// Runs the test after the test fixture has been set up.
//
// A sub-class must implement this to define the test logic.
//
// DO NOT OVERRIDE THIS FUNCTION DIRECTLY IN A USER PROGRAM.
// Instead, use the TEST or TEST_F macro.
virtual void TestBody() = 0;
// Sets up, executes, and tears down the test.
void Run();
// Deletes self. We deliberately pick an unusual name for this
// internal method to avoid clashing with names used in user TESTs.
void DeleteSelf_() { delete this; }
// Uses a GTestFlagSaver to save and restore all Google Test flags.
const internal::GTestFlagSaver* const gtest_flag_saver_;
// Often a user mis-spells SetUp() as Setup() and spends a long time
// wondering why it is never called by Google Test. The declaration of
// the following method is solely for catching such an error at
// compile time:
//
// - The return type is deliberately chosen to be not void, so it
// will be a conflict if a user declares void Setup() in his test
// fixture.
//
// - This method is private, so it will be another compiler error
// if a user calls it from his test fixture.
//
// DO NOT OVERRIDE THIS FUNCTION.
//
// If you see an error about overriding the following function or
// about it being private, you have mis-spelled SetUp() as Setup().
struct Setup_should_be_spelled_SetUp {};
virtual Setup_should_be_spelled_SetUp* Setup() { return NULL; }
// We disallow copying Tests.
GTEST_DISALLOW_COPY_AND_ASSIGN_(Test);
};
typedef internal::TimeInMillis TimeInMillis;
// A copyable object representing a user specified test property which can be
// output as a key/value string pair.
//
// Don't inherit from TestProperty as its destructor is not virtual.
class TestProperty {
public:
// C'tor. TestProperty does NOT have a default constructor.
// Always use this constructor (with parameters) to create a
// TestProperty object.
TestProperty(const std::string& a_key, const std::string& a_value) :
key_(a_key), value_(a_value) {
}
// Gets the user supplied key.
const char* key() const {
return key_.c_str();
}
// Gets the user supplied value.
const char* value() const {
return value_.c_str();
}
// Sets a new value, overriding the one supplied in the constructor.
void SetValue(const std::string& new_value) {
value_ = new_value;
}
private:
// The key supplied by the user.
std::string key_;
// The value supplied by the user.
std::string value_;
};
// The result of a single Test. This includes a list of
// TestPartResults, a list of TestProperties, a count of how many
// death tests there are in the Test, and how much time it took to run
// the Test.
//
// TestResult is not copyable.
class GTEST_API_ TestResult {
public:
// Creates an empty TestResult.
TestResult();
// D'tor. Do not inherit from TestResult.
~TestResult();
// Gets the number of all test parts. This is the sum of the number
// of successful test parts and the number of failed test parts.
int total_part_count() const;
// Returns the number of the test properties.
int test_property_count() const;
// Returns true iff the test passed (i.e. no test part failed).
bool Passed() const { return !Failed(); }
// Returns true iff the test failed.
bool Failed() const;
// Returns true iff the test fatally failed.
bool HasFatalFailure() const;
// Returns true iff the test has a non-fatal failure.
bool HasNonfatalFailure() const;
// Returns the elapsed time, in milliseconds.
TimeInMillis elapsed_time() const { return elapsed_time_; }
// Returns the i-th test part result among all the results. i can range
// from 0 to test_property_count() - 1. If i is not in that range, aborts
// the program.
const TestPartResult& GetTestPartResult(int i) const;
// Returns the i-th test property. i can range from 0 to
// test_property_count() - 1. If i is not in that range, aborts the
// program.
const TestProperty& GetTestProperty(int i) const;
private:
friend class TestInfo;
friend class TestCase;
friend class UnitTest;
friend class internal::DefaultGlobalTestPartResultReporter;
friend class internal::ExecDeathTest;
friend class internal::TestResultAccessor;
friend class internal::UnitTestImpl;
friend class internal::WindowsDeathTest;
// Gets the vector of TestPartResults.
const std::vector<TestPartResult>& test_part_results() const {
return test_part_results_;
}
// Gets the vector of TestProperties.
const std::vector<TestProperty>& test_properties() const {
return test_properties_;
}
// Sets the elapsed time.
void set_elapsed_time(TimeInMillis elapsed) { elapsed_time_ = elapsed; }
// Adds a test property to the list. The property is validated and may add
// a non-fatal failure if invalid (e.g., if it conflicts with reserved
// key names). If a property is already recorded for the same key, the
// value will be updated, rather than storing multiple values for the same
// key. xml_element specifies the element for which the property is being
// recorded and is used for validation.
void RecordProperty(const std::string& xml_element,
const TestProperty& test_property);
// Adds a failure if the key is a reserved attribute of Google Test
// testcase tags. Returns true if the property is valid.
// TODO(russr): Validate attribute names are legal and human readable.
static bool ValidateTestProperty(const std::string& xml_element,
const TestProperty& test_property);
// Adds a test part result to the list.
void AddTestPartResult(const TestPartResult& test_part_result);
// Returns the death test count.
int death_test_count() const { return death_test_count_; }
// Increments the death test count, returning the new count.
int increment_death_test_count() { return ++death_test_count_; }
// Clears the test part results.
void ClearTestPartResults();
// Clears the object.
void Clear();
// Protects mutable state of the property vector and of owned
// properties, whose values may be updated.
internal::Mutex test_properites_mutex_;
// The vector of TestPartResults
std::vector<TestPartResult> test_part_results_;
// The vector of TestProperties
std::vector<TestProperty> test_properties_;
// Running count of death tests.
int death_test_count_;
// The elapsed time, in milliseconds.
TimeInMillis elapsed_time_;
// We disallow copying TestResult.
GTEST_DISALLOW_COPY_AND_ASSIGN_(TestResult);
}; // class TestResult
// A TestInfo object stores the following information about a test:
//
// Test case name
// Test name
// Whether the test should be run
// A function pointer that creates the test object when invoked
// Test result
//
// The constructor of TestInfo registers itself with the UnitTest
// singleton such that the RUN_ALL_TESTS() macro knows which tests to
// run.
class GTEST_API_ TestInfo {
public:
// Destructs a TestInfo object. This function is not virtual, so
// don't inherit from TestInfo.
~TestInfo();
// Returns the test case name.
const char* test_case_name() const { return test_case_name_.c_str(); }
// Returns the test name.
const char* name() const { return name_.c_str(); }
// Returns the name of the parameter type, or NULL if this is not a typed
// or a type-parameterized test.
const char* type_param() const {
if (type_param_.get() != NULL)
return type_param_->c_str();
return NULL;
}
// Returns the text representation of the value parameter, or NULL if this
// is not a value-parameterized test.
const char* value_param() const {
if (value_param_.get() != NULL)
return value_param_->c_str();
return NULL;
}
// Returns true if this test should run, that is if the test is not
// disabled (or it is disabled but the also_run_disabled_tests flag has
// been specified) and its full name matches the user-specified filter.
//
// Google Test allows the user to filter the tests by their full names.
// The full name of a test Bar in test case Foo is defined as
// "Foo.Bar". Only the tests that match the filter will run.
//
// A filter is a colon-separated list of glob (not regex) patterns,
// optionally followed by a '-' and a colon-separated list of
// negative patterns (tests to exclude). A test is run if it
// matches one of the positive patterns and does not match any of
// the negative patterns.
//
// For example, *A*:Foo.* is a filter that matches any string that
// contains the character 'A' or starts with "Foo.".
bool should_run() const { return should_run_; }
// Returns true iff this test will appear in the XML report.
bool is_reportable() const {
// For now, the XML report includes all tests matching the filter.
// In the future, we may trim tests that are excluded because of
// sharding.
return matches_filter_;
}
// Returns the result of the test.
const TestResult* result() const { return &result_; }
private:
#if GTEST_HAS_DEATH_TEST
friend class internal::DefaultDeathTestFactory;
#endif // GTEST_HAS_DEATH_TEST
friend class Test;
friend class TestCase;
friend class internal::UnitTestImpl;
friend class internal::StreamingListenerTest;
friend TestInfo* internal::MakeAndRegisterTestInfo(
const char* test_case_name,
const char* name,
const char* type_param,
const char* value_param,
internal::TypeId fixture_class_id,
Test::SetUpTestCaseFunc set_up_tc,
Test::TearDownTestCaseFunc tear_down_tc,
internal::TestFactoryBase* factory);
// Constructs a TestInfo object. The newly constructed instance assumes
// ownership of the factory object.
TestInfo(const std::string& test_case_name,
const std::string& name,
const char* a_type_param, // NULL if not a type-parameterized test
const char* a_value_param, // NULL if not a value-parameterized test
internal::TypeId fixture_class_id,
internal::TestFactoryBase* factory);
// Increments the number of death tests encountered in this test so
// far.
int increment_death_test_count() {
return result_.increment_death_test_count();
}
// Creates the test object, runs it, records its result, and then
// deletes it.
void Run();
static void ClearTestResult(TestInfo* test_info) {
test_info->result_.Clear();
}
// These fields are immutable properties of the test.
const std::string test_case_name_; // Test case name
const std::string name_; // Test name
// Name of the parameter type, or NULL if this is not a typed or a
// type-parameterized test.
const internal::scoped_ptr<const ::std::string> type_param_;
// Text representation of the value parameter, or NULL if this is not a
// value-parameterized test.
const internal::scoped_ptr<const ::std::string> value_param_;
const internal::TypeId fixture_class_id_; // ID of the test fixture class
bool should_run_; // True iff this test should run
bool is_disabled_; // True iff this test is disabled
bool matches_filter_; // True if this test matches the
// user-specified filter.
internal::TestFactoryBase* const factory_; // The factory that creates
// the test object
// This field is mutable and needs to be reset before running the
// test for the second time.
TestResult result_;
GTEST_DISALLOW_COPY_AND_ASSIGN_(TestInfo);
};
// A test case, which consists of a vector of TestInfos.
//
// TestCase is not copyable.
class GTEST_API_ TestCase {
public:
// Creates a TestCase with the given name.
//
// TestCase does NOT have a default constructor. Always use this
// constructor to create a TestCase object.
//
// Arguments:
//
// name: name of the test case
// a_type_param: the name of the test's type parameter, or NULL if
// this is not a type-parameterized test.
// set_up_tc: pointer to the function that sets up the test case
// tear_down_tc: pointer to the function that tears down the test case
TestCase(const char* name, const char* a_type_param,
Test::SetUpTestCaseFunc set_up_tc,
Test::TearDownTestCaseFunc tear_down_tc);
// Destructor of TestCase.
virtual ~TestCase();
// Gets the name of the TestCase.
const char* name() const { return name_.c_str(); }
// Returns the name of the parameter type, or NULL if this is not a
// type-parameterized test case.
const char* type_param() const {
if (type_param_.get() != NULL)
return type_param_->c_str();
return NULL;
}
// Returns true if any test in this test case should run.
bool should_run() const { return should_run_; }
// Gets the number of successful tests in this test case.
int successful_test_count() const;
// Gets the number of failed tests in this test case.
int failed_test_count() const;
// Gets the number of disabled tests that will be reported in the XML report.
int reportable_disabled_test_count() const;
// Gets the number of disabled tests in this test case.
int disabled_test_count() const;
// Gets the number of tests to be printed in the XML report.
int reportable_test_count() const;
// Get the number of tests in this test case that should run.
int test_to_run_count() const;
// Gets the number of all tests in this test case.
int total_test_count() const;
// Returns true iff the test case passed.
bool Passed() const { return !Failed(); }
// Returns true iff the test case failed.
bool Failed() const { return failed_test_count() > 0; }
// Returns the elapsed time, in milliseconds.
TimeInMillis elapsed_time() const { return elapsed_time_; }
// Returns the i-th test among all the tests. i can range from 0 to
// total_test_count() - 1. If i is not in that range, returns NULL.
const TestInfo* GetTestInfo(int i) const;
// Returns the TestResult that holds test properties recorded during
// execution of SetUpTestCase and TearDownTestCase.
const TestResult& ad_hoc_test_result() const { return ad_hoc_test_result_; }
private:
friend class Test;
friend class internal::UnitTestImpl;
// Gets the (mutable) vector of TestInfos in this TestCase.
std::vector<TestInfo*>& test_info_list() { return test_info_list_; }
// Gets the (immutable) vector of TestInfos in this TestCase.
const std::vector<TestInfo*>& test_info_list() const {
return test_info_list_;
}
// Returns the i-th test among all the tests. i can range from 0 to
// total_test_count() - 1. If i is not in that range, returns NULL.
TestInfo* GetMutableTestInfo(int i);
// Sets the should_run member.
void set_should_run(bool should) { should_run_ = should; }
// Adds a TestInfo to this test case. Will delete the TestInfo upon
// destruction of the TestCase object.
void AddTestInfo(TestInfo * test_info);
// Clears the results of all tests in this test case.
void ClearResult();
// Clears the results of all tests in the given test case.
static void ClearTestCaseResult(TestCase* test_case) {
test_case->ClearResult();
}
// Runs every test in this TestCase.
void Run();
// Runs SetUpTestCase() for this TestCase. This wrapper is needed
// for catching exceptions thrown from SetUpTestCase().
void RunSetUpTestCase() { (*set_up_tc_)(); }
// Runs TearDownTestCase() for this TestCase. This wrapper is
// needed for catching exceptions thrown from TearDownTestCase().
void RunTearDownTestCase() { (*tear_down_tc_)(); }
// Returns true iff test passed.
static bool TestPassed(const TestInfo* test_info) {
return test_info->should_run() && test_info->result()->Passed();
}
// Returns true iff test failed.
static bool TestFailed(const TestInfo* test_info) {
return test_info->should_run() && test_info->result()->Failed();
}
// Returns true iff the test is disabled and will be reported in the XML
// report.
static bool TestReportableDisabled(const TestInfo* test_info) {
return test_info->is_reportable() && test_info->is_disabled_;
}
// Returns true iff test is disabled.
static bool TestDisabled(const TestInfo* test_info) {
return test_info->is_disabled_;
}
// Returns true iff this test will appear in the XML report.
static bool TestReportable(const TestInfo* test_info) {
return test_info->is_reportable();
}
// Returns true if the given test should run.
static bool ShouldRunTest(const TestInfo* test_info) {
return test_info->should_run();
}
// Shuffles the tests in this test case.
void ShuffleTests(internal::Random* random);
// Restores the test order to before the first shuffle.
void UnshuffleTests();
// Name of the test case.
std::string name_;
// Name of the parameter type, or NULL if this is not a typed or a
// type-parameterized test.
const internal::scoped_ptr<const ::std::string> type_param_;
// The vector of TestInfos in their original order. It owns the
// elements in the vector.
std::vector<TestInfo*> test_info_list_;
// Provides a level of indirection for the test list to allow easy
// shuffling and restoring the test order. The i-th element in this
// vector is the index of the i-th test in the shuffled test list.
std::vector<int> test_indices_;
// Pointer to the function that sets up the test case.
Test::SetUpTestCaseFunc set_up_tc_;
// Pointer to the function that tears down the test case.
Test::TearDownTestCaseFunc tear_down_tc_;
// True iff any test in this test case should run.
bool should_run_;
// Elapsed time, in milliseconds.
TimeInMillis elapsed_time_;
// Holds test properties recorded during execution of SetUpTestCase and
// TearDownTestCase.
TestResult ad_hoc_test_result_;
// We disallow copying TestCases.
GTEST_DISALLOW_COPY_AND_ASSIGN_(TestCase);
};
// An Environment object is capable of setting up and tearing down an
// environment. The user should subclass this to define his own
// environment(s).
//
// An Environment object does the set-up and tear-down in virtual
// methods SetUp() and TearDown() instead of the constructor and the
// destructor, as:
//
// 1. You cannot safely throw from a destructor. This is a problem
// as in some cases Google Test is used where exceptions are enabled, and
// we may want to implement ASSERT_* using exceptions where they are
// available.
// 2. You cannot use ASSERT_* directly in a constructor or
// destructor.
class Environment {
public:
// The d'tor is virtual as we need to subclass Environment.
virtual ~Environment() {}
// Override this to define how to set up the environment.
virtual void SetUp() {}
// Override this to define how to tear down the environment.
virtual void TearDown() {}
private:
// If you see an error about overriding the following function or
// about it being private, you have mis-spelled SetUp() as Setup().
struct Setup_should_be_spelled_SetUp {};
virtual Setup_should_be_spelled_SetUp* Setup() { return NULL; }
};
// The interface for tracing execution of tests. The methods are organized in
// the order the corresponding events are fired.
class TestEventListener {
public:
virtual ~TestEventListener() {}
// Fired before any test activity starts.
virtual void OnTestProgramStart(const UnitTest& unit_test) = 0;
// Fired before each iteration of tests starts. There may be more than
// one iteration if GTEST_FLAG(repeat) is set. iteration is the iteration
// index, starting from 0.
virtual void OnTestIterationStart(const UnitTest& unit_test,
int iteration) = 0;
// Fired before environment set-up for each iteration of tests starts.
virtual void OnEnvironmentsSetUpStart(const UnitTest& unit_test) = 0;
// Fired after environment set-up for each iteration of tests ends.
virtual void OnEnvironmentsSetUpEnd(const UnitTest& unit_test) = 0;
// Fired before the test case starts.
virtual void OnTestCaseStart(const TestCase& test_case) = 0;
// Fired before the test starts.
virtual void OnTestStart(const TestInfo& test_info) = 0;
// Fired after a failed assertion or a SUCCEED() invocation.
virtual void OnTestPartResult(const TestPartResult& test_part_result) = 0;
// Fired after the test ends.
virtual void OnTestEnd(const TestInfo& test_info) = 0;
// Fired after the test case ends.
virtual void OnTestCaseEnd(const TestCase& test_case) = 0;
// Fired before environment tear-down for each iteration of tests starts.
virtual void OnEnvironmentsTearDownStart(const UnitTest& unit_test) = 0;
// Fired after environment tear-down for each iteration of tests ends.
virtual void OnEnvironmentsTearDownEnd(const UnitTest& unit_test) = 0;
// Fired after each iteration of tests finishes.
virtual void OnTestIterationEnd(const UnitTest& unit_test,
int iteration) = 0;
// Fired after all test activities have ended.
virtual void OnTestProgramEnd(const UnitTest& unit_test) = 0;
};
// The convenience class for users who need to override just one or two
// methods and are not concerned that a possible change to a signature of
// the methods they override will not be caught during the build. For
// comments about each method please see the definition of TestEventListener
// above.
class EmptyTestEventListener : public TestEventListener {
public:
virtual void OnTestProgramStart(const UnitTest& /*unit_test*/) {}
virtual void OnTestIterationStart(const UnitTest& /*unit_test*/,
int /*iteration*/) {}
virtual void OnEnvironmentsSetUpStart(const UnitTest& /*unit_test*/) {}
virtual void OnEnvironmentsSetUpEnd(const UnitTest& /*unit_test*/) {}
virtual void OnTestCaseStart(const TestCase& /*test_case*/) {}
virtual void OnTestStart(const TestInfo& /*test_info*/) {}
virtual void OnTestPartResult(const TestPartResult& /*test_part_result*/) {}
virtual void OnTestEnd(const TestInfo& /*test_info*/) {}
virtual void OnTestCaseEnd(const TestCase& /*test_case*/) {}
virtual void OnEnvironmentsTearDownStart(const UnitTest& /*unit_test*/) {}
virtual void OnEnvironmentsTearDownEnd(const UnitTest& /*unit_test*/) {}
virtual void OnTestIterationEnd(const UnitTest& /*unit_test*/,
int /*iteration*/) {}
virtual void OnTestProgramEnd(const UnitTest& /*unit_test*/) {}
};
// TestEventListeners lets users add listeners to track events in Google Test.
class GTEST_API_ TestEventListeners {
public:
TestEventListeners();
~TestEventListeners();
// Appends an event listener to the end of the list. Google Test assumes
// the ownership of the listener (i.e. it will delete the listener when
// the test program finishes).
void Append(TestEventListener* listener);
// Removes the given event listener from the list and returns it. It then
// becomes the caller's responsibility to delete the listener. Returns
// NULL if the listener is not found in the list.
TestEventListener* Release(TestEventListener* listener);
// Returns the standard listener responsible for the default console
// output. Can be removed from the listeners list to shut down default
// console output. Note that removing this object from the listener list
// with Release transfers its ownership to the caller and makes this
// function return NULL the next time.
TestEventListener* default_result_printer() const {
return default_result_printer_;
}
// Returns the standard listener responsible for the default XML output
// controlled by the --gtest_output=xml flag. Can be removed from the
// listeners list by users who want to shut down the default XML output
// controlled by this flag and substitute it with custom one. Note that
// removing this object from the listener list with Release transfers its
// ownership to the caller and makes this function return NULL the next
// time.
TestEventListener* default_xml_generator() const {
return default_xml_generator_;
}
private:
friend class TestCase;
friend class TestInfo;
friend class internal::DefaultGlobalTestPartResultReporter;
friend class internal::NoExecDeathTest;
friend class internal::TestEventListenersAccessor;
friend class internal::UnitTestImpl;
// Returns repeater that broadcasts the TestEventListener events to all
// subscribers.
TestEventListener* repeater();
// Sets the default_result_printer attribute to the provided listener.
// The listener is also added to the listener list and previous
// default_result_printer is removed from it and deleted. The listener can
// also be NULL in which case it will not be added to the list. Does
// nothing if the previous and the current listener objects are the same.
void SetDefaultResultPrinter(TestEventListener* listener);
// Sets the default_xml_generator attribute to the provided listener. The
// listener is also added to the listener list and previous
// default_xml_generator is removed from it and deleted. The listener can
// also be NULL in which case it will not be added to the list. Does
// nothing if the previous and the current listener objects are the same.
void SetDefaultXmlGenerator(TestEventListener* listener);
// Controls whether events will be forwarded by the repeater to the
// listeners in the list.
bool EventForwardingEnabled() const;
void SuppressEventForwarding();
// The actual list of listeners.
internal::TestEventRepeater* repeater_;
// Listener responsible for the standard result output.
TestEventListener* default_result_printer_;
// Listener responsible for the creation of the XML output file.
TestEventListener* default_xml_generator_;
// We disallow copying TestEventListeners.
GTEST_DISALLOW_COPY_AND_ASSIGN_(TestEventListeners);
};
// A UnitTest consists of a vector of TestCases.
//
// This is a singleton class. The only instance of UnitTest is
// created when UnitTest::GetInstance() is first called. This
// instance is never deleted.
//
// UnitTest is not copyable.
//
// This class is thread-safe as long as the methods are called
// according to their specification.
class GTEST_API_ UnitTest {
public:
// Gets the singleton UnitTest object. The first time this method
// is called, a UnitTest object is constructed and returned.
// Consecutive calls will return the same object.
static UnitTest* GetInstance();
// Runs all tests in this UnitTest object and prints the result.
// Returns 0 if successful, or 1 otherwise.
//
// This method can only be called from the main thread.
//
// INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
int Run() GTEST_MUST_USE_RESULT_;
// Returns the working directory when the first TEST() or TEST_F()
// was executed. The UnitTest object owns the string.
const char* original_working_dir() const;
// Returns the TestCase object for the test that's currently running,
// or NULL if no test is running.
const TestCase* current_test_case() const
GTEST_LOCK_EXCLUDED_(mutex_);
// Returns the TestInfo object for the test that's currently running,
// or NULL if no test is running.
const TestInfo* current_test_info() const
GTEST_LOCK_EXCLUDED_(mutex_);
// Returns the random seed used at the start of the current test run.
int random_seed() const;
#if GTEST_HAS_PARAM_TEST
// Returns the ParameterizedTestCaseRegistry object used to keep track of
// value-parameterized tests and instantiate and register them.
//
// INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
internal::ParameterizedTestCaseRegistry& parameterized_test_registry()
GTEST_LOCK_EXCLUDED_(mutex_);
#endif // GTEST_HAS_PARAM_TEST
// Gets the number of successful test cases.
int successful_test_case_count() const;
// Gets the number of failed test cases.
int failed_test_case_count() const;
// Gets the number of all test cases.
int total_test_case_count() const;
// Gets the number of all test cases that contain at least one test
// that should run.
int test_case_to_run_count() const;
// Gets the number of successful tests.
int successful_test_count() const;
// Gets the number of failed tests.
int failed_test_count() const;
// Gets the number of disabled tests that will be reported in the XML report.
int reportable_disabled_test_count() const;
// Gets the number of disabled tests.
int disabled_test_count() const;
// Gets the number of tests to be printed in the XML report.
int reportable_test_count() const;
// Gets the number of all tests.
int total_test_count() const;
// Gets the number of tests that should run.
int test_to_run_count() const;
// Gets the time of the test program start, in ms from the start of the
// UNIX epoch.
TimeInMillis start_timestamp() const;
// Gets the elapsed time, in milliseconds.
TimeInMillis elapsed_time() const;
// Returns true iff the unit test passed (i.e. all test cases passed).
bool Passed() const;
// Returns true iff the unit test failed (i.e. some test case failed
// or something outside of all tests failed).
bool Failed() const;
// Gets the i-th test case among all the test cases. i can range from 0 to
// total_test_case_count() - 1. If i is not in that range, returns NULL.
const TestCase* GetTestCase(int i) const;
// Returns the TestResult containing information on test failures and
// properties logged outside of individual test cases.
const TestResult& ad_hoc_test_result() const;
// Returns the list of event listeners that can be used to track events
// inside Google Test.
TestEventListeners& listeners();
private:
// Registers and returns a global test environment. When a test
// program is run, all global test environments will be set-up in
// the order they were registered. After all tests in the program
// have finished, all global test environments will be torn-down in
// the *reverse* order they were registered.
//
// The UnitTest object takes ownership of the given environment.
//
// This method can only be called from the main thread.
Environment* AddEnvironment(Environment* env);
// Adds a TestPartResult to the current TestResult object. All
// Google Test assertion macros (e.g. ASSERT_TRUE, EXPECT_EQ, etc)
// eventually call this to report their results. The user code
// should use the assertion macros instead of calling this directly.
void AddTestPartResult(TestPartResult::Type result_type,
const char* file_name,
int line_number,
const std::string& message,
const std::string& os_stack_trace)
GTEST_LOCK_EXCLUDED_(mutex_);
// Adds a TestProperty to the current TestResult object when invoked from
// inside a test, to current TestCase's ad_hoc_test_result_ when invoked
// from SetUpTestCase or TearDownTestCase, or to the global property set
// when invoked elsewhere. If the result already contains a property with
// the same key, the value will be updated.
void RecordProperty(const std::string& key, const std::string& value);
// Gets the i-th test case among all the test cases. i can range from 0 to
// total_test_case_count() - 1. If i is not in that range, returns NULL.
TestCase* GetMutableTestCase(int i);
// Accessors for the implementation object.
internal::UnitTestImpl* impl() { return impl_; }
const internal::UnitTestImpl* impl() const { return impl_; }
// These classes and funcions are friends as they need to access private
// members of UnitTest.
friend class Test;
friend class internal::AssertHelper;
friend class internal::ScopedTrace;
friend class internal::StreamingListenerTest;
friend class internal::UnitTestRecordPropertyTestHelper;
friend Environment* AddGlobalTestEnvironment(Environment* env);
friend internal::UnitTestImpl* internal::GetUnitTestImpl();
friend void internal::ReportFailureInUnknownLocation(
TestPartResult::Type result_type,
const std::string& message);
// Creates an empty UnitTest.
UnitTest();
// D'tor
virtual ~UnitTest();
// Pushes a trace defined by SCOPED_TRACE() on to the per-thread
// Google Test trace stack.
void PushGTestTrace(const internal::TraceInfo& trace)
GTEST_LOCK_EXCLUDED_(mutex_);
// Pops a trace from the per-thread Google Test trace stack.
void PopGTestTrace()
GTEST_LOCK_EXCLUDED_(mutex_);
// Protects mutable state in *impl_. This is mutable as some const
// methods need to lock it too.
mutable internal::Mutex mutex_;
// Opaque implementation object. This field is never changed once
// the object is constructed. We don't mark it as const here, as
// doing so will cause a warning in the constructor of UnitTest.
// Mutable state in *impl_ is protected by mutex_.
internal::UnitTestImpl* impl_;
// We disallow copying UnitTest.
GTEST_DISALLOW_COPY_AND_ASSIGN_(UnitTest);
};
// A convenient wrapper for adding an environment for the test
// program.
//
// You should call this before RUN_ALL_TESTS() is called, probably in
// main(). If you use gtest_main, you need to call this before main()
// starts for it to take effect. For example, you can define a global
// variable like this:
//
// testing::Environment* const foo_env =
// testing::AddGlobalTestEnvironment(new FooEnvironment);
//
// However, we strongly recommend you to write your own main() and
// call AddGlobalTestEnvironment() there, as relying on initialization
// of global variables makes the code harder to read and may cause
// problems when you register multiple environments from different
// translation units and the environments have dependencies among them
// (remember that the compiler doesn't guarantee the order in which
// global variables from different translation units are initialized).
inline Environment* AddGlobalTestEnvironment(Environment* env) {
return UnitTest::GetInstance()->AddEnvironment(env);
}
// Initializes Google Test. This must be called before calling
// RUN_ALL_TESTS(). In particular, it parses a command line for the
// flags that Google Test recognizes. Whenever a Google Test flag is
// seen, it is removed from argv, and *argc is decremented.
//
// No value is returned. Instead, the Google Test flag variables are
// updated.
//
// Calling the function for the second time has no user-visible effect.
GTEST_API_ void InitGoogleTest(int* argc, char** argv);
// This overloaded version can be used in Windows programs compiled in
// UNICODE mode.
GTEST_API_ void InitGoogleTest(int* argc, wchar_t** argv);
namespace internal {
// FormatForComparison<ToPrint, OtherOperand>::Format(value) formats a
// value of type ToPrint that is an operand of a comparison assertion
// (e.g. ASSERT_EQ). OtherOperand is the type of the other operand in
// the comparison, and is used to help determine the best way to
// format the value. In particular, when the value is a C string
// (char pointer) and the other operand is an STL string object, we
// want to format the C string as a string, since we know it is
// compared by value with the string object. If the value is a char
// pointer but the other operand is not an STL string object, we don't
// know whether the pointer is supposed to point to a NUL-terminated
// string, and thus want to print it as a pointer to be safe.
//
// INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
// The default case.
template <typename ToPrint, typename OtherOperand>
class FormatForComparison {
public:
static ::std::string Format(const ToPrint& value) {
return ::testing::PrintToString(value);
}
};
// Array.
template <typename ToPrint, size_t N, typename OtherOperand>
class FormatForComparison<ToPrint[N], OtherOperand> {
public:
static ::std::string Format(const ToPrint* value) {
return FormatForComparison<const ToPrint*, OtherOperand>::Format(value);
}
};
// By default, print C string as pointers to be safe, as we don't know
// whether they actually point to a NUL-terminated string.
#define GTEST_IMPL_FORMAT_C_STRING_AS_POINTER_(CharType) \
template <typename OtherOperand> \
class FormatForComparison<CharType*, OtherOperand> { \
public: \
static ::std::string Format(CharType* value) { \
return ::testing::PrintToString(static_cast<const void*>(value)); \
} \
}
GTEST_IMPL_FORMAT_C_STRING_AS_POINTER_(char);
GTEST_IMPL_FORMAT_C_STRING_AS_POINTER_(const char);
GTEST_IMPL_FORMAT_C_STRING_AS_POINTER_(wchar_t);
GTEST_IMPL_FORMAT_C_STRING_AS_POINTER_(const wchar_t);
#undef GTEST_IMPL_FORMAT_C_STRING_AS_POINTER_
// If a C string is compared with an STL string object, we know it's meant
// to point to a NUL-terminated string, and thus can print it as a string.
#define GTEST_IMPL_FORMAT_C_STRING_AS_STRING_(CharType, OtherStringType) \
template <> \
class FormatForComparison<CharType*, OtherStringType> { \
public: \
static ::std::string Format(CharType* value) { \
return ::testing::PrintToString(value); \
} \
}
GTEST_IMPL_FORMAT_C_STRING_AS_STRING_(char, ::std::string);
GTEST_IMPL_FORMAT_C_STRING_AS_STRING_(const char, ::std::string);
#if GTEST_HAS_GLOBAL_STRING
GTEST_IMPL_FORMAT_C_STRING_AS_STRING_(char, ::string);
GTEST_IMPL_FORMAT_C_STRING_AS_STRING_(const char, ::string);
#endif
#if GTEST_HAS_GLOBAL_WSTRING
GTEST_IMPL_FORMAT_C_STRING_AS_STRING_(wchar_t, ::wstring);
GTEST_IMPL_FORMAT_C_STRING_AS_STRING_(const wchar_t, ::wstring);
#endif
#if GTEST_HAS_STD_WSTRING
GTEST_IMPL_FORMAT_C_STRING_AS_STRING_(wchar_t, ::std::wstring);
GTEST_IMPL_FORMAT_C_STRING_AS_STRING_(const wchar_t, ::std::wstring);
#endif
#undef GTEST_IMPL_FORMAT_C_STRING_AS_STRING_
// Formats a comparison assertion (e.g. ASSERT_EQ, EXPECT_LT, and etc)
// operand to be used in a failure message. The type (but not value)
// of the other operand may affect the format. This allows us to
// print a char* as a raw pointer when it is compared against another
// char* or void*, and print it as a C string when it is compared
// against an std::string object, for example.
//
// INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
template <typename T1, typename T2>
std::string FormatForComparisonFailureMessage(
const T1& value, const T2& /* other_operand */) {
return FormatForComparison<T1, T2>::Format(value);
}
// The helper function for {ASSERT|EXPECT}_EQ.
template <typename T1, typename T2>
AssertionResult CmpHelperEQ(const char* expected_expression,
const char* actual_expression,
const T1& expected,
const T2& actual) {
#ifdef _MSC_VER
# pragma warning(push) // Saves the current warning state.
# pragma warning(disable:4389) // Temporarily disables warning on
// signed/unsigned mismatch.
#endif
if (expected == actual) {
return AssertionSuccess();
}
#ifdef _MSC_VER
# pragma warning(pop) // Restores the warning state.
#endif
return EqFailure(expected_expression,
actual_expression,
FormatForComparisonFailureMessage(expected, actual),
FormatForComparisonFailureMessage(actual, expected),
false);
}
// With this overloaded version, we allow anonymous enums to be used
// in {ASSERT|EXPECT}_EQ when compiled with gcc 4, as anonymous enums
// can be implicitly cast to BiggestInt.
GTEST_API_ AssertionResult CmpHelperEQ(const char* expected_expression,
const char* actual_expression,
BiggestInt expected,
BiggestInt actual);
// The helper class for {ASSERT|EXPECT}_EQ. The template argument
// lhs_is_null_literal is true iff the first argument to ASSERT_EQ()
// is a null pointer literal. The following default implementation is
// for lhs_is_null_literal being false.
template <bool lhs_is_null_literal>
class EqHelper {
public:
// This templatized version is for the general case.
template <typename T1, typename T2>
static AssertionResult Compare(const char* expected_expression,
const char* actual_expression,
const T1& expected,
const T2& actual) {
return CmpHelperEQ(expected_expression, actual_expression, expected,
actual);
}
// With this overloaded version, we allow anonymous enums to be used
// in {ASSERT|EXPECT}_EQ when compiled with gcc 4, as anonymous
// enums can be implicitly cast to BiggestInt.
//
// Even though its body looks the same as the above version, we
// cannot merge the two, as it will make anonymous enums unhappy.
static AssertionResult Compare(const char* expected_expression,
const char* actual_expression,
BiggestInt expected,
BiggestInt actual) {
return CmpHelperEQ(expected_expression, actual_expression, expected,
actual);
}
};
// This specialization is used when the first argument to ASSERT_EQ()
// is a null pointer literal, like NULL, false, or 0.
template <>
class EqHelper<true> {
public:
// We define two overloaded versions of Compare(). The first
// version will be picked when the second argument to ASSERT_EQ() is
// NOT a pointer, e.g. ASSERT_EQ(0, AnIntFunction()) or
// EXPECT_EQ(false, a_bool).
template <typename T1, typename T2>
static AssertionResult Compare(
const char* expected_expression,
const char* actual_expression,
const T1& expected,
const T2& actual,
// The following line prevents this overload from being considered if T2
// is not a pointer type. We need this because ASSERT_EQ(NULL, my_ptr)
// expands to Compare("", "", NULL, my_ptr), which requires a conversion
// to match the Secret* in the other overload, which would otherwise make
// this template match better.
typename EnableIf<!is_pointer<T2>::value>::type* = 0) {
return CmpHelperEQ(expected_expression, actual_expression, expected,
actual);
}
// This version will be picked when the second argument to ASSERT_EQ() is a
// pointer, e.g. ASSERT_EQ(NULL, a_pointer).
template <typename T>
static AssertionResult Compare(
const char* expected_expression,
const char* actual_expression,
// We used to have a second template parameter instead of Secret*. That
// template parameter would deduce to 'long', making this a better match
// than the first overload even without the first overload's EnableIf.
// Unfortunately, gcc with -Wconversion-null warns when "passing NULL to
// non-pointer argument" (even a deduced integral argument), so the old
// implementation caused warnings in user code.
Secret* /* expected (NULL) */,
T* actual) {
// We already know that 'expected' is a null pointer.
return CmpHelperEQ(expected_expression, actual_expression,
static_cast<T*>(NULL), actual);
}
};
// A macro for implementing the helper functions needed to implement
// ASSERT_?? and EXPECT_??. It is here just to avoid copy-and-paste
// of similar code.
//
// For each templatized helper function, we also define an overloaded
// version for BiggestInt in order to reduce code bloat and allow
// anonymous enums to be used with {ASSERT|EXPECT}_?? when compiled
// with gcc 4.
//
// INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
#define GTEST_IMPL_CMP_HELPER_(op_name, op)\
template <typename T1, typename T2>\
AssertionResult CmpHelper##op_name(const char* expr1, const char* expr2, \
const T1& val1, const T2& val2) {\
if (val1 op val2) {\
return AssertionSuccess();\
} else {\
return AssertionFailure() \
<< "Expected: (" << expr1 << ") " #op " (" << expr2\
<< "), actual: " << FormatForComparisonFailureMessage(val1, val2)\
<< " vs " << FormatForComparisonFailureMessage(val2, val1);\
}\
}\
GTEST_API_ AssertionResult CmpHelper##op_name(\
const char* expr1, const char* expr2, BiggestInt val1, BiggestInt val2)
// INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
// Implements the helper function for {ASSERT|EXPECT}_NE
GTEST_IMPL_CMP_HELPER_(NE, !=);
// Implements the helper function for {ASSERT|EXPECT}_LE
GTEST_IMPL_CMP_HELPER_(LE, <=);
// Implements the helper function for {ASSERT|EXPECT}_LT
GTEST_IMPL_CMP_HELPER_(LT, <);
// Implements the helper function for {ASSERT|EXPECT}_GE
GTEST_IMPL_CMP_HELPER_(GE, >=);
// Implements the helper function for {ASSERT|EXPECT}_GT
GTEST_IMPL_CMP_HELPER_(GT, >);
#undef GTEST_IMPL_CMP_HELPER_
// The helper function for {ASSERT|EXPECT}_STREQ.
//
// INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
GTEST_API_ AssertionResult CmpHelperSTREQ(const char* expected_expression,
const char* actual_expression,
const char* expected,
const char* actual);
// The helper function for {ASSERT|EXPECT}_STRCASEEQ.
//
// INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
GTEST_API_ AssertionResult CmpHelperSTRCASEEQ(const char* expected_expression,
const char* actual_expression,
const char* expected,
const char* actual);
// The helper function for {ASSERT|EXPECT}_STRNE.
//
// INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
GTEST_API_ AssertionResult CmpHelperSTRNE(const char* s1_expression,
const char* s2_expression,
const char* s1,
const char* s2);
// The helper function for {ASSERT|EXPECT}_STRCASENE.
//
// INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
GTEST_API_ AssertionResult CmpHelperSTRCASENE(const char* s1_expression,
const char* s2_expression,
const char* s1,
const char* s2);
// Helper function for *_STREQ on wide strings.
//
// INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
GTEST_API_ AssertionResult CmpHelperSTREQ(const char* expected_expression,
const char* actual_expression,
const wchar_t* expected,
const wchar_t* actual);
// Helper function for *_STRNE on wide strings.
//
// INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
GTEST_API_ AssertionResult CmpHelperSTRNE(const char* s1_expression,
const char* s2_expression,
const wchar_t* s1,
const wchar_t* s2);
} // namespace internal
// IsSubstring() and IsNotSubstring() are intended to be used as the
// first argument to {EXPECT,ASSERT}_PRED_FORMAT2(), not by
// themselves. They check whether needle is a substring of haystack
// (NULL is considered a substring of itself only), and return an
// appropriate error message when they fail.
//
// The {needle,haystack}_expr arguments are the stringified
// expressions that generated the two real arguments.
GTEST_API_ AssertionResult IsSubstring(
const char* needle_expr, const char* haystack_expr,
const char* needle, const char* haystack);
GTEST_API_ AssertionResult IsSubstring(
const char* needle_expr, const char* haystack_expr,
const wchar_t* needle, const wchar_t* haystack);
GTEST_API_ AssertionResult IsNotSubstring(
const char* needle_expr, const char* haystack_expr,
const char* needle, const char* haystack);
GTEST_API_ AssertionResult IsNotSubstring(
const char* needle_expr, const char* haystack_expr,
const wchar_t* needle, const wchar_t* haystack);
GTEST_API_ AssertionResult IsSubstring(
const char* needle_expr, const char* haystack_expr,
const ::std::string& needle, const ::std::string& haystack);
GTEST_API_ AssertionResult IsNotSubstring(
const char* needle_expr, const char* haystack_expr,
const ::std::string& needle, const ::std::string& haystack);
#if GTEST_HAS_STD_WSTRING
GTEST_API_ AssertionResult IsSubstring(
const char* needle_expr, const char* haystack_expr,
const ::std::wstring& needle, const ::std::wstring& haystack);
GTEST_API_ AssertionResult IsNotSubstring(
const char* needle_expr, const char* haystack_expr,
const ::std::wstring& needle, const ::std::wstring& haystack);
#endif // GTEST_HAS_STD_WSTRING
namespace internal {
// Helper template function for comparing floating-points.
//
// Template parameter:
//
// RawType: the raw floating-point type (either float or double)
//
// INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
template <typename RawType>
AssertionResult CmpHelperFloatingPointEQ(const char* expected_expression,
const char* actual_expression,
RawType expected,
RawType actual) {
const FloatingPoint<RawType> lhs(expected), rhs(actual);
if (lhs.AlmostEquals(rhs)) {
return AssertionSuccess();
}
::std::stringstream expected_ss;
expected_ss << std::setprecision(std::numeric_limits<RawType>::digits10 + 2)
<< expected;
::std::stringstream actual_ss;
actual_ss << std::setprecision(std::numeric_limits<RawType>::digits10 + 2)
<< actual;
return EqFailure(expected_expression,
actual_expression,
StringStreamToString(&expected_ss),
StringStreamToString(&actual_ss),
false);
}
// Helper function for implementing ASSERT_NEAR.
//
// INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
GTEST_API_ AssertionResult DoubleNearPredFormat(const char* expr1,
const char* expr2,
const char* abs_error_expr,
double val1,
double val2,
double abs_error);
// INTERNAL IMPLEMENTATION - DO NOT USE IN USER CODE.
// A class that enables one to stream messages to assertion macros
class GTEST_API_ AssertHelper {
public:
// Constructor.
AssertHelper(TestPartResult::Type type,
const char* file,
int line,
const char* message);
~AssertHelper();
// Message assignment is a semantic trick to enable assertion
// streaming; see the GTEST_MESSAGE_ macro below.
void operator=(const Message& message) const;
private:
// We put our data in a struct so that the size of the AssertHelper class can
// be as small as possible. This is important because gcc is incapable of
// re-using stack space even for temporary variables, so every EXPECT_EQ
// reserves stack space for another AssertHelper.
struct AssertHelperData {
AssertHelperData(TestPartResult::Type t,
const char* srcfile,
int line_num,
const char* msg)
: type(t), file(srcfile), line(line_num), message(msg) { }
TestPartResult::Type const type;
const char* const file;
int const line;
std::string const message;
private:
GTEST_DISALLOW_COPY_AND_ASSIGN_(AssertHelperData);
};
AssertHelperData* const data_;
GTEST_DISALLOW_COPY_AND_ASSIGN_(AssertHelper);
};
} // namespace internal
#if GTEST_HAS_PARAM_TEST
// The pure interface class that all value-parameterized tests inherit from.
// A value-parameterized class must inherit from both ::testing::Test and
// ::testing::WithParamInterface. In most cases that just means inheriting
// from ::testing::TestWithParam, but more complicated test hierarchies
// may need to inherit from Test and WithParamInterface at different levels.
//
// This interface has support for accessing the test parameter value via
// the GetParam() method.
//
// Use it with one of the parameter generator defining functions, like Range(),
// Values(), ValuesIn(), Bool(), and Combine().
//
// class FooTest : public ::testing::TestWithParam<int> {
// protected:
// FooTest() {
// // Can use GetParam() here.
// }
// virtual ~FooTest() {
// // Can use GetParam() here.
// }
// virtual void SetUp() {
// // Can use GetParam() here.
// }
// virtual void TearDown {
// // Can use GetParam() here.
// }
// };
// TEST_P(FooTest, DoesBar) {
// // Can use GetParam() method here.
// Foo foo;
// ASSERT_TRUE(foo.DoesBar(GetParam()));
// }
// INSTANTIATE_TEST_CASE_P(OneToTenRange, FooTest, ::testing::Range(1, 10));
template <typename T>
class WithParamInterface {
public:
typedef T ParamType;
virtual ~WithParamInterface() {}
// The current parameter value. Is also available in the test fixture's
// constructor. This member function is non-static, even though it only
// references static data, to reduce the opportunity for incorrect uses
// like writing 'WithParamInterface<bool>::GetParam()' for a test that
// uses a fixture whose parameter type is int.
const ParamType& GetParam() const {
GTEST_CHECK_(parameter_ != NULL)
<< "GetParam() can only be called inside a value-parameterized test "
<< "-- did you intend to write TEST_P instead of TEST_F?";
return *parameter_;
}
private:
// Sets parameter value. The caller is responsible for making sure the value
// remains alive and unchanged throughout the current test.
static void SetParam(const ParamType* parameter) {
parameter_ = parameter;
}
// Static value used for accessing parameter during a test lifetime.
static const ParamType* parameter_;
// TestClass must be a subclass of WithParamInterface<T> and Test.
template <class TestClass> friend class internal::ParameterizedTestFactory;
};
template <typename T>
const T* WithParamInterface<T>::parameter_ = NULL;
// Most value-parameterized classes can ignore the existence of
// WithParamInterface, and can just inherit from ::testing::TestWithParam.
template <typename T>
class TestWithParam : public Test, public WithParamInterface<T> {
};
#endif // GTEST_HAS_PARAM_TEST
// Macros for indicating success/failure in test code.
// ADD_FAILURE unconditionally adds a failure to the current test.
// SUCCEED generates a success - it doesn't automatically make the
// current test successful, as a test is only successful when it has
// no failure.
//
// EXPECT_* verifies that a certain condition is satisfied. If not,
// it behaves like ADD_FAILURE. In particular:
//
// EXPECT_TRUE verifies that a Boolean condition is true.
// EXPECT_FALSE verifies that a Boolean condition is false.
//
// FAIL and ASSERT_* are similar to ADD_FAILURE and EXPECT_*, except
// that they will also abort the current function on failure. People
// usually want the fail-fast behavior of FAIL and ASSERT_*, but those
// writing data-driven tests often find themselves using ADD_FAILURE
// and EXPECT_* more.
// Generates a nonfatal failure with a generic message.
#define ADD_FAILURE() GTEST_NONFATAL_FAILURE_("Failed")
// Generates a nonfatal failure at the given source file location with
// a generic message.
#define ADD_FAILURE_AT(file, line) \
GTEST_MESSAGE_AT_(file, line, "Failed", \
::testing::TestPartResult::kNonFatalFailure)
// Generates a fatal failure with a generic message.
#define GTEST_FAIL() GTEST_FATAL_FAILURE_("Failed")
// Define this macro to 1 to omit the definition of FAIL(), which is a
// generic name and clashes with some other libraries.
#if !GTEST_DONT_DEFINE_FAIL
# define FAIL() GTEST_FAIL()
#endif
// Generates a success with a generic message.
#define GTEST_SUCCEED() GTEST_SUCCESS_("Succeeded")
// Define this macro to 1 to omit the definition of SUCCEED(), which
// is a generic name and clashes with some other libraries.
#if !GTEST_DONT_DEFINE_SUCCEED
# define SUCCEED() GTEST_SUCCEED()
#endif
// Macros for testing exceptions.
//
// * {ASSERT|EXPECT}_THROW(statement, expected_exception):
// Tests that the statement throws the expected exception.
// * {ASSERT|EXPECT}_NO_THROW(statement):
// Tests that the statement doesn't throw any exception.
// * {ASSERT|EXPECT}_ANY_THROW(statement):
// Tests that the statement throws an exception.
#define EXPECT_THROW(statement, expected_exception) \
GTEST_TEST_THROW_(statement, expected_exception, GTEST_NONFATAL_FAILURE_)
#define EXPECT_NO_THROW(statement) \
GTEST_TEST_NO_THROW_(statement, GTEST_NONFATAL_FAILURE_)
#define EXPECT_ANY_THROW(statement) \
GTEST_TEST_ANY_THROW_(statement, GTEST_NONFATAL_FAILURE_)
#define ASSERT_THROW(statement, expected_exception) \
GTEST_TEST_THROW_(statement, expected_exception, GTEST_FATAL_FAILURE_)
#define ASSERT_NO_THROW(statement) \
GTEST_TEST_NO_THROW_(statement, GTEST_FATAL_FAILURE_)
#define ASSERT_ANY_THROW(statement) \
GTEST_TEST_ANY_THROW_(statement, GTEST_FATAL_FAILURE_)
// Boolean assertions. Condition can be either a Boolean expression or an
// AssertionResult. For more information on how to use AssertionResult with
// these macros see comments on that class.
#define EXPECT_TRUE(condition) \
GTEST_TEST_BOOLEAN_(condition, #condition, false, true, \
GTEST_NONFATAL_FAILURE_)
#define EXPECT_FALSE(condition) \
GTEST_TEST_BOOLEAN_(!(condition), #condition, true, false, \
GTEST_NONFATAL_FAILURE_)
#define ASSERT_TRUE(condition) \
GTEST_TEST_BOOLEAN_(condition, #condition, false, true, \
GTEST_FATAL_FAILURE_)
#define ASSERT_FALSE(condition) \
GTEST_TEST_BOOLEAN_(!(condition), #condition, true, false, \
GTEST_FATAL_FAILURE_)
// Includes the auto-generated header that implements a family of
// generic predicate assertion macros.
#include "gtest/gtest_pred_impl.h"
// Macros for testing equalities and inequalities.
//
// * {ASSERT|EXPECT}_EQ(expected, actual): Tests that expected == actual
// * {ASSERT|EXPECT}_NE(v1, v2): Tests that v1 != v2
// * {ASSERT|EXPECT}_LT(v1, v2): Tests that v1 < v2
// * {ASSERT|EXPECT}_LE(v1, v2): Tests that v1 <= v2
// * {ASSERT|EXPECT}_GT(v1, v2): Tests that v1 > v2
// * {ASSERT|EXPECT}_GE(v1, v2): Tests that v1 >= v2
//
// When they are not, Google Test prints both the tested expressions and
// their actual values. The values must be compatible built-in types,
// or you will get a compiler error. By "compatible" we mean that the
// values can be compared by the respective operator.
//
// Note:
//
// 1. It is possible to make a user-defined type work with
// {ASSERT|EXPECT}_??(), but that requires overloading the
// comparison operators and is thus discouraged by the Google C++
// Usage Guide. Therefore, you are advised to use the
// {ASSERT|EXPECT}_TRUE() macro to assert that two objects are
// equal.
//
// 2. The {ASSERT|EXPECT}_??() macros do pointer comparisons on
// pointers (in particular, C strings). Therefore, if you use it
// with two C strings, you are testing how their locations in memory
// are related, not how their content is related. To compare two C
// strings by content, use {ASSERT|EXPECT}_STR*().
//
// 3. {ASSERT|EXPECT}_EQ(expected, actual) is preferred to
// {ASSERT|EXPECT}_TRUE(expected == actual), as the former tells you
// what the actual value is when it fails, and similarly for the
// other comparisons.
//
// 4. Do not depend on the order in which {ASSERT|EXPECT}_??()
// evaluate their arguments, which is undefined.
//
// 5. These macros evaluate their arguments exactly once.
//
// Examples:
//
// EXPECT_NE(5, Foo());
// EXPECT_EQ(NULL, a_pointer);
// ASSERT_LT(i, array_size);
// ASSERT_GT(records.size(), 0) << "There is no record left.";
#define EXPECT_EQ(expected, actual) \
EXPECT_PRED_FORMAT2(::testing::internal:: \
EqHelper<GTEST_IS_NULL_LITERAL_(expected)>::Compare, \
expected, actual)
#define EXPECT_NE(expected, actual) \
EXPECT_PRED_FORMAT2(::testing::internal::CmpHelperNE, expected, actual)
#define EXPECT_LE(val1, val2) \
EXPECT_PRED_FORMAT2(::testing::internal::CmpHelperLE, val1, val2)
#define EXPECT_LT(val1, val2) \
EXPECT_PRED_FORMAT2(::testing::internal::CmpHelperLT, val1, val2)
#define EXPECT_GE(val1, val2) \
EXPECT_PRED_FORMAT2(::testing::internal::CmpHelperGE, val1, val2)
#define EXPECT_GT(val1, val2) \
EXPECT_PRED_FORMAT2(::testing::internal::CmpHelperGT, val1, val2)
#define GTEST_ASSERT_EQ(expected, actual) \
ASSERT_PRED_FORMAT2(::testing::internal:: \
EqHelper<GTEST_IS_NULL_LITERAL_(expected)>::Compare, \
expected, actual)
#define GTEST_ASSERT_NE(val1, val2) \
ASSERT_PRED_FORMAT2(::testing::internal::CmpHelperNE, val1, val2)
#define GTEST_ASSERT_LE(val1, val2) \
ASSERT_PRED_FORMAT2(::testing::internal::CmpHelperLE, val1, val2)
#define GTEST_ASSERT_LT(val1, val2) \
ASSERT_PRED_FORMAT2(::testing::internal::CmpHelperLT, val1, val2)
#define GTEST_ASSERT_GE(val1, val2) \
ASSERT_PRED_FORMAT2(::testing::internal::CmpHelperGE, val1, val2)
#define GTEST_ASSERT_GT(val1, val2) \
ASSERT_PRED_FORMAT2(::testing::internal::CmpHelperGT, val1, val2)
// Define macro GTEST_DONT_DEFINE_ASSERT_XY to 1 to omit the definition of
// ASSERT_XY(), which clashes with some users' own code.
#if !GTEST_DONT_DEFINE_ASSERT_EQ
# define ASSERT_EQ(val1, val2) GTEST_ASSERT_EQ(val1, val2)
#endif
#if !GTEST_DONT_DEFINE_ASSERT_NE
# define ASSERT_NE(val1, val2) GTEST_ASSERT_NE(val1, val2)
#endif
#if !GTEST_DONT_DEFINE_ASSERT_LE
# define ASSERT_LE(val1, val2) GTEST_ASSERT_LE(val1, val2)
#endif
#if !GTEST_DONT_DEFINE_ASSERT_LT
# define ASSERT_LT(val1, val2) GTEST_ASSERT_LT(val1, val2)
#endif
#if !GTEST_DONT_DEFINE_ASSERT_GE
# define ASSERT_GE(val1, val2) GTEST_ASSERT_GE(val1, val2)
#endif
#if !GTEST_DONT_DEFINE_ASSERT_GT
# define ASSERT_GT(val1, val2) GTEST_ASSERT_GT(val1, val2)
#endif
// C-string Comparisons. All tests treat NULL and any non-NULL string
// as different. Two NULLs are equal.
//
// * {ASSERT|EXPECT}_STREQ(s1, s2): Tests that s1 == s2
// * {ASSERT|EXPECT}_STRNE(s1, s2): Tests that s1 != s2
// * {ASSERT|EXPECT}_STRCASEEQ(s1, s2): Tests that s1 == s2, ignoring case
// * {ASSERT|EXPECT}_STRCASENE(s1, s2): Tests that s1 != s2, ignoring case
//
// For wide or narrow string objects, you can use the
// {ASSERT|EXPECT}_??() macros.
//
// Don't depend on the order in which the arguments are evaluated,
// which is undefined.
//
// These macros evaluate their arguments exactly once.
#define EXPECT_STREQ(expected, actual) \
EXPECT_PRED_FORMAT2(::testing::internal::CmpHelperSTREQ, expected, actual)
#define EXPECT_STRNE(s1, s2) \
EXPECT_PRED_FORMAT2(::testing::internal::CmpHelperSTRNE, s1, s2)
#define EXPECT_STRCASEEQ(expected, actual) \
EXPECT_PRED_FORMAT2(::testing::internal::CmpHelperSTRCASEEQ, expected, actual)
#define EXPECT_STRCASENE(s1, s2)\
EXPECT_PRED_FORMAT2(::testing::internal::CmpHelperSTRCASENE, s1, s2)
#define ASSERT_STREQ(expected, actual) \
ASSERT_PRED_FORMAT2(::testing::internal::CmpHelperSTREQ, expected, actual)
#define ASSERT_STRNE(s1, s2) \
ASSERT_PRED_FORMAT2(::testing::internal::CmpHelperSTRNE, s1, s2)
#define ASSERT_STRCASEEQ(expected, actual) \
ASSERT_PRED_FORMAT2(::testing::internal::CmpHelperSTRCASEEQ, expected, actual)
#define ASSERT_STRCASENE(s1, s2)\
ASSERT_PRED_FORMAT2(::testing::internal::CmpHelperSTRCASENE, s1, s2)
// Macros for comparing floating-point numbers.
//
// * {ASSERT|EXPECT}_FLOAT_EQ(expected, actual):
// Tests that two float values are almost equal.
// * {ASSERT|EXPECT}_DOUBLE_EQ(expected, actual):
// Tests that two double values are almost equal.
// * {ASSERT|EXPECT}_NEAR(v1, v2, abs_error):
// Tests that v1 and v2 are within the given distance to each other.
//
// Google Test uses ULP-based comparison to automatically pick a default
// error bound that is appropriate for the operands. See the
// FloatingPoint template class in gtest-internal.h if you are
// interested in the implementation details.
#define EXPECT_FLOAT_EQ(expected, actual)\
EXPECT_PRED_FORMAT2(::testing::internal::CmpHelperFloatingPointEQ<float>, \
expected, actual)
#define EXPECT_DOUBLE_EQ(expected, actual)\
EXPECT_PRED_FORMAT2(::testing::internal::CmpHelperFloatingPointEQ<double>, \
expected, actual)
#define ASSERT_FLOAT_EQ(expected, actual)\
ASSERT_PRED_FORMAT2(::testing::internal::CmpHelperFloatingPointEQ<float>, \
expected, actual)
#define ASSERT_DOUBLE_EQ(expected, actual)\
ASSERT_PRED_FORMAT2(::testing::internal::CmpHelperFloatingPointEQ<double>, \
expected, actual)
#define EXPECT_NEAR(val1, val2, abs_error)\
EXPECT_PRED_FORMAT3(::testing::internal::DoubleNearPredFormat, \
val1, val2, abs_error)
#define ASSERT_NEAR(val1, val2, abs_error)\
ASSERT_PRED_FORMAT3(::testing::internal::DoubleNearPredFormat, \
val1, val2, abs_error)
// These predicate format functions work on floating-point values, and
// can be used in {ASSERT|EXPECT}_PRED_FORMAT2*(), e.g.
//
// EXPECT_PRED_FORMAT2(testing::DoubleLE, Foo(), 5.0);
// Asserts that val1 is less than, or almost equal to, val2. Fails
// otherwise. In particular, it fails if either val1 or val2 is NaN.
GTEST_API_ AssertionResult FloatLE(const char* expr1, const char* expr2,
float val1, float val2);
GTEST_API_ AssertionResult DoubleLE(const char* expr1, const char* expr2,
double val1, double val2);
#if GTEST_OS_WINDOWS
// Macros that test for HRESULT failure and success, these are only useful
// on Windows, and rely on Windows SDK macros and APIs to compile.
//
// * {ASSERT|EXPECT}_HRESULT_{SUCCEEDED|FAILED}(expr)
//
// When expr unexpectedly fails or succeeds, Google Test prints the
// expected result and the actual result with both a human-readable
// string representation of the error, if available, as well as the
// hex result code.
# define EXPECT_HRESULT_SUCCEEDED(expr) \
EXPECT_PRED_FORMAT1(::testing::internal::IsHRESULTSuccess, (expr))
# define ASSERT_HRESULT_SUCCEEDED(expr) \
ASSERT_PRED_FORMAT1(::testing::internal::IsHRESULTSuccess, (expr))
# define EXPECT_HRESULT_FAILED(expr) \
EXPECT_PRED_FORMAT1(::testing::internal::IsHRESULTFailure, (expr))
# define ASSERT_HRESULT_FAILED(expr) \
ASSERT_PRED_FORMAT1(::testing::internal::IsHRESULTFailure, (expr))
#endif // GTEST_OS_WINDOWS
// Macros that execute statement and check that it doesn't generate new fatal
// failures in the current thread.
//
// * {ASSERT|EXPECT}_NO_FATAL_FAILURE(statement);
//
// Examples:
//
// EXPECT_NO_FATAL_FAILURE(Process());
// ASSERT_NO_FATAL_FAILURE(Process()) << "Process() failed";
//
#define ASSERT_NO_FATAL_FAILURE(statement) \
GTEST_TEST_NO_FATAL_FAILURE_(statement, GTEST_FATAL_FAILURE_)
#define EXPECT_NO_FATAL_FAILURE(statement) \
GTEST_TEST_NO_FATAL_FAILURE_(statement, GTEST_NONFATAL_FAILURE_)
// Causes a trace (including the source file path, the current line
// number, and the given message) to be included in every test failure
// message generated by code in the current scope. The effect is
// undone when the control leaves the current scope.
//
// The message argument can be anything streamable to std::ostream.
//
// In the implementation, we include the current line number as part
// of the dummy variable name, thus allowing multiple SCOPED_TRACE()s
// to appear in the same block - as long as they are on different
// lines.
#define SCOPED_TRACE(message) \
::testing::internal::ScopedTrace GTEST_CONCAT_TOKEN_(gtest_trace_, __LINE__)(\
__FILE__, __LINE__, ::testing::Message() << (message))
// Compile-time assertion for type equality.
// StaticAssertTypeEq<type1, type2>() compiles iff type1 and type2 are
// the same type. The value it returns is not interesting.
//
// Instead of making StaticAssertTypeEq a class template, we make it a
// function template that invokes a helper class template. This
// prevents a user from misusing StaticAssertTypeEq<T1, T2> by
// defining objects of that type.
//
// CAVEAT:
//
// When used inside a method of a class template,
// StaticAssertTypeEq<T1, T2>() is effective ONLY IF the method is
// instantiated. For example, given:
//
// template <typename T> class Foo {
// public:
// void Bar() { testing::StaticAssertTypeEq<int, T>(); }
// };
//
// the code:
//
// void Test1() { Foo<bool> foo; }
//
// will NOT generate a compiler error, as Foo<bool>::Bar() is never
// actually instantiated. Instead, you need:
//
// void Test2() { Foo<bool> foo; foo.Bar(); }
//
// to cause a compiler error.
template <typename T1, typename T2>
bool StaticAssertTypeEq() {
(void)internal::StaticAssertTypeEqHelper<T1, T2>();
return true;
}
// Defines a test.
//
// The first parameter is the name of the test case, and the second
// parameter is the name of the test within the test case.
//
// The convention is to end the test case name with "Test". For
// example, a test case for the Foo class can be named FooTest.
//
// The user should put his test code between braces after using this
// macro. Example:
//
// TEST(FooTest, InitializesCorrectly) {
// Foo foo;
// EXPECT_TRUE(foo.StatusIsOK());
// }
// Note that we call GetTestTypeId() instead of GetTypeId<
// ::testing::Test>() here to get the type ID of testing::Test. This
// is to work around a suspected linker bug when using Google Test as
// a framework on Mac OS X. The bug causes GetTypeId<
// ::testing::Test>() to return different values depending on whether
// the call is from the Google Test framework itself or from user test
// code. GetTestTypeId() is guaranteed to always return the same
// value, as it always calls GetTypeId<>() from the Google Test
// framework.
#define GTEST_TEST(test_case_name, test_name)\
GTEST_TEST_(test_case_name, test_name, \
::testing::Test, ::testing::internal::GetTestTypeId())
// Define this macro to 1 to omit the definition of TEST(), which
// is a generic name and clashes with some other libraries.
#if !GTEST_DONT_DEFINE_TEST
# define TEST(test_case_name, test_name) GTEST_TEST(test_case_name, test_name)
#endif
// Defines a test that uses a test fixture.
//
// The first parameter is the name of the test fixture class, which
// also doubles as the test case name. The second parameter is the
// name of the test within the test case.
//
// A test fixture class must be declared earlier. The user should put
// his test code between braces after using this macro. Example:
//
// class FooTest : public testing::Test {
// protected:
// virtual void SetUp() { b_.AddElement(3); }
//
// Foo a_;
// Foo b_;
// };
//
// TEST_F(FooTest, InitializesCorrectly) {
// EXPECT_TRUE(a_.StatusIsOK());
// }
//
// TEST_F(FooTest, ReturnsElementCountCorrectly) {
// EXPECT_EQ(0, a_.size());
// EXPECT_EQ(1, b_.size());
// }
#define TEST_F(test_fixture, test_name)\
GTEST_TEST_(test_fixture, test_name, test_fixture, \
::testing::internal::GetTypeId<test_fixture>())
} // namespace testing
// Use this function in main() to run all tests. It returns 0 if all
// tests are successful, or 1 otherwise.
//
// RUN_ALL_TESTS() should be invoked after the command line has been
// parsed by InitGoogleTest().
//
// This function was formerly a macro; thus, it is in the global
// namespace and has an all-caps name.
int RUN_ALL_TESTS() GTEST_MUST_USE_RESULT_;
inline int RUN_ALL_TESTS() {
return ::testing::UnitTest::GetInstance()->Run();
}
#endif // GTEST_INCLUDE_GTEST_GTEST_H_
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