From 58cae243738c77acf9b3722804ee96a0f68d7b9a Mon Sep 17 00:00:00 2001 From: Antony Woods Date: Tue, 29 Oct 2013 08:36:33 +0000 Subject: Fixed a compiler error with std::chrono::duration --- gtest-1.6.0/test/gtest-param-test_test.cc | 1790 ++++++++++++++--------------- 1 file changed, 895 insertions(+), 895 deletions(-) (limited to 'gtest-1.6.0/test/gtest-param-test_test.cc') diff --git a/gtest-1.6.0/test/gtest-param-test_test.cc b/gtest-1.6.0/test/gtest-param-test_test.cc index 94a53d9..7b93a2a 100644 --- a/gtest-1.6.0/test/gtest-param-test_test.cc +++ b/gtest-1.6.0/test/gtest-param-test_test.cc @@ -1,895 +1,895 @@ -// Copyright 2008, Google Inc. -// All rights reserved. -// -// Redistribution and use in source and binary forms, with or without -// modification, are permitted provided that the following conditions are -// met: -// -// * Redistributions of source code must retain the above copyright -// notice, this list of conditions and the following disclaimer. -// * Redistributions in binary form must reproduce the above -// copyright notice, this list of conditions and the following disclaimer -// in the documentation and/or other materials provided with the -// distribution. -// * Neither the name of Google Inc. nor the names of its -// contributors may be used to endorse or promote products derived from -// this software without specific prior written permission. -// -// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -// -// Author: vladl@google.com (Vlad Losev) -// -// Tests for Google Test itself. This file verifies that the parameter -// generators objects produce correct parameter sequences and that -// Google Test runtime instantiates correct tests from those sequences. - -#include "gtest/gtest.h" - -#if GTEST_HAS_PARAM_TEST - -# include -# include -# include -# include -# include -# include - -// To include gtest-internal-inl.h. -# define GTEST_IMPLEMENTATION_ 1 -# include "src/gtest-internal-inl.h" // for UnitTestOptions -# undef GTEST_IMPLEMENTATION_ - -# include "test/gtest-param-test_test.h" - -using ::std::vector; -using ::std::sort; - -using ::testing::AddGlobalTestEnvironment; -using ::testing::Bool; -using ::testing::Message; -using ::testing::Range; -using ::testing::TestWithParam; -using ::testing::Values; -using ::testing::ValuesIn; - -# if GTEST_HAS_COMBINE -using ::testing::Combine; -using ::std::tr1::get; -using ::std::tr1::make_tuple; -using ::std::tr1::tuple; -# endif // GTEST_HAS_COMBINE - -using ::testing::internal::ParamGenerator; -using ::testing::internal::UnitTestOptions; - -// Prints a value to a string. -// -// TODO(wan@google.com): remove PrintValue() when we move matchers and -// EXPECT_THAT() from Google Mock to Google Test. At that time, we -// can write EXPECT_THAT(x, Eq(y)) to compare two tuples x and y, as -// EXPECT_THAT() and the matchers know how to print tuples. -template -::std::string PrintValue(const T& value) { - ::std::stringstream stream; - stream << value; - return stream.str(); -} - -# if GTEST_HAS_COMBINE - -// These overloads allow printing tuples in our tests. We cannot -// define an operator<< for tuples, as that definition needs to be in -// the std namespace in order to be picked up by Google Test via -// Argument-Dependent Lookup, yet defining anything in the std -// namespace in non-STL code is undefined behavior. - -template -::std::string PrintValue(const tuple& value) { - ::std::stringstream stream; - stream << "(" << get<0>(value) << ", " << get<1>(value) << ")"; - return stream.str(); -} - -template -::std::string PrintValue(const tuple& value) { - ::std::stringstream stream; - stream << "(" << get<0>(value) << ", " << get<1>(value) - << ", "<< get<2>(value) << ")"; - return stream.str(); -} - -template -::std::string PrintValue( - const tuple& value) { - ::std::stringstream stream; - stream << "(" << get<0>(value) << ", " << get<1>(value) - << ", "<< get<2>(value) << ", " << get<3>(value) - << ", "<< get<4>(value) << ", " << get<5>(value) - << ", "<< get<6>(value) << ", " << get<7>(value) - << ", "<< get<8>(value) << ", " << get<9>(value) << ")"; - return stream.str(); -} - -# endif // GTEST_HAS_COMBINE - -// Verifies that a sequence generated by the generator and accessed -// via the iterator object matches the expected one using Google Test -// assertions. -template -void VerifyGenerator(const ParamGenerator& generator, - const T (&expected_values)[N]) { - typename ParamGenerator::iterator it = generator.begin(); - for (size_t i = 0; i < N; ++i) { - ASSERT_FALSE(it == generator.end()) - << "At element " << i << " when accessing via an iterator " - << "created with the copy constructor.\n"; - // We cannot use EXPECT_EQ() here as the values may be tuples, - // which don't support <<. - EXPECT_TRUE(expected_values[i] == *it) - << "where i is " << i - << ", expected_values[i] is " << PrintValue(expected_values[i]) - << ", *it is " << PrintValue(*it) - << ", and 'it' is an iterator created with the copy constructor.\n"; - it++; - } - EXPECT_TRUE(it == generator.end()) - << "At the presumed end of sequence when accessing via an iterator " - << "created with the copy constructor.\n"; - - // Test the iterator assignment. The following lines verify that - // the sequence accessed via an iterator initialized via the - // assignment operator (as opposed to a copy constructor) matches - // just the same. - it = generator.begin(); - for (size_t i = 0; i < N; ++i) { - ASSERT_FALSE(it == generator.end()) - << "At element " << i << " when accessing via an iterator " - << "created with the assignment operator.\n"; - EXPECT_TRUE(expected_values[i] == *it) - << "where i is " << i - << ", expected_values[i] is " << PrintValue(expected_values[i]) - << ", *it is " << PrintValue(*it) - << ", and 'it' is an iterator created with the copy constructor.\n"; - it++; - } - EXPECT_TRUE(it == generator.end()) - << "At the presumed end of sequence when accessing via an iterator " - << "created with the assignment operator.\n"; -} - -template -void VerifyGeneratorIsEmpty(const ParamGenerator& generator) { - typename ParamGenerator::iterator it = generator.begin(); - EXPECT_TRUE(it == generator.end()); - - it = generator.begin(); - EXPECT_TRUE(it == generator.end()); -} - -// Generator tests. They test that each of the provided generator functions -// generates an expected sequence of values. The general test pattern -// instantiates a generator using one of the generator functions, -// checks the sequence produced by the generator using its iterator API, -// and then resets the iterator back to the beginning of the sequence -// and checks the sequence again. - -// Tests that iterators produced by generator functions conform to the -// ForwardIterator concept. -TEST(IteratorTest, ParamIteratorConformsToForwardIteratorConcept) { - const ParamGenerator gen = Range(0, 10); - ParamGenerator::iterator it = gen.begin(); - - // Verifies that iterator initialization works as expected. - ParamGenerator::iterator it2 = it; - EXPECT_TRUE(*it == *it2) << "Initialized iterators must point to the " - << "element same as its source points to"; - - // Verifies that iterator assignment works as expected. - it++; - EXPECT_FALSE(*it == *it2); - it2 = it; - EXPECT_TRUE(*it == *it2) << "Assigned iterators must point to the " - << "element same as its source points to"; - - // Verifies that prefix operator++() returns *this. - EXPECT_EQ(&it, &(++it)) << "Result of the prefix operator++ must be " - << "refer to the original object"; - - // Verifies that the result of the postfix operator++ points to the value - // pointed to by the original iterator. - int original_value = *it; // Have to compute it outside of macro call to be - // unaffected by the parameter evaluation order. - EXPECT_EQ(original_value, *(it++)); - - // Verifies that prefix and postfix operator++() advance an iterator - // all the same. - it2 = it; - it++; - ++it2; - EXPECT_TRUE(*it == *it2); -} - -// Tests that Range() generates the expected sequence. -TEST(RangeTest, IntRangeWithDefaultStep) { - const ParamGenerator gen = Range(0, 3); - const int expected_values[] = {0, 1, 2}; - VerifyGenerator(gen, expected_values); -} - -// Edge case. Tests that Range() generates the single element sequence -// as expected when provided with range limits that are equal. -TEST(RangeTest, IntRangeSingleValue) { - const ParamGenerator gen = Range(0, 1); - const int expected_values[] = {0}; - VerifyGenerator(gen, expected_values); -} - -// Edge case. Tests that Range() with generates empty sequence when -// supplied with an empty range. -TEST(RangeTest, IntRangeEmpty) { - const ParamGenerator gen = Range(0, 0); - VerifyGeneratorIsEmpty(gen); -} - -// Tests that Range() with custom step (greater then one) generates -// the expected sequence. -TEST(RangeTest, IntRangeWithCustomStep) { - const ParamGenerator gen = Range(0, 9, 3); - const int expected_values[] = {0, 3, 6}; - VerifyGenerator(gen, expected_values); -} - -// Tests that Range() with custom step (greater then one) generates -// the expected sequence when the last element does not fall on the -// upper range limit. Sequences generated by Range() must not have -// elements beyond the range limits. -TEST(RangeTest, IntRangeWithCustomStepOverUpperBound) { - const ParamGenerator gen = Range(0, 4, 3); - const int expected_values[] = {0, 3}; - VerifyGenerator(gen, expected_values); -} - -// Verifies that Range works with user-defined types that define -// copy constructor, operator=(), operator+(), and operator<(). -class DogAdder { - public: - explicit DogAdder(const char* a_value) : value_(a_value) {} - DogAdder(const DogAdder& other) : value_(other.value_.c_str()) {} - - DogAdder operator=(const DogAdder& other) { - if (this != &other) - value_ = other.value_; - return *this; - } - DogAdder operator+(const DogAdder& other) const { - Message msg; - msg << value_.c_str() << other.value_.c_str(); - return DogAdder(msg.GetString().c_str()); - } - bool operator<(const DogAdder& other) const { - return value_ < other.value_; - } - const ::testing::internal::String& value() const { return value_; } - - private: - ::testing::internal::String value_; -}; - -TEST(RangeTest, WorksWithACustomType) { - const ParamGenerator gen = - Range(DogAdder("cat"), DogAdder("catdogdog"), DogAdder("dog")); - ParamGenerator::iterator it = gen.begin(); - - ASSERT_FALSE(it == gen.end()); - EXPECT_STREQ("cat", it->value().c_str()); - - ASSERT_FALSE(++it == gen.end()); - EXPECT_STREQ("catdog", it->value().c_str()); - - EXPECT_TRUE(++it == gen.end()); -} - -class IntWrapper { - public: - explicit IntWrapper(int a_value) : value_(a_value) {} - IntWrapper(const IntWrapper& other) : value_(other.value_) {} - - IntWrapper operator=(const IntWrapper& other) { - value_ = other.value_; - return *this; - } - // operator+() adds a different type. - IntWrapper operator+(int other) const { return IntWrapper(value_ + other); } - bool operator<(const IntWrapper& other) const { - return value_ < other.value_; - } - int value() const { return value_; } - - private: - int value_; -}; - -TEST(RangeTest, WorksWithACustomTypeWithDifferentIncrementType) { - const ParamGenerator gen = Range(IntWrapper(0), IntWrapper(2)); - ParamGenerator::iterator it = gen.begin(); - - ASSERT_FALSE(it == gen.end()); - EXPECT_EQ(0, it->value()); - - ASSERT_FALSE(++it == gen.end()); - EXPECT_EQ(1, it->value()); - - EXPECT_TRUE(++it == gen.end()); -} - -// Tests that ValuesIn() with an array parameter generates -// the expected sequence. -TEST(ValuesInTest, ValuesInArray) { - int array[] = {3, 5, 8}; - const ParamGenerator gen = ValuesIn(array); - VerifyGenerator(gen, array); -} - -// Tests that ValuesIn() with a const array parameter generates -// the expected sequence. -TEST(ValuesInTest, ValuesInConstArray) { - const int array[] = {3, 5, 8}; - const ParamGenerator gen = ValuesIn(array); - VerifyGenerator(gen, array); -} - -// Edge case. Tests that ValuesIn() with an array parameter containing a -// single element generates the single element sequence. -TEST(ValuesInTest, ValuesInSingleElementArray) { - int array[] = {42}; - const ParamGenerator gen = ValuesIn(array); - VerifyGenerator(gen, array); -} - -// Tests that ValuesIn() generates the expected sequence for an STL -// container (vector). -TEST(ValuesInTest, ValuesInVector) { - typedef ::std::vector ContainerType; - ContainerType values; - values.push_back(3); - values.push_back(5); - values.push_back(8); - const ParamGenerator gen = ValuesIn(values); - - const int expected_values[] = {3, 5, 8}; - VerifyGenerator(gen, expected_values); -} - -// Tests that ValuesIn() generates the expected sequence. -TEST(ValuesInTest, ValuesInIteratorRange) { - typedef ::std::vector ContainerType; - ContainerType values; - values.push_back(3); - values.push_back(5); - values.push_back(8); - const ParamGenerator gen = ValuesIn(values.begin(), values.end()); - - const int expected_values[] = {3, 5, 8}; - VerifyGenerator(gen, expected_values); -} - -// Edge case. Tests that ValuesIn() provided with an iterator range specifying a -// single value generates a single-element sequence. -TEST(ValuesInTest, ValuesInSingleElementIteratorRange) { - typedef ::std::vector ContainerType; - ContainerType values; - values.push_back(42); - const ParamGenerator gen = ValuesIn(values.begin(), values.end()); - - const int expected_values[] = {42}; - VerifyGenerator(gen, expected_values); -} - -// Edge case. Tests that ValuesIn() provided with an empty iterator range -// generates an empty sequence. -TEST(ValuesInTest, ValuesInEmptyIteratorRange) { - typedef ::std::vector ContainerType; - ContainerType values; - const ParamGenerator gen = ValuesIn(values.begin(), values.end()); - - VerifyGeneratorIsEmpty(gen); -} - -// Tests that the Values() generates the expected sequence. -TEST(ValuesTest, ValuesWorks) { - const ParamGenerator gen = Values(3, 5, 8); - - const int expected_values[] = {3, 5, 8}; - VerifyGenerator(gen, expected_values); -} - -// Tests that Values() generates the expected sequences from elements of -// different types convertible to ParamGenerator's parameter type. -TEST(ValuesTest, ValuesWorksForValuesOfCompatibleTypes) { - const ParamGenerator gen = Values(3, 5.0f, 8.0); - - const double expected_values[] = {3.0, 5.0, 8.0}; - VerifyGenerator(gen, expected_values); -} - -TEST(ValuesTest, ValuesWorksForMaxLengthList) { - const ParamGenerator gen = Values( - 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, - 110, 120, 130, 140, 150, 160, 170, 180, 190, 200, - 210, 220, 230, 240, 250, 260, 270, 280, 290, 300, - 310, 320, 330, 340, 350, 360, 370, 380, 390, 400, - 410, 420, 430, 440, 450, 460, 470, 480, 490, 500); - - const int expected_values[] = { - 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, - 110, 120, 130, 140, 150, 160, 170, 180, 190, 200, - 210, 220, 230, 240, 250, 260, 270, 280, 290, 300, - 310, 320, 330, 340, 350, 360, 370, 380, 390, 400, - 410, 420, 430, 440, 450, 460, 470, 480, 490, 500}; - VerifyGenerator(gen, expected_values); -} - -// Edge case test. Tests that single-parameter Values() generates the sequence -// with the single value. -TEST(ValuesTest, ValuesWithSingleParameter) { - const ParamGenerator gen = Values(42); - - const int expected_values[] = {42}; - VerifyGenerator(gen, expected_values); -} - -// Tests that Bool() generates sequence (false, true). -TEST(BoolTest, BoolWorks) { - const ParamGenerator gen = Bool(); - - const bool expected_values[] = {false, true}; - VerifyGenerator(gen, expected_values); -} - -# if GTEST_HAS_COMBINE - -// Tests that Combine() with two parameters generates the expected sequence. -TEST(CombineTest, CombineWithTwoParameters) { - const char* foo = "foo"; - const char* bar = "bar"; - const ParamGenerator > gen = - Combine(Values(foo, bar), Values(3, 4)); - - tuple expected_values[] = { - make_tuple(foo, 3), make_tuple(foo, 4), - make_tuple(bar, 3), make_tuple(bar, 4)}; - VerifyGenerator(gen, expected_values); -} - -// Tests that Combine() with three parameters generates the expected sequence. -TEST(CombineTest, CombineWithThreeParameters) { - const ParamGenerator > gen = Combine(Values(0, 1), - Values(3, 4), - Values(5, 6)); - tuple expected_values[] = { - make_tuple(0, 3, 5), make_tuple(0, 3, 6), - make_tuple(0, 4, 5), make_tuple(0, 4, 6), - make_tuple(1, 3, 5), make_tuple(1, 3, 6), - make_tuple(1, 4, 5), make_tuple(1, 4, 6)}; - VerifyGenerator(gen, expected_values); -} - -// Tests that the Combine() with the first parameter generating a single value -// sequence generates a sequence with the number of elements equal to the -// number of elements in the sequence generated by the second parameter. -TEST(CombineTest, CombineWithFirstParameterSingleValue) { - const ParamGenerator > gen = Combine(Values(42), - Values(0, 1)); - - tuple expected_values[] = {make_tuple(42, 0), make_tuple(42, 1)}; - VerifyGenerator(gen, expected_values); -} - -// Tests that the Combine() with the second parameter generating a single value -// sequence generates a sequence with the number of elements equal to the -// number of elements in the sequence generated by the first parameter. -TEST(CombineTest, CombineWithSecondParameterSingleValue) { - const ParamGenerator > gen = Combine(Values(0, 1), - Values(42)); - - tuple expected_values[] = {make_tuple(0, 42), make_tuple(1, 42)}; - VerifyGenerator(gen, expected_values); -} - -// Tests that when the first parameter produces an empty sequence, -// Combine() produces an empty sequence, too. -TEST(CombineTest, CombineWithFirstParameterEmptyRange) { - const ParamGenerator > gen = Combine(Range(0, 0), - Values(0, 1)); - VerifyGeneratorIsEmpty(gen); -} - -// Tests that when the second parameter produces an empty sequence, -// Combine() produces an empty sequence, too. -TEST(CombineTest, CombineWithSecondParameterEmptyRange) { - const ParamGenerator > gen = Combine(Values(0, 1), - Range(1, 1)); - VerifyGeneratorIsEmpty(gen); -} - -// Edge case. Tests that combine works with the maximum number -// of parameters supported by Google Test (currently 10). -TEST(CombineTest, CombineWithMaxNumberOfParameters) { - const char* foo = "foo"; - const char* bar = "bar"; - const ParamGenerator > gen = Combine(Values(foo, bar), - Values(1), Values(2), - Values(3), Values(4), - Values(5), Values(6), - Values(7), Values(8), - Values(9)); - - tuple - expected_values[] = {make_tuple(foo, 1, 2, 3, 4, 5, 6, 7, 8, 9), - make_tuple(bar, 1, 2, 3, 4, 5, 6, 7, 8, 9)}; - VerifyGenerator(gen, expected_values); -} - -# endif // GTEST_HAS_COMBINE - -// Tests that an generator produces correct sequence after being -// assigned from another generator. -TEST(ParamGeneratorTest, AssignmentWorks) { - ParamGenerator gen = Values(1, 2); - const ParamGenerator gen2 = Values(3, 4); - gen = gen2; - - const int expected_values[] = {3, 4}; - VerifyGenerator(gen, expected_values); -} - -// This test verifies that the tests are expanded and run as specified: -// one test per element from the sequence produced by the generator -// specified in INSTANTIATE_TEST_CASE_P. It also verifies that the test's -// fixture constructor, SetUp(), and TearDown() have run and have been -// supplied with the correct parameters. - -// The use of environment object allows detection of the case where no test -// case functionality is run at all. In this case TestCaseTearDown will not -// be able to detect missing tests, naturally. -template -class TestGenerationEnvironment : public ::testing::Environment { - public: - static TestGenerationEnvironment* Instance() { - static TestGenerationEnvironment* instance = new TestGenerationEnvironment; - return instance; - } - - void FixtureConstructorExecuted() { fixture_constructor_count_++; } - void SetUpExecuted() { set_up_count_++; } - void TearDownExecuted() { tear_down_count_++; } - void TestBodyExecuted() { test_body_count_++; } - - virtual void TearDown() { - // If all MultipleTestGenerationTest tests have been de-selected - // by the filter flag, the following checks make no sense. - bool perform_check = false; - - for (int i = 0; i < kExpectedCalls; ++i) { - Message msg; - msg << "TestsExpandedAndRun/" << i; - if (UnitTestOptions::FilterMatchesTest( - "TestExpansionModule/MultipleTestGenerationTest", - msg.GetString().c_str())) { - perform_check = true; - } - } - if (perform_check) { - EXPECT_EQ(kExpectedCalls, fixture_constructor_count_) - << "Fixture constructor of ParamTestGenerationTest test case " - << "has not been run as expected."; - EXPECT_EQ(kExpectedCalls, set_up_count_) - << "Fixture SetUp method of ParamTestGenerationTest test case " - << "has not been run as expected."; - EXPECT_EQ(kExpectedCalls, tear_down_count_) - << "Fixture TearDown method of ParamTestGenerationTest test case " - << "has not been run as expected."; - EXPECT_EQ(kExpectedCalls, test_body_count_) - << "Test in ParamTestGenerationTest test case " - << "has not been run as expected."; - } - } - private: - TestGenerationEnvironment() : fixture_constructor_count_(0), set_up_count_(0), - tear_down_count_(0), test_body_count_(0) {} - - int fixture_constructor_count_; - int set_up_count_; - int tear_down_count_; - int test_body_count_; - - GTEST_DISALLOW_COPY_AND_ASSIGN_(TestGenerationEnvironment); -}; - -const int test_generation_params[] = {36, 42, 72}; - -class TestGenerationTest : public TestWithParam { - public: - enum { - PARAMETER_COUNT = - sizeof(test_generation_params)/sizeof(test_generation_params[0]) - }; - - typedef TestGenerationEnvironment Environment; - - TestGenerationTest() { - Environment::Instance()->FixtureConstructorExecuted(); - current_parameter_ = GetParam(); - } - virtual void SetUp() { - Environment::Instance()->SetUpExecuted(); - EXPECT_EQ(current_parameter_, GetParam()); - } - virtual void TearDown() { - Environment::Instance()->TearDownExecuted(); - EXPECT_EQ(current_parameter_, GetParam()); - } - - static void SetUpTestCase() { - bool all_tests_in_test_case_selected = true; - - for (int i = 0; i < PARAMETER_COUNT; ++i) { - Message test_name; - test_name << "TestsExpandedAndRun/" << i; - if ( !UnitTestOptions::FilterMatchesTest( - "TestExpansionModule/MultipleTestGenerationTest", - test_name.GetString())) { - all_tests_in_test_case_selected = false; - } - } - EXPECT_TRUE(all_tests_in_test_case_selected) - << "When running the TestGenerationTest test case all of its tests\n" - << "must be selected by the filter flag for the test case to pass.\n" - << "If not all of them are enabled, we can't reliably conclude\n" - << "that the correct number of tests have been generated."; - - collected_parameters_.clear(); - } - - static void TearDownTestCase() { - vector expected_values(test_generation_params, - test_generation_params + PARAMETER_COUNT); - // Test execution order is not guaranteed by Google Test, - // so the order of values in collected_parameters_ can be - // different and we have to sort to compare. - sort(expected_values.begin(), expected_values.end()); - sort(collected_parameters_.begin(), collected_parameters_.end()); - - EXPECT_TRUE(collected_parameters_ == expected_values); - } - protected: - int current_parameter_; - static vector collected_parameters_; - - private: - GTEST_DISALLOW_COPY_AND_ASSIGN_(TestGenerationTest); -}; -vector TestGenerationTest::collected_parameters_; - -TEST_P(TestGenerationTest, TestsExpandedAndRun) { - Environment::Instance()->TestBodyExecuted(); - EXPECT_EQ(current_parameter_, GetParam()); - collected_parameters_.push_back(GetParam()); -} -INSTANTIATE_TEST_CASE_P(TestExpansionModule, TestGenerationTest, - ValuesIn(test_generation_params)); - -// This test verifies that the element sequence (third parameter of -// INSTANTIATE_TEST_CASE_P) is evaluated in InitGoogleTest() and neither at -// the call site of INSTANTIATE_TEST_CASE_P nor in RUN_ALL_TESTS(). For -// that, we declare param_value_ to be a static member of -// GeneratorEvaluationTest and initialize it to 0. We set it to 1 in -// main(), just before invocation of InitGoogleTest(). After calling -// InitGoogleTest(), we set the value to 2. If the sequence is evaluated -// before or after InitGoogleTest, INSTANTIATE_TEST_CASE_P will create a -// test with parameter other than 1, and the test body will fail the -// assertion. -class GeneratorEvaluationTest : public TestWithParam { - public: - static int param_value() { return param_value_; } - static void set_param_value(int param_value) { param_value_ = param_value; } - - private: - static int param_value_; -}; -int GeneratorEvaluationTest::param_value_ = 0; - -TEST_P(GeneratorEvaluationTest, GeneratorsEvaluatedInMain) { - EXPECT_EQ(1, GetParam()); -} -INSTANTIATE_TEST_CASE_P(GenEvalModule, - GeneratorEvaluationTest, - Values(GeneratorEvaluationTest::param_value())); - -// Tests that generators defined in a different translation unit are -// functional. Generator extern_gen is defined in gtest-param-test_test2.cc. -extern ParamGenerator extern_gen; -class ExternalGeneratorTest : public TestWithParam {}; -TEST_P(ExternalGeneratorTest, ExternalGenerator) { - // Sequence produced by extern_gen contains only a single value - // which we verify here. - EXPECT_EQ(GetParam(), 33); -} -INSTANTIATE_TEST_CASE_P(ExternalGeneratorModule, - ExternalGeneratorTest, - extern_gen); - -// Tests that a parameterized test case can be defined in one translation -// unit and instantiated in another. This test will be instantiated in -// gtest-param-test_test2.cc. ExternalInstantiationTest fixture class is -// defined in gtest-param-test_test.h. -TEST_P(ExternalInstantiationTest, IsMultipleOf33) { - EXPECT_EQ(0, GetParam() % 33); -} - -// Tests that a parameterized test case can be instantiated with multiple -// generators. -class MultipleInstantiationTest : public TestWithParam {}; -TEST_P(MultipleInstantiationTest, AllowsMultipleInstances) { -} -INSTANTIATE_TEST_CASE_P(Sequence1, MultipleInstantiationTest, Values(1, 2)); -INSTANTIATE_TEST_CASE_P(Sequence2, MultipleInstantiationTest, Range(3, 5)); - -// Tests that a parameterized test case can be instantiated -// in multiple translation units. This test will be instantiated -// here and in gtest-param-test_test2.cc. -// InstantiationInMultipleTranslationUnitsTest fixture class -// is defined in gtest-param-test_test.h. -TEST_P(InstantiationInMultipleTranslaionUnitsTest, IsMultipleOf42) { - EXPECT_EQ(0, GetParam() % 42); -} -INSTANTIATE_TEST_CASE_P(Sequence1, - InstantiationInMultipleTranslaionUnitsTest, - Values(42, 42*2)); - -// Tests that each iteration of parameterized test runs in a separate test -// object. -class SeparateInstanceTest : public TestWithParam { - public: - SeparateInstanceTest() : count_(0) {} - - static void TearDownTestCase() { - EXPECT_GE(global_count_, 2) - << "If some (but not all) SeparateInstanceTest tests have been " - << "filtered out this test will fail. Make sure that all " - << "GeneratorEvaluationTest are selected or de-selected together " - << "by the test filter."; - } - - protected: - int count_; - static int global_count_; -}; -int SeparateInstanceTest::global_count_ = 0; - -TEST_P(SeparateInstanceTest, TestsRunInSeparateInstances) { - EXPECT_EQ(0, count_++); - global_count_++; -} -INSTANTIATE_TEST_CASE_P(FourElemSequence, SeparateInstanceTest, Range(1, 4)); - -// Tests that all instantiations of a test have named appropriately. Test -// defined with TEST_P(TestCaseName, TestName) and instantiated with -// INSTANTIATE_TEST_CASE_P(SequenceName, TestCaseName, generator) must be named -// SequenceName/TestCaseName.TestName/i, where i is the 0-based index of the -// sequence element used to instantiate the test. -class NamingTest : public TestWithParam {}; - -TEST_P(NamingTest, TestsReportCorrectNamesAndParameters) { - const ::testing::TestInfo* const test_info = - ::testing::UnitTest::GetInstance()->current_test_info(); - - EXPECT_STREQ("ZeroToFiveSequence/NamingTest", test_info->test_case_name()); - - Message index_stream; - index_stream << "TestsReportCorrectNamesAndParameters/" << GetParam(); - EXPECT_STREQ(index_stream.GetString().c_str(), test_info->name()); - - EXPECT_EQ(::testing::PrintToString(GetParam()), test_info->value_param()); -} - -INSTANTIATE_TEST_CASE_P(ZeroToFiveSequence, NamingTest, Range(0, 5)); - -// Class that cannot be streamed into an ostream. It needs to be copyable -// (and, in case of MSVC, also assignable) in order to be a test parameter -// type. Its default copy constructor and assignment operator do exactly -// what we need. -class Unstreamable { - public: - explicit Unstreamable(int value) : value_(value) {} - - private: - int value_; -}; - -class CommentTest : public TestWithParam {}; - -TEST_P(CommentTest, TestsCorrectlyReportUnstreamableParams) { - const ::testing::TestInfo* const test_info = - ::testing::UnitTest::GetInstance()->current_test_info(); - - EXPECT_EQ(::testing::PrintToString(GetParam()), test_info->value_param()); -} - -INSTANTIATE_TEST_CASE_P(InstantiationWithComments, - CommentTest, - Values(Unstreamable(1))); - -// Verify that we can create a hierarchy of test fixtures, where the base -// class fixture is not parameterized and the derived class is. In this case -// ParameterizedDerivedTest inherits from NonParameterizedBaseTest. We -// perform simple tests on both. -class NonParameterizedBaseTest : public ::testing::Test { - public: - NonParameterizedBaseTest() : n_(17) { } - protected: - int n_; -}; - -class ParameterizedDerivedTest : public NonParameterizedBaseTest, - public ::testing::WithParamInterface { - protected: - ParameterizedDerivedTest() : count_(0) { } - int count_; - static int global_count_; -}; - -int ParameterizedDerivedTest::global_count_ = 0; - -TEST_F(NonParameterizedBaseTest, FixtureIsInitialized) { - EXPECT_EQ(17, n_); -} - -TEST_P(ParameterizedDerivedTest, SeesSequence) { - EXPECT_EQ(17, n_); - EXPECT_EQ(0, count_++); - EXPECT_EQ(GetParam(), global_count_++); -} - -INSTANTIATE_TEST_CASE_P(RangeZeroToFive, ParameterizedDerivedTest, Range(0, 5)); - -#endif // GTEST_HAS_PARAM_TEST - -TEST(CompileTest, CombineIsDefinedOnlyWhenGtestHasParamTestIsDefined) { -#if GTEST_HAS_COMBINE && !GTEST_HAS_PARAM_TEST - FAIL() << "GTEST_HAS_COMBINE is defined while GTEST_HAS_PARAM_TEST is not\n" -#endif -} - -int main(int argc, char **argv) { -#if GTEST_HAS_PARAM_TEST - // Used in TestGenerationTest test case. - AddGlobalTestEnvironment(TestGenerationTest::Environment::Instance()); - // Used in GeneratorEvaluationTest test case. Tests that the updated value - // will be picked up for instantiating tests in GeneratorEvaluationTest. - GeneratorEvaluationTest::set_param_value(1); -#endif // GTEST_HAS_PARAM_TEST - - ::testing::InitGoogleTest(&argc, argv); - -#if GTEST_HAS_PARAM_TEST - // Used in GeneratorEvaluationTest test case. Tests that value updated - // here will NOT be used for instantiating tests in - // GeneratorEvaluationTest. - GeneratorEvaluationTest::set_param_value(2); -#endif // GTEST_HAS_PARAM_TEST - - return RUN_ALL_TESTS(); -} +// Copyright 2008, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +// +// Author: vladl@google.com (Vlad Losev) +// +// Tests for Google Test itself. This file verifies that the parameter +// generators objects produce correct parameter sequences and that +// Google Test runtime instantiates correct tests from those sequences. + +#include "gtest/gtest.h" + +#if GTEST_HAS_PARAM_TEST + +# include +# include +# include +# include +# include +# include + +// To include gtest-internal-inl.h. +# define GTEST_IMPLEMENTATION_ 1 +# include "src/gtest-internal-inl.h" // for UnitTestOptions +# undef GTEST_IMPLEMENTATION_ + +# include "test/gtest-param-test_test.h" + +using ::std::vector; +using ::std::sort; + +using ::testing::AddGlobalTestEnvironment; +using ::testing::Bool; +using ::testing::Message; +using ::testing::Range; +using ::testing::TestWithParam; +using ::testing::Values; +using ::testing::ValuesIn; + +# if GTEST_HAS_COMBINE +using ::testing::Combine; +using ::std::tr1::get; +using ::std::tr1::make_tuple; +using ::std::tr1::tuple; +# endif // GTEST_HAS_COMBINE + +using ::testing::internal::ParamGenerator; +using ::testing::internal::UnitTestOptions; + +// Prints a value to a string. +// +// TODO(wan@google.com): remove PrintValue() when we move matchers and +// EXPECT_THAT() from Google Mock to Google Test. At that time, we +// can write EXPECT_THAT(x, Eq(y)) to compare two tuples x and y, as +// EXPECT_THAT() and the matchers know how to print tuples. +template +::std::string PrintValue(const T& value) { + ::std::stringstream stream; + stream << value; + return stream.str(); +} + +# if GTEST_HAS_COMBINE + +// These overloads allow printing tuples in our tests. We cannot +// define an operator<< for tuples, as that definition needs to be in +// the std namespace in order to be picked up by Google Test via +// Argument-Dependent Lookup, yet defining anything in the std +// namespace in non-STL code is undefined behavior. + +template +::std::string PrintValue(const tuple& value) { + ::std::stringstream stream; + stream << "(" << get<0>(value) << ", " << get<1>(value) << ")"; + return stream.str(); +} + +template +::std::string PrintValue(const tuple& value) { + ::std::stringstream stream; + stream << "(" << get<0>(value) << ", " << get<1>(value) + << ", "<< get<2>(value) << ")"; + return stream.str(); +} + +template +::std::string PrintValue( + const tuple& value) { + ::std::stringstream stream; + stream << "(" << get<0>(value) << ", " << get<1>(value) + << ", "<< get<2>(value) << ", " << get<3>(value) + << ", "<< get<4>(value) << ", " << get<5>(value) + << ", "<< get<6>(value) << ", " << get<7>(value) + << ", "<< get<8>(value) << ", " << get<9>(value) << ")"; + return stream.str(); +} + +# endif // GTEST_HAS_COMBINE + +// Verifies that a sequence generated by the generator and accessed +// via the iterator object matches the expected one using Google Test +// assertions. +template +void VerifyGenerator(const ParamGenerator& generator, + const T (&expected_values)[N]) { + typename ParamGenerator::iterator it = generator.begin(); + for (size_t i = 0; i < N; ++i) { + ASSERT_FALSE(it == generator.end()) + << "At element " << i << " when accessing via an iterator " + << "created with the copy constructor.\n"; + // We cannot use EXPECT_EQ() here as the values may be tuples, + // which don't support <<. + EXPECT_TRUE(expected_values[i] == *it) + << "where i is " << i + << ", expected_values[i] is " << PrintValue(expected_values[i]) + << ", *it is " << PrintValue(*it) + << ", and 'it' is an iterator created with the copy constructor.\n"; + it++; + } + EXPECT_TRUE(it == generator.end()) + << "At the presumed end of sequence when accessing via an iterator " + << "created with the copy constructor.\n"; + + // Test the iterator assignment. The following lines verify that + // the sequence accessed via an iterator initialized via the + // assignment operator (as opposed to a copy constructor) matches + // just the same. + it = generator.begin(); + for (size_t i = 0; i < N; ++i) { + ASSERT_FALSE(it == generator.end()) + << "At element " << i << " when accessing via an iterator " + << "created with the assignment operator.\n"; + EXPECT_TRUE(expected_values[i] == *it) + << "where i is " << i + << ", expected_values[i] is " << PrintValue(expected_values[i]) + << ", *it is " << PrintValue(*it) + << ", and 'it' is an iterator created with the copy constructor.\n"; + it++; + } + EXPECT_TRUE(it == generator.end()) + << "At the presumed end of sequence when accessing via an iterator " + << "created with the assignment operator.\n"; +} + +template +void VerifyGeneratorIsEmpty(const ParamGenerator& generator) { + typename ParamGenerator::iterator it = generator.begin(); + EXPECT_TRUE(it == generator.end()); + + it = generator.begin(); + EXPECT_TRUE(it == generator.end()); +} + +// Generator tests. They test that each of the provided generator functions +// generates an expected sequence of values. The general test pattern +// instantiates a generator using one of the generator functions, +// checks the sequence produced by the generator using its iterator API, +// and then resets the iterator back to the beginning of the sequence +// and checks the sequence again. + +// Tests that iterators produced by generator functions conform to the +// ForwardIterator concept. +TEST(IteratorTest, ParamIteratorConformsToForwardIteratorConcept) { + const ParamGenerator gen = Range(0, 10); + ParamGenerator::iterator it = gen.begin(); + + // Verifies that iterator initialization works as expected. + ParamGenerator::iterator it2 = it; + EXPECT_TRUE(*it == *it2) << "Initialized iterators must point to the " + << "element same as its source points to"; + + // Verifies that iterator assignment works as expected. + it++; + EXPECT_FALSE(*it == *it2); + it2 = it; + EXPECT_TRUE(*it == *it2) << "Assigned iterators must point to the " + << "element same as its source points to"; + + // Verifies that prefix operator++() returns *this. + EXPECT_EQ(&it, &(++it)) << "Result of the prefix operator++ must be " + << "refer to the original object"; + + // Verifies that the result of the postfix operator++ points to the value + // pointed to by the original iterator. + int original_value = *it; // Have to compute it outside of macro call to be + // unaffected by the parameter evaluation order. + EXPECT_EQ(original_value, *(it++)); + + // Verifies that prefix and postfix operator++() advance an iterator + // all the same. + it2 = it; + it++; + ++it2; + EXPECT_TRUE(*it == *it2); +} + +// Tests that Range() generates the expected sequence. +TEST(RangeTest, IntRangeWithDefaultStep) { + const ParamGenerator gen = Range(0, 3); + const int expected_values[] = {0, 1, 2}; + VerifyGenerator(gen, expected_values); +} + +// Edge case. Tests that Range() generates the single element sequence +// as expected when provided with range limits that are equal. +TEST(RangeTest, IntRangeSingleValue) { + const ParamGenerator gen = Range(0, 1); + const int expected_values[] = {0}; + VerifyGenerator(gen, expected_values); +} + +// Edge case. Tests that Range() with generates empty sequence when +// supplied with an empty range. +TEST(RangeTest, IntRangeEmpty) { + const ParamGenerator gen = Range(0, 0); + VerifyGeneratorIsEmpty(gen); +} + +// Tests that Range() with custom step (greater then one) generates +// the expected sequence. +TEST(RangeTest, IntRangeWithCustomStep) { + const ParamGenerator gen = Range(0, 9, 3); + const int expected_values[] = {0, 3, 6}; + VerifyGenerator(gen, expected_values); +} + +// Tests that Range() with custom step (greater then one) generates +// the expected sequence when the last element does not fall on the +// upper range limit. Sequences generated by Range() must not have +// elements beyond the range limits. +TEST(RangeTest, IntRangeWithCustomStepOverUpperBound) { + const ParamGenerator gen = Range(0, 4, 3); + const int expected_values[] = {0, 3}; + VerifyGenerator(gen, expected_values); +} + +// Verifies that Range works with user-defined types that define +// copy constructor, operator=(), operator+(), and operator<(). +class DogAdder { + public: + explicit DogAdder(const char* a_value) : value_(a_value) {} + DogAdder(const DogAdder& other) : value_(other.value_.c_str()) {} + + DogAdder operator=(const DogAdder& other) { + if (this != &other) + value_ = other.value_; + return *this; + } + DogAdder operator+(const DogAdder& other) const { + Message msg; + msg << value_.c_str() << other.value_.c_str(); + return DogAdder(msg.GetString().c_str()); + } + bool operator<(const DogAdder& other) const { + return value_ < other.value_; + } + const ::testing::internal::String& value() const { return value_; } + + private: + ::testing::internal::String value_; +}; + +TEST(RangeTest, WorksWithACustomType) { + const ParamGenerator gen = + Range(DogAdder("cat"), DogAdder("catdogdog"), DogAdder("dog")); + ParamGenerator::iterator it = gen.begin(); + + ASSERT_FALSE(it == gen.end()); + EXPECT_STREQ("cat", it->value().c_str()); + + ASSERT_FALSE(++it == gen.end()); + EXPECT_STREQ("catdog", it->value().c_str()); + + EXPECT_TRUE(++it == gen.end()); +} + +class IntWrapper { + public: + explicit IntWrapper(int a_value) : value_(a_value) {} + IntWrapper(const IntWrapper& other) : value_(other.value_) {} + + IntWrapper operator=(const IntWrapper& other) { + value_ = other.value_; + return *this; + } + // operator+() adds a different type. + IntWrapper operator+(int other) const { return IntWrapper(value_ + other); } + bool operator<(const IntWrapper& other) const { + return value_ < other.value_; + } + int value() const { return value_; } + + private: + int value_; +}; + +TEST(RangeTest, WorksWithACustomTypeWithDifferentIncrementType) { + const ParamGenerator gen = Range(IntWrapper(0), IntWrapper(2)); + ParamGenerator::iterator it = gen.begin(); + + ASSERT_FALSE(it == gen.end()); + EXPECT_EQ(0, it->value()); + + ASSERT_FALSE(++it == gen.end()); + EXPECT_EQ(1, it->value()); + + EXPECT_TRUE(++it == gen.end()); +} + +// Tests that ValuesIn() with an array parameter generates +// the expected sequence. +TEST(ValuesInTest, ValuesInArray) { + int array[] = {3, 5, 8}; + const ParamGenerator gen = ValuesIn(array); + VerifyGenerator(gen, array); +} + +// Tests that ValuesIn() with a const array parameter generates +// the expected sequence. +TEST(ValuesInTest, ValuesInConstArray) { + const int array[] = {3, 5, 8}; + const ParamGenerator gen = ValuesIn(array); + VerifyGenerator(gen, array); +} + +// Edge case. Tests that ValuesIn() with an array parameter containing a +// single element generates the single element sequence. +TEST(ValuesInTest, ValuesInSingleElementArray) { + int array[] = {42}; + const ParamGenerator gen = ValuesIn(array); + VerifyGenerator(gen, array); +} + +// Tests that ValuesIn() generates the expected sequence for an STL +// container (vector). +TEST(ValuesInTest, ValuesInVector) { + typedef ::std::vector ContainerType; + ContainerType values; + values.push_back(3); + values.push_back(5); + values.push_back(8); + const ParamGenerator gen = ValuesIn(values); + + const int expected_values[] = {3, 5, 8}; + VerifyGenerator(gen, expected_values); +} + +// Tests that ValuesIn() generates the expected sequence. +TEST(ValuesInTest, ValuesInIteratorRange) { + typedef ::std::vector ContainerType; + ContainerType values; + values.push_back(3); + values.push_back(5); + values.push_back(8); + const ParamGenerator gen = ValuesIn(values.begin(), values.end()); + + const int expected_values[] = {3, 5, 8}; + VerifyGenerator(gen, expected_values); +} + +// Edge case. Tests that ValuesIn() provided with an iterator range specifying a +// single value generates a single-element sequence. +TEST(ValuesInTest, ValuesInSingleElementIteratorRange) { + typedef ::std::vector ContainerType; + ContainerType values; + values.push_back(42); + const ParamGenerator gen = ValuesIn(values.begin(), values.end()); + + const int expected_values[] = {42}; + VerifyGenerator(gen, expected_values); +} + +// Edge case. Tests that ValuesIn() provided with an empty iterator range +// generates an empty sequence. +TEST(ValuesInTest, ValuesInEmptyIteratorRange) { + typedef ::std::vector ContainerType; + ContainerType values; + const ParamGenerator gen = ValuesIn(values.begin(), values.end()); + + VerifyGeneratorIsEmpty(gen); +} + +// Tests that the Values() generates the expected sequence. +TEST(ValuesTest, ValuesWorks) { + const ParamGenerator gen = Values(3, 5, 8); + + const int expected_values[] = {3, 5, 8}; + VerifyGenerator(gen, expected_values); +} + +// Tests that Values() generates the expected sequences from elements of +// different types convertible to ParamGenerator's parameter type. +TEST(ValuesTest, ValuesWorksForValuesOfCompatibleTypes) { + const ParamGenerator gen = Values(3, 5.0f, 8.0); + + const double expected_values[] = {3.0, 5.0, 8.0}; + VerifyGenerator(gen, expected_values); +} + +TEST(ValuesTest, ValuesWorksForMaxLengthList) { + const ParamGenerator gen = Values( + 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, + 110, 120, 130, 140, 150, 160, 170, 180, 190, 200, + 210, 220, 230, 240, 250, 260, 270, 280, 290, 300, + 310, 320, 330, 340, 350, 360, 370, 380, 390, 400, + 410, 420, 430, 440, 450, 460, 470, 480, 490, 500); + + const int expected_values[] = { + 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, + 110, 120, 130, 140, 150, 160, 170, 180, 190, 200, + 210, 220, 230, 240, 250, 260, 270, 280, 290, 300, + 310, 320, 330, 340, 350, 360, 370, 380, 390, 400, + 410, 420, 430, 440, 450, 460, 470, 480, 490, 500}; + VerifyGenerator(gen, expected_values); +} + +// Edge case test. Tests that single-parameter Values() generates the sequence +// with the single value. +TEST(ValuesTest, ValuesWithSingleParameter) { + const ParamGenerator gen = Values(42); + + const int expected_values[] = {42}; + VerifyGenerator(gen, expected_values); +} + +// Tests that Bool() generates sequence (false, true). +TEST(BoolTest, BoolWorks) { + const ParamGenerator gen = Bool(); + + const bool expected_values[] = {false, true}; + VerifyGenerator(gen, expected_values); +} + +# if GTEST_HAS_COMBINE + +// Tests that Combine() with two parameters generates the expected sequence. +TEST(CombineTest, CombineWithTwoParameters) { + const char* foo = "foo"; + const char* bar = "bar"; + const ParamGenerator > gen = + Combine(Values(foo, bar), Values(3, 4)); + + tuple expected_values[] = { + make_tuple(foo, 3), make_tuple(foo, 4), + make_tuple(bar, 3), make_tuple(bar, 4)}; + VerifyGenerator(gen, expected_values); +} + +// Tests that Combine() with three parameters generates the expected sequence. +TEST(CombineTest, CombineWithThreeParameters) { + const ParamGenerator > gen = Combine(Values(0, 1), + Values(3, 4), + Values(5, 6)); + tuple expected_values[] = { + make_tuple(0, 3, 5), make_tuple(0, 3, 6), + make_tuple(0, 4, 5), make_tuple(0, 4, 6), + make_tuple(1, 3, 5), make_tuple(1, 3, 6), + make_tuple(1, 4, 5), make_tuple(1, 4, 6)}; + VerifyGenerator(gen, expected_values); +} + +// Tests that the Combine() with the first parameter generating a single value +// sequence generates a sequence with the number of elements equal to the +// number of elements in the sequence generated by the second parameter. +TEST(CombineTest, CombineWithFirstParameterSingleValue) { + const ParamGenerator > gen = Combine(Values(42), + Values(0, 1)); + + tuple expected_values[] = {make_tuple(42, 0), make_tuple(42, 1)}; + VerifyGenerator(gen, expected_values); +} + +// Tests that the Combine() with the second parameter generating a single value +// sequence generates a sequence with the number of elements equal to the +// number of elements in the sequence generated by the first parameter. +TEST(CombineTest, CombineWithSecondParameterSingleValue) { + const ParamGenerator > gen = Combine(Values(0, 1), + Values(42)); + + tuple expected_values[] = {make_tuple(0, 42), make_tuple(1, 42)}; + VerifyGenerator(gen, expected_values); +} + +// Tests that when the first parameter produces an empty sequence, +// Combine() produces an empty sequence, too. +TEST(CombineTest, CombineWithFirstParameterEmptyRange) { + const ParamGenerator > gen = Combine(Range(0, 0), + Values(0, 1)); + VerifyGeneratorIsEmpty(gen); +} + +// Tests that when the second parameter produces an empty sequence, +// Combine() produces an empty sequence, too. +TEST(CombineTest, CombineWithSecondParameterEmptyRange) { + const ParamGenerator > gen = Combine(Values(0, 1), + Range(1, 1)); + VerifyGeneratorIsEmpty(gen); +} + +// Edge case. Tests that combine works with the maximum number +// of parameters supported by Google Test (currently 10). +TEST(CombineTest, CombineWithMaxNumberOfParameters) { + const char* foo = "foo"; + const char* bar = "bar"; + const ParamGenerator > gen = Combine(Values(foo, bar), + Values(1), Values(2), + Values(3), Values(4), + Values(5), Values(6), + Values(7), Values(8), + Values(9)); + + tuple + expected_values[] = {make_tuple(foo, 1, 2, 3, 4, 5, 6, 7, 8, 9), + make_tuple(bar, 1, 2, 3, 4, 5, 6, 7, 8, 9)}; + VerifyGenerator(gen, expected_values); +} + +# endif // GTEST_HAS_COMBINE + +// Tests that an generator produces correct sequence after being +// assigned from another generator. +TEST(ParamGeneratorTest, AssignmentWorks) { + ParamGenerator gen = Values(1, 2); + const ParamGenerator gen2 = Values(3, 4); + gen = gen2; + + const int expected_values[] = {3, 4}; + VerifyGenerator(gen, expected_values); +} + +// This test verifies that the tests are expanded and run as specified: +// one test per element from the sequence produced by the generator +// specified in INSTANTIATE_TEST_CASE_P. It also verifies that the test's +// fixture constructor, SetUp(), and TearDown() have run and have been +// supplied with the correct parameters. + +// The use of environment object allows detection of the case where no test +// case functionality is run at all. In this case TestCaseTearDown will not +// be able to detect missing tests, naturally. +template +class TestGenerationEnvironment : public ::testing::Environment { + public: + static TestGenerationEnvironment* Instance() { + static TestGenerationEnvironment* instance = new TestGenerationEnvironment; + return instance; + } + + void FixtureConstructorExecuted() { fixture_constructor_count_++; } + void SetUpExecuted() { set_up_count_++; } + void TearDownExecuted() { tear_down_count_++; } + void TestBodyExecuted() { test_body_count_++; } + + virtual void TearDown() { + // If all MultipleTestGenerationTest tests have been de-selected + // by the filter flag, the following checks make no sense. + bool perform_check = false; + + for (int i = 0; i < kExpectedCalls; ++i) { + Message msg; + msg << "TestsExpandedAndRun/" << i; + if (UnitTestOptions::FilterMatchesTest( + "TestExpansionModule/MultipleTestGenerationTest", + msg.GetString().c_str())) { + perform_check = true; + } + } + if (perform_check) { + EXPECT_EQ(kExpectedCalls, fixture_constructor_count_) + << "Fixture constructor of ParamTestGenerationTest test case " + << "has not been run as expected."; + EXPECT_EQ(kExpectedCalls, set_up_count_) + << "Fixture SetUp method of ParamTestGenerationTest test case " + << "has not been run as expected."; + EXPECT_EQ(kExpectedCalls, tear_down_count_) + << "Fixture TearDown method of ParamTestGenerationTest test case " + << "has not been run as expected."; + EXPECT_EQ(kExpectedCalls, test_body_count_) + << "Test in ParamTestGenerationTest test case " + << "has not been run as expected."; + } + } + private: + TestGenerationEnvironment() : fixture_constructor_count_(0), set_up_count_(0), + tear_down_count_(0), test_body_count_(0) {} + + int fixture_constructor_count_; + int set_up_count_; + int tear_down_count_; + int test_body_count_; + + GTEST_DISALLOW_COPY_AND_ASSIGN_(TestGenerationEnvironment); +}; + +const int test_generation_params[] = {36, 42, 72}; + +class TestGenerationTest : public TestWithParam { + public: + enum { + PARAMETER_COUNT = + sizeof(test_generation_params)/sizeof(test_generation_params[0]) + }; + + typedef TestGenerationEnvironment Environment; + + TestGenerationTest() { + Environment::Instance()->FixtureConstructorExecuted(); + current_parameter_ = GetParam(); + } + virtual void SetUp() { + Environment::Instance()->SetUpExecuted(); + EXPECT_EQ(current_parameter_, GetParam()); + } + virtual void TearDown() { + Environment::Instance()->TearDownExecuted(); + EXPECT_EQ(current_parameter_, GetParam()); + } + + static void SetUpTestCase() { + bool all_tests_in_test_case_selected = true; + + for (int i = 0; i < PARAMETER_COUNT; ++i) { + Message test_name; + test_name << "TestsExpandedAndRun/" << i; + if ( !UnitTestOptions::FilterMatchesTest( + "TestExpansionModule/MultipleTestGenerationTest", + test_name.GetString())) { + all_tests_in_test_case_selected = false; + } + } + EXPECT_TRUE(all_tests_in_test_case_selected) + << "When running the TestGenerationTest test case all of its tests\n" + << "must be selected by the filter flag for the test case to pass.\n" + << "If not all of them are enabled, we can't reliably conclude\n" + << "that the correct number of tests have been generated."; + + collected_parameters_.clear(); + } + + static void TearDownTestCase() { + vector expected_values(test_generation_params, + test_generation_params + PARAMETER_COUNT); + // Test execution order is not guaranteed by Google Test, + // so the order of values in collected_parameters_ can be + // different and we have to sort to compare. + sort(expected_values.begin(), expected_values.end()); + sort(collected_parameters_.begin(), collected_parameters_.end()); + + EXPECT_TRUE(collected_parameters_ == expected_values); + } + protected: + int current_parameter_; + static vector collected_parameters_; + + private: + GTEST_DISALLOW_COPY_AND_ASSIGN_(TestGenerationTest); +}; +vector TestGenerationTest::collected_parameters_; + +TEST_P(TestGenerationTest, TestsExpandedAndRun) { + Environment::Instance()->TestBodyExecuted(); + EXPECT_EQ(current_parameter_, GetParam()); + collected_parameters_.push_back(GetParam()); +} +INSTANTIATE_TEST_CASE_P(TestExpansionModule, TestGenerationTest, + ValuesIn(test_generation_params)); + +// This test verifies that the element sequence (third parameter of +// INSTANTIATE_TEST_CASE_P) is evaluated in InitGoogleTest() and neither at +// the call site of INSTANTIATE_TEST_CASE_P nor in RUN_ALL_TESTS(). For +// that, we declare param_value_ to be a static member of +// GeneratorEvaluationTest and initialize it to 0. We set it to 1 in +// main(), just before invocation of InitGoogleTest(). After calling +// InitGoogleTest(), we set the value to 2. If the sequence is evaluated +// before or after InitGoogleTest, INSTANTIATE_TEST_CASE_P will create a +// test with parameter other than 1, and the test body will fail the +// assertion. +class GeneratorEvaluationTest : public TestWithParam { + public: + static int param_value() { return param_value_; } + static void set_param_value(int param_value) { param_value_ = param_value; } + + private: + static int param_value_; +}; +int GeneratorEvaluationTest::param_value_ = 0; + +TEST_P(GeneratorEvaluationTest, GeneratorsEvaluatedInMain) { + EXPECT_EQ(1, GetParam()); +} +INSTANTIATE_TEST_CASE_P(GenEvalModule, + GeneratorEvaluationTest, + Values(GeneratorEvaluationTest::param_value())); + +// Tests that generators defined in a different translation unit are +// functional. Generator extern_gen is defined in gtest-param-test_test2.cc. +extern ParamGenerator extern_gen; +class ExternalGeneratorTest : public TestWithParam {}; +TEST_P(ExternalGeneratorTest, ExternalGenerator) { + // Sequence produced by extern_gen contains only a single value + // which we verify here. + EXPECT_EQ(GetParam(), 33); +} +INSTANTIATE_TEST_CASE_P(ExternalGeneratorModule, + ExternalGeneratorTest, + extern_gen); + +// Tests that a parameterized test case can be defined in one translation +// unit and instantiated in another. This test will be instantiated in +// gtest-param-test_test2.cc. ExternalInstantiationTest fixture class is +// defined in gtest-param-test_test.h. +TEST_P(ExternalInstantiationTest, IsMultipleOf33) { + EXPECT_EQ(0, GetParam() % 33); +} + +// Tests that a parameterized test case can be instantiated with multiple +// generators. +class MultipleInstantiationTest : public TestWithParam {}; +TEST_P(MultipleInstantiationTest, AllowsMultipleInstances) { +} +INSTANTIATE_TEST_CASE_P(Sequence1, MultipleInstantiationTest, Values(1, 2)); +INSTANTIATE_TEST_CASE_P(Sequence2, MultipleInstantiationTest, Range(3, 5)); + +// Tests that a parameterized test case can be instantiated +// in multiple translation units. This test will be instantiated +// here and in gtest-param-test_test2.cc. +// InstantiationInMultipleTranslationUnitsTest fixture class +// is defined in gtest-param-test_test.h. +TEST_P(InstantiationInMultipleTranslaionUnitsTest, IsMultipleOf42) { + EXPECT_EQ(0, GetParam() % 42); +} +INSTANTIATE_TEST_CASE_P(Sequence1, + InstantiationInMultipleTranslaionUnitsTest, + Values(42, 42*2)); + +// Tests that each iteration of parameterized test runs in a separate test +// object. +class SeparateInstanceTest : public TestWithParam { + public: + SeparateInstanceTest() : count_(0) {} + + static void TearDownTestCase() { + EXPECT_GE(global_count_, 2) + << "If some (but not all) SeparateInstanceTest tests have been " + << "filtered out this test will fail. Make sure that all " + << "GeneratorEvaluationTest are selected or de-selected together " + << "by the test filter."; + } + + protected: + int count_; + static int global_count_; +}; +int SeparateInstanceTest::global_count_ = 0; + +TEST_P(SeparateInstanceTest, TestsRunInSeparateInstances) { + EXPECT_EQ(0, count_++); + global_count_++; +} +INSTANTIATE_TEST_CASE_P(FourElemSequence, SeparateInstanceTest, Range(1, 4)); + +// Tests that all instantiations of a test have named appropriately. Test +// defined with TEST_P(TestCaseName, TestName) and instantiated with +// INSTANTIATE_TEST_CASE_P(SequenceName, TestCaseName, generator) must be named +// SequenceName/TestCaseName.TestName/i, where i is the 0-based index of the +// sequence element used to instantiate the test. +class NamingTest : public TestWithParam {}; + +TEST_P(NamingTest, TestsReportCorrectNamesAndParameters) { + const ::testing::TestInfo* const test_info = + ::testing::UnitTest::GetInstance()->current_test_info(); + + EXPECT_STREQ("ZeroToFiveSequence/NamingTest", test_info->test_case_name()); + + Message index_stream; + index_stream << "TestsReportCorrectNamesAndParameters/" << GetParam(); + EXPECT_STREQ(index_stream.GetString().c_str(), test_info->name()); + + EXPECT_EQ(::testing::PrintToString(GetParam()), test_info->value_param()); +} + +INSTANTIATE_TEST_CASE_P(ZeroToFiveSequence, NamingTest, Range(0, 5)); + +// Class that cannot be streamed into an ostream. It needs to be copyable +// (and, in case of MSVC, also assignable) in order to be a test parameter +// type. Its default copy constructor and assignment operator do exactly +// what we need. +class Unstreamable { + public: + explicit Unstreamable(int value) : value_(value) {} + + private: + int value_; +}; + +class CommentTest : public TestWithParam {}; + +TEST_P(CommentTest, TestsCorrectlyReportUnstreamableParams) { + const ::testing::TestInfo* const test_info = + ::testing::UnitTest::GetInstance()->current_test_info(); + + EXPECT_EQ(::testing::PrintToString(GetParam()), test_info->value_param()); +} + +INSTANTIATE_TEST_CASE_P(InstantiationWithComments, + CommentTest, + Values(Unstreamable(1))); + +// Verify that we can create a hierarchy of test fixtures, where the base +// class fixture is not parameterized and the derived class is. In this case +// ParameterizedDerivedTest inherits from NonParameterizedBaseTest. We +// perform simple tests on both. +class NonParameterizedBaseTest : public ::testing::Test { + public: + NonParameterizedBaseTest() : n_(17) { } + protected: + int n_; +}; + +class ParameterizedDerivedTest : public NonParameterizedBaseTest, + public ::testing::WithParamInterface { + protected: + ParameterizedDerivedTest() : count_(0) { } + int count_; + static int global_count_; +}; + +int ParameterizedDerivedTest::global_count_ = 0; + +TEST_F(NonParameterizedBaseTest, FixtureIsInitialized) { + EXPECT_EQ(17, n_); +} + +TEST_P(ParameterizedDerivedTest, SeesSequence) { + EXPECT_EQ(17, n_); + EXPECT_EQ(0, count_++); + EXPECT_EQ(GetParam(), global_count_++); +} + +INSTANTIATE_TEST_CASE_P(RangeZeroToFive, ParameterizedDerivedTest, Range(0, 5)); + +#endif // GTEST_HAS_PARAM_TEST + +TEST(CompileTest, CombineIsDefinedOnlyWhenGtestHasParamTestIsDefined) { +#if GTEST_HAS_COMBINE && !GTEST_HAS_PARAM_TEST + FAIL() << "GTEST_HAS_COMBINE is defined while GTEST_HAS_PARAM_TEST is not\n" +#endif +} + +int main(int argc, char **argv) { +#if GTEST_HAS_PARAM_TEST + // Used in TestGenerationTest test case. + AddGlobalTestEnvironment(TestGenerationTest::Environment::Instance()); + // Used in GeneratorEvaluationTest test case. Tests that the updated value + // will be picked up for instantiating tests in GeneratorEvaluationTest. + GeneratorEvaluationTest::set_param_value(1); +#endif // GTEST_HAS_PARAM_TEST + + ::testing::InitGoogleTest(&argc, argv); + +#if GTEST_HAS_PARAM_TEST + // Used in GeneratorEvaluationTest test case. Tests that value updated + // here will NOT be used for instantiating tests in + // GeneratorEvaluationTest. + GeneratorEvaluationTest::set_param_value(2); +#endif // GTEST_HAS_PARAM_TEST + + return RUN_ALL_TESTS(); +} -- cgit v1.2.3