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Diffstat (limited to 'third_party/googletest/googletest/test/gtest-param-test_test.cc')
| -rw-r--r-- | third_party/googletest/googletest/test/gtest-param-test_test.cc | 1110 |
1 files changed, 0 insertions, 1110 deletions
diff --git a/third_party/googletest/googletest/test/gtest-param-test_test.cc b/third_party/googletest/googletest/test/gtest-param-test_test.cc deleted file mode 100644 index adc4d1b..0000000 --- a/third_party/googletest/googletest/test/gtest-param-test_test.cc +++ /dev/null @@ -1,1110 +0,0 @@ -// 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" - -# include <algorithm> -# include <iostream> -# include <list> -# include <sstream> -# include <string> -# include <vector> - -# include "src/gtest-internal-inl.h" // for UnitTestOptions -# 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 ::testing::get; -using ::testing::make_tuple; -using ::testing::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 <typename T> -::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 <typename T1, typename T2> -::std::string PrintValue(const tuple<T1, T2>& value) { - ::std::stringstream stream; - stream << "(" << get<0>(value) << ", " << get<1>(value) << ")"; - return stream.str(); -} - -template <typename T1, typename T2, typename T3> -::std::string PrintValue(const tuple<T1, T2, T3>& value) { - ::std::stringstream stream; - stream << "(" << get<0>(value) << ", " << get<1>(value) - << ", "<< get<2>(value) << ")"; - return stream.str(); -} - -template <typename T1, typename T2, typename T3, typename T4, typename T5, - typename T6, typename T7, typename T8, typename T9, typename T10> -::std::string PrintValue( - const tuple<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10>& 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 <typename T, size_t N> -void VerifyGenerator(const ParamGenerator<T>& generator, - const T (&expected_values)[N]) { - typename ParamGenerator<T>::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 <typename T> -void VerifyGeneratorIsEmpty(const ParamGenerator<T>& generator) { - typename ParamGenerator<T>::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<int> gen = Range(0, 10); - ParamGenerator<int>::iterator it = gen.begin(); - - // Verifies that iterator initialization works as expected. - ParamGenerator<int>::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<int> 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<int> 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<int> gen = Range(0, 0); - VerifyGeneratorIsEmpty(gen); -} - -// Tests that Range() with custom step (greater then one) generates -// the expected sequence. -TEST(RangeTest, IntRangeWithCustomStep) { - const ParamGenerator<int> 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<int> 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 std::string& value() const { return value_; } - - private: - std::string value_; -}; - -TEST(RangeTest, WorksWithACustomType) { - const ParamGenerator<DogAdder> gen = - Range(DogAdder("cat"), DogAdder("catdogdog"), DogAdder("dog")); - ParamGenerator<DogAdder>::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<IntWrapper> gen = Range(IntWrapper(0), IntWrapper(2)); - ParamGenerator<IntWrapper>::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<int> 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<int> 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<int> gen = ValuesIn(array); - VerifyGenerator(gen, array); -} - -// Tests that ValuesIn() generates the expected sequence for an STL -// container (vector). -TEST(ValuesInTest, ValuesInVector) { - typedef ::std::vector<int> ContainerType; - ContainerType values; - values.push_back(3); - values.push_back(5); - values.push_back(8); - const ParamGenerator<int> 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<int> ContainerType; - ContainerType values; - values.push_back(3); - values.push_back(5); - values.push_back(8); - const ParamGenerator<int> 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<int> ContainerType; - ContainerType values; - values.push_back(42); - const ParamGenerator<int> 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<int> ContainerType; - ContainerType values; - const ParamGenerator<int> gen = ValuesIn(values.begin(), values.end()); - - VerifyGeneratorIsEmpty(gen); -} - -// Tests that the Values() generates the expected sequence. -TEST(ValuesTest, ValuesWorks) { - const ParamGenerator<int> 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<double> 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<int> 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<int> gen = Values(42); - - const int expected_values[] = {42}; - VerifyGenerator(gen, expected_values); -} - -// Tests that Bool() generates sequence (false, true). -TEST(BoolTest, BoolWorks) { - const ParamGenerator<bool> 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<tuple<const char*, int> > gen = - Combine(Values(foo, bar), Values(3, 4)); - - tuple<const char*, int> 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<tuple<int, int, int> > gen = Combine(Values(0, 1), - Values(3, 4), - Values(5, 6)); - tuple<int, int, int> 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<tuple<int, int> > gen = Combine(Values(42), - Values(0, 1)); - - tuple<int, int> 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<tuple<int, int> > gen = Combine(Values(0, 1), - Values(42)); - - tuple<int, int> 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<tuple<int, int> > 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<tuple<int, int> > 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<tuple<const char*, int, int, int, int, int, int, int, - int, int> > gen = Combine(Values(foo, bar), - Values(1), Values(2), - Values(3), Values(4), - Values(5), Values(6), - Values(7), Values(8), - Values(9)); - - tuple<const char*, int, int, int, int, int, int, int, int, int> - 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); -} - -#if GTEST_LANG_CXX11 - -class NonDefaultConstructAssignString { - public: - NonDefaultConstructAssignString(const std::string& s) : str_(s) {} - - const std::string& str() const { return str_; } - - private: - std::string str_; - - // Not default constructible - NonDefaultConstructAssignString(); - // Not assignable - void operator=(const NonDefaultConstructAssignString&); -}; - -TEST(CombineTest, NonDefaultConstructAssign) { - const ParamGenerator<tuple<int, NonDefaultConstructAssignString> > gen = - Combine(Values(0, 1), Values(NonDefaultConstructAssignString("A"), - NonDefaultConstructAssignString("B"))); - - ParamGenerator<tuple<int, NonDefaultConstructAssignString> >::iterator it = - gen.begin(); - - EXPECT_EQ(0, std::get<0>(*it)); - EXPECT_EQ("A", std::get<1>(*it).str()); - ++it; - - EXPECT_EQ(0, std::get<0>(*it)); - EXPECT_EQ("B", std::get<1>(*it).str()); - ++it; - - EXPECT_EQ(1, std::get<0>(*it)); - EXPECT_EQ("A", std::get<1>(*it).str()); - ++it; - - EXPECT_EQ(1, std::get<0>(*it)); - EXPECT_EQ("B", std::get<1>(*it).str()); - ++it; - - EXPECT_TRUE(it == gen.end()); -} - -#endif // GTEST_LANG_CXX11 -# endif // GTEST_HAS_COMBINE - -// Tests that an generator produces correct sequence after being -// assigned from another generator. -TEST(ParamGeneratorTest, AssignmentWorks) { - ParamGenerator<int> gen = Values(1, 2); - const ParamGenerator<int> 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 <int kExpectedCalls> -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<int> { - public: - enum { - PARAMETER_COUNT = - sizeof(test_generation_params)/sizeof(test_generation_params[0]) - }; - - typedef TestGenerationEnvironment<PARAMETER_COUNT> 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<int> 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<int> collected_parameters_; - - private: - GTEST_DISALLOW_COPY_AND_ASSIGN_(TestGenerationTest); -}; -vector<int> 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<int> { - 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<int> extern_gen; -class ExternalGeneratorTest : public TestWithParam<int> {}; -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<int> {}; -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<int> { - 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<int> {}; - -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)); - -// Tests that macros in test names are expanded correctly. -class MacroNamingTest : public TestWithParam<int> {}; - -#define PREFIX_WITH_FOO(test_name) Foo##test_name -#define PREFIX_WITH_MACRO(test_name) Macro##test_name - -TEST_P(PREFIX_WITH_MACRO(NamingTest), PREFIX_WITH_FOO(SomeTestName)) { - const ::testing::TestInfo* const test_info = - ::testing::UnitTest::GetInstance()->current_test_info(); - - EXPECT_STREQ("FortyTwo/MacroNamingTest", test_info->test_case_name()); - EXPECT_STREQ("FooSomeTestName", test_info->name()); -} - -INSTANTIATE_TEST_CASE_P(FortyTwo, MacroNamingTest, Values(42)); - -// Tests the same thing for non-parametrized tests. -class MacroNamingTestNonParametrized : public ::testing::Test {}; - -TEST_F(PREFIX_WITH_MACRO(NamingTestNonParametrized), - PREFIX_WITH_FOO(SomeTestName)) { - const ::testing::TestInfo* const test_info = - ::testing::UnitTest::GetInstance()->current_test_info(); - - EXPECT_STREQ("MacroNamingTestNonParametrized", test_info->test_case_name()); - EXPECT_STREQ("FooSomeTestName", test_info->name()); -} - -// Tests that user supplied custom parameter names are working correctly. -// Runs the test with a builtin helper method which uses PrintToString, -// as well as a custom function and custom functor to ensure all possible -// uses work correctly. -class CustomFunctorNamingTest : public TestWithParam<std::string> {}; -TEST_P(CustomFunctorNamingTest, CustomTestNames) {} - -struct CustomParamNameFunctor { - std::string operator()(const ::testing::TestParamInfo<std::string>& inf) { - return inf.param; - } -}; - -INSTANTIATE_TEST_CASE_P(CustomParamNameFunctor, - CustomFunctorNamingTest, - Values(std::string("FunctorName")), - CustomParamNameFunctor()); - -INSTANTIATE_TEST_CASE_P(AllAllowedCharacters, - CustomFunctorNamingTest, - Values("abcdefghijklmnopqrstuvwxyz", - "ABCDEFGHIJKLMNOPQRSTUVWXYZ", - "01234567890_"), - CustomParamNameFunctor()); - -inline std::string CustomParamNameFunction( - const ::testing::TestParamInfo<std::string>& inf) { - return inf.param; -} - -class CustomFunctionNamingTest : public TestWithParam<std::string> {}; -TEST_P(CustomFunctionNamingTest, CustomTestNames) {} - -INSTANTIATE_TEST_CASE_P(CustomParamNameFunction, - CustomFunctionNamingTest, - Values(std::string("FunctionName")), - CustomParamNameFunction); - -#if GTEST_LANG_CXX11 - -// Test custom naming with a lambda - -class CustomLambdaNamingTest : public TestWithParam<std::string> {}; -TEST_P(CustomLambdaNamingTest, CustomTestNames) {} - -INSTANTIATE_TEST_CASE_P(CustomParamNameLambda, CustomLambdaNamingTest, - Values(std::string("LambdaName")), - [](const ::testing::TestParamInfo<std::string>& inf) { - return inf.param; - }); - -#endif // GTEST_LANG_CXX11 - -TEST(CustomNamingTest, CheckNameRegistry) { - ::testing::UnitTest* unit_test = ::testing::UnitTest::GetInstance(); - std::set<std::string> test_names; - for (int case_num = 0; - case_num < unit_test->total_test_case_count(); - ++case_num) { - const ::testing::TestCase* test_case = unit_test->GetTestCase(case_num); - for (int test_num = 0; - test_num < test_case->total_test_count(); - ++test_num) { - const ::testing::TestInfo* test_info = test_case->GetTestInfo(test_num); - test_names.insert(std::string(test_info->name())); - } - } - EXPECT_EQ(1u, test_names.count("CustomTestNames/FunctorName")); - EXPECT_EQ(1u, test_names.count("CustomTestNames/FunctionName")); -#if GTEST_LANG_CXX11 - EXPECT_EQ(1u, test_names.count("CustomTestNames/LambdaName")); -#endif // GTEST_LANG_CXX11 -} - -// Test a numeric name to ensure PrintToStringParamName works correctly. - -class CustomIntegerNamingTest : public TestWithParam<int> {}; - -TEST_P(CustomIntegerNamingTest, TestsReportCorrectNames) { - const ::testing::TestInfo* const test_info = - ::testing::UnitTest::GetInstance()->current_test_info(); - Message test_name_stream; - test_name_stream << "TestsReportCorrectNames/" << GetParam(); - EXPECT_STREQ(test_name_stream.GetString().c_str(), test_info->name()); -} - -INSTANTIATE_TEST_CASE_P(PrintToString, - CustomIntegerNamingTest, - Range(0, 5), - ::testing::PrintToStringParamName()); - -// Test a custom struct with PrintToString. - -struct CustomStruct { - explicit CustomStruct(int value) : x(value) {} - int x; -}; - -std::ostream& operator<<(std::ostream& stream, const CustomStruct& val) { - stream << val.x; - return stream; -} - -class CustomStructNamingTest : public TestWithParam<CustomStruct> {}; - -TEST_P(CustomStructNamingTest, TestsReportCorrectNames) { - const ::testing::TestInfo* const test_info = - ::testing::UnitTest::GetInstance()->current_test_info(); - Message test_name_stream; - test_name_stream << "TestsReportCorrectNames/" << GetParam(); - EXPECT_STREQ(test_name_stream.GetString().c_str(), test_info->name()); -} - -INSTANTIATE_TEST_CASE_P(PrintToString, - CustomStructNamingTest, - Values(CustomStruct(0), CustomStruct(1)), - ::testing::PrintToStringParamName()); - -// Test that using a stateful parameter naming function works as expected. - -struct StatefulNamingFunctor { - StatefulNamingFunctor() : sum(0) {} - std::string operator()(const ::testing::TestParamInfo<int>& info) { - int value = info.param + sum; - sum += info.param; - return ::testing::PrintToString(value); - } - int sum; -}; - -class StatefulNamingTest : public ::testing::TestWithParam<int> { - protected: - StatefulNamingTest() : sum_(0) {} - int sum_; -}; - -TEST_P(StatefulNamingTest, TestsReportCorrectNames) { - const ::testing::TestInfo* const test_info = - ::testing::UnitTest::GetInstance()->current_test_info(); - sum_ += GetParam(); - Message test_name_stream; - test_name_stream << "TestsReportCorrectNames/" << sum_; - EXPECT_STREQ(test_name_stream.GetString().c_str(), test_info->name()); -} - -INSTANTIATE_TEST_CASE_P(StatefulNamingFunctor, - StatefulNamingTest, - Range(0, 5), - StatefulNamingFunctor()); - -// 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<Unstreamable> {}; - -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<int> { - 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_++); -} - -class ParameterizedDeathTest : public ::testing::TestWithParam<int> { }; - -TEST_F(ParameterizedDeathTest, GetParamDiesFromTestF) { - EXPECT_DEATH_IF_SUPPORTED(GetParam(), - ".* value-parameterized test .*"); -} - -INSTANTIATE_TEST_CASE_P(RangeZeroToFive, ParameterizedDerivedTest, Range(0, 5)); - - -int main(int argc, char **argv) { - // 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); - - ::testing::InitGoogleTest(&argc, argv); - - // Used in GeneratorEvaluationTest test case. Tests that value updated - // here will NOT be used for instantiating tests in - // GeneratorEvaluationTest. - GeneratorEvaluationTest::set_param_value(2); - - return RUN_ALL_TESTS(); -} |