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R9484/googletest/test/gtest-typed-test_test.cc
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// 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.
#include "test/gtest-typed-test_test.h"
#include <set>
#include <vector>
#include "gtest/gtest.h"
#if _MSC_VER
GTEST_DISABLE_MSC_WARNINGS_PUSH_(4127 /* conditional expression is constant */)
#endif // _MSC_VER
using testing::Test;
// Used for testing that SetUpTestCase()/TearDownTestCase(), fixture
// ctor/dtor, and SetUp()/TearDown() work correctly in typed tests and
// type-parameterized test.
template <typename T>
class CommonTest : public Test {
// For some technical reason, SetUpTestCase() and TearDownTestCase()
// must be public.
public:
static void SetUpTestCase() {
shared_ = new T(5);
}
static void TearDownTestCase() {
delete shared_;
shared_ = nullptr;
}
// This 'protected:' is optional. There's no harm in making all
// members of this fixture class template public.
protected:
// We used to use std::list here, but switched to std::vector since
// MSVC's <list> doesn't compile cleanly with /W4.
typedef std::vector<T> Vector;
typedef std::set<int> IntSet;
CommonTest() : value_(1) {}
~CommonTest() override { EXPECT_EQ(3, value_); }
void SetUp() override {
EXPECT_EQ(1, value_);
value_++;
}
void TearDown() override {
EXPECT_EQ(2, value_);
value_++;
}
T value_;
static T* shared_;
};
template <typename T>
T* CommonTest<T>::shared_ = nullptr;
// This #ifdef block tests typed tests.
#if GTEST_HAS_TYPED_TEST
using testing::Types;
// Tests that SetUpTestCase()/TearDownTestCase(), fixture ctor/dtor,
// and SetUp()/TearDown() work correctly in typed tests
typedef Types<char, int> TwoTypes;
TYPED_TEST_CASE(CommonTest, TwoTypes);
TYPED_TEST(CommonTest, ValuesAreCorrect) {
// Static members of the fixture class template can be visited via
// the TestFixture:: prefix.
EXPECT_EQ(5, *TestFixture::shared_);
// Typedefs in the fixture class template can be visited via the
// "typename TestFixture::" prefix.
typename TestFixture::Vector empty;
EXPECT_EQ(0U, empty.size());
typename TestFixture::IntSet empty2;
EXPECT_EQ(0U, empty2.size());
// Non-static members of the fixture class must be visited via
// 'this', as required by C++ for class templates.
EXPECT_EQ(2, this->value_);
}
// The second test makes sure shared_ is not deleted after the first
// test.
TYPED_TEST(CommonTest, ValuesAreStillCorrect) {
// Static members of the fixture class template can also be visited
// via 'this'.
ASSERT_TRUE(this->shared_ != nullptr);
EXPECT_EQ(5, *this->shared_);
// TypeParam can be used to refer to the type parameter.
EXPECT_EQ(static_cast<TypeParam>(2), this->value_);
}
// Tests that multiple TYPED_TEST_CASE's can be defined in the same
// translation unit.
template <typename T>
class TypedTest1 : public Test {
};
// Verifies that the second argument of TYPED_TEST_CASE can be a
// single type.
TYPED_TEST_CASE(TypedTest1, int);
TYPED_TEST(TypedTest1, A) {}
template <typename T>
class TypedTest2 : public Test {
};
// Verifies that the second argument of TYPED_TEST_CASE can be a
// Types<...> type list.
TYPED_TEST_CASE(TypedTest2, Types<int>);
// This also verifies that tests from different typed test cases can
// share the same name.
TYPED_TEST(TypedTest2, A) {}
// Tests that a typed test case can be defined in a namespace.
namespace library1 {
template <typename T>
class NumericTest : public Test {
};
typedef Types<int, long> NumericTypes;
TYPED_TEST_CASE(NumericTest, NumericTypes);
TYPED_TEST(NumericTest, DefaultIsZero) {
EXPECT_EQ(0, TypeParam());
}
} // namespace library1
// Tests that custom names work.
template <typename T>
class TypedTestWithNames : public Test {};
class TypedTestNames {
public:
template <typename T>
static std::string GetName(int i) {
if (testing::internal::IsSame<T, char>::value) {
return std::string("char") + ::testing::PrintToString(i);
}
if (testing::internal::IsSame<T, int>::value) {
return std::string("int") + ::testing::PrintToString(i);
}
}
};
TYPED_TEST_CASE(TypedTestWithNames, TwoTypes, TypedTestNames);
TYPED_TEST(TypedTestWithNames, TestCaseName) {
if (testing::internal::IsSame<TypeParam, char>::value) {
EXPECT_STREQ(::testing::UnitTest::GetInstance()
->current_test_info()
->test_case_name(),
"TypedTestWithNames/char0");
}
if (testing::internal::IsSame<TypeParam, int>::value) {
EXPECT_STREQ(::testing::UnitTest::GetInstance()
->current_test_info()
->test_case_name(),
"TypedTestWithNames/int1");
}
}
#endif // GTEST_HAS_TYPED_TEST
// This #ifdef block tests type-parameterized tests.
#if GTEST_HAS_TYPED_TEST_P
using testing::Types;
using testing::internal::TypedTestCasePState;
// Tests TypedTestCasePState.
class TypedTestCasePStateTest : public Test {
protected:
void SetUp() override {
state_.AddTestName("foo.cc", 0, "FooTest", "A");
state_.AddTestName("foo.cc", 0, "FooTest", "B");
state_.AddTestName("foo.cc", 0, "FooTest", "C");
}
TypedTestCasePState state_;
};
TEST_F(TypedTestCasePStateTest, SucceedsForMatchingList) {
const char* tests = "A, B, C";
EXPECT_EQ(tests,
state_.VerifyRegisteredTestNames("foo.cc", 1, tests));
}
// Makes sure that the order of the tests and spaces around the names
// don't matter.
TEST_F(TypedTestCasePStateTest, IgnoresOrderAndSpaces) {
const char* tests = "A,C, B";
EXPECT_EQ(tests,
state_.VerifyRegisteredTestNames("foo.cc", 1, tests));
}
typedef TypedTestCasePStateTest TypedTestCasePStateDeathTest;
TEST_F(TypedTestCasePStateDeathTest, DetectsDuplicates) {
EXPECT_DEATH_IF_SUPPORTED(
state_.VerifyRegisteredTestNames("foo.cc", 1, "A, B, A, C"),
"foo\\.cc.1.?: Test A is listed more than once\\.");
}
TEST_F(TypedTestCasePStateDeathTest, DetectsExtraTest) {
EXPECT_DEATH_IF_SUPPORTED(
state_.VerifyRegisteredTestNames("foo.cc", 1, "A, B, C, D"),
"foo\\.cc.1.?: No test named D can be found in this test case\\.");
}
TEST_F(TypedTestCasePStateDeathTest, DetectsMissedTest) {
EXPECT_DEATH_IF_SUPPORTED(
state_.VerifyRegisteredTestNames("foo.cc", 1, "A, C"),
"foo\\.cc.1.?: You forgot to list test B\\.");
}
// Tests that defining a test for a parameterized test case generates
// a run-time error if the test case has been registered.
TEST_F(TypedTestCasePStateDeathTest, DetectsTestAfterRegistration) {
state_.VerifyRegisteredTestNames("foo.cc", 1, "A, B, C");
EXPECT_DEATH_IF_SUPPORTED(
state_.AddTestName("foo.cc", 2, "FooTest", "D"),
"foo\\.cc.2.?: Test D must be defined before REGISTER_TYPED_TEST_CASE_P"
"\\(FooTest, \\.\\.\\.\\)\\.");
}
// Tests that SetUpTestCase()/TearDownTestCase(), fixture ctor/dtor,
// and SetUp()/TearDown() work correctly in type-parameterized tests.
template <typename T>
class DerivedTest : public CommonTest<T> {
};
TYPED_TEST_CASE_P(DerivedTest);
TYPED_TEST_P(DerivedTest, ValuesAreCorrect) {
// Static members of the fixture class template can be visited via
// the TestFixture:: prefix.
EXPECT_EQ(5, *TestFixture::shared_);
// Non-static members of the fixture class must be visited via
// 'this', as required by C++ for class templates.
EXPECT_EQ(2, this->value_);
}
// The second test makes sure shared_ is not deleted after the first
// test.
TYPED_TEST_P(DerivedTest, ValuesAreStillCorrect) {
// Static members of the fixture class template can also be visited
// via 'this'.
ASSERT_TRUE(this->shared_ != nullptr);
EXPECT_EQ(5, *this->shared_);
EXPECT_EQ(2, this->value_);
}
REGISTER_TYPED_TEST_CASE_P(DerivedTest,
ValuesAreCorrect, ValuesAreStillCorrect);
typedef Types<short, long> MyTwoTypes;
INSTANTIATE_TYPED_TEST_CASE_P(My, DerivedTest, MyTwoTypes);
// Tests that custom names work with type parametrized tests. We reuse the
// TwoTypes from above here.
template <typename T>
class TypeParametrizedTestWithNames : public Test {};
TYPED_TEST_CASE_P(TypeParametrizedTestWithNames);
TYPED_TEST_P(TypeParametrizedTestWithNames, TestCaseName) {
if (testing::internal::IsSame<TypeParam, char>::value) {
EXPECT_STREQ(::testing::UnitTest::GetInstance()
->current_test_info()
->test_case_name(),
"CustomName/TypeParametrizedTestWithNames/parChar0");
}
if (testing::internal::IsSame<TypeParam, int>::value) {
EXPECT_STREQ(::testing::UnitTest::GetInstance()
->current_test_info()
->test_case_name(),
"CustomName/TypeParametrizedTestWithNames/parInt1");
}
}
REGISTER_TYPED_TEST_CASE_P(TypeParametrizedTestWithNames, TestCaseName);
class TypeParametrizedTestNames {
public:
template <typename T>
static std::string GetName(int i) {
if (testing::internal::IsSame<T, char>::value) {
return std::string("parChar") + ::testing::PrintToString(i);
}
if (testing::internal::IsSame<T, int>::value) {
return std::string("parInt") + ::testing::PrintToString(i);
}
}
};
INSTANTIATE_TYPED_TEST_CASE_P(CustomName, TypeParametrizedTestWithNames,
TwoTypes, TypeParametrizedTestNames);
// Tests that multiple TYPED_TEST_CASE_P's can be defined in the same
// translation unit.
template <typename T>
class TypedTestP1 : public Test {
};
TYPED_TEST_CASE_P(TypedTestP1);
// For testing that the code between TYPED_TEST_CASE_P() and
// TYPED_TEST_P() is not enclosed in a namespace.
typedef int IntAfterTypedTestCaseP;
TYPED_TEST_P(TypedTestP1, A) {}
TYPED_TEST_P(TypedTestP1, B) {}
// For testing that the code between TYPED_TEST_P() and
// REGISTER_TYPED_TEST_CASE_P() is not enclosed in a namespace.
typedef int IntBeforeRegisterTypedTestCaseP;
REGISTER_TYPED_TEST_CASE_P(TypedTestP1, A, B);
template <typename T>
class TypedTestP2 : public Test {
};
TYPED_TEST_CASE_P(TypedTestP2);
// This also verifies that tests from different type-parameterized
// test cases can share the same name.
TYPED_TEST_P(TypedTestP2, A) {}
REGISTER_TYPED_TEST_CASE_P(TypedTestP2, A);
// Verifies that the code between TYPED_TEST_CASE_P() and
// REGISTER_TYPED_TEST_CASE_P() is not enclosed in a namespace.
IntAfterTypedTestCaseP after = 0;
IntBeforeRegisterTypedTestCaseP before = 0;
// Verifies that the last argument of INSTANTIATE_TYPED_TEST_CASE_P()
// can be either a single type or a Types<...> type list.
INSTANTIATE_TYPED_TEST_CASE_P(Int, TypedTestP1, int);
INSTANTIATE_TYPED_TEST_CASE_P(Int, TypedTestP2, Types<int>);
// Tests that the same type-parameterized test case can be
// instantiated more than once in the same translation unit.
INSTANTIATE_TYPED_TEST_CASE_P(Double, TypedTestP2, Types<double>);
// Tests that the same type-parameterized test case can be
// instantiated in different translation units linked together.
// (ContainerTest is also instantiated in gtest-typed-test_test.cc.)
typedef Types<std::vector<double>, std::set<char> > MyContainers;
INSTANTIATE_TYPED_TEST_CASE_P(My, ContainerTest, MyContainers);
// Tests that a type-parameterized test case can be defined and
// instantiated in a namespace.
namespace library2 {
template <typename T>
class NumericTest : public Test {
};
TYPED_TEST_CASE_P(NumericTest);
TYPED_TEST_P(NumericTest, DefaultIsZero) {
EXPECT_EQ(0, TypeParam());
}
TYPED_TEST_P(NumericTest, ZeroIsLessThanOne) {
EXPECT_LT(TypeParam(0), TypeParam(1));
}
REGISTER_TYPED_TEST_CASE_P(NumericTest,
DefaultIsZero, ZeroIsLessThanOne);
typedef Types<int, double> NumericTypes;
INSTANTIATE_TYPED_TEST_CASE_P(My, NumericTest, NumericTypes);
static const char* GetTestName() {
return testing::UnitTest::GetInstance()->current_test_info()->name();
}
// Test the stripping of space from test names
template <typename T> class TrimmedTest : public Test { };
TYPED_TEST_CASE_P(TrimmedTest);
TYPED_TEST_P(TrimmedTest, Test1) { EXPECT_STREQ("Test1", GetTestName()); }
TYPED_TEST_P(TrimmedTest, Test2) { EXPECT_STREQ("Test2", GetTestName()); }
TYPED_TEST_P(TrimmedTest, Test3) { EXPECT_STREQ("Test3", GetTestName()); }
TYPED_TEST_P(TrimmedTest, Test4) { EXPECT_STREQ("Test4", GetTestName()); }
TYPED_TEST_P(TrimmedTest, Test5) { EXPECT_STREQ("Test5", GetTestName()); }
REGISTER_TYPED_TEST_CASE_P(
TrimmedTest,
Test1, Test2,Test3 , Test4 ,Test5 ); // NOLINT
template <typename T1, typename T2> struct MyPair {};
// Be sure to try a type with a comma in its name just in case it matters.
typedef Types<int, double, MyPair<int, int> > TrimTypes;
INSTANTIATE_TYPED_TEST_CASE_P(My, TrimmedTest, TrimTypes);
} // namespace library2
#endif // GTEST_HAS_TYPED_TEST_P
#if !defined(GTEST_HAS_TYPED_TEST) && !defined(GTEST_HAS_TYPED_TEST_P)
// Google Test may not support type-parameterized tests with some
// compilers. If we use conditional compilation to compile out all
// code referring to the gtest_main library, MSVC linker will not link
// that library at all and consequently complain about missing entry
// point defined in that library (fatal error LNK1561: entry point
// must be defined). This dummy test keeps gtest_main linked in.
TEST(DummyTest, TypedTestsAreNotSupportedOnThisPlatform) {}
#if _MSC_VER
GTEST_DISABLE_MSC_WARNINGS_POP_() // 4127
#endif // _MSC_VER
#endif // #if !defined(GTEST_HAS_TYPED_TEST) && !defined(GTEST_HAS_TYPED_TEST_P)
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