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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.

//

// Author: wan@google.com (Zhanyong Wan)

#include "test/gtest-typed-test_test.h"

#include <set>

#include <vector>

#include "gtest/gtest.h"

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_ = NULL;

  }

  // 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) {}

  virtual ~CommonTest() { EXPECT_EQ(3, value_); }

  virtual void SetUp() {

    EXPECT_EQ(1, value_);

    value_++;

  }

  virtual void TearDown() {

    EXPECT_EQ(2, value_);

    value_++;

  }

  T value_;

  static T* shared_;

};

template <typename T>

T* CommonTest<T>::shared_ = NULL;

// 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_ != NULL);

  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

#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:

  virtual void SetUp() {

    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_ != NULL);

  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 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) {}

#endif  // #if !defined(GTEST_HAS_TYPED_TEST) && !defined(GTEST_HAS_TYPED_TEST_P)