ext/googletest/googlemock/test/gmock-generated-function-mockers_test.cc - public/gem5 - Git at Google

 // Copyright 2007, 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.


 // Google Mock - a framework for writing C++ mock classes.
 //
 // This file tests the function mocker classes.

 #include "gmock/gmock-generated-function-mockers.h"

 #if GTEST_OS_WINDOWS
 // MSDN says the header file to be included for STDMETHOD is BaseTyps.h but
 // we are getting compiler errors if we use basetyps.h, hence including
 // objbase.h for definition of STDMETHOD.
 # include <objbase.h>
 #endif  // GTEST_OS_WINDOWS

 #include <map>
 #include <string>
 #include "gmock/gmock.h"
 #include "gtest/gtest.h"

 namespace testing {
 namespace gmock_generated_function_mockers_test {

 using testing::_;
 using testing::A;
 using testing::An;
 using testing::AnyNumber;
 using testing::Const;
 using testing::DoDefault;
 using testing::Eq;
 using testing::Lt;
 using testing::MockFunction;
 using testing::Ref;
 using testing::Return;
 using testing::ReturnRef;
 using testing::TypedEq;

 template<typename T>
 class TemplatedCopyable {
  public:
   TemplatedCopyable() {}

   template <typename U>
   TemplatedCopyable(const U& other) {}  // NOLINT
 };

 class FooInterface {
  public:
   virtual ~FooInterface() {}

   virtual void VoidReturning(int x) = 0;

   virtual int Nullary() = 0;
   virtual bool Unary(int x) = 0;
   virtual long Binary(short x, int y) = 0;  // NOLINT
   virtual int Decimal(bool b, char c, short d, int e, long f,  // NOLINT
                       float g, double h, unsigned i, char* j,
                       const std::string& k) = 0;

   virtual bool TakesNonConstReference(int& n) = 0;  // NOLINT
   virtual std::string TakesConstReference(const int& n) = 0;
   virtual bool TakesConst(const int x) = 0;

   virtual int OverloadedOnArgumentNumber() = 0;
   virtual int OverloadedOnArgumentNumber(int n) = 0;

   virtual int OverloadedOnArgumentType(int n) = 0;
   virtual char OverloadedOnArgumentType(char c) = 0;

   virtual int OverloadedOnConstness() = 0;
   virtual char OverloadedOnConstness() const = 0;

   virtual int TypeWithHole(int (*func)()) = 0;
   virtual int TypeWithComma(const std::map<int, std::string>& a_map) = 0;
   virtual int TypeWithTemplatedCopyCtor(
       const TemplatedCopyable<int>& a_vector) = 0;

 #if GTEST_OS_WINDOWS
   STDMETHOD_(int, CTNullary)() = 0;
   STDMETHOD_(bool, CTUnary)(int x) = 0;
   STDMETHOD_(int, CTDecimal)
   (bool b, char c, short d, int e, long f,  // NOLINT
    float g, double h, unsigned i, char* j, const std::string& k) = 0;
   STDMETHOD_(char, CTConst)(int x) const = 0;
 #endif  // GTEST_OS_WINDOWS
 };

 // Const qualifiers on arguments were once (incorrectly) considered
 // significant in determining whether two virtual functions had the same
 // signature. This was fixed in Visual Studio 2008. However, the compiler
 // still emits a warning that alerts about this change in behavior.
 #ifdef _MSC_VER
 # pragma warning(push)
 # pragma warning(disable : 4373)
 #endif
 class MockFoo : public FooInterface {
  public:
   MockFoo() {}

   // Makes sure that a mock function parameter can be named.
   MOCK_METHOD1(VoidReturning, void(int n));  // NOLINT

   MOCK_METHOD0(Nullary, int());  // NOLINT

   // Makes sure that a mock function parameter can be unnamed.
   MOCK_METHOD1(Unary, bool(int));  // NOLINT
   MOCK_METHOD2(Binary, long(short, int));  // NOLINT
   MOCK_METHOD10(Decimal, int(bool, char, short, int, long, float,  // NOLINT
                              double, unsigned, char*, const std::string& str));

   MOCK_METHOD1(TakesNonConstReference, bool(int&));  // NOLINT
   MOCK_METHOD1(TakesConstReference, std::string(const int&));
   MOCK_METHOD1(TakesConst, bool(const int));  // NOLINT

   // Tests that the function return type can contain unprotected comma.
   MOCK_METHOD0(ReturnTypeWithComma, std::map<int, std::string>());
   MOCK_CONST_METHOD1(ReturnTypeWithComma,
                      std::map<int, std::string>(int));  // NOLINT

   MOCK_METHOD0(OverloadedOnArgumentNumber, int());  // NOLINT
   MOCK_METHOD1(OverloadedOnArgumentNumber, int(int));  // NOLINT

   MOCK_METHOD1(OverloadedOnArgumentType, int(int));  // NOLINT
   MOCK_METHOD1(OverloadedOnArgumentType, char(char));  // NOLINT

   MOCK_METHOD0(OverloadedOnConstness, int());  // NOLINT
   MOCK_CONST_METHOD0(OverloadedOnConstness, char());  // NOLINT

   MOCK_METHOD1(TypeWithHole, int(int (*)()));  // NOLINT
   MOCK_METHOD1(TypeWithComma,
                int(const std::map<int, std::string>&));  // NOLINT
   MOCK_METHOD1(TypeWithTemplatedCopyCtor,
                int(const TemplatedCopyable<int>&));  // NOLINT

 #if GTEST_OS_WINDOWS
   MOCK_METHOD0_WITH_CALLTYPE(STDMETHODCALLTYPE, CTNullary, int());
   MOCK_METHOD1_WITH_CALLTYPE(STDMETHODCALLTYPE, CTUnary, bool(int));
   MOCK_METHOD10_WITH_CALLTYPE(STDMETHODCALLTYPE, CTDecimal,
                               int(bool b, char c, short d, int e, long f,
                                   float g, double h, unsigned i, char* j,
                                   const std::string& k));
   MOCK_CONST_METHOD1_WITH_CALLTYPE(STDMETHODCALLTYPE, CTConst, char(int));

   // Tests that the function return type can contain unprotected comma.
   MOCK_METHOD0_WITH_CALLTYPE(STDMETHODCALLTYPE, CTReturnTypeWithComma,
                              std::map<int, std::string>());
 #endif  // GTEST_OS_WINDOWS

  private:
   GTEST_DISALLOW_COPY_AND_ASSIGN_(MockFoo);
 };
 #ifdef _MSC_VER
 # pragma warning(pop)
 #endif

 class FunctionMockerTest : public testing::Test {
  protected:
   FunctionMockerTest() : foo_(&mock_foo_) {}

   FooInterface* const foo_;
   MockFoo mock_foo_;
 };

 // Tests mocking a void-returning function.
 TEST_F(FunctionMockerTest, MocksVoidFunction) {
   EXPECT_CALL(mock_foo_, VoidReturning(Lt(100)));
   foo_->VoidReturning(0);
 }

 // Tests mocking a nullary function.
 TEST_F(FunctionMockerTest, MocksNullaryFunction) {
   EXPECT_CALL(mock_foo_, Nullary())
       .WillOnce(DoDefault())
       .WillOnce(Return(1));

   EXPECT_EQ(0, foo_->Nullary());
   EXPECT_EQ(1, foo_->Nullary());
 }

 // Tests mocking a unary function.
 TEST_F(FunctionMockerTest, MocksUnaryFunction) {
   EXPECT_CALL(mock_foo_, Unary(Eq(2)))
       .Times(2)
       .WillOnce(Return(true));

   EXPECT_TRUE(foo_->Unary(2));
   EXPECT_FALSE(foo_->Unary(2));
 }

 // Tests mocking a binary function.
 TEST_F(FunctionMockerTest, MocksBinaryFunction) {
   EXPECT_CALL(mock_foo_, Binary(2, _))
       .WillOnce(Return(3));

   EXPECT_EQ(3, foo_->Binary(2, 1));
 }

 // Tests mocking a decimal function.
 TEST_F(FunctionMockerTest, MocksDecimalFunction) {
   EXPECT_CALL(mock_foo_, Decimal(true, 'a', 0, 0, 1L, A<float>(), Lt(100), 5U,
                                  nullptr, "hi"))
       .WillOnce(Return(5));

   EXPECT_EQ(5, foo_->Decimal(true, 'a', 0, 0, 1, 0, 0, 5, nullptr, "hi"));
 }

 // Tests mocking a function that takes a non-const reference.
 TEST_F(FunctionMockerTest, MocksFunctionWithNonConstReferenceArgument) {
   int a = 0;
   EXPECT_CALL(mock_foo_, TakesNonConstReference(Ref(a)))
       .WillOnce(Return(true));

   EXPECT_TRUE(foo_->TakesNonConstReference(a));
 }

 // Tests mocking a function that takes a const reference.
 TEST_F(FunctionMockerTest, MocksFunctionWithConstReferenceArgument) {
   int a = 0;
   EXPECT_CALL(mock_foo_, TakesConstReference(Ref(a)))
       .WillOnce(Return("Hello"));

   EXPECT_EQ("Hello", foo_->TakesConstReference(a));
 }

 // Tests mocking a function that takes a const variable.
 TEST_F(FunctionMockerTest, MocksFunctionWithConstArgument) {
   EXPECT_CALL(mock_foo_, TakesConst(Lt(10)))
       .WillOnce(DoDefault());

   EXPECT_FALSE(foo_->TakesConst(5));
 }

 // Tests mocking functions overloaded on the number of arguments.
 TEST_F(FunctionMockerTest, MocksFunctionsOverloadedOnArgumentNumber) {
   EXPECT_CALL(mock_foo_, OverloadedOnArgumentNumber())
       .WillOnce(Return(1));
   EXPECT_CALL(mock_foo_, OverloadedOnArgumentNumber(_))
       .WillOnce(Return(2));

   EXPECT_EQ(2, foo_->OverloadedOnArgumentNumber(1));
   EXPECT_EQ(1, foo_->OverloadedOnArgumentNumber());
 }

 // Tests mocking functions overloaded on the types of argument.
 TEST_F(FunctionMockerTest, MocksFunctionsOverloadedOnArgumentType) {
   EXPECT_CALL(mock_foo_, OverloadedOnArgumentType(An<int>()))
       .WillOnce(Return(1));
   EXPECT_CALL(mock_foo_, OverloadedOnArgumentType(TypedEq<char>('a')))
       .WillOnce(Return('b'));

   EXPECT_EQ(1, foo_->OverloadedOnArgumentType(0));
   EXPECT_EQ('b', foo_->OverloadedOnArgumentType('a'));
 }

 // Tests mocking functions overloaded on the const-ness of this object.
 TEST_F(FunctionMockerTest, MocksFunctionsOverloadedOnConstnessOfThis) {
   EXPECT_CALL(mock_foo_, OverloadedOnConstness());
   EXPECT_CALL(Const(mock_foo_), OverloadedOnConstness())
       .WillOnce(Return('a'));

   EXPECT_EQ(0, foo_->OverloadedOnConstness());
   EXPECT_EQ('a', Const(*foo_).OverloadedOnConstness());
 }

 TEST_F(FunctionMockerTest, MocksReturnTypeWithComma) {
   const std::map<int, std::string> a_map;
   EXPECT_CALL(mock_foo_, ReturnTypeWithComma())
       .WillOnce(Return(a_map));
   EXPECT_CALL(mock_foo_, ReturnTypeWithComma(42))
       .WillOnce(Return(a_map));

   EXPECT_EQ(a_map, mock_foo_.ReturnTypeWithComma());
   EXPECT_EQ(a_map, mock_foo_.ReturnTypeWithComma(42));
 }

 TEST_F(FunctionMockerTest, MocksTypeWithTemplatedCopyCtor) {
   EXPECT_CALL(mock_foo_, TypeWithTemplatedCopyCtor(_)).WillOnce(Return(true));
   EXPECT_TRUE(foo_->TypeWithTemplatedCopyCtor(TemplatedCopyable<int>()));
 }

 #if GTEST_OS_WINDOWS
 // Tests mocking a nullary function with calltype.
 TEST_F(FunctionMockerTest, MocksNullaryFunctionWithCallType) {
   EXPECT_CALL(mock_foo_, CTNullary())
       .WillOnce(Return(-1))
       .WillOnce(Return(0));

   EXPECT_EQ(-1, foo_->CTNullary());
   EXPECT_EQ(0, foo_->CTNullary());
 }

 // Tests mocking a unary function with calltype.
 TEST_F(FunctionMockerTest, MocksUnaryFunctionWithCallType) {
   EXPECT_CALL(mock_foo_, CTUnary(Eq(2)))
       .Times(2)
       .WillOnce(Return(true))
       .WillOnce(Return(false));

   EXPECT_TRUE(foo_->CTUnary(2));
   EXPECT_FALSE(foo_->CTUnary(2));
 }

 // Tests mocking a decimal function with calltype.
 TEST_F(FunctionMockerTest, MocksDecimalFunctionWithCallType) {
   EXPECT_CALL(mock_foo_, CTDecimal(true, 'a', 0, 0, 1L, A<float>(), Lt(100), 5U,
                                    nullptr, "hi"))
       .WillOnce(Return(10));

   EXPECT_EQ(10, foo_->CTDecimal(true, 'a', 0, 0, 1, 0, 0, 5, nullptr, "hi"));
 }

 // Tests mocking functions overloaded on the const-ness of this object.
 TEST_F(FunctionMockerTest, MocksFunctionsConstFunctionWithCallType) {
   EXPECT_CALL(Const(mock_foo_), CTConst(_))
       .WillOnce(Return('a'));

   EXPECT_EQ('a', Const(*foo_).CTConst(0));
 }

 TEST_F(FunctionMockerTest, MocksReturnTypeWithCommaAndCallType) {
   const std::map<int, std::string> a_map;
   EXPECT_CALL(mock_foo_, CTReturnTypeWithComma())
       .WillOnce(Return(a_map));

   EXPECT_EQ(a_map, mock_foo_.CTReturnTypeWithComma());
 }

 #endif  // GTEST_OS_WINDOWS

 class MockB {
  public:
   MockB() {}

   MOCK_METHOD0(DoB, void());

  private:
   GTEST_DISALLOW_COPY_AND_ASSIGN_(MockB);
 };

 // Tests that functions with no EXPECT_CALL() ruls can be called any
 // number of times.
 TEST(ExpectCallTest, UnmentionedFunctionCanBeCalledAnyNumberOfTimes) {
   {
     MockB b;
   }

   {
     MockB b;
     b.DoB();
   }

   {
     MockB b;
     b.DoB();
     b.DoB();
   }
 }

 // Tests mocking template interfaces.

 template <typename T>
 class StackInterface {
  public:
   virtual ~StackInterface() {}

   // Template parameter appears in function parameter.
   virtual void Push(const T& value) = 0;
   virtual void Pop() = 0;
   virtual int GetSize() const = 0;
   // Template parameter appears in function return type.
   virtual const T& GetTop() const = 0;
 };

 template <typename T>
 class MockStack : public StackInterface<T> {
  public:
   MockStack() {}

   MOCK_METHOD1_T(Push, void(const T& elem));
   MOCK_METHOD0_T(Pop, void());
   MOCK_CONST_METHOD0_T(GetSize, int());  // NOLINT
   MOCK_CONST_METHOD0_T(GetTop, const T&());

   // Tests that the function return type can contain unprotected comma.
   MOCK_METHOD0_T(ReturnTypeWithComma, std::map<int, int>());
   MOCK_CONST_METHOD1_T(ReturnTypeWithComma, std::map<int, int>(int));  // NOLINT

  private:
   GTEST_DISALLOW_COPY_AND_ASSIGN_(MockStack);
 };

 // Tests that template mock works.
 TEST(TemplateMockTest, Works) {
   MockStack<int> mock;

   EXPECT_CALL(mock, GetSize())
       .WillOnce(Return(0))
       .WillOnce(Return(1))
       .WillOnce(Return(0));
   EXPECT_CALL(mock, Push(_));
   int n = 5;
   EXPECT_CALL(mock, GetTop())
       .WillOnce(ReturnRef(n));
   EXPECT_CALL(mock, Pop())
       .Times(AnyNumber());

   EXPECT_EQ(0, mock.GetSize());
   mock.Push(5);
   EXPECT_EQ(1, mock.GetSize());
   EXPECT_EQ(5, mock.GetTop());
   mock.Pop();
   EXPECT_EQ(0, mock.GetSize());
 }

 TEST(TemplateMockTest, MethodWithCommaInReturnTypeWorks) {
   MockStack<int> mock;

   const std::map<int, int> a_map;
   EXPECT_CALL(mock, ReturnTypeWithComma())
       .WillOnce(Return(a_map));
   EXPECT_CALL(mock, ReturnTypeWithComma(1))
       .WillOnce(Return(a_map));

   EXPECT_EQ(a_map, mock.ReturnTypeWithComma());
   EXPECT_EQ(a_map, mock.ReturnTypeWithComma(1));
 }

 #if GTEST_OS_WINDOWS
 // Tests mocking template interfaces with calltype.

 template <typename T>
 class StackInterfaceWithCallType {
  public:
   virtual ~StackInterfaceWithCallType() {}

   // Template parameter appears in function parameter.
   STDMETHOD_(void, Push)(const T& value) = 0;
   STDMETHOD_(void, Pop)() = 0;
   STDMETHOD_(int, GetSize)() const = 0;
   // Template parameter appears in function return type.
   STDMETHOD_(const T&, GetTop)() const = 0;
 };

 template <typename T>
 class MockStackWithCallType : public StackInterfaceWithCallType<T> {
  public:
   MockStackWithCallType() {}

   MOCK_METHOD1_T_WITH_CALLTYPE(STDMETHODCALLTYPE, Push, void(const T& elem));
   MOCK_METHOD0_T_WITH_CALLTYPE(STDMETHODCALLTYPE, Pop, void());
   MOCK_CONST_METHOD0_T_WITH_CALLTYPE(STDMETHODCALLTYPE, GetSize, int());
   MOCK_CONST_METHOD0_T_WITH_CALLTYPE(STDMETHODCALLTYPE, GetTop, const T&());

  private:
   GTEST_DISALLOW_COPY_AND_ASSIGN_(MockStackWithCallType);
 };

 // Tests that template mock with calltype works.
 TEST(TemplateMockTestWithCallType, Works) {
   MockStackWithCallType<int> mock;

   EXPECT_CALL(mock, GetSize())
       .WillOnce(Return(0))
       .WillOnce(Return(1))
       .WillOnce(Return(0));
   EXPECT_CALL(mock, Push(_));
   int n = 5;
   EXPECT_CALL(mock, GetTop())
       .WillOnce(ReturnRef(n));
   EXPECT_CALL(mock, Pop())
       .Times(AnyNumber());

   EXPECT_EQ(0, mock.GetSize());
   mock.Push(5);
   EXPECT_EQ(1, mock.GetSize());
   EXPECT_EQ(5, mock.GetTop());
   mock.Pop();
   EXPECT_EQ(0, mock.GetSize());
 }
 #endif  // GTEST_OS_WINDOWS

 #define MY_MOCK_METHODS1_ \
     MOCK_METHOD0(Overloaded, void()); \
     MOCK_CONST_METHOD1(Overloaded, int(int n)); \
     MOCK_METHOD2(Overloaded, bool(bool f, int n))

 class MockOverloadedOnArgNumber {
  public:
   MockOverloadedOnArgNumber() {}

   MY_MOCK_METHODS1_;

  private:
   GTEST_DISALLOW_COPY_AND_ASSIGN_(MockOverloadedOnArgNumber);
 };

 TEST(OverloadedMockMethodTest, CanOverloadOnArgNumberInMacroBody) {
   MockOverloadedOnArgNumber mock;
   EXPECT_CALL(mock, Overloaded());
   EXPECT_CALL(mock, Overloaded(1)).WillOnce(Return(2));
   EXPECT_CALL(mock, Overloaded(true, 1)).WillOnce(Return(true));

   mock.Overloaded();
   EXPECT_EQ(2, mock.Overloaded(1));
   EXPECT_TRUE(mock.Overloaded(true, 1));
 }

 #define MY_MOCK_METHODS2_ \
     MOCK_CONST_METHOD1(Overloaded, int(int n)); \
     MOCK_METHOD1(Overloaded, int(int n))

 class MockOverloadedOnConstness {
  public:
   MockOverloadedOnConstness() {}

   MY_MOCK_METHODS2_;

  private:
   GTEST_DISALLOW_COPY_AND_ASSIGN_(MockOverloadedOnConstness);
 };

 TEST(OverloadedMockMethodTest, CanOverloadOnConstnessInMacroBody) {
   MockOverloadedOnConstness mock;
   const MockOverloadedOnConstness* const_mock = &mock;
   EXPECT_CALL(mock, Overloaded(1)).WillOnce(Return(2));
   EXPECT_CALL(*const_mock, Overloaded(1)).WillOnce(Return(3));

   EXPECT_EQ(2, mock.Overloaded(1));
   EXPECT_EQ(3, const_mock->Overloaded(1));
 }

 TEST(MockFunctionTest, WorksForVoidNullary) {
   MockFunction<void()> foo;
   EXPECT_CALL(foo, Call());
   foo.Call();
 }

 TEST(MockFunctionTest, WorksForNonVoidNullary) {
   MockFunction<int()> foo;
   EXPECT_CALL(foo, Call())
       .WillOnce(Return(1))
       .WillOnce(Return(2));
   EXPECT_EQ(1, foo.Call());
   EXPECT_EQ(2, foo.Call());
 }

 TEST(MockFunctionTest, WorksForVoidUnary) {
   MockFunction<void(int)> foo;
   EXPECT_CALL(foo, Call(1));
   foo.Call(1);
 }

 TEST(MockFunctionTest, WorksForNonVoidBinary) {
   MockFunction<int(bool, int)> foo;
   EXPECT_CALL(foo, Call(false, 42))
       .WillOnce(Return(1))
       .WillOnce(Return(2));
   EXPECT_CALL(foo, Call(true, Ge(100)))
       .WillOnce(Return(3));
   EXPECT_EQ(1, foo.Call(false, 42));
   EXPECT_EQ(2, foo.Call(false, 42));
   EXPECT_EQ(3, foo.Call(true, 120));
 }

 TEST(MockFunctionTest, WorksFor10Arguments) {
   MockFunction<int(bool a0, char a1, int a2, int a3, int a4,
                    int a5, int a6, char a7, int a8, bool a9)> foo;
   EXPECT_CALL(foo, Call(_, 'a', _, _, _, _, _, _, _, _))
       .WillOnce(Return(1))
       .WillOnce(Return(2));
   EXPECT_EQ(1, foo.Call(false, 'a', 0, 0, 0, 0, 0, 'b', 0, true));
   EXPECT_EQ(2, foo.Call(true, 'a', 0, 0, 0, 0, 0, 'b', 1, false));
 }

 TEST(MockFunctionTest, AsStdFunction) {
   MockFunction<int(int)> foo;
   auto call = [](const std::function<int(int)> &f, int i) {
     return f(i);
   };
   EXPECT_CALL(foo, Call(1)).WillOnce(Return(-1));
   EXPECT_CALL(foo, Call(2)).WillOnce(Return(-2));
   EXPECT_EQ(-1, call(foo.AsStdFunction(), 1));
   EXPECT_EQ(-2, call(foo.AsStdFunction(), 2));
 }

 TEST(MockFunctionTest, AsStdFunctionReturnsReference) {
   MockFunction<int&()> foo;
   int value = 1;
   EXPECT_CALL(foo, Call()).WillOnce(ReturnRef(value));
   int& ref = foo.AsStdFunction()();
   EXPECT_EQ(1, ref);
   value = 2;
   EXPECT_EQ(2, ref);
 }

 TEST(MockFunctionTest, AsStdFunctionWithReferenceParameter) {
   MockFunction<int(int &)> foo;
   auto call = [](const std::function<int(int& )> &f, int &i) {
     return f(i);
   };
   int i = 42;
   EXPECT_CALL(foo, Call(i)).WillOnce(Return(-1));
   EXPECT_EQ(-1, call(foo.AsStdFunction(), i));
 }


 struct MockMethodSizes0 {
   MOCK_METHOD0(func, void());
 };
 struct MockMethodSizes1 {
   MOCK_METHOD1(func, void(int));
 };
 struct MockMethodSizes2 {
   MOCK_METHOD2(func, void(int, int));
 };
 struct MockMethodSizes3 {
   MOCK_METHOD3(func, void(int, int, int));
 };
 struct MockMethodSizes4 {
   MOCK_METHOD4(func, void(int, int, int, int));
 };

 TEST(MockFunctionTest, MockMethodSizeOverhead) {
   EXPECT_EQ(sizeof(MockMethodSizes0), sizeof(MockMethodSizes1));
   EXPECT_EQ(sizeof(MockMethodSizes0), sizeof(MockMethodSizes2));
   EXPECT_EQ(sizeof(MockMethodSizes0), sizeof(MockMethodSizes3));
   EXPECT_EQ(sizeof(MockMethodSizes0), sizeof(MockMethodSizes4));
 }

 }  // namespace gmock_generated_function_mockers_test
 }  // namespace testing
	// Copyright 2007, 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.


	// Google Mock - a framework for writing C++ mock classes.
	//
	// This file tests the function mocker classes.

	#include "gmock/gmock-generated-function-mockers.h"

	#if GTEST_OS_WINDOWS
	// MSDN says the header file to be included for STDMETHOD is BaseTyps.h but
	// we are getting compiler errors if we use basetyps.h, hence including
	// objbase.h for definition of STDMETHOD.
	# include <objbase.h>
	#endif // GTEST_OS_WINDOWS

	#include <map>
	#include <string>
	#include "gmock/gmock.h"
	#include "gtest/gtest.h"

	namespace testing {
	namespace gmock_generated_function_mockers_test {

	using testing::_;
	using testing::A;
	using testing::An;
	using testing::AnyNumber;
	using testing::Const;
	using testing::DoDefault;
	using testing::Eq;
	using testing::Lt;
	using testing::MockFunction;
	using testing::Ref;
	using testing::Return;
	using testing::ReturnRef;
	using testing::TypedEq;

	template<typename T>
	class TemplatedCopyable {
	public:
	TemplatedCopyable() {}

	template <typename U>
	TemplatedCopyable(const U& other) {} // NOLINT
	};

	class FooInterface {
	public:
	virtual ~FooInterface() {}

	virtual void VoidReturning(int x) = 0;

	virtual int Nullary() = 0;
	virtual bool Unary(int x) = 0;
	virtual long Binary(short x, int y) = 0; // NOLINT
	virtual int Decimal(bool b, char c, short d, int e, long f, // NOLINT
	float g, double h, unsigned i, char* j,
	const std::string& k) = 0;

	virtual bool TakesNonConstReference(int& n) = 0; // NOLINT
	virtual std::string TakesConstReference(const int& n) = 0;
	virtual bool TakesConst(const int x) = 0;

	virtual int OverloadedOnArgumentNumber() = 0;
	virtual int OverloadedOnArgumentNumber(int n) = 0;

	virtual int OverloadedOnArgumentType(int n) = 0;
	virtual char OverloadedOnArgumentType(char c) = 0;

	virtual int OverloadedOnConstness() = 0;
	virtual char OverloadedOnConstness() const = 0;

	virtual int TypeWithHole(int (*func)()) = 0;
	virtual int TypeWithComma(const std::map<int, std::string>& a_map) = 0;
	virtual int TypeWithTemplatedCopyCtor(
	const TemplatedCopyable<int>& a_vector) = 0;

	#if GTEST_OS_WINDOWS
	STDMETHOD_(int, CTNullary)() = 0;
	STDMETHOD_(bool, CTUnary)(int x) = 0;
	STDMETHOD_(int, CTDecimal)
	(bool b, char c, short d, int e, long f, // NOLINT
	float g, double h, unsigned i, char* j, const std::string& k) = 0;
	STDMETHOD_(char, CTConst)(int x) const = 0;
	#endif // GTEST_OS_WINDOWS
	};

	// Const qualifiers on arguments were once (incorrectly) considered
	// significant in determining whether two virtual functions had the same
	// signature. This was fixed in Visual Studio 2008. However, the compiler
	// still emits a warning that alerts about this change in behavior.
	#ifdef _MSC_VER
	# pragma warning(push)
	# pragma warning(disable : 4373)
	#endif
	class MockFoo : public FooInterface {
	public:
	MockFoo() {}

	// Makes sure that a mock function parameter can be named.
	MOCK_METHOD1(VoidReturning, void(int n)); // NOLINT

	MOCK_METHOD0(Nullary, int()); // NOLINT

	// Makes sure that a mock function parameter can be unnamed.
	MOCK_METHOD1(Unary, bool(int)); // NOLINT
	MOCK_METHOD2(Binary, long(short, int)); // NOLINT
	MOCK_METHOD10(Decimal, int(bool, char, short, int, long, float, // NOLINT
	double, unsigned, char*, const std::string& str));

	MOCK_METHOD1(TakesNonConstReference, bool(int&)); // NOLINT
	MOCK_METHOD1(TakesConstReference, std::string(const int&));
	MOCK_METHOD1(TakesConst, bool(const int)); // NOLINT

	// Tests that the function return type can contain unprotected comma.
	MOCK_METHOD0(ReturnTypeWithComma, std::map<int, std::string>());
	MOCK_CONST_METHOD1(ReturnTypeWithComma,
	std::map<int, std::string>(int)); // NOLINT

	MOCK_METHOD0(OverloadedOnArgumentNumber, int()); // NOLINT
	MOCK_METHOD1(OverloadedOnArgumentNumber, int(int)); // NOLINT

	MOCK_METHOD1(OverloadedOnArgumentType, int(int)); // NOLINT
	MOCK_METHOD1(OverloadedOnArgumentType, char(char)); // NOLINT

	MOCK_METHOD0(OverloadedOnConstness, int()); // NOLINT
	MOCK_CONST_METHOD0(OverloadedOnConstness, char()); // NOLINT

	MOCK_METHOD1(TypeWithHole, int(int (*)())); // NOLINT
	MOCK_METHOD1(TypeWithComma,
	int(const std::map<int, std::string>&)); // NOLINT
	MOCK_METHOD1(TypeWithTemplatedCopyCtor,
	int(const TemplatedCopyable<int>&)); // NOLINT

	#if GTEST_OS_WINDOWS
	MOCK_METHOD0_WITH_CALLTYPE(STDMETHODCALLTYPE, CTNullary, int());
	MOCK_METHOD1_WITH_CALLTYPE(STDMETHODCALLTYPE, CTUnary, bool(int));
	MOCK_METHOD10_WITH_CALLTYPE(STDMETHODCALLTYPE, CTDecimal,
	int(bool b, char c, short d, int e, long f,
	float g, double h, unsigned i, char* j,
	const std::string& k));
	MOCK_CONST_METHOD1_WITH_CALLTYPE(STDMETHODCALLTYPE, CTConst, char(int));

	// Tests that the function return type can contain unprotected comma.
	MOCK_METHOD0_WITH_CALLTYPE(STDMETHODCALLTYPE, CTReturnTypeWithComma,
	std::map<int, std::string>());
	#endif // GTEST_OS_WINDOWS

	private:
	GTEST_DISALLOW_COPY_AND_ASSIGN_(MockFoo);
	};
	#ifdef _MSC_VER
	# pragma warning(pop)
	#endif

	class FunctionMockerTest : public testing::Test {
	protected:
	FunctionMockerTest() : foo_(&mock_foo_) {}

	FooInterface* const foo_;
	MockFoo mock_foo_;
	};

	// Tests mocking a void-returning function.
	TEST_F(FunctionMockerTest, MocksVoidFunction) {
	EXPECT_CALL(mock_foo_, VoidReturning(Lt(100)));
	foo_->VoidReturning(0);
	}

	// Tests mocking a nullary function.
	TEST_F(FunctionMockerTest, MocksNullaryFunction) {
	EXPECT_CALL(mock_foo_, Nullary())
	.WillOnce(DoDefault())
	.WillOnce(Return(1));

	EXPECT_EQ(0, foo_->Nullary());
	EXPECT_EQ(1, foo_->Nullary());
	}

	// Tests mocking a unary function.
	TEST_F(FunctionMockerTest, MocksUnaryFunction) {
	EXPECT_CALL(mock_foo_, Unary(Eq(2)))
	.Times(2)
	.WillOnce(Return(true));

	EXPECT_TRUE(foo_->Unary(2));
	EXPECT_FALSE(foo_->Unary(2));
	}

	// Tests mocking a binary function.
	TEST_F(FunctionMockerTest, MocksBinaryFunction) {
	EXPECT_CALL(mock_foo_, Binary(2, _))
	.WillOnce(Return(3));

	EXPECT_EQ(3, foo_->Binary(2, 1));
	}

	// Tests mocking a decimal function.
	TEST_F(FunctionMockerTest, MocksDecimalFunction) {
	EXPECT_CALL(mock_foo_, Decimal(true, 'a', 0, 0, 1L, A<float>(), Lt(100), 5U,
	nullptr, "hi"))
	.WillOnce(Return(5));

	EXPECT_EQ(5, foo_->Decimal(true, 'a', 0, 0, 1, 0, 0, 5, nullptr, "hi"));
	}

	// Tests mocking a function that takes a non-const reference.
	TEST_F(FunctionMockerTest, MocksFunctionWithNonConstReferenceArgument) {
	int a = 0;
	EXPECT_CALL(mock_foo_, TakesNonConstReference(Ref(a)))
	.WillOnce(Return(true));

	EXPECT_TRUE(foo_->TakesNonConstReference(a));
	}

	// Tests mocking a function that takes a const reference.
	TEST_F(FunctionMockerTest, MocksFunctionWithConstReferenceArgument) {
	int a = 0;
	EXPECT_CALL(mock_foo_, TakesConstReference(Ref(a)))
	.WillOnce(Return("Hello"));

	EXPECT_EQ("Hello", foo_->TakesConstReference(a));
	}

	// Tests mocking a function that takes a const variable.
	TEST_F(FunctionMockerTest, MocksFunctionWithConstArgument) {
	EXPECT_CALL(mock_foo_, TakesConst(Lt(10)))
	.WillOnce(DoDefault());

	EXPECT_FALSE(foo_->TakesConst(5));
	}

	// Tests mocking functions overloaded on the number of arguments.
	TEST_F(FunctionMockerTest, MocksFunctionsOverloadedOnArgumentNumber) {
	EXPECT_CALL(mock_foo_, OverloadedOnArgumentNumber())
	.WillOnce(Return(1));
	EXPECT_CALL(mock_foo_, OverloadedOnArgumentNumber(_))
	.WillOnce(Return(2));

	EXPECT_EQ(2, foo_->OverloadedOnArgumentNumber(1));
	EXPECT_EQ(1, foo_->OverloadedOnArgumentNumber());
	}

	// Tests mocking functions overloaded on the types of argument.
	TEST_F(FunctionMockerTest, MocksFunctionsOverloadedOnArgumentType) {
	EXPECT_CALL(mock_foo_, OverloadedOnArgumentType(An<int>()))
	.WillOnce(Return(1));
	EXPECT_CALL(mock_foo_, OverloadedOnArgumentType(TypedEq<char>('a')))
	.WillOnce(Return('b'));

	EXPECT_EQ(1, foo_->OverloadedOnArgumentType(0));
	EXPECT_EQ('b', foo_->OverloadedOnArgumentType('a'));
	}

	// Tests mocking functions overloaded on the const-ness of this object.
	TEST_F(FunctionMockerTest, MocksFunctionsOverloadedOnConstnessOfThis) {
	EXPECT_CALL(mock_foo_, OverloadedOnConstness());
	EXPECT_CALL(Const(mock_foo_), OverloadedOnConstness())
	.WillOnce(Return('a'));

	EXPECT_EQ(0, foo_->OverloadedOnConstness());
	EXPECT_EQ('a', Const(*foo_).OverloadedOnConstness());
	}

	TEST_F(FunctionMockerTest, MocksReturnTypeWithComma) {
	const std::map<int, std::string> a_map;
	EXPECT_CALL(mock_foo_, ReturnTypeWithComma())
	.WillOnce(Return(a_map));
	EXPECT_CALL(mock_foo_, ReturnTypeWithComma(42))
	.WillOnce(Return(a_map));

	EXPECT_EQ(a_map, mock_foo_.ReturnTypeWithComma());
	EXPECT_EQ(a_map, mock_foo_.ReturnTypeWithComma(42));
	}

	TEST_F(FunctionMockerTest, MocksTypeWithTemplatedCopyCtor) {
	EXPECT_CALL(mock_foo_, TypeWithTemplatedCopyCtor(_)).WillOnce(Return(true));
	EXPECT_TRUE(foo_->TypeWithTemplatedCopyCtor(TemplatedCopyable<int>()));
	}

	#if GTEST_OS_WINDOWS
	// Tests mocking a nullary function with calltype.
	TEST_F(FunctionMockerTest, MocksNullaryFunctionWithCallType) {
	EXPECT_CALL(mock_foo_, CTNullary())
	.WillOnce(Return(-1))
	.WillOnce(Return(0));

	EXPECT_EQ(-1, foo_->CTNullary());
	EXPECT_EQ(0, foo_->CTNullary());
	}

	// Tests mocking a unary function with calltype.
	TEST_F(FunctionMockerTest, MocksUnaryFunctionWithCallType) {
	EXPECT_CALL(mock_foo_, CTUnary(Eq(2)))
	.Times(2)
	.WillOnce(Return(true))
	.WillOnce(Return(false));

	EXPECT_TRUE(foo_->CTUnary(2));
	EXPECT_FALSE(foo_->CTUnary(2));
	}

	// Tests mocking a decimal function with calltype.
	TEST_F(FunctionMockerTest, MocksDecimalFunctionWithCallType) {
	EXPECT_CALL(mock_foo_, CTDecimal(true, 'a', 0, 0, 1L, A<float>(), Lt(100), 5U,
	nullptr, "hi"))
	.WillOnce(Return(10));

	EXPECT_EQ(10, foo_->CTDecimal(true, 'a', 0, 0, 1, 0, 0, 5, nullptr, "hi"));
	}

	// Tests mocking functions overloaded on the const-ness of this object.
	TEST_F(FunctionMockerTest, MocksFunctionsConstFunctionWithCallType) {
	EXPECT_CALL(Const(mock_foo_), CTConst(_))
	.WillOnce(Return('a'));

	EXPECT_EQ('a', Const(*foo_).CTConst(0));
	}

	TEST_F(FunctionMockerTest, MocksReturnTypeWithCommaAndCallType) {
	const std::map<int, std::string> a_map;
	EXPECT_CALL(mock_foo_, CTReturnTypeWithComma())
	.WillOnce(Return(a_map));

	EXPECT_EQ(a_map, mock_foo_.CTReturnTypeWithComma());
	}

	#endif // GTEST_OS_WINDOWS

	class MockB {
	public:
	MockB() {}

	MOCK_METHOD0(DoB, void());

	private:
	GTEST_DISALLOW_COPY_AND_ASSIGN_(MockB);
	};

	// Tests that functions with no EXPECT_CALL() ruls can be called any
	// number of times.
	TEST(ExpectCallTest, UnmentionedFunctionCanBeCalledAnyNumberOfTimes) {
	{
	MockB b;
	}

	{
	MockB b;
	b.DoB();
	}

	{
	MockB b;
	b.DoB();
	b.DoB();
	}
	}

	// Tests mocking template interfaces.

	template <typename T>
	class StackInterface {
	public:
	virtual ~StackInterface() {}

	// Template parameter appears in function parameter.
	virtual void Push(const T& value) = 0;
	virtual void Pop() = 0;
	virtual int GetSize() const = 0;
	// Template parameter appears in function return type.
	virtual const T& GetTop() const = 0;
	};

	template <typename T>
	class MockStack : public StackInterface<T> {
	public:
	MockStack() {}

	MOCK_METHOD1_T(Push, void(const T& elem));
	MOCK_METHOD0_T(Pop, void());
	MOCK_CONST_METHOD0_T(GetSize, int()); // NOLINT
	MOCK_CONST_METHOD0_T(GetTop, const T&());

	// Tests that the function return type can contain unprotected comma.
	MOCK_METHOD0_T(ReturnTypeWithComma, std::map<int, int>());
	MOCK_CONST_METHOD1_T(ReturnTypeWithComma, std::map<int, int>(int)); // NOLINT

	private:
	GTEST_DISALLOW_COPY_AND_ASSIGN_(MockStack);
	};

	// Tests that template mock works.
	TEST(TemplateMockTest, Works) {
	MockStack<int> mock;

	EXPECT_CALL(mock, GetSize())
	.WillOnce(Return(0))
	.WillOnce(Return(1))
	.WillOnce(Return(0));
	EXPECT_CALL(mock, Push(_));
	int n = 5;
	EXPECT_CALL(mock, GetTop())
	.WillOnce(ReturnRef(n));
	EXPECT_CALL(mock, Pop())
	.Times(AnyNumber());

	EXPECT_EQ(0, mock.GetSize());
	mock.Push(5);
	EXPECT_EQ(1, mock.GetSize());
	EXPECT_EQ(5, mock.GetTop());
	mock.Pop();
	EXPECT_EQ(0, mock.GetSize());
	}

	TEST(TemplateMockTest, MethodWithCommaInReturnTypeWorks) {
	MockStack<int> mock;

	const std::map<int, int> a_map;
	EXPECT_CALL(mock, ReturnTypeWithComma())
	.WillOnce(Return(a_map));
	EXPECT_CALL(mock, ReturnTypeWithComma(1))
	.WillOnce(Return(a_map));

	EXPECT_EQ(a_map, mock.ReturnTypeWithComma());
	EXPECT_EQ(a_map, mock.ReturnTypeWithComma(1));
	}

	#if GTEST_OS_WINDOWS
	// Tests mocking template interfaces with calltype.

	template <typename T>
	class StackInterfaceWithCallType {
	public:
	virtual ~StackInterfaceWithCallType() {}

	// Template parameter appears in function parameter.
	STDMETHOD_(void, Push)(const T& value) = 0;
	STDMETHOD_(void, Pop)() = 0;
	STDMETHOD_(int, GetSize)() const = 0;
	// Template parameter appears in function return type.
	STDMETHOD_(const T&, GetTop)() const = 0;
	};

	template <typename T>
	class MockStackWithCallType : public StackInterfaceWithCallType<T> {
	public:
	MockStackWithCallType() {}

	MOCK_METHOD1_T_WITH_CALLTYPE(STDMETHODCALLTYPE, Push, void(const T& elem));
	MOCK_METHOD0_T_WITH_CALLTYPE(STDMETHODCALLTYPE, Pop, void());
	MOCK_CONST_METHOD0_T_WITH_CALLTYPE(STDMETHODCALLTYPE, GetSize, int());
	MOCK_CONST_METHOD0_T_WITH_CALLTYPE(STDMETHODCALLTYPE, GetTop, const T&());

	private:
	GTEST_DISALLOW_COPY_AND_ASSIGN_(MockStackWithCallType);
	};

	// Tests that template mock with calltype works.
	TEST(TemplateMockTestWithCallType, Works) {
	MockStackWithCallType<int> mock;

	EXPECT_CALL(mock, GetSize())
	.WillOnce(Return(0))
	.WillOnce(Return(1))
	.WillOnce(Return(0));
	EXPECT_CALL(mock, Push(_));
	int n = 5;
	EXPECT_CALL(mock, GetTop())
	.WillOnce(ReturnRef(n));
	EXPECT_CALL(mock, Pop())
	.Times(AnyNumber());

	EXPECT_EQ(0, mock.GetSize());
	mock.Push(5);
	EXPECT_EQ(1, mock.GetSize());
	EXPECT_EQ(5, mock.GetTop());
	mock.Pop();
	EXPECT_EQ(0, mock.GetSize());
	}
	#endif // GTEST_OS_WINDOWS

	#define MY_MOCK_METHODS1_ \
	MOCK_METHOD0(Overloaded, void()); \
	MOCK_CONST_METHOD1(Overloaded, int(int n)); \
	MOCK_METHOD2(Overloaded, bool(bool f, int n))

	class MockOverloadedOnArgNumber {
	public:
	MockOverloadedOnArgNumber() {}

	MY_MOCK_METHODS1_;

	private:
	GTEST_DISALLOW_COPY_AND_ASSIGN_(MockOverloadedOnArgNumber);
	};

	TEST(OverloadedMockMethodTest, CanOverloadOnArgNumberInMacroBody) {
	MockOverloadedOnArgNumber mock;
	EXPECT_CALL(mock, Overloaded());
	EXPECT_CALL(mock, Overloaded(1)).WillOnce(Return(2));
	EXPECT_CALL(mock, Overloaded(true, 1)).WillOnce(Return(true));

	mock.Overloaded();
	EXPECT_EQ(2, mock.Overloaded(1));
	EXPECT_TRUE(mock.Overloaded(true, 1));
	}

	#define MY_MOCK_METHODS2_ \
	MOCK_CONST_METHOD1(Overloaded, int(int n)); \
	MOCK_METHOD1(Overloaded, int(int n))

	class MockOverloadedOnConstness {
	public:
	MockOverloadedOnConstness() {}

	MY_MOCK_METHODS2_;

	private:
	GTEST_DISALLOW_COPY_AND_ASSIGN_(MockOverloadedOnConstness);
	};

	TEST(OverloadedMockMethodTest, CanOverloadOnConstnessInMacroBody) {
	MockOverloadedOnConstness mock;
	const MockOverloadedOnConstness* const_mock = &mock;
	EXPECT_CALL(mock, Overloaded(1)).WillOnce(Return(2));
	EXPECT_CALL(*const_mock, Overloaded(1)).WillOnce(Return(3));

	EXPECT_EQ(2, mock.Overloaded(1));
	EXPECT_EQ(3, const_mock->Overloaded(1));
	}

	TEST(MockFunctionTest, WorksForVoidNullary) {
	MockFunction<void()> foo;
	EXPECT_CALL(foo, Call());
	foo.Call();
	}

	TEST(MockFunctionTest, WorksForNonVoidNullary) {
	MockFunction<int()> foo;
	EXPECT_CALL(foo, Call())
	.WillOnce(Return(1))
	.WillOnce(Return(2));
	EXPECT_EQ(1, foo.Call());
	EXPECT_EQ(2, foo.Call());
	}

	TEST(MockFunctionTest, WorksForVoidUnary) {
	MockFunction<void(int)> foo;
	EXPECT_CALL(foo, Call(1));
	foo.Call(1);
	}

	TEST(MockFunctionTest, WorksForNonVoidBinary) {
	MockFunction<int(bool, int)> foo;
	EXPECT_CALL(foo, Call(false, 42))
	.WillOnce(Return(1))
	.WillOnce(Return(2));
	EXPECT_CALL(foo, Call(true, Ge(100)))
	.WillOnce(Return(3));
	EXPECT_EQ(1, foo.Call(false, 42));
	EXPECT_EQ(2, foo.Call(false, 42));
	EXPECT_EQ(3, foo.Call(true, 120));
	}

	TEST(MockFunctionTest, WorksFor10Arguments) {
	MockFunction<int(bool a0, char a1, int a2, int a3, int a4,
	int a5, int a6, char a7, int a8, bool a9)> foo;
	EXPECT_CALL(foo, Call(_, 'a', _, _, _, _, _, _, _, _))
	.WillOnce(Return(1))
	.WillOnce(Return(2));
	EXPECT_EQ(1, foo.Call(false, 'a', 0, 0, 0, 0, 0, 'b', 0, true));
	EXPECT_EQ(2, foo.Call(true, 'a', 0, 0, 0, 0, 0, 'b', 1, false));
	}

	TEST(MockFunctionTest, AsStdFunction) {
	MockFunction<int(int)> foo;
	auto call = [](const std::function<int(int)> &f, int i) {
	return f(i);
	};
	EXPECT_CALL(foo, Call(1)).WillOnce(Return(-1));
	EXPECT_CALL(foo, Call(2)).WillOnce(Return(-2));
	EXPECT_EQ(-1, call(foo.AsStdFunction(), 1));
	EXPECT_EQ(-2, call(foo.AsStdFunction(), 2));
	}

	TEST(MockFunctionTest, AsStdFunctionReturnsReference) {
	MockFunction<int&()> foo;
	int value = 1;
	EXPECT_CALL(foo, Call()).WillOnce(ReturnRef(value));
	int& ref = foo.AsStdFunction()();
	EXPECT_EQ(1, ref);
	value = 2;
	EXPECT_EQ(2, ref);
	}

	TEST(MockFunctionTest, AsStdFunctionWithReferenceParameter) {
	MockFunction<int(int &)> foo;
	auto call = [](const std::function<int(int& )> &f, int &i) {
	return f(i);
	};
	int i = 42;
	EXPECT_CALL(foo, Call(i)).WillOnce(Return(-1));
	EXPECT_EQ(-1, call(foo.AsStdFunction(), i));
	}


	struct MockMethodSizes0 {
	MOCK_METHOD0(func, void());
	};
	struct MockMethodSizes1 {
	MOCK_METHOD1(func, void(int));
	};
	struct MockMethodSizes2 {
	MOCK_METHOD2(func, void(int, int));
	};
	struct MockMethodSizes3 {
	MOCK_METHOD3(func, void(int, int, int));
	};
	struct MockMethodSizes4 {
	MOCK_METHOD4(func, void(int, int, int, int));
	};

	TEST(MockFunctionTest, MockMethodSizeOverhead) {
	EXPECT_EQ(sizeof(MockMethodSizes0), sizeof(MockMethodSizes1));
	EXPECT_EQ(sizeof(MockMethodSizes0), sizeof(MockMethodSizes2));
	EXPECT_EQ(sizeof(MockMethodSizes0), sizeof(MockMethodSizes3));
	EXPECT_EQ(sizeof(MockMethodSizes0), sizeof(MockMethodSizes4));
	}

	} // namespace gmock_generated_function_mockers_test
	} // namespace testing