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+// 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.
+//
+// Author: wan@google.com (Zhanyong Wan)
+
+// Google Mock - a framework for writing C++ mock classes.
+//
+// This file tests the function mocker classes.
+
+#include "gmock/gmock-generated-function-mockers.h"
+
+#include <map>
+#include <string>
+#include "gmock/gmock.h"
+#include "gtest/gtest.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
+
+// There is a bug in MSVC (fixed in VS 2008) that prevents creating a
+// mock for a function with const arguments, so we don't test such
+// cases for MSVC versions older than 2008.
+#if !GTEST_OS_WINDOWS || (_MSC_VER >= 1500)
+# define GMOCK_ALLOWS_CONST_PARAM_FUNCTIONS
+#endif // !GTEST_OS_WINDOWS || (_MSC_VER >= 1500)
+
+namespace testing {
+namespace gmock_generated_function_mockers_test {
+
+using testing::internal::string;
+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;
+
+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 string& k)
+ = 0;
+
+ virtual bool TakesNonConstReference(int& n) = 0; // NOLINT
+ virtual string TakesConstReference(const int& n) = 0;
+#ifdef GMOCK_ALLOWS_CONST_PARAM_FUNCTIONS
+ virtual bool TakesConst(const int x) = 0;
+#endif // GMOCK_ALLOWS_CONST_PARAM_FUNCTIONS
+
+ 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, string>& a_map) = 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 string& k) = 0;
+ STDMETHOD_(char, CTConst)(int x) const = 0;
+#endif // GTEST_OS_WINDOWS
+};
+
+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 string& str));
+
+ MOCK_METHOD1(TakesNonConstReference, bool(int&)); // NOLINT
+ MOCK_METHOD1(TakesConstReference, string(const int&));
+#ifdef GMOCK_ALLOWS_CONST_PARAM_FUNCTIONS
+ MOCK_METHOD1(TakesConst, bool(const int)); // NOLINT
+#endif // GMOCK_ALLOWS_CONST_PARAM_FUNCTIONS
+ 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, string>&)); // 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 string& k));
+ MOCK_CONST_METHOD1_WITH_CALLTYPE(STDMETHODCALLTYPE, CTConst, char(int));
+#endif // GTEST_OS_WINDOWS
+
+ private:
+ GTEST_DISALLOW_COPY_AND_ASSIGN_(MockFoo);
+};
+
+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, NULL, "hi"))
+ .WillOnce(Return(5));
+
+ EXPECT_EQ(5, foo_->Decimal(true, 'a', 0, 0, 1, 0, 0, 5, NULL, "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));
+}
+
+#ifdef GMOCK_ALLOWS_CONST_PARAM_FUNCTIONS
+// 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));
+}
+#endif // GMOCK_ALLOWS_CONST_PARAM_FUNCTIONS
+
+// 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());
+}
+
+#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, NULL, "hi"))
+ .WillOnce(Return(10));
+
+ EXPECT_EQ(10, foo_->CTDecimal(true, 'a', 0, 0, 1, 0, 0, 5, NULL, "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));
+}
+
+#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&());
+
+ 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());
+}
+
+#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));
+}
+
+} // namespace gmock_generated_function_mockers_test
+} // namespace testing