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31 // Google Mock - a framework for writing C++ mock classes.
33 // This file tests the function mocker classes.
34 #include "gmock/gmock-function-mocker.h"
37 // MSDN says the header file to be included for STDMETHOD is BaseTyps.h but
38 // we are getting compiler errors if we use basetyps.h, hence including
39 // objbase.h for definition of STDMETHOD.
41 #endif // GTEST_OS_WINDOWS
46 #include <type_traits>
48 #include "gmock/gmock.h"
49 #include "gtest/gtest.h"
52 namespace gmock_function_mocker_test {
57 using testing::AnyNumber;
59 using testing::DoDefault;
62 using testing::MockFunction;
64 using testing::Return;
65 using testing::ReturnRef;
66 using testing::TypedEq;
69 class TemplatedCopyable {
71 TemplatedCopyable() {}
74 TemplatedCopyable(const U& other) {} // NOLINT
79 virtual ~FooInterface() {}
81 virtual void VoidReturning(int x) = 0;
83 virtual int Nullary() = 0;
84 virtual bool Unary(int x) = 0;
85 virtual long Binary(short x, int y) = 0; // NOLINT
86 virtual int Decimal(bool b, char c, short d, int e, long f, // NOLINT
87 float g, double h, unsigned i, char* j,
88 const std::string& k) = 0;
90 virtual bool TakesNonConstReference(int& n) = 0; // NOLINT
91 virtual std::string TakesConstReference(const int& n) = 0;
92 virtual bool TakesConst(const int x) = 0;
94 virtual int OverloadedOnArgumentNumber() = 0;
95 virtual int OverloadedOnArgumentNumber(int n) = 0;
97 virtual int OverloadedOnArgumentType(int n) = 0;
98 virtual char OverloadedOnArgumentType(char c) = 0;
100 virtual int OverloadedOnConstness() = 0;
101 virtual char OverloadedOnConstness() const = 0;
103 virtual int TypeWithHole(int (*func)()) = 0;
104 virtual int TypeWithComma(const std::map<int, std::string>& a_map) = 0;
105 virtual int TypeWithTemplatedCopyCtor(const TemplatedCopyable<int>&) = 0;
107 virtual int (*ReturnsFunctionPointer1(int))(bool) = 0;
108 using fn_ptr = int (*)(bool);
109 virtual fn_ptr ReturnsFunctionPointer2(int) = 0;
111 virtual int RefQualifiedConstRef() const& = 0;
112 virtual int RefQualifiedConstRefRef() const&& = 0;
113 virtual int RefQualifiedRef() & = 0;
114 virtual int RefQualifiedRefRef() && = 0;
116 virtual int RefQualifiedOverloaded() const& = 0;
117 virtual int RefQualifiedOverloaded() const&& = 0;
118 virtual int RefQualifiedOverloaded() & = 0;
119 virtual int RefQualifiedOverloaded() && = 0;
122 STDMETHOD_(int, CTNullary)() = 0;
123 STDMETHOD_(bool, CTUnary)(int x) = 0;
124 STDMETHOD_(int, CTDecimal)
125 (bool b, char c, short d, int e, long f, // NOLINT
126 float g, double h, unsigned i, char* j, const std::string& k) = 0;
127 STDMETHOD_(char, CTConst)(int x) const = 0;
128 #endif // GTEST_OS_WINDOWS
131 // Const qualifiers on arguments were once (incorrectly) considered
132 // significant in determining whether two virtual functions had the same
133 // signature. This was fixed in Visual Studio 2008. However, the compiler
134 // still emits a warning that alerts about this change in behavior.
136 # pragma warning(push)
137 # pragma warning(disable : 4373)
139 class MockFoo : public FooInterface {
143 // Makes sure that a mock function parameter can be named.
144 MOCK_METHOD(void, VoidReturning, (int n)); // NOLINT
146 MOCK_METHOD(int, Nullary, ()); // NOLINT
148 // Makes sure that a mock function parameter can be unnamed.
149 MOCK_METHOD(bool, Unary, (int)); // NOLINT
150 MOCK_METHOD(long, Binary, (short, int)); // NOLINT
151 MOCK_METHOD(int, Decimal,
152 (bool, char, short, int, long, float, // NOLINT
153 double, unsigned, char*, const std::string& str),
156 MOCK_METHOD(bool, TakesNonConstReference, (int&)); // NOLINT
157 MOCK_METHOD(std::string, TakesConstReference, (const int&));
158 MOCK_METHOD(bool, TakesConst, (const int)); // NOLINT
160 // Tests that the function return type can contain unprotected comma.
161 MOCK_METHOD((std::map<int, std::string>), ReturnTypeWithComma, (), ());
162 MOCK_METHOD((std::map<int, std::string>), ReturnTypeWithComma, (int),
165 MOCK_METHOD(int, OverloadedOnArgumentNumber, ()); // NOLINT
166 MOCK_METHOD(int, OverloadedOnArgumentNumber, (int)); // NOLINT
168 MOCK_METHOD(int, OverloadedOnArgumentType, (int)); // NOLINT
169 MOCK_METHOD(char, OverloadedOnArgumentType, (char)); // NOLINT
171 MOCK_METHOD(int, OverloadedOnConstness, (), (override)); // NOLINT
172 MOCK_METHOD(char, OverloadedOnConstness, (), (override, const)); // NOLINT
174 MOCK_METHOD(int, TypeWithHole, (int (*)()), ()); // NOLINT
175 MOCK_METHOD(int, TypeWithComma, ((const std::map<int, std::string>&)));
176 MOCK_METHOD(int, TypeWithTemplatedCopyCtor,
177 (const TemplatedCopyable<int>&)); // NOLINT
179 MOCK_METHOD(int (*)(bool), ReturnsFunctionPointer1, (int), ());
180 MOCK_METHOD(fn_ptr, ReturnsFunctionPointer2, (int), ());
183 MOCK_METHOD(int, CTNullary, (), (Calltype(STDMETHODCALLTYPE)));
184 MOCK_METHOD(bool, CTUnary, (int), (Calltype(STDMETHODCALLTYPE)));
185 MOCK_METHOD(int, CTDecimal,
186 (bool b, char c, short d, int e, long f, float g, double h,
187 unsigned i, char* j, const std::string& k),
188 (Calltype(STDMETHODCALLTYPE)));
189 MOCK_METHOD(char, CTConst, (int), (const, Calltype(STDMETHODCALLTYPE)));
190 MOCK_METHOD((std::map<int, std::string>), CTReturnTypeWithComma, (),
191 (Calltype(STDMETHODCALLTYPE)));
192 #endif // GTEST_OS_WINDOWS
194 // Test reference qualified functions.
195 MOCK_METHOD(int, RefQualifiedConstRef, (), (const, ref(&), override));
196 MOCK_METHOD(int, RefQualifiedConstRefRef, (), (const, ref(&&), override));
197 MOCK_METHOD(int, RefQualifiedRef, (), (ref(&), override));
198 MOCK_METHOD(int, RefQualifiedRefRef, (), (ref(&&), override));
200 MOCK_METHOD(int, RefQualifiedOverloaded, (), (const, ref(&), override));
201 MOCK_METHOD(int, RefQualifiedOverloaded, (), (const, ref(&&), override));
202 MOCK_METHOD(int, RefQualifiedOverloaded, (), (ref(&), override));
203 MOCK_METHOD(int, RefQualifiedOverloaded, (), (ref(&&), override));
206 GTEST_DISALLOW_COPY_AND_ASSIGN_(MockFoo);
209 class LegacyMockFoo : public FooInterface {
213 // Makes sure that a mock function parameter can be named.
214 MOCK_METHOD1(VoidReturning, void(int n)); // NOLINT
216 MOCK_METHOD0(Nullary, int()); // NOLINT
218 // Makes sure that a mock function parameter can be unnamed.
219 MOCK_METHOD1(Unary, bool(int)); // NOLINT
220 MOCK_METHOD2(Binary, long(short, int)); // NOLINT
221 MOCK_METHOD10(Decimal, int(bool, char, short, int, long, float, // NOLINT
222 double, unsigned, char*, const std::string& str));
224 MOCK_METHOD1(TakesNonConstReference, bool(int&)); // NOLINT
225 MOCK_METHOD1(TakesConstReference, std::string(const int&));
226 MOCK_METHOD1(TakesConst, bool(const int)); // NOLINT
228 // Tests that the function return type can contain unprotected comma.
229 MOCK_METHOD0(ReturnTypeWithComma, std::map<int, std::string>());
230 MOCK_CONST_METHOD1(ReturnTypeWithComma,
231 std::map<int, std::string>(int)); // NOLINT
233 MOCK_METHOD0(OverloadedOnArgumentNumber, int()); // NOLINT
234 MOCK_METHOD1(OverloadedOnArgumentNumber, int(int)); // NOLINT
236 MOCK_METHOD1(OverloadedOnArgumentType, int(int)); // NOLINT
237 MOCK_METHOD1(OverloadedOnArgumentType, char(char)); // NOLINT
239 MOCK_METHOD0(OverloadedOnConstness, int()); // NOLINT
240 MOCK_CONST_METHOD0(OverloadedOnConstness, char()); // NOLINT
242 MOCK_METHOD1(TypeWithHole, int(int (*)())); // NOLINT
243 MOCK_METHOD1(TypeWithComma,
244 int(const std::map<int, std::string>&)); // NOLINT
245 MOCK_METHOD1(TypeWithTemplatedCopyCtor,
246 int(const TemplatedCopyable<int>&)); // NOLINT
248 MOCK_METHOD1(ReturnsFunctionPointer1, int (*(int))(bool));
249 MOCK_METHOD1(ReturnsFunctionPointer2, fn_ptr(int));
252 MOCK_METHOD0_WITH_CALLTYPE(STDMETHODCALLTYPE, CTNullary, int());
253 MOCK_METHOD1_WITH_CALLTYPE(STDMETHODCALLTYPE, CTUnary, bool(int)); // NOLINT
254 MOCK_METHOD10_WITH_CALLTYPE(STDMETHODCALLTYPE, CTDecimal,
255 int(bool b, char c, short d, int e, // NOLINT
256 long f, float g, double h, // NOLINT
257 unsigned i, char* j, const std::string& k));
258 MOCK_CONST_METHOD1_WITH_CALLTYPE(STDMETHODCALLTYPE, CTConst,
259 char(int)); // NOLINT
261 // Tests that the function return type can contain unprotected comma.
262 MOCK_METHOD0_WITH_CALLTYPE(STDMETHODCALLTYPE, CTReturnTypeWithComma,
263 std::map<int, std::string>());
264 #endif // GTEST_OS_WINDOWS
266 // We can't mock these with the old macros, but we need to define them to make
268 int RefQualifiedConstRef() const& override { return 0; }
269 int RefQualifiedConstRefRef() const&& override { return 0; }
270 int RefQualifiedRef() & override { return 0; }
271 int RefQualifiedRefRef() && override { return 0; }
272 int RefQualifiedOverloaded() const& override { return 0; }
273 int RefQualifiedOverloaded() const&& override { return 0; }
274 int RefQualifiedOverloaded() & override { return 0; }
275 int RefQualifiedOverloaded() && override { return 0; }
278 GTEST_DISALLOW_COPY_AND_ASSIGN_(LegacyMockFoo);
282 # pragma warning(pop)
286 class FunctionMockerTest : public testing::Test {
288 FunctionMockerTest() : foo_(&mock_foo_) {}
290 FooInterface* const foo_;
293 using FunctionMockerTestTypes = ::testing::Types<MockFoo, LegacyMockFoo>;
294 TYPED_TEST_SUITE(FunctionMockerTest, FunctionMockerTestTypes);
296 // Tests mocking a void-returning function.
297 TYPED_TEST(FunctionMockerTest, MocksVoidFunction) {
298 EXPECT_CALL(this->mock_foo_, VoidReturning(Lt(100)));
299 this->foo_->VoidReturning(0);
302 // Tests mocking a nullary function.
303 TYPED_TEST(FunctionMockerTest, MocksNullaryFunction) {
304 EXPECT_CALL(this->mock_foo_, Nullary())
305 .WillOnce(DoDefault())
306 .WillOnce(Return(1));
308 EXPECT_EQ(0, this->foo_->Nullary());
309 EXPECT_EQ(1, this->foo_->Nullary());
312 // Tests mocking a unary function.
313 TYPED_TEST(FunctionMockerTest, MocksUnaryFunction) {
314 EXPECT_CALL(this->mock_foo_, Unary(Eq(2))).Times(2).WillOnce(Return(true));
316 EXPECT_TRUE(this->foo_->Unary(2));
317 EXPECT_FALSE(this->foo_->Unary(2));
320 // Tests mocking a binary function.
321 TYPED_TEST(FunctionMockerTest, MocksBinaryFunction) {
322 EXPECT_CALL(this->mock_foo_, Binary(2, _)).WillOnce(Return(3));
324 EXPECT_EQ(3, this->foo_->Binary(2, 1));
327 // Tests mocking a decimal function.
328 TYPED_TEST(FunctionMockerTest, MocksDecimalFunction) {
329 EXPECT_CALL(this->mock_foo_,
330 Decimal(true, 'a', 0, 0, 1L, A<float>(), Lt(100), 5U, NULL, "hi"))
331 .WillOnce(Return(5));
333 EXPECT_EQ(5, this->foo_->Decimal(true, 'a', 0, 0, 1, 0, 0, 5, nullptr, "hi"));
336 // Tests mocking a function that takes a non-const reference.
337 TYPED_TEST(FunctionMockerTest, MocksFunctionWithNonConstReferenceArgument) {
339 EXPECT_CALL(this->mock_foo_, TakesNonConstReference(Ref(a)))
340 .WillOnce(Return(true));
342 EXPECT_TRUE(this->foo_->TakesNonConstReference(a));
345 // Tests mocking a function that takes a const reference.
346 TYPED_TEST(FunctionMockerTest, MocksFunctionWithConstReferenceArgument) {
348 EXPECT_CALL(this->mock_foo_, TakesConstReference(Ref(a)))
349 .WillOnce(Return("Hello"));
351 EXPECT_EQ("Hello", this->foo_->TakesConstReference(a));
354 // Tests mocking a function that takes a const variable.
355 TYPED_TEST(FunctionMockerTest, MocksFunctionWithConstArgument) {
356 EXPECT_CALL(this->mock_foo_, TakesConst(Lt(10))).WillOnce(DoDefault());
358 EXPECT_FALSE(this->foo_->TakesConst(5));
361 // Tests mocking functions overloaded on the number of arguments.
362 TYPED_TEST(FunctionMockerTest, MocksFunctionsOverloadedOnArgumentNumber) {
363 EXPECT_CALL(this->mock_foo_, OverloadedOnArgumentNumber())
364 .WillOnce(Return(1));
365 EXPECT_CALL(this->mock_foo_, OverloadedOnArgumentNumber(_))
366 .WillOnce(Return(2));
368 EXPECT_EQ(2, this->foo_->OverloadedOnArgumentNumber(1));
369 EXPECT_EQ(1, this->foo_->OverloadedOnArgumentNumber());
372 // Tests mocking functions overloaded on the types of argument.
373 TYPED_TEST(FunctionMockerTest, MocksFunctionsOverloadedOnArgumentType) {
374 EXPECT_CALL(this->mock_foo_, OverloadedOnArgumentType(An<int>()))
375 .WillOnce(Return(1));
376 EXPECT_CALL(this->mock_foo_, OverloadedOnArgumentType(TypedEq<char>('a')))
377 .WillOnce(Return('b'));
379 EXPECT_EQ(1, this->foo_->OverloadedOnArgumentType(0));
380 EXPECT_EQ('b', this->foo_->OverloadedOnArgumentType('a'));
383 // Tests mocking functions overloaded on the const-ness of this object.
384 TYPED_TEST(FunctionMockerTest, MocksFunctionsOverloadedOnConstnessOfThis) {
385 EXPECT_CALL(this->mock_foo_, OverloadedOnConstness());
386 EXPECT_CALL(Const(this->mock_foo_), OverloadedOnConstness())
387 .WillOnce(Return('a'));
389 EXPECT_EQ(0, this->foo_->OverloadedOnConstness());
390 EXPECT_EQ('a', Const(*this->foo_).OverloadedOnConstness());
393 TYPED_TEST(FunctionMockerTest, MocksReturnTypeWithComma) {
394 const std::map<int, std::string> a_map;
395 EXPECT_CALL(this->mock_foo_, ReturnTypeWithComma()).WillOnce(Return(a_map));
396 EXPECT_CALL(this->mock_foo_, ReturnTypeWithComma(42)).WillOnce(Return(a_map));
398 EXPECT_EQ(a_map, this->mock_foo_.ReturnTypeWithComma());
399 EXPECT_EQ(a_map, this->mock_foo_.ReturnTypeWithComma(42));
402 TYPED_TEST(FunctionMockerTest, MocksTypeWithTemplatedCopyCtor) {
403 EXPECT_CALL(this->mock_foo_, TypeWithTemplatedCopyCtor(_))
404 .WillOnce(Return(true));
405 EXPECT_TRUE(this->foo_->TypeWithTemplatedCopyCtor(TemplatedCopyable<int>()));
409 // Tests mocking a nullary function with calltype.
410 TYPED_TEST(FunctionMockerTest, MocksNullaryFunctionWithCallType) {
411 EXPECT_CALL(this->mock_foo_, CTNullary())
412 .WillOnce(Return(-1))
413 .WillOnce(Return(0));
415 EXPECT_EQ(-1, this->foo_->CTNullary());
416 EXPECT_EQ(0, this->foo_->CTNullary());
419 // Tests mocking a unary function with calltype.
420 TYPED_TEST(FunctionMockerTest, MocksUnaryFunctionWithCallType) {
421 EXPECT_CALL(this->mock_foo_, CTUnary(Eq(2)))
423 .WillOnce(Return(true))
424 .WillOnce(Return(false));
426 EXPECT_TRUE(this->foo_->CTUnary(2));
427 EXPECT_FALSE(this->foo_->CTUnary(2));
430 // Tests mocking a decimal function with calltype.
431 TYPED_TEST(FunctionMockerTest, MocksDecimalFunctionWithCallType) {
432 EXPECT_CALL(this->mock_foo_, CTDecimal(true, 'a', 0, 0, 1L, A<float>(),
433 Lt(100), 5U, NULL, "hi"))
434 .WillOnce(Return(10));
436 EXPECT_EQ(10, this->foo_->CTDecimal(true, 'a', 0, 0, 1, 0, 0, 5, NULL, "hi"));
439 // Tests mocking functions overloaded on the const-ness of this object.
440 TYPED_TEST(FunctionMockerTest, MocksFunctionsConstFunctionWithCallType) {
441 EXPECT_CALL(Const(this->mock_foo_), CTConst(_)).WillOnce(Return('a'));
443 EXPECT_EQ('a', Const(*this->foo_).CTConst(0));
446 TYPED_TEST(FunctionMockerTest, MocksReturnTypeWithCommaAndCallType) {
447 const std::map<int, std::string> a_map;
448 EXPECT_CALL(this->mock_foo_, CTReturnTypeWithComma()).WillOnce(Return(a_map));
450 EXPECT_EQ(a_map, this->mock_foo_.CTReturnTypeWithComma());
453 #endif // GTEST_OS_WINDOWS
455 TEST(FunctionMockerTest, RefQualified) {
458 EXPECT_CALL(mock_foo, RefQualifiedConstRef).WillOnce(Return(1));
459 EXPECT_CALL(std::move(mock_foo), // NOLINT
460 RefQualifiedConstRefRef)
461 .WillOnce(Return(2));
462 EXPECT_CALL(mock_foo, RefQualifiedRef).WillOnce(Return(3));
463 EXPECT_CALL(std::move(mock_foo), // NOLINT
465 .WillOnce(Return(4));
467 EXPECT_CALL(static_cast<const MockFoo&>(mock_foo), RefQualifiedOverloaded())
468 .WillOnce(Return(5));
469 EXPECT_CALL(static_cast<const MockFoo&&>(mock_foo), RefQualifiedOverloaded())
470 .WillOnce(Return(6));
471 EXPECT_CALL(static_cast<MockFoo&>(mock_foo), RefQualifiedOverloaded())
472 .WillOnce(Return(7));
473 EXPECT_CALL(static_cast<MockFoo&&>(mock_foo), RefQualifiedOverloaded())
474 .WillOnce(Return(8));
476 EXPECT_EQ(mock_foo.RefQualifiedConstRef(), 1);
477 EXPECT_EQ(std::move(mock_foo).RefQualifiedConstRefRef(), 2); // NOLINT
478 EXPECT_EQ(mock_foo.RefQualifiedRef(), 3);
479 EXPECT_EQ(std::move(mock_foo).RefQualifiedRefRef(), 4); // NOLINT
481 EXPECT_EQ(std::cref(mock_foo).get().RefQualifiedOverloaded(), 5);
482 EXPECT_EQ(std::move(std::cref(mock_foo).get()) // NOLINT
483 .RefQualifiedOverloaded(),
485 EXPECT_EQ(mock_foo.RefQualifiedOverloaded(), 7);
486 EXPECT_EQ(std::move(mock_foo).RefQualifiedOverloaded(), 8); // NOLINT
493 MOCK_METHOD(void, DoB, ());
496 GTEST_DISALLOW_COPY_AND_ASSIGN_(MockB);
503 MOCK_METHOD0(DoB, void());
506 GTEST_DISALLOW_COPY_AND_ASSIGN_(LegacyMockB);
509 template <typename T>
510 class ExpectCallTest : public ::testing::Test {};
511 using ExpectCallTestTypes = ::testing::Types<MockB, LegacyMockB>;
512 TYPED_TEST_SUITE(ExpectCallTest, ExpectCallTestTypes);
514 // Tests that functions with no EXPECT_CALL() rules can be called any
516 TYPED_TEST(ExpectCallTest, UnmentionedFunctionCanBeCalledAnyNumberOfTimes) {
531 // Tests mocking template interfaces.
533 template <typename T>
534 class StackInterface {
536 virtual ~StackInterface() {}
538 // Template parameter appears in function parameter.
539 virtual void Push(const T& value) = 0;
540 virtual void Pop() = 0;
541 virtual int GetSize() const = 0;
542 // Template parameter appears in function return type.
543 virtual const T& GetTop() const = 0;
546 template <typename T>
547 class MockStack : public StackInterface<T> {
551 MOCK_METHOD(void, Push, (const T& elem), ());
552 MOCK_METHOD(void, Pop, (), (final));
553 MOCK_METHOD(int, GetSize, (), (const, override));
554 MOCK_METHOD(const T&, GetTop, (), (const));
556 // Tests that the function return type can contain unprotected comma.
557 MOCK_METHOD((std::map<int, int>), ReturnTypeWithComma, (), ());
558 MOCK_METHOD((std::map<int, int>), ReturnTypeWithComma, (int), (const));
561 GTEST_DISALLOW_COPY_AND_ASSIGN_(MockStack);
564 template <typename T>
565 class LegacyMockStack : public StackInterface<T> {
569 MOCK_METHOD1_T(Push, void(const T& elem));
570 MOCK_METHOD0_T(Pop, void());
571 MOCK_CONST_METHOD0_T(GetSize, int()); // NOLINT
572 MOCK_CONST_METHOD0_T(GetTop, const T&());
574 // Tests that the function return type can contain unprotected comma.
575 MOCK_METHOD0_T(ReturnTypeWithComma, std::map<int, int>());
576 MOCK_CONST_METHOD1_T(ReturnTypeWithComma, std::map<int, int>(int)); // NOLINT
579 GTEST_DISALLOW_COPY_AND_ASSIGN_(LegacyMockStack);
582 template <typename T>
583 class TemplateMockTest : public ::testing::Test {};
584 using TemplateMockTestTypes =
585 ::testing::Types<MockStack<int>, LegacyMockStack<int>>;
586 TYPED_TEST_SUITE(TemplateMockTest, TemplateMockTestTypes);
588 // Tests that template mock works.
589 TYPED_TEST(TemplateMockTest, Works) {
592 EXPECT_CALL(mock, GetSize())
595 .WillOnce(Return(0));
596 EXPECT_CALL(mock, Push(_));
598 EXPECT_CALL(mock, GetTop())
599 .WillOnce(ReturnRef(n));
600 EXPECT_CALL(mock, Pop())
603 EXPECT_EQ(0, mock.GetSize());
605 EXPECT_EQ(1, mock.GetSize());
606 EXPECT_EQ(5, mock.GetTop());
608 EXPECT_EQ(0, mock.GetSize());
611 TYPED_TEST(TemplateMockTest, MethodWithCommaInReturnTypeWorks) {
614 const std::map<int, int> a_map;
615 EXPECT_CALL(mock, ReturnTypeWithComma())
616 .WillOnce(Return(a_map));
617 EXPECT_CALL(mock, ReturnTypeWithComma(1))
618 .WillOnce(Return(a_map));
620 EXPECT_EQ(a_map, mock.ReturnTypeWithComma());
621 EXPECT_EQ(a_map, mock.ReturnTypeWithComma(1));
625 // Tests mocking template interfaces with calltype.
627 template <typename T>
628 class StackInterfaceWithCallType {
630 virtual ~StackInterfaceWithCallType() {}
632 // Template parameter appears in function parameter.
633 STDMETHOD_(void, Push)(const T& value) = 0;
634 STDMETHOD_(void, Pop)() = 0;
635 STDMETHOD_(int, GetSize)() const = 0;
636 // Template parameter appears in function return type.
637 STDMETHOD_(const T&, GetTop)() const = 0;
640 template <typename T>
641 class MockStackWithCallType : public StackInterfaceWithCallType<T> {
643 MockStackWithCallType() {}
645 MOCK_METHOD(void, Push, (const T& elem),
646 (Calltype(STDMETHODCALLTYPE), override));
647 MOCK_METHOD(void, Pop, (), (Calltype(STDMETHODCALLTYPE), override));
648 MOCK_METHOD(int, GetSize, (), (Calltype(STDMETHODCALLTYPE), override, const));
649 MOCK_METHOD(const T&, GetTop, (),
650 (Calltype(STDMETHODCALLTYPE), override, const));
653 GTEST_DISALLOW_COPY_AND_ASSIGN_(MockStackWithCallType);
656 template <typename T>
657 class LegacyMockStackWithCallType : public StackInterfaceWithCallType<T> {
659 LegacyMockStackWithCallType() {}
661 MOCK_METHOD1_T_WITH_CALLTYPE(STDMETHODCALLTYPE, Push, void(const T& elem));
662 MOCK_METHOD0_T_WITH_CALLTYPE(STDMETHODCALLTYPE, Pop, void());
663 MOCK_CONST_METHOD0_T_WITH_CALLTYPE(STDMETHODCALLTYPE, GetSize, int());
664 MOCK_CONST_METHOD0_T_WITH_CALLTYPE(STDMETHODCALLTYPE, GetTop, const T&());
667 GTEST_DISALLOW_COPY_AND_ASSIGN_(LegacyMockStackWithCallType);
670 template <typename T>
671 class TemplateMockTestWithCallType : public ::testing::Test {};
672 using TemplateMockTestWithCallTypeTypes =
673 ::testing::Types<MockStackWithCallType<int>,
674 LegacyMockStackWithCallType<int>>;
675 TYPED_TEST_SUITE(TemplateMockTestWithCallType,
676 TemplateMockTestWithCallTypeTypes);
678 // Tests that template mock with calltype works.
679 TYPED_TEST(TemplateMockTestWithCallType, Works) {
682 EXPECT_CALL(mock, GetSize())
685 .WillOnce(Return(0));
686 EXPECT_CALL(mock, Push(_));
688 EXPECT_CALL(mock, GetTop())
689 .WillOnce(ReturnRef(n));
690 EXPECT_CALL(mock, Pop())
693 EXPECT_EQ(0, mock.GetSize());
695 EXPECT_EQ(1, mock.GetSize());
696 EXPECT_EQ(5, mock.GetTop());
698 EXPECT_EQ(0, mock.GetSize());
700 #endif // GTEST_OS_WINDOWS
702 #define MY_MOCK_METHODS1_ \
703 MOCK_METHOD(void, Overloaded, ()); \
704 MOCK_METHOD(int, Overloaded, (int), (const)); \
705 MOCK_METHOD(bool, Overloaded, (bool f, int n))
707 #define LEGACY_MY_MOCK_METHODS1_ \
708 MOCK_METHOD0(Overloaded, void()); \
709 MOCK_CONST_METHOD1(Overloaded, int(int n)); \
710 MOCK_METHOD2(Overloaded, bool(bool f, int n))
712 class MockOverloadedOnArgNumber {
714 MockOverloadedOnArgNumber() {}
719 GTEST_DISALLOW_COPY_AND_ASSIGN_(MockOverloadedOnArgNumber);
722 class LegacyMockOverloadedOnArgNumber {
724 LegacyMockOverloadedOnArgNumber() {}
726 LEGACY_MY_MOCK_METHODS1_;
729 GTEST_DISALLOW_COPY_AND_ASSIGN_(LegacyMockOverloadedOnArgNumber);
732 template <typename T>
733 class OverloadedMockMethodTest : public ::testing::Test {};
734 using OverloadedMockMethodTestTypes =
735 ::testing::Types<MockOverloadedOnArgNumber,
736 LegacyMockOverloadedOnArgNumber>;
737 TYPED_TEST_SUITE(OverloadedMockMethodTest, OverloadedMockMethodTestTypes);
739 TYPED_TEST(OverloadedMockMethodTest, CanOverloadOnArgNumberInMacroBody) {
741 EXPECT_CALL(mock, Overloaded());
742 EXPECT_CALL(mock, Overloaded(1)).WillOnce(Return(2));
743 EXPECT_CALL(mock, Overloaded(true, 1)).WillOnce(Return(true));
746 EXPECT_EQ(2, mock.Overloaded(1));
747 EXPECT_TRUE(mock.Overloaded(true, 1));
750 #define MY_MOCK_METHODS2_ \
751 MOCK_CONST_METHOD1(Overloaded, int(int n)); \
752 MOCK_METHOD1(Overloaded, int(int n))
754 class MockOverloadedOnConstness {
756 MockOverloadedOnConstness() {}
761 GTEST_DISALLOW_COPY_AND_ASSIGN_(MockOverloadedOnConstness);
764 TEST(MockMethodOverloadedMockMethodTest, CanOverloadOnConstnessInMacroBody) {
765 MockOverloadedOnConstness mock;
766 const MockOverloadedOnConstness* const_mock = &mock;
767 EXPECT_CALL(mock, Overloaded(1)).WillOnce(Return(2));
768 EXPECT_CALL(*const_mock, Overloaded(1)).WillOnce(Return(3));
770 EXPECT_EQ(2, mock.Overloaded(1));
771 EXPECT_EQ(3, const_mock->Overloaded(1));
774 TEST(MockMethodMockFunctionTest, WorksForVoidNullary) {
775 MockFunction<void()> foo;
776 EXPECT_CALL(foo, Call());
780 TEST(MockMethodMockFunctionTest, WorksForNonVoidNullary) {
781 MockFunction<int()> foo;
782 EXPECT_CALL(foo, Call())
784 .WillOnce(Return(2));
785 EXPECT_EQ(1, foo.Call());
786 EXPECT_EQ(2, foo.Call());
789 TEST(MockMethodMockFunctionTest, WorksForVoidUnary) {
790 MockFunction<void(int)> foo;
791 EXPECT_CALL(foo, Call(1));
795 TEST(MockMethodMockFunctionTest, WorksForNonVoidBinary) {
796 MockFunction<int(bool, int)> foo;
797 EXPECT_CALL(foo, Call(false, 42))
799 .WillOnce(Return(2));
800 EXPECT_CALL(foo, Call(true, Ge(100)))
801 .WillOnce(Return(3));
802 EXPECT_EQ(1, foo.Call(false, 42));
803 EXPECT_EQ(2, foo.Call(false, 42));
804 EXPECT_EQ(3, foo.Call(true, 120));
807 TEST(MockMethodMockFunctionTest, WorksFor10Arguments) {
808 MockFunction<int(bool a0, char a1, int a2, int a3, int a4,
809 int a5, int a6, char a7, int a8, bool a9)> foo;
810 EXPECT_CALL(foo, Call(_, 'a', _, _, _, _, _, _, _, _))
812 .WillOnce(Return(2));
813 EXPECT_EQ(1, foo.Call(false, 'a', 0, 0, 0, 0, 0, 'b', 0, true));
814 EXPECT_EQ(2, foo.Call(true, 'a', 0, 0, 0, 0, 0, 'b', 1, false));
817 TEST(MockMethodMockFunctionTest, AsStdFunction) {
818 MockFunction<int(int)> foo;
819 auto call = [](const std::function<int(int)> &f, int i) {
822 EXPECT_CALL(foo, Call(1)).WillOnce(Return(-1));
823 EXPECT_CALL(foo, Call(2)).WillOnce(Return(-2));
824 EXPECT_EQ(-1, call(foo.AsStdFunction(), 1));
825 EXPECT_EQ(-2, call(foo.AsStdFunction(), 2));
828 TEST(MockMethodMockFunctionTest, AsStdFunctionReturnsReference) {
829 MockFunction<int&()> foo;
831 EXPECT_CALL(foo, Call()).WillOnce(ReturnRef(value));
832 int& ref = foo.AsStdFunction()();
838 TEST(MockMethodMockFunctionTest, AsStdFunctionWithReferenceParameter) {
839 MockFunction<int(int &)> foo;
840 auto call = [](const std::function<int(int& )> &f, int &i) {
844 EXPECT_CALL(foo, Call(i)).WillOnce(Return(-1));
845 EXPECT_EQ(-1, call(foo.AsStdFunction(), i));
850 template <typename Expected, typename F>
851 static constexpr bool IsMockFunctionTemplateArgumentDeducedTo(
852 const internal::MockFunction<F>&) {
853 return std::is_same<F, Expected>::value;
858 template <typename F>
859 class MockMethodMockFunctionSignatureTest : public Test {};
861 using MockMethodMockFunctionSignatureTypes =
862 Types<void(), int(), void(int), int(int), int(bool, int),
863 int(bool, char, int, int, int, int, int, char, int, bool)>;
864 TYPED_TEST_SUITE(MockMethodMockFunctionSignatureTest,
865 MockMethodMockFunctionSignatureTypes);
867 TYPED_TEST(MockMethodMockFunctionSignatureTest,
868 IsMockFunctionTemplateArgumentDeducedForRawSignature) {
869 using Argument = TypeParam;
870 MockFunction<Argument> foo;
871 EXPECT_TRUE(IsMockFunctionTemplateArgumentDeducedTo<TypeParam>(foo));
874 TYPED_TEST(MockMethodMockFunctionSignatureTest,
875 IsMockFunctionTemplateArgumentDeducedForStdFunction) {
876 using Argument = std::function<TypeParam>;
877 MockFunction<Argument> foo;
878 EXPECT_TRUE(IsMockFunctionTemplateArgumentDeducedTo<TypeParam>(foo));
882 MockMethodMockFunctionSignatureTest,
883 IsMockFunctionCallMethodSignatureTheSameForRawSignatureAndStdFunction) {
884 using ForRawSignature = decltype(&MockFunction<TypeParam>::Call);
885 using ForStdFunction =
886 decltype(&MockFunction<std::function<TypeParam>>::Call);
887 EXPECT_TRUE((std::is_same<ForRawSignature, ForStdFunction>::value));
890 template <typename F>
891 struct AlternateCallable {
894 TYPED_TEST(MockMethodMockFunctionSignatureTest,
895 IsMockFunctionTemplateArgumentDeducedForAlternateCallable) {
896 using Argument = AlternateCallable<TypeParam>;
897 MockFunction<Argument> foo;
898 EXPECT_TRUE(IsMockFunctionTemplateArgumentDeducedTo<TypeParam>(foo));
902 MockMethodMockFunctionSignatureTest,
903 IsMockFunctionCallMethodSignatureTheSameForAlternateCallable) {
904 using ForRawSignature = decltype(&MockFunction<TypeParam>::Call);
905 using ForStdFunction =
906 decltype(&MockFunction<std::function<TypeParam>>::Call);
907 EXPECT_TRUE((std::is_same<ForRawSignature, ForStdFunction>::value));
911 struct MockMethodSizes0 {
912 MOCK_METHOD(void, func, ());
914 struct MockMethodSizes1 {
915 MOCK_METHOD(void, func, (int));
917 struct MockMethodSizes2 {
918 MOCK_METHOD(void, func, (int, int));
920 struct MockMethodSizes3 {
921 MOCK_METHOD(void, func, (int, int, int));
923 struct MockMethodSizes4 {
924 MOCK_METHOD(void, func, (int, int, int, int));
927 struct LegacyMockMethodSizes0 {
928 MOCK_METHOD0(func, void());
930 struct LegacyMockMethodSizes1 {
931 MOCK_METHOD1(func, void(int));
933 struct LegacyMockMethodSizes2 {
934 MOCK_METHOD2(func, void(int, int));
936 struct LegacyMockMethodSizes3 {
937 MOCK_METHOD3(func, void(int, int, int));
939 struct LegacyMockMethodSizes4 {
940 MOCK_METHOD4(func, void(int, int, int, int));
944 TEST(MockMethodMockFunctionTest, MockMethodSizeOverhead) {
945 EXPECT_EQ(sizeof(MockMethodSizes0), sizeof(MockMethodSizes1));
946 EXPECT_EQ(sizeof(MockMethodSizes0), sizeof(MockMethodSizes2));
947 EXPECT_EQ(sizeof(MockMethodSizes0), sizeof(MockMethodSizes3));
948 EXPECT_EQ(sizeof(MockMethodSizes0), sizeof(MockMethodSizes4));
950 EXPECT_EQ(sizeof(LegacyMockMethodSizes0), sizeof(LegacyMockMethodSizes1));
951 EXPECT_EQ(sizeof(LegacyMockMethodSizes0), sizeof(LegacyMockMethodSizes2));
952 EXPECT_EQ(sizeof(LegacyMockMethodSizes0), sizeof(LegacyMockMethodSizes3));
953 EXPECT_EQ(sizeof(LegacyMockMethodSizes0), sizeof(LegacyMockMethodSizes4));
955 EXPECT_EQ(sizeof(LegacyMockMethodSizes0), sizeof(MockMethodSizes0));
958 void hasTwoParams(int, int);
960 void DoesntThrow() noexcept;
961 struct MockMethodNoexceptSpecifier {
962 MOCK_METHOD(void, func1, (), (noexcept));
963 MOCK_METHOD(void, func2, (), (noexcept(true)));
964 MOCK_METHOD(void, func3, (), (noexcept(false)));
965 MOCK_METHOD(void, func4, (), (noexcept(noexcept(MaybeThrows()))));
966 MOCK_METHOD(void, func5, (), (noexcept(noexcept(DoesntThrow()))));
967 MOCK_METHOD(void, func6, (), (noexcept(noexcept(DoesntThrow())), const));
968 MOCK_METHOD(void, func7, (), (const, noexcept(noexcept(DoesntThrow()))));
969 // Put commas in the noexcept expression
970 MOCK_METHOD(void, func8, (), (noexcept(noexcept(hasTwoParams(1, 2))), const));
973 TEST(MockMethodMockFunctionTest, NoexceptSpecifierPreserved) {
974 EXPECT_TRUE(noexcept(std::declval<MockMethodNoexceptSpecifier>().func1()));
975 EXPECT_TRUE(noexcept(std::declval<MockMethodNoexceptSpecifier>().func2()));
976 EXPECT_FALSE(noexcept(std::declval<MockMethodNoexceptSpecifier>().func3()));
977 EXPECT_FALSE(noexcept(std::declval<MockMethodNoexceptSpecifier>().func4()));
978 EXPECT_TRUE(noexcept(std::declval<MockMethodNoexceptSpecifier>().func5()));
979 EXPECT_TRUE(noexcept(std::declval<MockMethodNoexceptSpecifier>().func6()));
980 EXPECT_TRUE(noexcept(std::declval<MockMethodNoexceptSpecifier>().func7()));
981 EXPECT_EQ(noexcept(std::declval<MockMethodNoexceptSpecifier>().func8()),
982 noexcept(hasTwoParams(1, 2)));
985 } // namespace gmock_function_mocker_test
986 } // namespace testing