1 // Copyright 2007, Google Inc. 2 // All rights reserved. 3 // 4 // Redistribution and use in source and binary forms, with or without 5 // modification, are permitted provided that the following conditions are 6 // met: 7 // 8 // * Redistributions of source code must retain the above copyright 9 // notice, this list of conditions and the following disclaimer. 10 // * Redistributions in binary form must reproduce the above 11 // copyright notice, this list of conditions and the following disclaimer 12 // in the documentation and/or other materials provided with the 13 // distribution. 14 // * Neither the name of Google Inc. nor the names of its 15 // contributors may be used to endorse or promote products derived from 16 // this software without specific prior written permission. 17 // 18 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 // 30 // Author: wan (at) google.com (Zhanyong Wan) 31 32 // Google Mock - a framework for writing C++ mock classes. 33 // 34 // This file tests the function mocker classes. 35 36 #include "gmock/gmock-generated-function-mockers.h" 37 38 #if GTEST_OS_WINDOWS 39 // MSDN says the header file to be included for STDMETHOD is BaseTyps.h but 40 // we are getting compiler errors if we use basetyps.h, hence including 41 // objbase.h for definition of STDMETHOD. 42 # include <objbase.h> 43 #endif // GTEST_OS_WINDOWS 44 45 #include <map> 46 #include <string> 47 #include "gmock/gmock.h" 48 #include "gtest/gtest.h" 49 50 // There is a bug in MSVC (fixed in VS 2008) that prevents creating a 51 // mock for a function with const arguments, so we don't test such 52 // cases for MSVC versions older than 2008. 53 #if !GTEST_OS_WINDOWS || (_MSC_VER >= 1500) 54 # define GMOCK_ALLOWS_CONST_PARAM_FUNCTIONS 55 #endif // !GTEST_OS_WINDOWS || (_MSC_VER >= 1500) 56 57 namespace testing { 58 namespace gmock_generated_function_mockers_test { 59 60 using testing::internal::string; 61 using testing::_; 62 using testing::A; 63 using testing::An; 64 using testing::AnyNumber; 65 using testing::Const; 66 using testing::DoDefault; 67 using testing::Eq; 68 using testing::Lt; 69 using testing::MockFunction; 70 using testing::Ref; 71 using testing::Return; 72 using testing::ReturnRef; 73 using testing::TypedEq; 74 75 class FooInterface { 76 public: 77 virtual ~FooInterface() {} 78 79 virtual void VoidReturning(int x) = 0; 80 81 virtual int Nullary() = 0; 82 virtual bool Unary(int x) = 0; 83 virtual long Binary(short x, int y) = 0; // NOLINT 84 virtual int Decimal(bool b, char c, short d, int e, long f, // NOLINT 85 float g, double h, unsigned i, char* j, const string& k) 86 = 0; 87 88 virtual bool TakesNonConstReference(int& n) = 0; // NOLINT 89 virtual string TakesConstReference(const int& n) = 0; 90 #ifdef GMOCK_ALLOWS_CONST_PARAM_FUNCTIONS 91 virtual bool TakesConst(const int x) = 0; 92 #endif // GMOCK_ALLOWS_CONST_PARAM_FUNCTIONS 93 94 virtual int OverloadedOnArgumentNumber() = 0; 95 virtual int OverloadedOnArgumentNumber(int n) = 0; 96 97 virtual int OverloadedOnArgumentType(int n) = 0; 98 virtual char OverloadedOnArgumentType(char c) = 0; 99 100 virtual int OverloadedOnConstness() = 0; 101 virtual char OverloadedOnConstness() const = 0; 102 103 virtual int TypeWithHole(int (*func)()) = 0; 104 virtual int TypeWithComma(const std::map<int, string>& a_map) = 0; 105 106 #if GTEST_OS_WINDOWS 107 STDMETHOD_(int, CTNullary)() = 0; 108 STDMETHOD_(bool, CTUnary)(int x) = 0; 109 STDMETHOD_(int, CTDecimal)(bool b, char c, short d, int e, long f, // NOLINT 110 float g, double h, unsigned i, char* j, const string& k) = 0; 111 STDMETHOD_(char, CTConst)(int x) const = 0; 112 #endif // GTEST_OS_WINDOWS 113 }; 114 115 // Const qualifiers on arguments were once (incorrectly) considered 116 // significant in determining whether two virtual functions had the same 117 // signature. This was fixed in Visual Studio 2008. However, the compiler 118 // still emits a warning that alerts about this change in behavior. 119 #ifdef _MSC_VER 120 # pragma warning(push) 121 # pragma warning(disable : 4373) 122 #endif 123 class MockFoo : public FooInterface { 124 public: 125 MockFoo() {} 126 127 // Makes sure that a mock function parameter can be named. 128 MOCK_METHOD1(VoidReturning, void(int n)); // NOLINT 129 130 MOCK_METHOD0(Nullary, int()); // NOLINT 131 132 // Makes sure that a mock function parameter can be unnamed. 133 MOCK_METHOD1(Unary, bool(int)); // NOLINT 134 MOCK_METHOD2(Binary, long(short, int)); // NOLINT 135 MOCK_METHOD10(Decimal, int(bool, char, short, int, long, float, // NOLINT 136 double, unsigned, char*, const string& str)); 137 138 MOCK_METHOD1(TakesNonConstReference, bool(int&)); // NOLINT 139 MOCK_METHOD1(TakesConstReference, string(const int&)); 140 141 #ifdef GMOCK_ALLOWS_CONST_PARAM_FUNCTIONS 142 MOCK_METHOD1(TakesConst, bool(const int)); // NOLINT 143 #endif 144 145 // Tests that the function return type can contain unprotected comma. 146 MOCK_METHOD0(ReturnTypeWithComma, std::map<int, string>()); 147 MOCK_CONST_METHOD1(ReturnTypeWithComma, 148 std::map<int, string>(int)); // NOLINT 149 150 MOCK_METHOD0(OverloadedOnArgumentNumber, int()); // NOLINT 151 MOCK_METHOD1(OverloadedOnArgumentNumber, int(int)); // NOLINT 152 153 MOCK_METHOD1(OverloadedOnArgumentType, int(int)); // NOLINT 154 MOCK_METHOD1(OverloadedOnArgumentType, char(char)); // NOLINT 155 156 MOCK_METHOD0(OverloadedOnConstness, int()); // NOLINT 157 MOCK_CONST_METHOD0(OverloadedOnConstness, char()); // NOLINT 158 159 MOCK_METHOD1(TypeWithHole, int(int (*)())); // NOLINT 160 MOCK_METHOD1(TypeWithComma, int(const std::map<int, string>&)); // NOLINT 161 162 #if GTEST_OS_WINDOWS 163 MOCK_METHOD0_WITH_CALLTYPE(STDMETHODCALLTYPE, CTNullary, int()); 164 MOCK_METHOD1_WITH_CALLTYPE(STDMETHODCALLTYPE, CTUnary, bool(int)); 165 MOCK_METHOD10_WITH_CALLTYPE(STDMETHODCALLTYPE, CTDecimal, int(bool b, char c, 166 short d, int e, long f, float g, double h, unsigned i, char* j, 167 const string& k)); 168 MOCK_CONST_METHOD1_WITH_CALLTYPE(STDMETHODCALLTYPE, CTConst, char(int)); 169 170 // Tests that the function return type can contain unprotected comma. 171 MOCK_METHOD0_WITH_CALLTYPE(STDMETHODCALLTYPE, CTReturnTypeWithComma, 172 std::map<int, string>()); 173 #endif // GTEST_OS_WINDOWS 174 175 private: 176 GTEST_DISALLOW_COPY_AND_ASSIGN_(MockFoo); 177 }; 178 #ifdef _MSC_VER 179 # pragma warning(pop) 180 #endif 181 182 class FunctionMockerTest : public testing::Test { 183 protected: 184 FunctionMockerTest() : foo_(&mock_foo_) {} 185 186 FooInterface* const foo_; 187 MockFoo mock_foo_; 188 }; 189 190 // Tests mocking a void-returning function. 191 TEST_F(FunctionMockerTest, MocksVoidFunction) { 192 EXPECT_CALL(mock_foo_, VoidReturning(Lt(100))); 193 foo_->VoidReturning(0); 194 } 195 196 // Tests mocking a nullary function. 197 TEST_F(FunctionMockerTest, MocksNullaryFunction) { 198 EXPECT_CALL(mock_foo_, Nullary()) 199 .WillOnce(DoDefault()) 200 .WillOnce(Return(1)); 201 202 EXPECT_EQ(0, foo_->Nullary()); 203 EXPECT_EQ(1, foo_->Nullary()); 204 } 205 206 // Tests mocking a unary function. 207 TEST_F(FunctionMockerTest, MocksUnaryFunction) { 208 EXPECT_CALL(mock_foo_, Unary(Eq(2))) 209 .Times(2) 210 .WillOnce(Return(true)); 211 212 EXPECT_TRUE(foo_->Unary(2)); 213 EXPECT_FALSE(foo_->Unary(2)); 214 } 215 216 // Tests mocking a binary function. 217 TEST_F(FunctionMockerTest, MocksBinaryFunction) { 218 EXPECT_CALL(mock_foo_, Binary(2, _)) 219 .WillOnce(Return(3)); 220 221 EXPECT_EQ(3, foo_->Binary(2, 1)); 222 } 223 224 // Tests mocking a decimal function. 225 TEST_F(FunctionMockerTest, MocksDecimalFunction) { 226 EXPECT_CALL(mock_foo_, Decimal(true, 'a', 0, 0, 1L, A<float>(), 227 Lt(100), 5U, NULL, "hi")) 228 .WillOnce(Return(5)); 229 230 EXPECT_EQ(5, foo_->Decimal(true, 'a', 0, 0, 1, 0, 0, 5, NULL, "hi")); 231 } 232 233 // Tests mocking a function that takes a non-const reference. 234 TEST_F(FunctionMockerTest, MocksFunctionWithNonConstReferenceArgument) { 235 int a = 0; 236 EXPECT_CALL(mock_foo_, TakesNonConstReference(Ref(a))) 237 .WillOnce(Return(true)); 238 239 EXPECT_TRUE(foo_->TakesNonConstReference(a)); 240 } 241 242 // Tests mocking a function that takes a const reference. 243 TEST_F(FunctionMockerTest, MocksFunctionWithConstReferenceArgument) { 244 int a = 0; 245 EXPECT_CALL(mock_foo_, TakesConstReference(Ref(a))) 246 .WillOnce(Return("Hello")); 247 248 EXPECT_EQ("Hello", foo_->TakesConstReference(a)); 249 } 250 251 #ifdef GMOCK_ALLOWS_CONST_PARAM_FUNCTIONS 252 // Tests mocking a function that takes a const variable. 253 TEST_F(FunctionMockerTest, MocksFunctionWithConstArgument) { 254 EXPECT_CALL(mock_foo_, TakesConst(Lt(10))) 255 .WillOnce(DoDefault()); 256 257 EXPECT_FALSE(foo_->TakesConst(5)); 258 } 259 #endif // GMOCK_ALLOWS_CONST_PARAM_FUNCTIONS 260 261 // Tests mocking functions overloaded on the number of arguments. 262 TEST_F(FunctionMockerTest, MocksFunctionsOverloadedOnArgumentNumber) { 263 EXPECT_CALL(mock_foo_, OverloadedOnArgumentNumber()) 264 .WillOnce(Return(1)); 265 EXPECT_CALL(mock_foo_, OverloadedOnArgumentNumber(_)) 266 .WillOnce(Return(2)); 267 268 EXPECT_EQ(2, foo_->OverloadedOnArgumentNumber(1)); 269 EXPECT_EQ(1, foo_->OverloadedOnArgumentNumber()); 270 } 271 272 // Tests mocking functions overloaded on the types of argument. 273 TEST_F(FunctionMockerTest, MocksFunctionsOverloadedOnArgumentType) { 274 EXPECT_CALL(mock_foo_, OverloadedOnArgumentType(An<int>())) 275 .WillOnce(Return(1)); 276 EXPECT_CALL(mock_foo_, OverloadedOnArgumentType(TypedEq<char>('a'))) 277 .WillOnce(Return('b')); 278 279 EXPECT_EQ(1, foo_->OverloadedOnArgumentType(0)); 280 EXPECT_EQ('b', foo_->OverloadedOnArgumentType('a')); 281 } 282 283 // Tests mocking functions overloaded on the const-ness of this object. 284 TEST_F(FunctionMockerTest, MocksFunctionsOverloadedOnConstnessOfThis) { 285 EXPECT_CALL(mock_foo_, OverloadedOnConstness()); 286 EXPECT_CALL(Const(mock_foo_), OverloadedOnConstness()) 287 .WillOnce(Return('a')); 288 289 EXPECT_EQ(0, foo_->OverloadedOnConstness()); 290 EXPECT_EQ('a', Const(*foo_).OverloadedOnConstness()); 291 } 292 293 TEST_F(FunctionMockerTest, MocksReturnTypeWithComma) { 294 const std::map<int, string> a_map; 295 EXPECT_CALL(mock_foo_, ReturnTypeWithComma()) 296 .WillOnce(Return(a_map)); 297 EXPECT_CALL(mock_foo_, ReturnTypeWithComma(42)) 298 .WillOnce(Return(a_map)); 299 300 EXPECT_EQ(a_map, mock_foo_.ReturnTypeWithComma()); 301 EXPECT_EQ(a_map, mock_foo_.ReturnTypeWithComma(42)); 302 } 303 304 #if GTEST_OS_WINDOWS 305 // Tests mocking a nullary function with calltype. 306 TEST_F(FunctionMockerTest, MocksNullaryFunctionWithCallType) { 307 EXPECT_CALL(mock_foo_, CTNullary()) 308 .WillOnce(Return(-1)) 309 .WillOnce(Return(0)); 310 311 EXPECT_EQ(-1, foo_->CTNullary()); 312 EXPECT_EQ(0, foo_->CTNullary()); 313 } 314 315 // Tests mocking a unary function with calltype. 316 TEST_F(FunctionMockerTest, MocksUnaryFunctionWithCallType) { 317 EXPECT_CALL(mock_foo_, CTUnary(Eq(2))) 318 .Times(2) 319 .WillOnce(Return(true)) 320 .WillOnce(Return(false)); 321 322 EXPECT_TRUE(foo_->CTUnary(2)); 323 EXPECT_FALSE(foo_->CTUnary(2)); 324 } 325 326 // Tests mocking a decimal function with calltype. 327 TEST_F(FunctionMockerTest, MocksDecimalFunctionWithCallType) { 328 EXPECT_CALL(mock_foo_, CTDecimal(true, 'a', 0, 0, 1L, A<float>(), 329 Lt(100), 5U, NULL, "hi")) 330 .WillOnce(Return(10)); 331 332 EXPECT_EQ(10, foo_->CTDecimal(true, 'a', 0, 0, 1, 0, 0, 5, NULL, "hi")); 333 } 334 335 // Tests mocking functions overloaded on the const-ness of this object. 336 TEST_F(FunctionMockerTest, MocksFunctionsConstFunctionWithCallType) { 337 EXPECT_CALL(Const(mock_foo_), CTConst(_)) 338 .WillOnce(Return('a')); 339 340 EXPECT_EQ('a', Const(*foo_).CTConst(0)); 341 } 342 343 TEST_F(FunctionMockerTest, MocksReturnTypeWithCommaAndCallType) { 344 const std::map<int, string> a_map; 345 EXPECT_CALL(mock_foo_, CTReturnTypeWithComma()) 346 .WillOnce(Return(a_map)); 347 348 EXPECT_EQ(a_map, mock_foo_.CTReturnTypeWithComma()); 349 } 350 351 #endif // GTEST_OS_WINDOWS 352 353 class MockB { 354 public: 355 MockB() {} 356 357 MOCK_METHOD0(DoB, void()); 358 359 private: 360 GTEST_DISALLOW_COPY_AND_ASSIGN_(MockB); 361 }; 362 363 // Tests that functions with no EXPECT_CALL() ruls can be called any 364 // number of times. 365 TEST(ExpectCallTest, UnmentionedFunctionCanBeCalledAnyNumberOfTimes) { 366 { 367 MockB b; 368 } 369 370 { 371 MockB b; 372 b.DoB(); 373 } 374 375 { 376 MockB b; 377 b.DoB(); 378 b.DoB(); 379 } 380 } 381 382 // Tests mocking template interfaces. 383 384 template <typename T> 385 class StackInterface { 386 public: 387 virtual ~StackInterface() {} 388 389 // Template parameter appears in function parameter. 390 virtual void Push(const T& value) = 0; 391 virtual void Pop() = 0; 392 virtual int GetSize() const = 0; 393 // Template parameter appears in function return type. 394 virtual const T& GetTop() const = 0; 395 }; 396 397 template <typename T> 398 class MockStack : public StackInterface<T> { 399 public: 400 MockStack() {} 401 402 MOCK_METHOD1_T(Push, void(const T& elem)); 403 MOCK_METHOD0_T(Pop, void()); 404 MOCK_CONST_METHOD0_T(GetSize, int()); // NOLINT 405 MOCK_CONST_METHOD0_T(GetTop, const T&()); 406 407 // Tests that the function return type can contain unprotected comma. 408 MOCK_METHOD0_T(ReturnTypeWithComma, std::map<int, int>()); 409 MOCK_CONST_METHOD1_T(ReturnTypeWithComma, std::map<int, int>(int)); // NOLINT 410 411 private: 412 GTEST_DISALLOW_COPY_AND_ASSIGN_(MockStack); 413 }; 414 415 // Tests that template mock works. 416 TEST(TemplateMockTest, Works) { 417 MockStack<int> mock; 418 419 EXPECT_CALL(mock, GetSize()) 420 .WillOnce(Return(0)) 421 .WillOnce(Return(1)) 422 .WillOnce(Return(0)); 423 EXPECT_CALL(mock, Push(_)); 424 int n = 5; 425 EXPECT_CALL(mock, GetTop()) 426 .WillOnce(ReturnRef(n)); 427 EXPECT_CALL(mock, Pop()) 428 .Times(AnyNumber()); 429 430 EXPECT_EQ(0, mock.GetSize()); 431 mock.Push(5); 432 EXPECT_EQ(1, mock.GetSize()); 433 EXPECT_EQ(5, mock.GetTop()); 434 mock.Pop(); 435 EXPECT_EQ(0, mock.GetSize()); 436 } 437 438 TEST(TemplateMockTest, MethodWithCommaInReturnTypeWorks) { 439 MockStack<int> mock; 440 441 const std::map<int, int> a_map; 442 EXPECT_CALL(mock, ReturnTypeWithComma()) 443 .WillOnce(Return(a_map)); 444 EXPECT_CALL(mock, ReturnTypeWithComma(1)) 445 .WillOnce(Return(a_map)); 446 447 EXPECT_EQ(a_map, mock.ReturnTypeWithComma()); 448 EXPECT_EQ(a_map, mock.ReturnTypeWithComma(1)); 449 } 450 451 #if GTEST_OS_WINDOWS 452 // Tests mocking template interfaces with calltype. 453 454 template <typename T> 455 class StackInterfaceWithCallType { 456 public: 457 virtual ~StackInterfaceWithCallType() {} 458 459 // Template parameter appears in function parameter. 460 STDMETHOD_(void, Push)(const T& value) = 0; 461 STDMETHOD_(void, Pop)() = 0; 462 STDMETHOD_(int, GetSize)() const = 0; 463 // Template parameter appears in function return type. 464 STDMETHOD_(const T&, GetTop)() const = 0; 465 }; 466 467 template <typename T> 468 class MockStackWithCallType : public StackInterfaceWithCallType<T> { 469 public: 470 MockStackWithCallType() {} 471 472 MOCK_METHOD1_T_WITH_CALLTYPE(STDMETHODCALLTYPE, Push, void(const T& elem)); 473 MOCK_METHOD0_T_WITH_CALLTYPE(STDMETHODCALLTYPE, Pop, void()); 474 MOCK_CONST_METHOD0_T_WITH_CALLTYPE(STDMETHODCALLTYPE, GetSize, int()); 475 MOCK_CONST_METHOD0_T_WITH_CALLTYPE(STDMETHODCALLTYPE, GetTop, const T&()); 476 477 private: 478 GTEST_DISALLOW_COPY_AND_ASSIGN_(MockStackWithCallType); 479 }; 480 481 // Tests that template mock with calltype works. 482 TEST(TemplateMockTestWithCallType, Works) { 483 MockStackWithCallType<int> mock; 484 485 EXPECT_CALL(mock, GetSize()) 486 .WillOnce(Return(0)) 487 .WillOnce(Return(1)) 488 .WillOnce(Return(0)); 489 EXPECT_CALL(mock, Push(_)); 490 int n = 5; 491 EXPECT_CALL(mock, GetTop()) 492 .WillOnce(ReturnRef(n)); 493 EXPECT_CALL(mock, Pop()) 494 .Times(AnyNumber()); 495 496 EXPECT_EQ(0, mock.GetSize()); 497 mock.Push(5); 498 EXPECT_EQ(1, mock.GetSize()); 499 EXPECT_EQ(5, mock.GetTop()); 500 mock.Pop(); 501 EXPECT_EQ(0, mock.GetSize()); 502 } 503 #endif // GTEST_OS_WINDOWS 504 505 #define MY_MOCK_METHODS1_ \ 506 MOCK_METHOD0(Overloaded, void()); \ 507 MOCK_CONST_METHOD1(Overloaded, int(int n)); \ 508 MOCK_METHOD2(Overloaded, bool(bool f, int n)) 509 510 class MockOverloadedOnArgNumber { 511 public: 512 MockOverloadedOnArgNumber() {} 513 514 MY_MOCK_METHODS1_; 515 516 private: 517 GTEST_DISALLOW_COPY_AND_ASSIGN_(MockOverloadedOnArgNumber); 518 }; 519 520 TEST(OverloadedMockMethodTest, CanOverloadOnArgNumberInMacroBody) { 521 MockOverloadedOnArgNumber mock; 522 EXPECT_CALL(mock, Overloaded()); 523 EXPECT_CALL(mock, Overloaded(1)).WillOnce(Return(2)); 524 EXPECT_CALL(mock, Overloaded(true, 1)).WillOnce(Return(true)); 525 526 mock.Overloaded(); 527 EXPECT_EQ(2, mock.Overloaded(1)); 528 EXPECT_TRUE(mock.Overloaded(true, 1)); 529 } 530 531 #define MY_MOCK_METHODS2_ \ 532 MOCK_CONST_METHOD1(Overloaded, int(int n)); \ 533 MOCK_METHOD1(Overloaded, int(int n)); 534 535 class MockOverloadedOnConstness { 536 public: 537 MockOverloadedOnConstness() {} 538 539 MY_MOCK_METHODS2_; 540 541 private: 542 GTEST_DISALLOW_COPY_AND_ASSIGN_(MockOverloadedOnConstness); 543 }; 544 545 TEST(OverloadedMockMethodTest, CanOverloadOnConstnessInMacroBody) { 546 MockOverloadedOnConstness mock; 547 const MockOverloadedOnConstness* const_mock = &mock; 548 EXPECT_CALL(mock, Overloaded(1)).WillOnce(Return(2)); 549 EXPECT_CALL(*const_mock, Overloaded(1)).WillOnce(Return(3)); 550 551 EXPECT_EQ(2, mock.Overloaded(1)); 552 EXPECT_EQ(3, const_mock->Overloaded(1)); 553 } 554 555 TEST(MockFunctionTest, WorksForVoidNullary) { 556 MockFunction<void()> foo; 557 EXPECT_CALL(foo, Call()); 558 foo.Call(); 559 } 560 561 TEST(MockFunctionTest, WorksForNonVoidNullary) { 562 MockFunction<int()> foo; 563 EXPECT_CALL(foo, Call()) 564 .WillOnce(Return(1)) 565 .WillOnce(Return(2)); 566 EXPECT_EQ(1, foo.Call()); 567 EXPECT_EQ(2, foo.Call()); 568 } 569 570 TEST(MockFunctionTest, WorksForVoidUnary) { 571 MockFunction<void(int)> foo; 572 EXPECT_CALL(foo, Call(1)); 573 foo.Call(1); 574 } 575 576 TEST(MockFunctionTest, WorksForNonVoidBinary) { 577 MockFunction<int(bool, int)> foo; 578 EXPECT_CALL(foo, Call(false, 42)) 579 .WillOnce(Return(1)) 580 .WillOnce(Return(2)); 581 EXPECT_CALL(foo, Call(true, Ge(100))) 582 .WillOnce(Return(3)); 583 EXPECT_EQ(1, foo.Call(false, 42)); 584 EXPECT_EQ(2, foo.Call(false, 42)); 585 EXPECT_EQ(3, foo.Call(true, 120)); 586 } 587 588 TEST(MockFunctionTest, WorksFor10Arguments) { 589 MockFunction<int(bool a0, char a1, int a2, int a3, int a4, 590 int a5, int a6, char a7, int a8, bool a9)> foo; 591 EXPECT_CALL(foo, Call(_, 'a', _, _, _, _, _, _, _, _)) 592 .WillOnce(Return(1)) 593 .WillOnce(Return(2)); 594 EXPECT_EQ(1, foo.Call(false, 'a', 0, 0, 0, 0, 0, 'b', 0, true)); 595 EXPECT_EQ(2, foo.Call(true, 'a', 0, 0, 0, 0, 0, 'b', 1, false)); 596 } 597 598 #if GTEST_HAS_STD_FUNCTION_ 599 TEST(MockFunctionTest, AsStdFunction) { 600 MockFunction<int(int)> foo; 601 auto call = [](const std::function<int(int)> &f, int i) { 602 return f(i); 603 }; 604 EXPECT_CALL(foo, Call(1)).WillOnce(Return(-1)); 605 EXPECT_CALL(foo, Call(2)).WillOnce(Return(-2)); 606 EXPECT_EQ(-1, call(foo.AsStdFunction(), 1)); 607 EXPECT_EQ(-2, call(foo.AsStdFunction(), 2)); 608 } 609 610 TEST(MockFunctionTest, AsStdFunctionReturnsReference) { 611 MockFunction<int&()> foo; 612 int value = 1; 613 EXPECT_CALL(foo, Call()).WillOnce(ReturnRef(value)); 614 int& ref = foo.AsStdFunction()(); 615 EXPECT_EQ(1, ref); 616 value = 2; 617 EXPECT_EQ(2, ref); 618 } 619 #endif // GTEST_HAS_STD_FUNCTION_ 620 621 } // namespace gmock_generated_function_mockers_test 622 } // namespace testing 623