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30 // Google Mock - a framework for writing C++ mock classes.
32 // This file tests the built-in actions in gmock-actions.h.
36 #pragma warning(disable : 4577)
39 #include "gmock/gmock-more-actions.h"
46 #include "gmock/gmock.h"
47 #include "gtest/gtest-spi.h"
48 #include "gtest/gtest.h"
51 namespace gmock_more_actions_test {
55 using testing::Action;
56 using testing::DeleteArg;
57 using testing::Invoke;
58 using testing::ReturnArg;
59 using testing::ReturnPointee;
60 using testing::SaveArg;
61 using testing::SaveArgPointee;
62 using testing::SetArgReferee;
63 using testing::Unused;
64 using testing::WithArg;
65 using testing::WithoutArgs;
67 // For suppressing compiler warnings on conversion possibly losing precision.
68 inline short Short(short n) { return n; } // NOLINT
69 inline char Char(char ch) { return ch; }
71 // Sample functions and functors for testing Invoke() and etc.
72 int Nullary() { return 1; }
76 bool Unary(int x) { return x < 0; }
78 bool ByConstRef(const std::string& s) { return s == "Hi"; }
80 const double g_double = 0;
81 bool ReferencesGlobalDouble(const double& x) { return &x == &g_double; }
84 int operator()(bool x) { return x ? 1 : -1; }
87 const char* Binary(const char* input, short n) { return input + n; } // NOLINT
89 int Ternary(int x, char y, short z) { return x + y + z; } // NOLINT
91 int SumOf4(int a, int b, int c, int d) { return a + b + c + d; }
93 int SumOfFirst2(int a, int b, Unused, Unused) { return a + b; }
95 int SumOf5(int a, int b, int c, int d, int e) { return a + b + c + d + e; }
97 struct SumOf5Functor {
98 int operator()(int a, int b, int c, int d, int e) {
99 return a + b + c + d + e;
103 int SumOf6(int a, int b, int c, int d, int e, int f) {
104 return a + b + c + d + e + f;
107 struct SumOf6Functor {
108 int operator()(int a, int b, int c, int d, int e, int f) {
109 return a + b + c + d + e + f;
113 std::string Concat7(const char* s1, const char* s2, const char* s3,
114 const char* s4, const char* s5, const char* s6,
116 return std::string(s1) + s2 + s3 + s4 + s5 + s6 + s7;
119 std::string Concat8(const char* s1, const char* s2, const char* s3,
120 const char* s4, const char* s5, const char* s6,
121 const char* s7, const char* s8) {
122 return std::string(s1) + s2 + s3 + s4 + s5 + s6 + s7 + s8;
125 std::string Concat9(const char* s1, const char* s2, const char* s3,
126 const char* s4, const char* s5, const char* s6,
127 const char* s7, const char* s8, const char* s9) {
128 return std::string(s1) + s2 + s3 + s4 + s5 + s6 + s7 + s8 + s9;
131 std::string Concat10(const char* s1, const char* s2, const char* s3,
132 const char* s4, const char* s5, const char* s6,
133 const char* s7, const char* s8, const char* s9,
135 return std::string(s1) + s2 + s3 + s4 + s5 + s6 + s7 + s8 + s9 + s10;
140 Foo() : value_(123) {}
142 int Nullary() const { return value_; }
144 short Unary(long x) { return static_cast<short>(value_ + x); } // NOLINT
146 std::string Binary(const std::string& str, char c) const { return str + c; }
148 int Ternary(int x, bool y, char z) { return value_ + x + y*z; }
150 int SumOf4(int a, int b, int c, int d) const {
151 return a + b + c + d + value_;
154 int SumOfLast2(Unused, Unused, int a, int b) const { return a + b; }
156 int SumOf5(int a, int b, int c, int d, int e) { return a + b + c + d + e; }
158 int SumOf6(int a, int b, int c, int d, int e, int f) {
159 return a + b + c + d + e + f;
162 std::string Concat7(const char* s1, const char* s2, const char* s3,
163 const char* s4, const char* s5, const char* s6,
165 return std::string(s1) + s2 + s3 + s4 + s5 + s6 + s7;
168 std::string Concat8(const char* s1, const char* s2, const char* s3,
169 const char* s4, const char* s5, const char* s6,
170 const char* s7, const char* s8) {
171 return std::string(s1) + s2 + s3 + s4 + s5 + s6 + s7 + s8;
174 std::string Concat9(const char* s1, const char* s2, const char* s3,
175 const char* s4, const char* s5, const char* s6,
176 const char* s7, const char* s8, const char* s9) {
177 return std::string(s1) + s2 + s3 + s4 + s5 + s6 + s7 + s8 + s9;
180 std::string Concat10(const char* s1, const char* s2, const char* s3,
181 const char* s4, const char* s5, const char* s6,
182 const char* s7, const char* s8, const char* s9,
184 return std::string(s1) + s2 + s3 + s4 + s5 + s6 + s7 + s8 + s9 + s10;
191 // Tests using Invoke() with a nullary function.
192 TEST(InvokeTest, Nullary) {
193 Action<int()> a = Invoke(Nullary); // NOLINT
194 EXPECT_EQ(1, a.Perform(std::make_tuple()));
197 // Tests using Invoke() with a unary function.
198 TEST(InvokeTest, Unary) {
199 Action<bool(int)> a = Invoke(Unary); // NOLINT
200 EXPECT_FALSE(a.Perform(std::make_tuple(1)));
201 EXPECT_TRUE(a.Perform(std::make_tuple(-1)));
204 // Tests using Invoke() with a binary function.
205 TEST(InvokeTest, Binary) {
206 Action<const char*(const char*, short)> a = Invoke(Binary); // NOLINT
207 const char* p = "Hello";
208 EXPECT_EQ(p + 2, a.Perform(std::make_tuple(p, Short(2))));
211 // Tests using Invoke() with a ternary function.
212 TEST(InvokeTest, Ternary) {
213 Action<int(int, char, short)> a = Invoke(Ternary); // NOLINT
214 EXPECT_EQ(6, a.Perform(std::make_tuple(1, '\2', Short(3))));
217 // Tests using Invoke() with a 4-argument function.
218 TEST(InvokeTest, FunctionThatTakes4Arguments) {
219 Action<int(int, int, int, int)> a = Invoke(SumOf4); // NOLINT
220 EXPECT_EQ(1234, a.Perform(std::make_tuple(1000, 200, 30, 4)));
223 // Tests using Invoke() with a 5-argument function.
224 TEST(InvokeTest, FunctionThatTakes5Arguments) {
225 Action<int(int, int, int, int, int)> a = Invoke(SumOf5); // NOLINT
226 EXPECT_EQ(12345, a.Perform(std::make_tuple(10000, 2000, 300, 40, 5)));
229 // Tests using Invoke() with a 6-argument function.
230 TEST(InvokeTest, FunctionThatTakes6Arguments) {
231 Action<int(int, int, int, int, int, int)> a = Invoke(SumOf6); // NOLINT
233 a.Perform(std::make_tuple(100000, 20000, 3000, 400, 50, 6)));
236 // A helper that turns the type of a C-string literal from const
237 // char[N] to const char*.
238 inline const char* CharPtr(const char* s) { return s; }
240 // Tests using Invoke() with a 7-argument function.
241 TEST(InvokeTest, FunctionThatTakes7Arguments) {
242 Action<std::string(const char*, const char*, const char*, const char*,
243 const char*, const char*, const char*)>
246 a.Perform(std::make_tuple(CharPtr("1"), CharPtr("2"), CharPtr("3"),
247 CharPtr("4"), CharPtr("5"), CharPtr("6"),
251 // Tests using Invoke() with a 8-argument function.
252 TEST(InvokeTest, FunctionThatTakes8Arguments) {
253 Action<std::string(const char*, const char*, const char*, const char*,
254 const char*, const char*, const char*, const char*)>
256 EXPECT_EQ("12345678",
257 a.Perform(std::make_tuple(CharPtr("1"), CharPtr("2"), CharPtr("3"),
258 CharPtr("4"), CharPtr("5"), CharPtr("6"),
259 CharPtr("7"), CharPtr("8"))));
262 // Tests using Invoke() with a 9-argument function.
263 TEST(InvokeTest, FunctionThatTakes9Arguments) {
264 Action<std::string(const char*, const char*, const char*, const char*,
265 const char*, const char*, const char*, const char*,
268 EXPECT_EQ("123456789", a.Perform(std::make_tuple(
269 CharPtr("1"), CharPtr("2"), CharPtr("3"),
270 CharPtr("4"), CharPtr("5"), CharPtr("6"),
271 CharPtr("7"), CharPtr("8"), CharPtr("9"))));
274 // Tests using Invoke() with a 10-argument function.
275 TEST(InvokeTest, FunctionThatTakes10Arguments) {
276 Action<std::string(const char*, const char*, const char*, const char*,
277 const char*, const char*, const char*, const char*,
278 const char*, const char*)>
279 a = Invoke(Concat10);
280 EXPECT_EQ("1234567890",
281 a.Perform(std::make_tuple(CharPtr("1"), CharPtr("2"), CharPtr("3"),
282 CharPtr("4"), CharPtr("5"), CharPtr("6"),
283 CharPtr("7"), CharPtr("8"), CharPtr("9"),
287 // Tests using Invoke() with functions with parameters declared as Unused.
288 TEST(InvokeTest, FunctionWithUnusedParameters) {
289 Action<int(int, int, double, const std::string&)> a1 = Invoke(SumOfFirst2);
290 std::tuple<int, int, double, std::string> dummy =
291 std::make_tuple(10, 2, 5.6, std::string("hi"));
292 EXPECT_EQ(12, a1.Perform(dummy));
294 Action<int(int, int, bool, int*)> a2 =
297 23, a2.Perform(std::make_tuple(20, 3, true, static_cast<int*>(nullptr))));
300 // Tests using Invoke() with methods with parameters declared as Unused.
301 TEST(InvokeTest, MethodWithUnusedParameters) {
303 Action<int(std::string, bool, int, int)> a1 = Invoke(&foo, &Foo::SumOfLast2);
304 EXPECT_EQ(12, a1.Perform(std::make_tuple(CharPtr("hi"), true, 10, 2)));
306 Action<int(char, double, int, int)> a2 =
307 Invoke(&foo, &Foo::SumOfLast2);
308 EXPECT_EQ(23, a2.Perform(std::make_tuple('a', 2.5, 20, 3)));
311 // Tests using Invoke() with a functor.
312 TEST(InvokeTest, Functor) {
313 Action<long(long, int)> a = Invoke(plus<long>()); // NOLINT
314 EXPECT_EQ(3L, a.Perform(std::make_tuple(1, 2)));
317 // Tests using Invoke(f) as an action of a compatible type.
318 TEST(InvokeTest, FunctionWithCompatibleType) {
319 Action<long(int, short, char, bool)> a = Invoke(SumOf4); // NOLINT
320 EXPECT_EQ(4321, a.Perform(std::make_tuple(4000, Short(300), Char(20), true)));
323 // Tests using Invoke() with an object pointer and a method pointer.
325 // Tests using Invoke() with a nullary method.
326 TEST(InvokeMethodTest, Nullary) {
328 Action<int()> a = Invoke(&foo, &Foo::Nullary); // NOLINT
329 EXPECT_EQ(123, a.Perform(std::make_tuple()));
332 // Tests using Invoke() with a unary method.
333 TEST(InvokeMethodTest, Unary) {
335 Action<short(long)> a = Invoke(&foo, &Foo::Unary); // NOLINT
336 EXPECT_EQ(4123, a.Perform(std::make_tuple(4000)));
339 // Tests using Invoke() with a binary method.
340 TEST(InvokeMethodTest, Binary) {
342 Action<std::string(const std::string&, char)> a = Invoke(&foo, &Foo::Binary);
343 std::string s("Hell");
344 std::tuple<std::string, char> dummy = std::make_tuple(s, 'o');
345 EXPECT_EQ("Hello", a.Perform(dummy));
348 // Tests using Invoke() with a ternary method.
349 TEST(InvokeMethodTest, Ternary) {
351 Action<int(int, bool, char)> a = Invoke(&foo, &Foo::Ternary); // NOLINT
352 EXPECT_EQ(1124, a.Perform(std::make_tuple(1000, true, Char(1))));
355 // Tests using Invoke() with a 4-argument method.
356 TEST(InvokeMethodTest, MethodThatTakes4Arguments) {
358 Action<int(int, int, int, int)> a = Invoke(&foo, &Foo::SumOf4); // NOLINT
359 EXPECT_EQ(1357, a.Perform(std::make_tuple(1000, 200, 30, 4)));
362 // Tests using Invoke() with a 5-argument method.
363 TEST(InvokeMethodTest, MethodThatTakes5Arguments) {
365 Action<int(int, int, int, int, int)> a = Invoke(&foo, &Foo::SumOf5); // NOLINT
366 EXPECT_EQ(12345, a.Perform(std::make_tuple(10000, 2000, 300, 40, 5)));
369 // Tests using Invoke() with a 6-argument method.
370 TEST(InvokeMethodTest, MethodThatTakes6Arguments) {
372 Action<int(int, int, int, int, int, int)> a = // NOLINT
373 Invoke(&foo, &Foo::SumOf6);
375 a.Perform(std::make_tuple(100000, 20000, 3000, 400, 50, 6)));
378 // Tests using Invoke() with a 7-argument method.
379 TEST(InvokeMethodTest, MethodThatTakes7Arguments) {
381 Action<std::string(const char*, const char*, const char*, const char*,
382 const char*, const char*, const char*)>
383 a = Invoke(&foo, &Foo::Concat7);
385 a.Perform(std::make_tuple(CharPtr("1"), CharPtr("2"), CharPtr("3"),
386 CharPtr("4"), CharPtr("5"), CharPtr("6"),
390 // Tests using Invoke() with a 8-argument method.
391 TEST(InvokeMethodTest, MethodThatTakes8Arguments) {
393 Action<std::string(const char*, const char*, const char*, const char*,
394 const char*, const char*, const char*, const char*)>
395 a = Invoke(&foo, &Foo::Concat8);
396 EXPECT_EQ("12345678",
397 a.Perform(std::make_tuple(CharPtr("1"), CharPtr("2"), CharPtr("3"),
398 CharPtr("4"), CharPtr("5"), CharPtr("6"),
399 CharPtr("7"), CharPtr("8"))));
402 // Tests using Invoke() with a 9-argument method.
403 TEST(InvokeMethodTest, MethodThatTakes9Arguments) {
405 Action<std::string(const char*, const char*, const char*, const char*,
406 const char*, const char*, const char*, const char*,
408 a = Invoke(&foo, &Foo::Concat9);
409 EXPECT_EQ("123456789", a.Perform(std::make_tuple(
410 CharPtr("1"), CharPtr("2"), CharPtr("3"),
411 CharPtr("4"), CharPtr("5"), CharPtr("6"),
412 CharPtr("7"), CharPtr("8"), CharPtr("9"))));
415 // Tests using Invoke() with a 10-argument method.
416 TEST(InvokeMethodTest, MethodThatTakes10Arguments) {
418 Action<std::string(const char*, const char*, const char*, const char*,
419 const char*, const char*, const char*, const char*,
420 const char*, const char*)>
421 a = Invoke(&foo, &Foo::Concat10);
422 EXPECT_EQ("1234567890",
423 a.Perform(std::make_tuple(CharPtr("1"), CharPtr("2"), CharPtr("3"),
424 CharPtr("4"), CharPtr("5"), CharPtr("6"),
425 CharPtr("7"), CharPtr("8"), CharPtr("9"),
429 // Tests using Invoke(f) as an action of a compatible type.
430 TEST(InvokeMethodTest, MethodWithCompatibleType) {
432 Action<long(int, short, char, bool)> a = // NOLINT
433 Invoke(&foo, &Foo::SumOf4);
434 EXPECT_EQ(4444, a.Perform(std::make_tuple(4000, Short(300), Char(20), true)));
437 // Tests using WithoutArgs with an action that takes no argument.
438 TEST(WithoutArgsTest, NoArg) {
439 Action<int(int n)> a = WithoutArgs(Invoke(Nullary)); // NOLINT
440 EXPECT_EQ(1, a.Perform(std::make_tuple(2)));
443 // Tests using WithArg with an action that takes 1 argument.
444 TEST(WithArgTest, OneArg) {
445 Action<bool(double x, int n)> b = WithArg<1>(Invoke(Unary)); // NOLINT
446 EXPECT_TRUE(b.Perform(std::make_tuple(1.5, -1)));
447 EXPECT_FALSE(b.Perform(std::make_tuple(1.5, 1)));
450 TEST(ReturnArgActionTest, WorksForOneArgIntArg0) {
451 const Action<int(int)> a = ReturnArg<0>();
452 EXPECT_EQ(5, a.Perform(std::make_tuple(5)));
455 TEST(ReturnArgActionTest, WorksForMultiArgBoolArg0) {
456 const Action<bool(bool, bool, bool)> a = ReturnArg<0>();
457 EXPECT_TRUE(a.Perform(std::make_tuple(true, false, false)));
460 TEST(ReturnArgActionTest, WorksForMultiArgStringArg2) {
461 const Action<std::string(int, int, std::string, int)> a = ReturnArg<2>();
462 EXPECT_EQ("seven", a.Perform(std::make_tuple(5, 6, std::string("seven"), 8)));
465 TEST(ReturnArgActionTest, WorksForNonConstRefArg0) {
466 const Action<std::string&(std::string&)> a = ReturnArg<0>();
467 std::string s = "12345";
468 EXPECT_EQ(&s, &a.Perform(std::forward_as_tuple(s)));
471 TEST(SaveArgActionTest, WorksForSameType) {
473 const Action<void(int n)> a1 = SaveArg<0>(&result);
474 a1.Perform(std::make_tuple(5));
475 EXPECT_EQ(5, result);
478 TEST(SaveArgActionTest, WorksForCompatibleType) {
480 const Action<void(bool, char)> a1 = SaveArg<1>(&result);
481 a1.Perform(std::make_tuple(true, 'a'));
482 EXPECT_EQ('a', result);
485 TEST(SaveArgPointeeActionTest, WorksForSameType) {
488 const Action<void(const int*)> a1 = SaveArgPointee<0>(&result);
489 a1.Perform(std::make_tuple(&value));
490 EXPECT_EQ(5, result);
493 TEST(SaveArgPointeeActionTest, WorksForCompatibleType) {
496 const Action<void(bool, char*)> a1 = SaveArgPointee<1>(&result);
497 a1.Perform(std::make_tuple(true, &value));
498 EXPECT_EQ('a', result);
501 TEST(SetArgRefereeActionTest, WorksForSameType) {
503 const Action<void(int&)> a1 = SetArgReferee<0>(1);
504 a1.Perform(std::tuple<int&>(value));
508 TEST(SetArgRefereeActionTest, WorksForCompatibleType) {
510 const Action<void(int, int&)> a1 = SetArgReferee<1>('a');
511 a1.Perform(std::tuple<int, int&>(0, value));
512 EXPECT_EQ('a', value);
515 TEST(SetArgRefereeActionTest, WorksWithExtraArguments) {
517 const Action<void(bool, int, int&, const char*)> a1 = SetArgReferee<2>('a');
518 a1.Perform(std::tuple<bool, int, int&, const char*>(true, 0, value, "hi"));
519 EXPECT_EQ('a', value);
522 // A class that can be used to verify that its destructor is called: it will set
523 // the bool provided to the constructor to true when destroyed.
524 class DeletionTester {
526 explicit DeletionTester(bool* is_deleted)
527 : is_deleted_(is_deleted) {
528 // Make sure the bit is set to false.
529 *is_deleted_ = false;
540 TEST(DeleteArgActionTest, OneArg) {
541 bool is_deleted = false;
542 DeletionTester* t = new DeletionTester(&is_deleted);
543 const Action<void(DeletionTester*)> a1 = DeleteArg<0>(); // NOLINT
544 EXPECT_FALSE(is_deleted);
545 a1.Perform(std::make_tuple(t));
546 EXPECT_TRUE(is_deleted);
549 TEST(DeleteArgActionTest, TenArgs) {
550 bool is_deleted = false;
551 DeletionTester* t = new DeletionTester(&is_deleted);
552 const Action<void(bool, int, int, const char*, bool,
553 int, int, int, int, DeletionTester*)> a1 = DeleteArg<9>();
554 EXPECT_FALSE(is_deleted);
555 a1.Perform(std::make_tuple(true, 5, 6, CharPtr("hi"), false, 7, 8, 9, 10, t));
556 EXPECT_TRUE(is_deleted);
559 #if GTEST_HAS_EXCEPTIONS
561 TEST(ThrowActionTest, ThrowsGivenExceptionInVoidFunction) {
562 const Action<void(int n)> a = Throw('a');
563 EXPECT_THROW(a.Perform(std::make_tuple(0)), char);
566 class MyException {};
568 TEST(ThrowActionTest, ThrowsGivenExceptionInNonVoidFunction) {
569 const Action<double(char ch)> a = Throw(MyException());
570 EXPECT_THROW(a.Perform(std::make_tuple('0')), MyException);
573 TEST(ThrowActionTest, ThrowsGivenExceptionInNullaryFunction) {
574 const Action<double()> a = Throw(MyException());
575 EXPECT_THROW(a.Perform(std::make_tuple()), MyException);
581 virtual void Func() {}
584 class MockObject : public Object {
586 ~MockObject() override {}
587 MOCK_METHOD(void, Func, (), (override));
590 TEST(ThrowActionTest, Times0) {
591 EXPECT_NONFATAL_FAILURE(
595 ON_CALL(m, Func()).WillByDefault([] { throw "something"; });
596 EXPECT_CALL(m, Func()).Times(0);
599 // Exception is caught but Times(0) still triggers a failure.
605 #endif // GTEST_HAS_EXCEPTIONS
607 // Tests that SetArrayArgument<N>(first, last) sets the elements of the array
608 // pointed to by the N-th (0-based) argument to values in range [first, last).
609 TEST(SetArrayArgumentTest, SetsTheNthArray) {
610 using MyFunction = void(bool, int*, char*);
611 int numbers[] = { 1, 2, 3 };
612 Action<MyFunction> a = SetArrayArgument<1>(numbers, numbers + 3);
618 a.Perform(std::make_tuple(true, pn, pch));
623 EXPECT_EQ('\0', ch[0]);
624 EXPECT_EQ('\0', ch[1]);
625 EXPECT_EQ('\0', ch[2]);
626 EXPECT_EQ('\0', ch[3]);
628 // Tests first and last are iterators.
629 std::string letters = "abc";
630 a = SetArrayArgument<2>(letters.begin(), letters.end());
631 std::fill_n(n, 4, 0);
632 std::fill_n(ch, 4, '\0');
633 a.Perform(std::make_tuple(true, pn, pch));
638 EXPECT_EQ('a', ch[0]);
639 EXPECT_EQ('b', ch[1]);
640 EXPECT_EQ('c', ch[2]);
641 EXPECT_EQ('\0', ch[3]);
644 // Tests SetArrayArgument<N>(first, last) where first == last.
645 TEST(SetArrayArgumentTest, SetsTheNthArrayWithEmptyRange) {
646 using MyFunction = void(bool, int*);
647 int numbers[] = { 1, 2, 3 };
648 Action<MyFunction> a = SetArrayArgument<1>(numbers, numbers);
652 a.Perform(std::make_tuple(true, pn));
659 // Tests SetArrayArgument<N>(first, last) where *first is convertible
660 // (but not equal) to the argument type.
661 TEST(SetArrayArgumentTest, SetsTheNthArrayWithConvertibleType) {
662 using MyFunction = void(bool, int*);
663 char chars[] = { 97, 98, 99 };
664 Action<MyFunction> a = SetArrayArgument<1>(chars, chars + 3);
666 int codes[4] = { 111, 222, 333, 444 };
668 a.Perform(std::make_tuple(true, pcodes));
669 EXPECT_EQ(97, codes[0]);
670 EXPECT_EQ(98, codes[1]);
671 EXPECT_EQ(99, codes[2]);
672 EXPECT_EQ(444, codes[3]);
675 // Test SetArrayArgument<N>(first, last) with iterator as argument.
676 TEST(SetArrayArgumentTest, SetsTheNthArrayWithIteratorArgument) {
677 using MyFunction = void(bool, std::back_insert_iterator<std::string>);
678 std::string letters = "abc";
679 Action<MyFunction> a = SetArrayArgument<1>(letters.begin(), letters.end());
682 a.Perform(std::make_tuple(true, back_inserter(s)));
683 EXPECT_EQ(letters, s);
686 TEST(ReturnPointeeTest, Works) {
688 const Action<int()> a = ReturnPointee(&n);
689 EXPECT_EQ(42, a.Perform(std::make_tuple()));
692 EXPECT_EQ(43, a.Perform(std::make_tuple()));
695 // Tests InvokeArgument<N>(...).
697 // Tests using InvokeArgument with a nullary function.
698 TEST(InvokeArgumentTest, Function0) {
699 Action<int(int, int (*)())> a = InvokeArgument<1>(); // NOLINT
700 EXPECT_EQ(1, a.Perform(std::make_tuple(2, &Nullary)));
703 // Tests using InvokeArgument with a unary function.
704 TEST(InvokeArgumentTest, Functor1) {
705 Action<int(UnaryFunctor)> a = InvokeArgument<0>(true); // NOLINT
706 EXPECT_EQ(1, a.Perform(std::make_tuple(UnaryFunctor())));
709 // Tests using InvokeArgument with a 5-ary function.
710 TEST(InvokeArgumentTest, Function5) {
711 Action<int(int (*)(int, int, int, int, int))> a = // NOLINT
712 InvokeArgument<0>(10000, 2000, 300, 40, 5);
713 EXPECT_EQ(12345, a.Perform(std::make_tuple(&SumOf5)));
716 // Tests using InvokeArgument with a 5-ary functor.
717 TEST(InvokeArgumentTest, Functor5) {
718 Action<int(SumOf5Functor)> a = // NOLINT
719 InvokeArgument<0>(10000, 2000, 300, 40, 5);
720 EXPECT_EQ(12345, a.Perform(std::make_tuple(SumOf5Functor())));
723 // Tests using InvokeArgument with a 6-ary function.
724 TEST(InvokeArgumentTest, Function6) {
725 Action<int(int (*)(int, int, int, int, int, int))> a = // NOLINT
726 InvokeArgument<0>(100000, 20000, 3000, 400, 50, 6);
727 EXPECT_EQ(123456, a.Perform(std::make_tuple(&SumOf6)));
730 // Tests using InvokeArgument with a 6-ary functor.
731 TEST(InvokeArgumentTest, Functor6) {
732 Action<int(SumOf6Functor)> a = // NOLINT
733 InvokeArgument<0>(100000, 20000, 3000, 400, 50, 6);
734 EXPECT_EQ(123456, a.Perform(std::make_tuple(SumOf6Functor())));
737 // Tests using InvokeArgument with a 7-ary function.
738 TEST(InvokeArgumentTest, Function7) {
739 Action<std::string(std::string(*)(const char*, const char*, const char*,
740 const char*, const char*, const char*,
742 a = InvokeArgument<0>("1", "2", "3", "4", "5", "6", "7");
743 EXPECT_EQ("1234567", a.Perform(std::make_tuple(&Concat7)));
746 // Tests using InvokeArgument with a 8-ary function.
747 TEST(InvokeArgumentTest, Function8) {
748 Action<std::string(std::string(*)(const char*, const char*, const char*,
749 const char*, const char*, const char*,
750 const char*, const char*))>
751 a = InvokeArgument<0>("1", "2", "3", "4", "5", "6", "7", "8");
752 EXPECT_EQ("12345678", a.Perform(std::make_tuple(&Concat8)));
755 // Tests using InvokeArgument with a 9-ary function.
756 TEST(InvokeArgumentTest, Function9) {
757 Action<std::string(std::string(*)(const char*, const char*, const char*,
758 const char*, const char*, const char*,
759 const char*, const char*, const char*))>
760 a = InvokeArgument<0>("1", "2", "3", "4", "5", "6", "7", "8", "9");
761 EXPECT_EQ("123456789", a.Perform(std::make_tuple(&Concat9)));
764 // Tests using InvokeArgument with a 10-ary function.
765 TEST(InvokeArgumentTest, Function10) {
766 Action<std::string(std::string(*)(
767 const char*, const char*, const char*, const char*, const char*,
768 const char*, const char*, const char*, const char*, const char*))>
769 a = InvokeArgument<0>("1", "2", "3", "4", "5", "6", "7", "8", "9", "0");
770 EXPECT_EQ("1234567890", a.Perform(std::make_tuple(&Concat10)));
773 // Tests using InvokeArgument with a function that takes a pointer argument.
774 TEST(InvokeArgumentTest, ByPointerFunction) {
775 Action<const char*(const char* (*)(const char* input, short n))> // NOLINT
776 a = InvokeArgument<0>(static_cast<const char*>("Hi"), Short(1));
777 EXPECT_STREQ("i", a.Perform(std::make_tuple(&Binary)));
780 // Tests using InvokeArgument with a function that takes a const char*
781 // by passing it a C-string literal.
782 TEST(InvokeArgumentTest, FunctionWithCStringLiteral) {
783 Action<const char*(const char* (*)(const char* input, short n))> // NOLINT
784 a = InvokeArgument<0>("Hi", Short(1));
785 EXPECT_STREQ("i", a.Perform(std::make_tuple(&Binary)));
788 // Tests using InvokeArgument with a function that takes a const reference.
789 TEST(InvokeArgumentTest, ByConstReferenceFunction) {
790 Action<bool(bool (*function)(const std::string& s))> a = // NOLINT
791 InvokeArgument<0>(std::string("Hi"));
792 // When action 'a' is constructed, it makes a copy of the temporary
793 // string object passed to it, so it's OK to use 'a' later, when the
794 // temporary object has already died.
795 EXPECT_TRUE(a.Perform(std::make_tuple(&ByConstRef)));
798 // Tests using InvokeArgument with ByRef() and a function that takes a
800 TEST(InvokeArgumentTest, ByExplicitConstReferenceFunction) {
801 Action<bool(bool (*)(const double& x))> a = // NOLINT
802 InvokeArgument<0>(ByRef(g_double));
803 // The above line calls ByRef() on a const value.
804 EXPECT_TRUE(a.Perform(std::make_tuple(&ReferencesGlobalDouble)));
807 a = InvokeArgument<0>(ByRef(x)); // This calls ByRef() on a non-const.
808 EXPECT_FALSE(a.Perform(std::make_tuple(&ReferencesGlobalDouble)));
811 // Tests DoAll(a1, a2).
812 TEST(DoAllTest, TwoActions) {
814 Action<int(int*)> a = DoAll(SetArgPointee<0>(1), // NOLINT
816 EXPECT_EQ(2, a.Perform(std::make_tuple(&n)));
820 // Tests DoAll(a1, a2, a3).
821 TEST(DoAllTest, ThreeActions) {
823 Action<int(int*, int*)> a = DoAll(SetArgPointee<0>(1), // NOLINT
824 SetArgPointee<1>(2), Return(3));
825 EXPECT_EQ(3, a.Perform(std::make_tuple(&m, &n)));
830 // Tests DoAll(a1, a2, a3, a4).
831 TEST(DoAllTest, FourActions) {
834 Action<int(int*, int*, char*)> a = // NOLINT
835 DoAll(SetArgPointee<0>(1), SetArgPointee<1>(2), SetArgPointee<2>('a'),
837 EXPECT_EQ(3, a.Perform(std::make_tuple(&m, &n, &ch)));
843 // Tests DoAll(a1, a2, a3, a4, a5).
844 TEST(DoAllTest, FiveActions) {
846 char a = '\0', b = '\0';
847 Action<int(int*, int*, char*, char*)> action = // NOLINT
848 DoAll(SetArgPointee<0>(1), SetArgPointee<1>(2), SetArgPointee<2>('a'),
849 SetArgPointee<3>('b'), Return(3));
850 EXPECT_EQ(3, action.Perform(std::make_tuple(&m, &n, &a, &b)));
857 // Tests DoAll(a1, a2, ..., a6).
858 TEST(DoAllTest, SixActions) {
860 char a = '\0', b = '\0', c = '\0';
861 Action<int(int*, int*, char*, char*, char*)> action = // NOLINT
862 DoAll(SetArgPointee<0>(1), SetArgPointee<1>(2), SetArgPointee<2>('a'),
863 SetArgPointee<3>('b'), SetArgPointee<4>('c'), Return(3));
864 EXPECT_EQ(3, action.Perform(std::make_tuple(&m, &n, &a, &b, &c)));
872 // Tests DoAll(a1, a2, ..., a7).
873 TEST(DoAllTest, SevenActions) {
875 char a = '\0', b = '\0', c = '\0', d = '\0';
876 Action<int(int*, int*, char*, char*, char*, char*)> action = // NOLINT
877 DoAll(SetArgPointee<0>(1), SetArgPointee<1>(2), SetArgPointee<2>('a'),
878 SetArgPointee<3>('b'), SetArgPointee<4>('c'), SetArgPointee<5>('d'),
880 EXPECT_EQ(3, action.Perform(std::make_tuple(&m, &n, &a, &b, &c, &d)));
889 // Tests DoAll(a1, a2, ..., a8).
890 TEST(DoAllTest, EightActions) {
892 char a = '\0', b = '\0', c = '\0', d = '\0', e = '\0';
893 Action<int(int*, int*, char*, char*, char*, char*, // NOLINT
896 DoAll(SetArgPointee<0>(1), SetArgPointee<1>(2), SetArgPointee<2>('a'),
897 SetArgPointee<3>('b'), SetArgPointee<4>('c'),
898 SetArgPointee<5>('d'), SetArgPointee<6>('e'), Return(3));
899 EXPECT_EQ(3, action.Perform(std::make_tuple(&m, &n, &a, &b, &c, &d, &e)));
909 // Tests DoAll(a1, a2, ..., a9).
910 TEST(DoAllTest, NineActions) {
912 char a = '\0', b = '\0', c = '\0', d = '\0', e = '\0', f = '\0';
913 Action<int(int*, int*, char*, char*, char*, char*, // NOLINT
915 action = DoAll(SetArgPointee<0>(1), SetArgPointee<1>(2),
916 SetArgPointee<2>('a'), SetArgPointee<3>('b'),
917 SetArgPointee<4>('c'), SetArgPointee<5>('d'),
918 SetArgPointee<6>('e'), SetArgPointee<7>('f'), Return(3));
919 EXPECT_EQ(3, action.Perform(std::make_tuple(&m, &n, &a, &b, &c, &d, &e, &f)));
930 // Tests DoAll(a1, a2, ..., a10).
931 TEST(DoAllTest, TenActions) {
933 char a = '\0', b = '\0', c = '\0', d = '\0';
934 char e = '\0', f = '\0', g = '\0';
935 Action<int(int*, int*, char*, char*, char*, char*, // NOLINT
936 char*, char*, char*)>
938 DoAll(SetArgPointee<0>(1), SetArgPointee<1>(2), SetArgPointee<2>('a'),
939 SetArgPointee<3>('b'), SetArgPointee<4>('c'),
940 SetArgPointee<5>('d'), SetArgPointee<6>('e'),
941 SetArgPointee<7>('f'), SetArgPointee<8>('g'), Return(3));
943 3, action.Perform(std::make_tuple(&m, &n, &a, &b, &c, &d, &e, &f, &g)));
955 TEST(DoAllTest, NoArgs) {
956 bool ran_first = false;
958 DoAll([&] { ran_first = true; }, [&] { return ran_first; });
959 EXPECT_TRUE(a.Perform({}));
962 TEST(DoAllTest, MoveOnlyArgs) {
963 bool ran_first = false;
964 Action<int(std::unique_ptr<int>)> a =
965 DoAll(InvokeWithoutArgs([&] { ran_first = true; }),
966 [](std::unique_ptr<int> p) { return *p; });
967 EXPECT_EQ(7, a.Perform(std::make_tuple(std::unique_ptr<int>(new int(7)))));
968 EXPECT_TRUE(ran_first);
971 TEST(DoAllTest, ImplicitlyConvertsActionArguments) {
972 bool ran_first = false;
973 // Action<void(std::vector<int>)> isn't an
974 // Action<void(const std::vector<int>&) but can be converted.
975 Action<void(std::vector<int>)> first = [&] { ran_first = true; };
976 Action<int(std::vector<int>)> a =
977 DoAll(first, [](std::vector<int> arg) { return arg.front(); });
978 EXPECT_EQ(7, a.Perform(std::make_tuple(std::vector<int>{7})));
979 EXPECT_TRUE(ran_first);
982 // The ACTION*() macros trigger warning C4100 (unreferenced formal
983 // parameter) in MSVC with -W4. Unfortunately they cannot be fixed in
984 // the macro definition, as the warnings are generated when the macro
985 // is expanded and macro expansion cannot contain #pragma. Therefore
986 // we suppress them here.
987 // Also suppress C4503 decorated name length exceeded, name was truncated
989 #pragma warning(push)
990 #pragma warning(disable : 4100)
991 #pragma warning(disable : 4503)
993 // Tests the ACTION*() macro family.
995 // Tests that ACTION() can define an action that doesn't reference the
996 // mock function arguments.
997 ACTION(Return5) { return 5; }
999 TEST(ActionMacroTest, WorksWhenNotReferencingArguments) {
1000 Action<double()> a1 = Return5();
1001 EXPECT_DOUBLE_EQ(5, a1.Perform(std::make_tuple()));
1003 Action<int(double, bool)> a2 = Return5();
1004 EXPECT_EQ(5, a2.Perform(std::make_tuple(1, true)));
1007 // Tests that ACTION() can define an action that returns void.
1008 ACTION(IncrementArg1) { (*arg1)++; }
1010 TEST(ActionMacroTest, WorksWhenReturningVoid) {
1011 Action<void(int, int*)> a1 = IncrementArg1();
1013 a1.Perform(std::make_tuple(5, &n));
1017 // Tests that the body of ACTION() can reference the type of the
1019 ACTION(IncrementArg2) {
1020 StaticAssertTypeEq<int*, arg2_type>();
1021 arg2_type temp = arg2;
1025 TEST(ActionMacroTest, CanReferenceArgumentType) {
1026 Action<void(int, bool, int*)> a1 = IncrementArg2();
1028 a1.Perform(std::make_tuple(5, false, &n));
1032 // Tests that the body of ACTION() can reference the argument tuple
1033 // via args_type and args.
1035 StaticAssertTypeEq<std::tuple<int, char, int*>, args_type>();
1036 args_type args_copy = args;
1037 return std::get<0>(args_copy) + std::get<1>(args_copy);
1040 TEST(ActionMacroTest, CanReferenceArgumentTuple) {
1041 Action<int(int, char, int*)> a1 = Sum2();
1043 EXPECT_EQ(11, a1.Perform(std::make_tuple(5, Char(6), &dummy)));
1048 // Tests that the body of ACTION() can reference the mock function
1050 int Dummy(bool flag) { return flag ? 1 : 0; }
1054 ACTION(InvokeDummy) {
1055 StaticAssertTypeEq<int(bool), function_type>();
1056 function_type* fp = &Dummy;
1060 TEST(ActionMacroTest, CanReferenceMockFunctionType) {
1061 Action<int(bool)> a1 = InvokeDummy();
1062 EXPECT_EQ(1, a1.Perform(std::make_tuple(true)));
1063 EXPECT_EQ(1, a1.Perform(std::make_tuple(false)));
1066 // Tests that the body of ACTION() can reference the mock function's
1068 ACTION(InvokeDummy2) {
1069 StaticAssertTypeEq<int, return_type>();
1070 return_type result = Dummy(true);
1074 TEST(ActionMacroTest, CanReferenceMockFunctionReturnType) {
1075 Action<int(bool)> a1 = InvokeDummy2();
1076 EXPECT_EQ(1, a1.Perform(std::make_tuple(true)));
1077 EXPECT_EQ(1, a1.Perform(std::make_tuple(false)));
1080 // Tests that ACTION() works for arguments passed by const reference.
1081 ACTION(ReturnAddrOfConstBoolReferenceArg) {
1082 StaticAssertTypeEq<const bool&, arg1_type>();
1086 TEST(ActionMacroTest, WorksForConstReferenceArg) {
1087 Action<const bool*(int, const bool&)> a = ReturnAddrOfConstBoolReferenceArg();
1088 const bool b = false;
1089 EXPECT_EQ(&b, a.Perform(std::tuple<int, const bool&>(0, b)));
1092 // Tests that ACTION() works for arguments passed by non-const reference.
1093 ACTION(ReturnAddrOfIntReferenceArg) {
1094 StaticAssertTypeEq<int&, arg0_type>();
1098 TEST(ActionMacroTest, WorksForNonConstReferenceArg) {
1099 Action<int*(int&, bool, int)> a = ReturnAddrOfIntReferenceArg();
1101 EXPECT_EQ(&n, a.Perform(std::tuple<int&, bool, int>(n, true, 1)));
1104 // Tests that ACTION() can be used in a namespace.
1105 namespace action_test {
1106 ACTION(Sum) { return arg0 + arg1; }
1107 } // namespace action_test
1109 TEST(ActionMacroTest, WorksInNamespace) {
1110 Action<int(int, int)> a1 = action_test::Sum();
1111 EXPECT_EQ(3, a1.Perform(std::make_tuple(1, 2)));
1114 // Tests that the same ACTION definition works for mock functions with
1115 // different argument numbers.
1116 ACTION(PlusTwo) { return arg0 + 2; }
1118 TEST(ActionMacroTest, WorksForDifferentArgumentNumbers) {
1119 Action<int(int)> a1 = PlusTwo();
1120 EXPECT_EQ(4, a1.Perform(std::make_tuple(2)));
1122 Action<double(float, void*)> a2 = PlusTwo();
1124 EXPECT_DOUBLE_EQ(6, a2.Perform(std::make_tuple(4.0f, &dummy)));
1127 // Tests that ACTION_P can define a parameterized action.
1128 ACTION_P(Plus, n) { return arg0 + n; }
1130 TEST(ActionPMacroTest, DefinesParameterizedAction) {
1131 Action<int(int m, bool t)> a1 = Plus(9);
1132 EXPECT_EQ(10, a1.Perform(std::make_tuple(1, true)));
1135 // Tests that the body of ACTION_P can reference the argument types
1136 // and the parameter type.
1137 ACTION_P(TypedPlus, n) {
1138 arg0_type t1 = arg0;
1143 TEST(ActionPMacroTest, CanReferenceArgumentAndParameterTypes) {
1144 Action<int(char m, bool t)> a1 = TypedPlus(9);
1145 EXPECT_EQ(10, a1.Perform(std::make_tuple(Char(1), true)));
1148 // Tests that a parameterized action can be used in any mock function
1149 // whose type is compatible.
1150 TEST(ActionPMacroTest, WorksInCompatibleMockFunction) {
1151 Action<std::string(const std::string& s)> a1 = Plus("tail");
1152 const std::string re = "re";
1153 std::tuple<const std::string> dummy = std::make_tuple(re);
1154 EXPECT_EQ("retail", a1.Perform(dummy));
1157 // Tests that we can use ACTION*() to define actions overloaded on the
1158 // number of parameters.
1160 ACTION(OverloadedAction) { return arg0 ? arg1 : "hello"; }
1162 ACTION_P(OverloadedAction, default_value) {
1163 return arg0 ? arg1 : default_value;
1166 ACTION_P2(OverloadedAction, true_value, false_value) {
1167 return arg0 ? true_value : false_value;
1170 TEST(ActionMacroTest, CanDefineOverloadedActions) {
1171 using MyAction = Action<const char*(bool, const char*)>;
1173 const MyAction a1 = OverloadedAction();
1174 EXPECT_STREQ("hello", a1.Perform(std::make_tuple(false, CharPtr("world"))));
1175 EXPECT_STREQ("world", a1.Perform(std::make_tuple(true, CharPtr("world"))));
1177 const MyAction a2 = OverloadedAction("hi");
1178 EXPECT_STREQ("hi", a2.Perform(std::make_tuple(false, CharPtr("world"))));
1179 EXPECT_STREQ("world", a2.Perform(std::make_tuple(true, CharPtr("world"))));
1181 const MyAction a3 = OverloadedAction("hi", "you");
1182 EXPECT_STREQ("hi", a3.Perform(std::make_tuple(true, CharPtr("world"))));
1183 EXPECT_STREQ("you", a3.Perform(std::make_tuple(false, CharPtr("world"))));
1186 // Tests ACTION_Pn where n >= 3.
1188 ACTION_P3(Plus, m, n, k) { return arg0 + m + n + k; }
1190 TEST(ActionPnMacroTest, WorksFor3Parameters) {
1191 Action<double(int m, bool t)> a1 = Plus(100, 20, 3.4);
1192 EXPECT_DOUBLE_EQ(3123.4, a1.Perform(std::make_tuple(3000, true)));
1194 Action<std::string(const std::string& s)> a2 = Plus("tail", "-", ">");
1195 const std::string re = "re";
1196 std::tuple<const std::string> dummy = std::make_tuple(re);
1197 EXPECT_EQ("retail->", a2.Perform(dummy));
1200 ACTION_P4(Plus, p0, p1, p2, p3) { return arg0 + p0 + p1 + p2 + p3; }
1202 TEST(ActionPnMacroTest, WorksFor4Parameters) {
1203 Action<int(int)> a1 = Plus(1, 2, 3, 4);
1204 EXPECT_EQ(10 + 1 + 2 + 3 + 4, a1.Perform(std::make_tuple(10)));
1207 ACTION_P5(Plus, p0, p1, p2, p3, p4) { return arg0 + p0 + p1 + p2 + p3 + p4; }
1209 TEST(ActionPnMacroTest, WorksFor5Parameters) {
1210 Action<int(int)> a1 = Plus(1, 2, 3, 4, 5);
1211 EXPECT_EQ(10 + 1 + 2 + 3 + 4 + 5, a1.Perform(std::make_tuple(10)));
1214 ACTION_P6(Plus, p0, p1, p2, p3, p4, p5) {
1215 return arg0 + p0 + p1 + p2 + p3 + p4 + p5;
1218 TEST(ActionPnMacroTest, WorksFor6Parameters) {
1219 Action<int(int)> a1 = Plus(1, 2, 3, 4, 5, 6);
1220 EXPECT_EQ(10 + 1 + 2 + 3 + 4 + 5 + 6, a1.Perform(std::make_tuple(10)));
1223 ACTION_P7(Plus, p0, p1, p2, p3, p4, p5, p6) {
1224 return arg0 + p0 + p1 + p2 + p3 + p4 + p5 + p6;
1227 TEST(ActionPnMacroTest, WorksFor7Parameters) {
1228 Action<int(int)> a1 = Plus(1, 2, 3, 4, 5, 6, 7);
1229 EXPECT_EQ(10 + 1 + 2 + 3 + 4 + 5 + 6 + 7, a1.Perform(std::make_tuple(10)));
1232 ACTION_P8(Plus, p0, p1, p2, p3, p4, p5, p6, p7) {
1233 return arg0 + p0 + p1 + p2 + p3 + p4 + p5 + p6 + p7;
1236 TEST(ActionPnMacroTest, WorksFor8Parameters) {
1237 Action<int(int)> a1 = Plus(1, 2, 3, 4, 5, 6, 7, 8);
1238 EXPECT_EQ(10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8,
1239 a1.Perform(std::make_tuple(10)));
1242 ACTION_P9(Plus, p0, p1, p2, p3, p4, p5, p6, p7, p8) {
1243 return arg0 + p0 + p1 + p2 + p3 + p4 + p5 + p6 + p7 + p8;
1246 TEST(ActionPnMacroTest, WorksFor9Parameters) {
1247 Action<int(int)> a1 = Plus(1, 2, 3, 4, 5, 6, 7, 8, 9);
1248 EXPECT_EQ(10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9,
1249 a1.Perform(std::make_tuple(10)));
1252 ACTION_P10(Plus, p0, p1, p2, p3, p4, p5, p6, p7, p8, last_param) {
1253 arg0_type t0 = arg0;
1254 last_param_type t9 = last_param;
1255 return t0 + p0 + p1 + p2 + p3 + p4 + p5 + p6 + p7 + p8 + t9;
1258 TEST(ActionPnMacroTest, WorksFor10Parameters) {
1259 Action<int(int)> a1 = Plus(1, 2, 3, 4, 5, 6, 7, 8, 9, 10);
1260 EXPECT_EQ(10 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10,
1261 a1.Perform(std::make_tuple(10)));
1264 // Tests that the action body can promote the parameter types.
1266 ACTION_P2(PadArgument, prefix, suffix) {
1267 // The following lines promote the two parameters to desired types.
1268 std::string prefix_str(prefix);
1269 char suffix_char = static_cast<char>(suffix);
1270 return prefix_str + arg0 + suffix_char;
1273 TEST(ActionPnMacroTest, SimpleTypePromotion) {
1274 Action<std::string(const char*)> no_promo =
1275 PadArgument(std::string("foo"), 'r');
1276 Action<std::string(const char*)> promo =
1277 PadArgument("foo", static_cast<int>('r'));
1278 EXPECT_EQ("foobar", no_promo.Perform(std::make_tuple(CharPtr("ba"))));
1279 EXPECT_EQ("foobar", promo.Perform(std::make_tuple(CharPtr("ba"))));
1282 // Tests that we can partially restrict parameter types using a
1283 // straight-forward pattern.
1285 // Defines a generic action that doesn't restrict the types of its
1287 ACTION_P3(ConcatImpl, a, b, c) {
1288 std::stringstream ss;
1293 // Next, we try to restrict that either the first parameter is a
1294 // string, or the second parameter is an int.
1296 // Defines a partially specialized wrapper that restricts the first
1297 // parameter to std::string.
1298 template <typename T1, typename T2>
1299 // ConcatImplActionP3 is the class template ACTION_P3 uses to
1300 // implement ConcatImpl. We shouldn't change the name as this
1301 // pattern requires the user to use it directly.
1302 ConcatImplActionP3<std::string, T1, T2> Concat(const std::string& a, T1 b,
1304 GTEST_INTENTIONAL_CONST_COND_PUSH_()
1306 GTEST_INTENTIONAL_CONST_COND_POP_()
1307 // This branch verifies that ConcatImpl() can be invoked without
1308 // explicit template arguments.
1309 return ConcatImpl(a, b, c);
1311 // This branch verifies that ConcatImpl() can also be invoked with
1312 // explicit template arguments. It doesn't really need to be
1313 // executed as this is a compile-time verification.
1314 return ConcatImpl<std::string, T1, T2>(a, b, c);
1318 // Defines another partially specialized wrapper that restricts the
1319 // second parameter to int.
1320 template <typename T1, typename T2>
1321 ConcatImplActionP3<T1, int, T2> Concat(T1 a, int b, T2 c) {
1322 return ConcatImpl(a, b, c);
1325 TEST(ActionPnMacroTest, CanPartiallyRestrictParameterTypes) {
1326 Action<const std::string()> a1 = Concat("Hello", "1", 2);
1327 EXPECT_EQ("Hello12", a1.Perform(std::make_tuple()));
1329 a1 = Concat(1, 2, 3);
1330 EXPECT_EQ("123", a1.Perform(std::make_tuple()));
1333 // Verifies the type of an ACTION*.
1336 ACTION_P(DoFoo, p) {}
1337 ACTION_P2(DoFoo, p0, p1) {}
1339 TEST(ActionPnMacroTest, TypesAreCorrect) {
1340 // DoFoo() must be assignable to a DoFooAction variable.
1341 DoFooAction a0 = DoFoo();
1343 // DoFoo(1) must be assignable to a DoFooActionP variable.
1344 DoFooActionP<int> a1 = DoFoo(1);
1346 // DoFoo(p1, ..., pk) must be assignable to a DoFooActionPk
1347 // variable, and so on.
1348 DoFooActionP2<int, char> a2 = DoFoo(1, '2');
1349 PlusActionP3<int, int, char> a3 = Plus(1, 2, '3');
1350 PlusActionP4<int, int, int, char> a4 = Plus(1, 2, 3, '4');
1351 PlusActionP5<int, int, int, int, char> a5 = Plus(1, 2, 3, 4, '5');
1352 PlusActionP6<int, int, int, int, int, char> a6 = Plus(1, 2, 3, 4, 5, '6');
1353 PlusActionP7<int, int, int, int, int, int, char> a7 =
1354 Plus(1, 2, 3, 4, 5, 6, '7');
1355 PlusActionP8<int, int, int, int, int, int, int, char> a8 =
1356 Plus(1, 2, 3, 4, 5, 6, 7, '8');
1357 PlusActionP9<int, int, int, int, int, int, int, int, char> a9 =
1358 Plus(1, 2, 3, 4, 5, 6, 7, 8, '9');
1359 PlusActionP10<int, int, int, int, int, int, int, int, int, char> a10 =
1360 Plus(1, 2, 3, 4, 5, 6, 7, 8, 9, '0');
1362 // Avoid "unused variable" warnings.
1376 // Tests that an ACTION_P*() action can be explicitly instantiated
1377 // with reference-typed parameters.
1379 ACTION_P(Plus1, x) { return x; }
1380 ACTION_P2(Plus2, x, y) { return x + y; }
1381 ACTION_P3(Plus3, x, y, z) { return x + y + z; }
1382 ACTION_P10(Plus10, a0, a1, a2, a3, a4, a5, a6, a7, a8, a9) {
1383 return a0 + a1 + a2 + a3 + a4 + a5 + a6 + a7 + a8 + a9;
1386 TEST(ActionPnMacroTest, CanExplicitlyInstantiateWithReferenceTypes) {
1387 int x = 1, y = 2, z = 3;
1388 const std::tuple<> empty = std::make_tuple();
1390 Action<int()> a = Plus1<int&>(x);
1391 EXPECT_EQ(1, a.Perform(empty));
1393 a = Plus2<const int&, int&>(x, y);
1394 EXPECT_EQ(3, a.Perform(empty));
1396 a = Plus3<int&, const int&, int&>(x, y, z);
1397 EXPECT_EQ(6, a.Perform(empty));
1399 int n[10] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
1400 a = Plus10<const int&, int&, const int&, int&, const int&, int&, const int&,
1401 int&, const int&, int&>(n[0], n[1], n[2], n[3], n[4], n[5], n[6],
1403 EXPECT_EQ(55, a.Perform(empty));
1406 class TenArgConstructorClass {
1408 TenArgConstructorClass(int a1, int a2, int a3, int a4, int a5, int a6, int a7,
1409 int a8, int a9, int a10)
1410 : value_(a1 + a2 + a3 + a4 + a5 + a6 + a7 + a8 + a9 + a10) {}
1414 // Tests that ACTION_TEMPLATE works when there is no value parameter.
1415 ACTION_TEMPLATE(CreateNew, HAS_1_TEMPLATE_PARAMS(typename, T),
1416 AND_0_VALUE_PARAMS()) {
1420 TEST(ActionTemplateTest, WorksWithoutValueParam) {
1421 const Action<int*()> a = CreateNew<int>();
1422 int* p = a.Perform(std::make_tuple());
1426 // Tests that ACTION_TEMPLATE works when there are value parameters.
1427 ACTION_TEMPLATE(CreateNew, HAS_1_TEMPLATE_PARAMS(typename, T),
1428 AND_1_VALUE_PARAMS(a0)) {
1432 TEST(ActionTemplateTest, WorksWithValueParams) {
1433 const Action<int*()> a = CreateNew<int>(42);
1434 int* p = a.Perform(std::make_tuple());
1439 // Tests that ACTION_TEMPLATE works for integral template parameters.
1440 ACTION_TEMPLATE(MyDeleteArg, HAS_1_TEMPLATE_PARAMS(int, k),
1441 AND_0_VALUE_PARAMS()) {
1442 delete std::get<k>(args);
1445 // Resets a bool variable in the destructor.
1446 class BoolResetter {
1448 explicit BoolResetter(bool* value) : value_(value) {}
1449 ~BoolResetter() { *value_ = false; }
1455 TEST(ActionTemplateTest, WorksForIntegralTemplateParams) {
1456 const Action<void(int*, BoolResetter*)> a = MyDeleteArg<1>();
1459 auto* resetter = new BoolResetter(&b);
1460 a.Perform(std::make_tuple(&n, resetter));
1461 EXPECT_FALSE(b); // Verifies that resetter is deleted.
1464 // Tests that ACTION_TEMPLATES works for template template parameters.
1465 ACTION_TEMPLATE(ReturnSmartPointer,
1466 HAS_1_TEMPLATE_PARAMS(template <typename Pointee> class,
1468 AND_1_VALUE_PARAMS(pointee)) {
1469 return Pointer<pointee_type>(new pointee_type(pointee));
1472 TEST(ActionTemplateTest, WorksForTemplateTemplateParameters) {
1473 const Action<std::shared_ptr<int>()> a =
1474 ReturnSmartPointer<std::shared_ptr>(42);
1475 std::shared_ptr<int> p = a.Perform(std::make_tuple());
1479 // Tests that ACTION_TEMPLATE works for 10 template parameters.
1480 template <typename T1, typename T2, typename T3, int k4, bool k5,
1481 unsigned int k6, typename T7, typename T8, typename T9>
1482 struct GiantTemplate {
1484 explicit GiantTemplate(int a_value) : value(a_value) {}
1488 ACTION_TEMPLATE(ReturnGiant,
1489 HAS_10_TEMPLATE_PARAMS(typename, T1, typename, T2, typename, T3,
1490 int, k4, bool, k5, unsigned int, k6,
1491 class, T7, class, T8, class, T9,
1492 template <typename T> class, T10),
1493 AND_1_VALUE_PARAMS(value)) {
1494 return GiantTemplate<T10<T1>, T2, T3, k4, k5, k6, T7, T8, T9>(value);
1497 TEST(ActionTemplateTest, WorksFor10TemplateParameters) {
1498 using Giant = GiantTemplate<std::shared_ptr<int>, bool, double, 5, true, 6,
1499 char, unsigned, int>;
1500 const Action<Giant()> a = ReturnGiant<int, bool, double, 5, true, 6, char,
1501 unsigned, int, std::shared_ptr>(42);
1502 Giant giant = a.Perform(std::make_tuple());
1503 EXPECT_EQ(42, giant.value);
1506 // Tests that ACTION_TEMPLATE works for 10 value parameters.
1507 ACTION_TEMPLATE(ReturnSum, HAS_1_TEMPLATE_PARAMS(typename, Number),
1508 AND_10_VALUE_PARAMS(v1, v2, v3, v4, v5, v6, v7, v8, v9, v10)) {
1509 return static_cast<Number>(v1) + v2 + v3 + v4 + v5 + v6 + v7 + v8 + v9 + v10;
1512 TEST(ActionTemplateTest, WorksFor10ValueParameters) {
1513 const Action<int()> a = ReturnSum<int>(1, 2, 3, 4, 5, 6, 7, 8, 9, 10);
1514 EXPECT_EQ(55, a.Perform(std::make_tuple()));
1517 // Tests that ACTION_TEMPLATE and ACTION/ACTION_P* can be overloaded
1518 // on the number of value parameters.
1520 ACTION(ReturnSum) { return 0; }
1522 ACTION_P(ReturnSum, x) { return x; }
1524 ACTION_TEMPLATE(ReturnSum, HAS_1_TEMPLATE_PARAMS(typename, Number),
1525 AND_2_VALUE_PARAMS(v1, v2)) {
1526 return static_cast<Number>(v1) + v2;
1529 ACTION_TEMPLATE(ReturnSum, HAS_1_TEMPLATE_PARAMS(typename, Number),
1530 AND_3_VALUE_PARAMS(v1, v2, v3)) {
1531 return static_cast<Number>(v1) + v2 + v3;
1534 ACTION_TEMPLATE(ReturnSum, HAS_2_TEMPLATE_PARAMS(typename, Number, int, k),
1535 AND_4_VALUE_PARAMS(v1, v2, v3, v4)) {
1536 return static_cast<Number>(v1) + v2 + v3 + v4 + k;
1539 TEST(ActionTemplateTest, CanBeOverloadedOnNumberOfValueParameters) {
1540 const Action<int()> a0 = ReturnSum();
1541 const Action<int()> a1 = ReturnSum(1);
1542 const Action<int()> a2 = ReturnSum<int>(1, 2);
1543 const Action<int()> a3 = ReturnSum<int>(1, 2, 3);
1544 const Action<int()> a4 = ReturnSum<int, 10000>(2000, 300, 40, 5);
1545 EXPECT_EQ(0, a0.Perform(std::make_tuple()));
1546 EXPECT_EQ(1, a1.Perform(std::make_tuple()));
1547 EXPECT_EQ(3, a2.Perform(std::make_tuple()));
1548 EXPECT_EQ(6, a3.Perform(std::make_tuple()));
1549 EXPECT_EQ(12345, a4.Perform(std::make_tuple()));
1552 } // namespace gmock_more_actions_test
1553 } // namespace testing