diff options
Diffstat (limited to 'googlemock/test/gmock-actions_test.cc')
| -rw-r--r-- | googlemock/test/gmock-actions_test.cc | 160 |
1 files changed, 159 insertions, 1 deletions
diff --git a/googlemock/test/gmock-actions_test.cc b/googlemock/test/gmock-actions_test.cc index 4601157..5dd4846 100644 --- a/googlemock/test/gmock-actions_test.cc +++ b/googlemock/test/gmock-actions_test.cc @@ -33,6 +33,15 @@ // // This file tests the built-in actions. +// Silence C4800 (C4800: 'int *const ': forcing value +// to bool 'true' or 'false') for MSVC 14,15 +#ifdef _MSC_VER +#if _MSC_VER <= 1900 +# pragma warning(push) +# pragma warning(disable:4800) +#endif +#endif + #include "gmock/gmock-actions.h" #include <algorithm> #include <iterator> @@ -65,6 +74,7 @@ using testing::ReturnRef; using testing::ReturnRefOfCopy; using testing::SetArgPointee; using testing::SetArgumentPointee; +using testing::Unused; using testing::_; using testing::get; using testing::internal::BuiltInDefaultValue; @@ -705,6 +715,8 @@ class MockClass { MOCK_METHOD0(MakeUniqueBase, std::unique_ptr<Base>()); MOCK_METHOD0(MakeVectorUnique, std::vector<std::unique_ptr<int>>()); MOCK_METHOD1(TakeUnique, int(std::unique_ptr<int>)); + MOCK_METHOD2(TakeUnique, + int(const std::unique_ptr<int>&, std::unique_ptr<int>)); #endif private: @@ -756,7 +768,7 @@ TEST(DoDefaultDeathTest, DiesIfUsedInCompositeAction) { } // Tests that DoDefault() returns the default value set by -// DefaultValue<T>::Set() when it's not overridden by an ON_CALL(). +// DefaultValue<T>::Set() when it's not overriden by an ON_CALL(). TEST(DoDefaultTest, ReturnsUserSpecifiedPerTypeDefaultValueWhenThereIsOne) { DefaultValue<int>::Set(1); MockClass mock; @@ -1411,6 +1423,152 @@ TEST(MockMethodTest, CanReturnMoveOnlyValue_Invoke) { EXPECT_EQ(7, *vresult[0]); } +TEST(MockMethodTest, CanTakeMoveOnlyValue) { + MockClass mock; + auto make = [](int i) { return std::unique_ptr<int>(new int(i)); }; + + EXPECT_CALL(mock, TakeUnique(_)).WillRepeatedly([](std::unique_ptr<int> i) { + return *i; + }); + // DoAll() does not compile, since it would move from its arguments twice. + // EXPECT_CALL(mock, TakeUnique(_, _)) + // .WillRepeatedly(DoAll(Invoke([](std::unique_ptr<int> j) {}), + // Return(1))); + EXPECT_CALL(mock, TakeUnique(testing::Pointee(7))) + .WillOnce(Return(-7)) + .RetiresOnSaturation(); + EXPECT_CALL(mock, TakeUnique(testing::IsNull())) + .WillOnce(Return(-1)) + .RetiresOnSaturation(); + + EXPECT_EQ(5, mock.TakeUnique(make(5))); + EXPECT_EQ(-7, mock.TakeUnique(make(7))); + EXPECT_EQ(7, mock.TakeUnique(make(7))); + EXPECT_EQ(7, mock.TakeUnique(make(7))); + EXPECT_EQ(-1, mock.TakeUnique({})); + + // Some arguments are moved, some passed by reference. + auto lvalue = make(6); + EXPECT_CALL(mock, TakeUnique(_, _)) + .WillOnce([](const std::unique_ptr<int>& i, std::unique_ptr<int> j) { + return *i * *j; + }); + EXPECT_EQ(42, mock.TakeUnique(lvalue, make(7))); + + // The unique_ptr can be saved by the action. + std::unique_ptr<int> saved; + EXPECT_CALL(mock, TakeUnique(_)).WillOnce([&saved](std::unique_ptr<int> i) { + saved = std::move(i); + return 0; + }); + EXPECT_EQ(0, mock.TakeUnique(make(42))); + EXPECT_EQ(42, *saved); +} + #endif // GTEST_HAS_STD_UNIQUE_PTR_ +#if GTEST_LANG_CXX11 +// Tests for std::function based action. + +int Add(int val, int& ref, int* ptr) { // NOLINT + int result = val + ref + *ptr; + ref = 42; + *ptr = 43; + return result; +} + +int Deref(std::unique_ptr<int> ptr) { return *ptr; } + +struct Double { + template <typename T> + T operator()(T t) { return 2 * t; } +}; + +std::unique_ptr<int> UniqueInt(int i) { + return std::unique_ptr<int>(new int(i)); +} + +TEST(FunctorActionTest, ActionFromFunction) { + Action<int(int, int&, int*)> a = &Add; + int x = 1, y = 2, z = 3; + EXPECT_EQ(6, a.Perform(std::forward_as_tuple(x, y, &z))); + EXPECT_EQ(42, y); + EXPECT_EQ(43, z); + + Action<int(std::unique_ptr<int>)> a1 = &Deref; + EXPECT_EQ(7, a1.Perform(std::make_tuple(UniqueInt(7)))); +} + +TEST(FunctorActionTest, ActionFromLambda) { + Action<int(bool, int)> a1 = [](bool b, int i) { return b ? i : 0; }; + EXPECT_EQ(5, a1.Perform(make_tuple(true, 5))); + EXPECT_EQ(0, a1.Perform(make_tuple(false, 5))); + + std::unique_ptr<int> saved; + Action<void(std::unique_ptr<int>)> a2 = [&saved](std::unique_ptr<int> p) { + saved = std::move(p); + }; + a2.Perform(make_tuple(UniqueInt(5))); + EXPECT_EQ(5, *saved); +} + +TEST(FunctorActionTest, PolymorphicFunctor) { + Action<int(int)> ai = Double(); + EXPECT_EQ(2, ai.Perform(make_tuple(1))); + Action<double(double)> ad = Double(); // Double? Double double! + EXPECT_EQ(3.0, ad.Perform(make_tuple(1.5))); +} + +TEST(FunctorActionTest, TypeConversion) { + // Numeric promotions are allowed. + const Action<bool(int)> a1 = [](int i) { return i > 1; }; + const Action<int(bool)> a2 = Action<int(bool)>(a1); + EXPECT_EQ(1, a1.Perform(make_tuple(42))); + EXPECT_EQ(0, a2.Perform(make_tuple(42))); + + // Implicit constructors are allowed. + const Action<bool(std::string)> s1 = [](std::string s) { return !s.empty(); }; + const Action<int(const char*)> s2 = Action<int(const char*)>(s1); + EXPECT_EQ(0, s2.Perform(make_tuple(""))); + EXPECT_EQ(1, s2.Perform(make_tuple("hello"))); + + // Also between the lambda and the action itself. + const Action<bool(std::string)> x = [](Unused) { return 42; }; + EXPECT_TRUE(x.Perform(make_tuple("hello"))); +} + +TEST(FunctorActionTest, UnusedArguments) { + // Verify that users can ignore uninteresting arguments. + Action<int(int, std::unique_ptr<int>, const int&)> a = + [](int i, Unused, Unused) { return 2 * i; }; + EXPECT_EQ(6, a.Perform(make_tuple(3, UniqueInt(7), 9))); +} + +// Test that basic built-in actions work with move-only arguments. +// TODO(rburny): Currently, almost all ActionInterface-based actions will not +// work, even if they only try to use other, copyable arguments. Implement them +// if necessary (but note that DoAll cannot work on non-copyable types anyway - +// so maybe it's better to make users use lambdas instead. +TEST(MoveOnlyArgumentsTest, ReturningActions) { + Action<int(std::unique_ptr<int>)> a = Return(1); + EXPECT_EQ(1, a.Perform(make_tuple(nullptr))); + + a = testing::WithoutArgs([]() { return 7; }); + EXPECT_EQ(7, a.Perform(make_tuple(nullptr))); + + Action<void(std::unique_ptr<int>, int*)> a2 = testing::SetArgPointee<1>(3); + int x = 0; + a2.Perform(make_tuple(nullptr, &x)); + EXPECT_EQ(x, 3); +} + +#endif // GTEST_LANG_CXX11 + } // Unnamed namespace + +#ifdef _MSC_VER +#if _MSC_VER == 1900 +# pragma warning(pop) +#endif +#endif + |