gmock-nice-strict.h | Explore in Territory

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//
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//
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// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
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// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

// Implements class templates NiceMock, NaggyMock, and StrictMock.
//
// Given a mock class MockFoo that is created using Google Mock,
// NiceMock<MockFoo> is a subclass of MockFoo that allows
// uninteresting calls (i.e. calls to mock methods that have no
// EXPECT_CALL specs), NaggyMock<MockFoo> is a subclass of MockFoo
// that prints a warning when an uninteresting call occurs, and
// StrictMock<MockFoo> is a subclass of MockFoo that treats all
// uninteresting calls as errors.
//
// Currently a mock is naggy by default, so MockFoo and
// NaggyMock<MockFoo> behave like the same.  However, we will soon
// switch the default behavior of mocks to be nice, as that in general
// leads to more maintainable tests.  When that happens, MockFoo will
// stop behaving like NaggyMock<MockFoo> and start behaving like
// NiceMock<MockFoo>.
//
// NiceMock, NaggyMock, and StrictMock "inherit" the constructors of
// their respective base class.  Therefore you can write
// NiceMock<MockFoo>(5, "a") to construct a nice mock where MockFoo
// has a constructor that accepts (int, const char*), for example.
//
// A known limitation is that NiceMock<MockFoo>, NaggyMock<MockFoo>,
// and StrictMock<MockFoo> only works for mock methods defined using
// the MOCK_METHOD* family of macros DIRECTLY in the MockFoo class.
// If a mock method is defined in a base class of MockFoo, the "nice"
// or "strict" modifier may not affect it, depending on the compiler.
// In particular, nesting NiceMock, NaggyMock, and StrictMock is NOT
// supported.

// IWYU pragma: private, include "gmock/gmock.h"
// IWYU pragma: friend gmock/.*

#ifndef GOOGLEMOCK_INCLUDE_GMOCK_GMOCK_NICE_STRICT_H_
#define GOOGLEMOCK_INCLUDE_GMOCK_GMOCK_NICE_STRICT_H_

#include <cstdint>
#include <type_traits>

#include "gmock/gmock-spec-builders.h"
#include "gmock/internal/gmock-port.h"

namespace testing {
template <class MockClass>
class NiceMock;
template <class MockClass>
class NaggyMock;
template <class MockClass>
class StrictMock;

namespace internal {
template <typename T>
std::true_type StrictnessModifierProbe(const NiceMock<T>&);
template <typename T>
std::true_type StrictnessModifierProbe(const NaggyMock<T>&);
template <typename T>
std::true_type StrictnessModifierProbe(const StrictMock<T>&);
std::false_type StrictnessModifierProbe(...);

template <typename T>
constexpr bool HasStrictnessModifier() { … }

// Base classes that register and deregister with testing::Mock to alter the
// default behavior around uninteresting calls. Inheriting from one of these
// classes first and then MockClass ensures the MockClass constructor is run
// after registration, and that the MockClass destructor runs before
// deregistration. This guarantees that MockClass's constructor and destructor
// run with the same level of strictness as its instance methods.

#if defined(GTEST_OS_WINDOWS) && !defined(GTEST_OS_WINDOWS_MINGW) && \
    (defined(_MSC_VER) || defined(__clang__))
// We need to mark these classes with this declspec to ensure that
// the empty base class optimization is performed.
#define GTEST_INTERNAL_EMPTY_BASE_CLASS …
#else
#define GTEST_INTERNAL_EMPTY_BASE_CLASS
#endif

template <typename Base>
class NiceMockImpl { … };

template <typename Base>
class NaggyMockImpl { … };

template <typename Base>
class StrictMockImpl { … };

}  // namespace internal

template <class MockClass>
class GTEST_INTERNAL_EMPTY_BASE_CLASS NiceMock
    : private internal::NiceMockImpl<MockClass>,
      public MockClass { … };

template <class MockClass>
class GTEST_INTERNAL_EMPTY_BASE_CLASS NaggyMock
    : private internal::NaggyMockImpl<MockClass>,
      public MockClass { … };

template <class MockClass>
class GTEST_INTERNAL_EMPTY_BASE_CLASS StrictMock
    : private internal::StrictMockImpl<MockClass>,
      public MockClass { … };

#undef GTEST_INTERNAL_EMPTY_BASE_CLASS

}  // namespace testing

#endif  // GOOGLEMOCK_INCLUDE_GMOCK_GMOCK_NICE_STRICT_H_
llvm/third-party/unittest/googlemock/include/gmock/gmock-nice-strict.h
