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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:45:59 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:45:59 +0000 |
commit | 19fcec84d8d7d21e796c7624e521b60d28ee21ed (patch) | |
tree | 42d26aa27d1e3f7c0b8bd3fd14e7d7082f5008dc /src/googletest/googlemock/include/gmock/gmock-nice-strict.h | |
parent | Initial commit. (diff) | |
download | ceph-upstream/16.2.11+ds.tar.xz ceph-upstream/16.2.11+ds.zip |
Adding upstream version 16.2.11+ds.upstream/16.2.11+dsupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/googletest/googlemock/include/gmock/gmock-nice-strict.h')
-rw-r--r-- | src/googletest/googlemock/include/gmock/gmock-nice-strict.h | 262 |
1 files changed, 262 insertions, 0 deletions
diff --git a/src/googletest/googlemock/include/gmock/gmock-nice-strict.h b/src/googletest/googlemock/include/gmock/gmock-nice-strict.h new file mode 100644 index 000000000..8230058da --- /dev/null +++ b/src/googletest/googlemock/include/gmock/gmock-nice-strict.h @@ -0,0 +1,262 @@ +// Copyright 2008, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// 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 +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// 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. + +// GOOGLETEST_CM0002 DO NOT DELETE + +#ifndef GMOCK_INCLUDE_GMOCK_GMOCK_NICE_STRICT_H_ +#define GMOCK_INCLUDE_GMOCK_GMOCK_NICE_STRICT_H_ + +#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() { + return decltype(StrictnessModifierProbe(std::declval<const T&>()))::value; +} + +// 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 GTEST_OS_WINDOWS && (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 __declspec(empty_bases) +#else +#define GTEST_INTERNAL_EMPTY_BASE_CLASS +#endif + +template <typename Base> +class NiceMockImpl { + public: + NiceMockImpl() { ::testing::Mock::AllowUninterestingCalls(this); } + + ~NiceMockImpl() { ::testing::Mock::UnregisterCallReaction(this); } +}; + +template <typename Base> +class NaggyMockImpl { + public: + NaggyMockImpl() { ::testing::Mock::WarnUninterestingCalls(this); } + + ~NaggyMockImpl() { ::testing::Mock::UnregisterCallReaction(this); } +}; + +template <typename Base> +class StrictMockImpl { + public: + StrictMockImpl() { ::testing::Mock::FailUninterestingCalls(this); } + + ~StrictMockImpl() { ::testing::Mock::UnregisterCallReaction(this); } +}; + +} // namespace internal + +template <class MockClass> +class GTEST_INTERNAL_EMPTY_BASE_CLASS NiceMock + : private internal::NiceMockImpl<MockClass>, + public MockClass { + public: + static_assert( + !internal::HasStrictnessModifier<MockClass>(), + "Can't apply NiceMock to a class hierarchy that already has a " + "strictness modifier. See " + "https://github.com/google/googletest/blob/master/googlemock/docs/" + "cook_book.md#the-nice-the-strict-and-the-naggy-nicestrictnaggy"); + NiceMock() : MockClass() { + static_assert(sizeof(*this) == sizeof(MockClass), + "The impl subclass shouldn't introduce any padding"); + } + + // Ideally, we would inherit base class's constructors through a using + // declaration, which would preserve their visibility. However, many existing + // tests rely on the fact that current implementation reexports protected + // constructors as public. These tests would need to be cleaned up first. + + // Single argument constructor is special-cased so that it can be + // made explicit. + template <typename A> + explicit NiceMock(A&& arg) : MockClass(std::forward<A>(arg)) { + static_assert(sizeof(*this) == sizeof(MockClass), + "The impl subclass shouldn't introduce any padding"); + } + + template <typename TArg1, typename TArg2, typename... An> + NiceMock(TArg1&& arg1, TArg2&& arg2, An&&... args) + : MockClass(std::forward<TArg1>(arg1), std::forward<TArg2>(arg2), + std::forward<An>(args)...) { + static_assert(sizeof(*this) == sizeof(MockClass), + "The impl subclass shouldn't introduce any padding"); + } + + private: + GTEST_DISALLOW_COPY_AND_ASSIGN_(NiceMock); +}; + +template <class MockClass> +class GTEST_INTERNAL_EMPTY_BASE_CLASS NaggyMock + : private internal::NaggyMockImpl<MockClass>, + public MockClass { + static_assert( + !internal::HasStrictnessModifier<MockClass>(), + "Can't apply NaggyMock to a class hierarchy that already has a " + "strictness modifier. See " + "https://github.com/google/googletest/blob/master/googlemock/docs/" + "cook_book.md#the-nice-the-strict-and-the-naggy-nicestrictnaggy"); + + public: + NaggyMock() : MockClass() { + static_assert(sizeof(*this) == sizeof(MockClass), + "The impl subclass shouldn't introduce any padding"); + } + + // Ideally, we would inherit base class's constructors through a using + // declaration, which would preserve their visibility. However, many existing + // tests rely on the fact that current implementation reexports protected + // constructors as public. These tests would need to be cleaned up first. + + // Single argument constructor is special-cased so that it can be + // made explicit. + template <typename A> + explicit NaggyMock(A&& arg) : MockClass(std::forward<A>(arg)) { + static_assert(sizeof(*this) == sizeof(MockClass), + "The impl subclass shouldn't introduce any padding"); + } + + template <typename TArg1, typename TArg2, typename... An> + NaggyMock(TArg1&& arg1, TArg2&& arg2, An&&... args) + : MockClass(std::forward<TArg1>(arg1), std::forward<TArg2>(arg2), + std::forward<An>(args)...) { + static_assert(sizeof(*this) == sizeof(MockClass), + "The impl subclass shouldn't introduce any padding"); + } + + private: + GTEST_DISALLOW_COPY_AND_ASSIGN_(NaggyMock); +}; + +template <class MockClass> +class GTEST_INTERNAL_EMPTY_BASE_CLASS StrictMock + : private internal::StrictMockImpl<MockClass>, + public MockClass { + public: + static_assert( + !internal::HasStrictnessModifier<MockClass>(), + "Can't apply StrictMock to a class hierarchy that already has a " + "strictness modifier. See " + "https://github.com/google/googletest/blob/master/googlemock/docs/" + "cook_book.md#the-nice-the-strict-and-the-naggy-nicestrictnaggy"); + StrictMock() : MockClass() { + static_assert(sizeof(*this) == sizeof(MockClass), + "The impl subclass shouldn't introduce any padding"); + } + + // Ideally, we would inherit base class's constructors through a using + // declaration, which would preserve their visibility. However, many existing + // tests rely on the fact that current implementation reexports protected + // constructors as public. These tests would need to be cleaned up first. + + // Single argument constructor is special-cased so that it can be + // made explicit. + template <typename A> + explicit StrictMock(A&& arg) : MockClass(std::forward<A>(arg)) { + static_assert(sizeof(*this) == sizeof(MockClass), + "The impl subclass shouldn't introduce any padding"); + } + + template <typename TArg1, typename TArg2, typename... An> + StrictMock(TArg1&& arg1, TArg2&& arg2, An&&... args) + : MockClass(std::forward<TArg1>(arg1), std::forward<TArg2>(arg2), + std::forward<An>(args)...) { + static_assert(sizeof(*this) == sizeof(MockClass), + "The impl subclass shouldn't introduce any padding"); + } + + private: + GTEST_DISALLOW_COPY_AND_ASSIGN_(StrictMock); +}; + +#undef GTEST_INTERNAL_EMPTY_BASE_CLASS + +} // namespace testing + +#endif // GMOCK_INCLUDE_GMOCK_GMOCK_NICE_STRICT_H_ |