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| -rw-r--r-- | cppu/qa/test_reference.cxx | 203 |
1 files changed, 203 insertions, 0 deletions
diff --git a/cppu/qa/test_reference.cxx b/cppu/qa/test_reference.cxx new file mode 100644 index 000000000..698a8d5fe --- /dev/null +++ b/cppu/qa/test_reference.cxx @@ -0,0 +1,203 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + +#include <sal/types.h> + +#include <cppunit/TestFixture.h> +#include <cppunit/plugin/TestPlugIn.h> +#include <cppunit/extensions/HelperMacros.h> + +#include <Interface1.hpp> + +namespace +{ + +using ::com::sun::star::uno::Type; +using ::com::sun::star::uno::Any; +using ::com::sun::star::uno::Reference; +using ::com::sun::star::uno::RuntimeException; +using ::com::sun::star::uno::UNO_SET_THROW; + +class Foo: public Interface1 +{ +public: + Foo() + :m_refCount(0) + { + } + + Foo(const Foo&) = delete; + const Foo& operator=(const Foo&) = delete; + + virtual Any SAL_CALL queryInterface(const Type & _type) override + { + if (_type == cppu::UnoType<XInterface>::get()) + { + return css::uno::Any(css::uno::Reference<css::uno::XInterface>( + this)); + } + if (_type == cppu::UnoType<Interface1>::get()) + { + return css::uno::Any(css::uno::Reference<Interface1>(this)); + } + + return Any(); + } + + virtual void SAL_CALL acquire() noexcept override + { + osl_atomic_increment( &m_refCount ); + } + + virtual void SAL_CALL release() noexcept override + { + if ( 0 == osl_atomic_decrement( &m_refCount ) ) + delete this; + } + +protected: + virtual ~Foo() + { + } + +private: + oslInterlockedCount m_refCount; +}; + +// Check that the up-casting Reference conversion constructor catches the +// intended cases: + +struct Base1: public css::uno::XInterface { + virtual ~Base1() = delete; + static ::css::uno::Type const & static_type(void * = nullptr) // loplugin:refcounting + { return ::cppu::UnoType<Base1>::get(); } +}; +struct Base2: public Base1 { + virtual ~Base2() override = delete; +}; +struct Base3: public Base1 { virtual ~Base3() override = delete; }; +struct Derived: public Base2, public Base3 { + virtual ~Derived() override = delete; +}; + +// The special case using the conversion operator instead: +css::uno::Reference< css::uno::XInterface > testUpcast1( + css::uno::Reference< Derived > const & ref) +{ + Base1::static_type(); // prevent loplugin:unreffun firing + return ref; +} + +// The normal up-cast case: +css::uno::Reference< Base1 > testUpcast2( + css::uno::Reference< Base2 > const & ref) +{ return ref; } + +// Commenting this in should cause a compiler error due to an ambiguous up-cast: +/* +css::uno::Reference< Base1 > testFailingUpcast3( + css::uno::Reference< Derived > const & ref) +{ return ref; } +*/ + +// Commenting this in should cause a compiler error due to a down-cast: +/* +css::uno::Reference< Base2 > testFailingUpcast4( + css::uno::Reference< Base1 > const & ref) +{ return ref; } +*/ + +// Commenting this in should cause a compiler error due to a down-cast: +/* +css::uno::Reference< Base1 > testFailingUpcast5( + css::uno::Reference< css::uno::XInterface > const & ref) +{ return ref; } +*/ + +class Test: public ::CppUnit::TestFixture +{ + +public: + void testUnoSetThrow(); + void testUpcastCompilation(); + + CPPUNIT_TEST_SUITE(Test); + CPPUNIT_TEST(testUnoSetThrow); + CPPUNIT_TEST(testUpcastCompilation); + CPPUNIT_TEST_SUITE_END(); +}; + +void Test::testUnoSetThrow() +{ + Reference< Interface1 > xNull; + Reference< Interface1 > xFoo( new Foo ); + + // ctor taking Reference< interface_type > + bool bCaughtException = false; + try { Reference< Interface1 > x( xNull, UNO_SET_THROW ); } catch( const RuntimeException& ) { bCaughtException = true; } + CPPUNIT_ASSERT_EQUAL( true, bCaughtException ); + + bCaughtException = false; + try { Reference< Interface1 > x( xFoo, UNO_SET_THROW ); } catch( const RuntimeException& ) { bCaughtException = true; } + CPPUNIT_ASSERT_EQUAL( false, bCaughtException ); + + // ctor taking interface_type* + bCaughtException = false; + try { Reference< Interface1 > x( xNull.get(), UNO_SET_THROW ); } catch( const RuntimeException& ) { bCaughtException = true; } + CPPUNIT_ASSERT_EQUAL( true, bCaughtException ); + + bCaughtException = false; + try { Reference< Interface1 > x( xFoo.get(), UNO_SET_THROW ); } catch( const RuntimeException& ) { bCaughtException = true; } + CPPUNIT_ASSERT_EQUAL( false, bCaughtException ); + + Reference< Interface1 > x; + // "set" taking Reference< interface_type > + bCaughtException = false; + try { x.set( xNull, UNO_SET_THROW ); } catch( const RuntimeException& ) { bCaughtException = true; } + CPPUNIT_ASSERT_EQUAL( true, bCaughtException ); + + bCaughtException = false; + try { x.set( xFoo, UNO_SET_THROW ); } catch( const RuntimeException& ) { bCaughtException = true; } + CPPUNIT_ASSERT_EQUAL( false, bCaughtException ); + + // "set" taking interface_type* + bCaughtException = false; + try { x.set( xNull.get(), UNO_SET_THROW ); } catch( const RuntimeException& ) { bCaughtException = true; } + CPPUNIT_ASSERT_EQUAL( true, bCaughtException ); + + bCaughtException = false; + try { x.set( xFoo.get(), UNO_SET_THROW ); } catch( const RuntimeException& ) { bCaughtException = true; } + CPPUNIT_ASSERT_EQUAL( false, bCaughtException ); +} + +// Include a dummy test calling those functions, to avoid warnings about those +// functions being unused: +void Test::testUpcastCompilation() +{ + testUpcast1(css::uno::Reference< Derived >()); + testUpcast2(css::uno::Reference< Base2 >()); +} + +CPPUNIT_TEST_SUITE_REGISTRATION(Test); + +} // namespace + +CPPUNIT_PLUGIN_IMPLEMENT(); + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |