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239 | /* -*- 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 <cppunit/extensions/HelperMacros.h>
#include <cppunit/plugin/TestPlugIn.h>
#include <systools/win32/comtools.hxx>
namespace {
class COMObject : public IUnknown
{
public:
COMObject() : ref_count_(0)
{
}
virtual ~COMObject()
{
}
ULONG __stdcall AddRef() override
{
ref_count_++;
return ref_count_;
}
ULONG __stdcall Release() override
{
ULONG cnt = --ref_count_;
if (cnt == 0)
delete this;
return cnt;
}
HRESULT __stdcall QueryInterface(REFIID riid, void** ppv) override
{
if (riid == IID_IUnknown)
{
AddRef();
*ppv = this;
return S_OK;
}
return E_NOINTERFACE;
}
ULONG GetRefCount() const
{
return ref_count_;
}
private:
ULONG ref_count_;
};
}
static sal::systools::COMReference<IUnknown> comObjectSource()
{
return sal::systools::COMReference<IUnknown>(new COMObject);
}
static bool comObjectSink(sal::systools::COMReference<IUnknown> r, ULONG expectedRefCountOnReturn)
{
r = sal::systools::COMReference<IUnknown>();
COMObject* p = reinterpret_cast<COMObject*>(r.get());
if (p)
return (p->GetRefCount() == expectedRefCountOnReturn);
else
return (0 == expectedRefCountOnReturn);
}
static void comObjectSource2(LPVOID* ppv)
{
COMObject* p = new COMObject;
p->AddRef();
*ppv = p;
}
namespace test_comtools
{
class test_COMReference : public CppUnit::TestFixture
{
public:
/// test of COMReference<IUnknown> r;
void default_ctor()
{
sal::systools::COMReference<IUnknown> r;
CPPUNIT_ASSERT_EQUAL_MESSAGE("COMReference should be empty", static_cast<IUnknown *>(nullptr), r.get());
}
void test_ctor_manual_AddRef()
{
COMObject* p = new COMObject;
p->AddRef();
sal::systools::COMReference<IUnknown> r(p, false);
CPPUNIT_ASSERT_EQUAL_MESSAGE("Wrong reference count 1 is expected", ULONG(1), reinterpret_cast<COMObject*>(r.get())->GetRefCount());
}
void test_copy_ctor()
{
sal::systools::COMReference<IUnknown> r(comObjectSource());
CPPUNIT_ASSERT_EQUAL_MESSAGE("Wrong reference count 1 is expected", ULONG(1), reinterpret_cast<COMObject*>(r.get())->GetRefCount());
}
void test_copy_assignment()
{
sal::systools::COMReference<IUnknown> r;
CPPUNIT_ASSERT_EQUAL_MESSAGE("COMReference should be empty", static_cast<IUnknown *>(nullptr), r.get());
r = comObjectSource();
CPPUNIT_ASSERT_MESSAGE("COMReference should be empty", r.get() != nullptr);
CPPUNIT_ASSERT_EQUAL_MESSAGE("Wrong reference count 1 is expected", ULONG(1), reinterpret_cast<COMObject*>(r.get())->GetRefCount());
}
void test_ref_to_ref_assignment()
{
sal::systools::COMReference<IUnknown> r1 = comObjectSource();
sal::systools::COMReference<IUnknown> r2 = r1;
CPPUNIT_ASSERT_EQUAL_MESSAGE("Wrong reference count 2 is expected", ULONG(2), reinterpret_cast<COMObject*>(r2.get())->GetRefCount());
}
void test_pointer_to_ref_assignment()
{
sal::systools::COMReference<IUnknown> r;
r = new COMObject;
CPPUNIT_ASSERT_EQUAL_MESSAGE("Wrong reference count 1 is expected", ULONG(1), reinterpret_cast<COMObject*>(r.get())->GetRefCount());
}
void test_pointer_to_ref_assignment2()
{
sal::systools::COMReference<IUnknown> r = comObjectSource();<--- r is initialized
r = new COMObject;<--- r is overwritten
CPPUNIT_ASSERT_EQUAL_MESSAGE("Wrong reference count 1 is expected", ULONG(1), reinterpret_cast<COMObject*>(r.get())->GetRefCount());
}
void test_source_sink()
{
CPPUNIT_ASSERT_MESSAGE("Wrong reference count, 0 is expected", comObjectSink(comObjectSource(), 0));
}
void test_address_operator()
{
sal::systools::COMReference<IUnknown> r;
comObjectSource2(reinterpret_cast<LPVOID*>(&r));
CPPUNIT_ASSERT_EQUAL_MESSAGE("Wrong reference count, 1 is expected", ULONG(1), reinterpret_cast<COMObject*>(r.get())->GetRefCount());
}
void test_address_operator2()
{
sal::systools::COMReference<IUnknown> r1 = comObjectSource();
sal::systools::COMReference<IUnknown> r2 = r1;
CPPUNIT_ASSERT_EQUAL_MESSAGE("Wrong reference count 2 is expected", ULONG(2), reinterpret_cast<COMObject*>(r2.get())->GetRefCount());
comObjectSource2(reinterpret_cast<LPVOID*>(&r1));
CPPUNIT_ASSERT_EQUAL_MESSAGE("Wrong reference count 1 is expected", ULONG(1), reinterpret_cast<COMObject*>(r1.get())->GetRefCount());
CPPUNIT_ASSERT_EQUAL_MESSAGE("Wrong reference count 1 is expected", ULONG(1), reinterpret_cast<COMObject*>(r2.get())->GetRefCount());
}
void test_clear()
{
sal::systools::COMReference<IUnknown> r = comObjectSource();
CPPUNIT_ASSERT_EQUAL_MESSAGE("Wrong reference count 1 is expected", ULONG(1), reinterpret_cast<COMObject*>(r.get())->GetRefCount());
r.clear();
CPPUNIT_ASSERT_MESSAGE("Expect reference to be empty", !r.is());
}
void test_query_interface()
{
try
{
sal::systools::COMReference<IUnknown> r1 = comObjectSource();
sal::systools::COMReference<IUnknown> r2 = r1.QueryInterface<IUnknown>(IID_IUnknown);
CPPUNIT_ASSERT_EQUAL_MESSAGE("Wrong reference count, 2 is expected", ULONG(2), reinterpret_cast<COMObject*>(r2.get())->GetRefCount());
}
catch(const sal::systools::ComError&)
{
CPPUNIT_ASSERT_MESSAGE("Exception should not have been thrown", false);
}
}
void test_query_interface_throw()
{
try
{
sal::systools::COMReference<IUnknown> r1 = comObjectSource();
sal::systools::COMReference<IPersistFile> r2 = r1.QueryInterface<IPersistFile>(IID_IPersistFile);
}
catch(const sal::systools::ComError&)
{
return;
}
CPPUNIT_ASSERT_MESSAGE("Exception should have been thrown", false);
}
// Change the following lines only, if you add, remove or rename
// member functions of the current class,
// because these macros are need by auto register mechanism.
CPPUNIT_TEST_SUITE(test_COMReference);
CPPUNIT_TEST(default_ctor);
CPPUNIT_TEST(test_ctor_manual_AddRef);
CPPUNIT_TEST(test_copy_ctor);
CPPUNIT_TEST(test_copy_assignment);
CPPUNIT_TEST(test_ref_to_ref_assignment);
CPPUNIT_TEST(test_pointer_to_ref_assignment);
CPPUNIT_TEST(test_pointer_to_ref_assignment2);
CPPUNIT_TEST(test_source_sink);
CPPUNIT_TEST(test_address_operator);
CPPUNIT_TEST(test_address_operator2);
CPPUNIT_TEST(test_clear);
CPPUNIT_TEST(test_query_interface);
CPPUNIT_TEST(test_query_interface_throw);
CPPUNIT_TEST_SUITE_END();
};
CPPUNIT_TEST_SUITE_REGISTRATION(test_comtools::test_COMReference);
} // namespace rtl_OUString
CPPUNIT_PLUGIN_IMPLEMENT();
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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