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/****************************************************************************
**
** Copyright (C) 2013 Intel Corporation.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the test suite of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/
/*
* This file exists because tst_qsharedpointer.cpp is compiled with
* QT_SHAREDPOINTER_TRACK_POINTERS. That changes some behavior.
*
* Note that most of these tests may yield false-positives in debug mode, but
* they should not yield false negatives. That is, they may report PASS when
* they are failing, but they should not produce FAILs.
*
* The reason for that is because of C++'s One Definition Rule: the macro
* changes some functions and, in debug mode, they will not be inlined. At link
* time, the two functions would be merged.
*/
#include <qsharedpointer.h>
#include <QtTest>
#include "nontracked.h"
// We can't name our classes Data and DerivedData: those are in tst_qsharedpointer.cpp
namespace NonTracked {
class Data
{
public:
static int destructorCounter;
static int generationCounter;
int generation;
Data() : generation(++generationCounter)
{ }
virtual ~Data()
{
if (generation <= 0)
qFatal("tst_qsharedpointer: Double deletion!");
generation = 0;
++destructorCounter;
}
};
int Data::generationCounter = 0;
int Data::destructorCounter = 0;
class DerivedData: public Data
{
public:
static int derivedDestructorCounter;
int moreData;
DerivedData() : moreData(0) { }
~DerivedData() { ++derivedDestructorCounter; }
};
int DerivedData::derivedDestructorCounter = 0;
#ifndef QTEST_NO_RTTI
void dynamicCastFailureNoLeak()
{
Data::destructorCounter = DerivedData::derivedDestructorCounter = 0;
// see QTBUG-28924
QSharedPointer<Data> a(new Data);
QSharedPointer<DerivedData> b = a.dynamicCast<DerivedData>();
QVERIFY(!a.isNull());
QVERIFY(b.isNull());
a.clear();
b.clear();
QVERIFY(a.isNull());
// verify that the destructors were called
QCOMPARE(Data::destructorCounter, 1);
QCOMPARE(DerivedData::derivedDestructorCounter, 0);
}
#endif
} // namespace NonTracked
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