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/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the test suite of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** 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 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtGui/QWidget>
#include <QtGui/QPushButton>
#include <QtTest/QtTest>
QT_BEGIN_NAMESPACE
namespace QtSharedPointer {
Q_CORE_EXPORT void internalSafetyCheckCleanCheck();
}
QT_END_NAMESPACE
class tst_QSharedPointer_and_QWidget: public QObject
{
Q_OBJECT
private slots:
void weak_externalDelete();
void weak_parentDelete();
void weak_parentDelete_setParent();
void strong_weak();
void strong_sharedptrDelete();
public slots:
void cleanup() { check(); }
public:
inline void check()
{
#ifdef QT_BUILD_INTERNAL
QtSharedPointer::internalSafetyCheckCleanCheck();
#endif
}
};
void tst_QSharedPointer_and_QWidget::weak_externalDelete()
{
QWidget *w = new QWidget;
QWeakPointer<QWidget> ptr = w;
QVERIFY(!ptr.isNull());
delete w;
QVERIFY(ptr.isNull());
}
void tst_QSharedPointer_and_QWidget::weak_parentDelete()
{
QWidget *parent = new QWidget;
QWidget *w = new QWidget(parent);
QWeakPointer<QWidget> ptr = w;
QVERIFY(!ptr.isNull());
delete parent;
QVERIFY(ptr.isNull());
}
void tst_QSharedPointer_and_QWidget::weak_parentDelete_setParent()
{
QWidget *parent = new QWidget;
QWidget *w = new QWidget;
QWeakPointer<QWidget> ptr = w;
w->setParent(parent);
QVERIFY(!ptr.isNull());
delete parent;
QVERIFY(ptr.isNull());
}
// -- mixed --
void tst_QSharedPointer_and_QWidget::strong_weak()
{
QSharedPointer<QWidget> ptr(new QWidget);
QWeakPointer<QWidget> weak = ptr.data();
QWeakPointer<QWidget> weak2 = ptr;
QVERIFY(!weak.isNull());
QVERIFY(!weak2.isNull());
ptr.clear(); // deletes
QVERIFY(weak.isNull());
QVERIFY(weak2.isNull());
}
// ---- strong management ----
void tst_QSharedPointer_and_QWidget::strong_sharedptrDelete()
{
QWidget *parent = new QWidget;
QSharedPointer<QWidget> ptr(new QWidget(parent));
QWeakPointer<QWidget> weak = ptr;
QPointer<QWidget> check = ptr.data();
QVERIFY(!check.isNull());
QVERIFY(!weak.isNull());
ptr.clear(); // deletes
QVERIFY(check.isNull());
QVERIFY(weak.isNull());
delete parent; // mustn't crash
}
QTEST_MAIN(tst_QSharedPointer_and_QWidget)
#include "tst_qsharedpointer_and_qwidget.moc"
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