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