--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/auto/qguard/tst_qguard.cpp Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,350 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+// NOTE: This is identical to the QPointer autotest
+
+#include <QtTest/QtTest>
+
+#include <QApplication>
+#include <QDebug>
+#include <QWidget>
+#include <private/qguard_p.h>
+
+class tst_QGuard : public QObject
+{
+ Q_OBJECT
+public:
+ tst_QGuard();
+ ~tst_QGuard();
+
+ inline tst_QGuard *me() const
+ { return const_cast<tst_QGuard *>(this); }
+
+public slots:
+ void initTestCase();
+ void cleanupTestCase();
+ void init();
+ void cleanup();
+private slots:
+ void constructors();
+ void destructor();
+ void assignment_operators();
+ void equality_operators();
+ void isNull();
+ void dereference_operators();
+ void disconnect();
+ void castDuringDestruction();
+ void data() const;
+ void dataSignature() const;
+};
+
+tst_QGuard::tst_QGuard()
+{ }
+
+tst_QGuard::~tst_QGuard()
+{ }
+
+void tst_QGuard::initTestCase()
+{ }
+
+void tst_QGuard::cleanupTestCase()
+{ }
+
+void tst_QGuard::init()
+{ }
+
+void tst_QGuard::cleanup()
+{ }
+
+void tst_QGuard::constructors()
+{
+ QGuard<QObject> p1;
+ QGuard<QObject> p2(this);
+ QGuard<QObject> p3(p2);
+ QCOMPARE(p1, QGuard<QObject>(0));
+ QCOMPARE(p2, QGuard<QObject>(this));
+ QCOMPARE(p3, QGuard<QObject>(this));
+}
+
+void tst_QGuard::destructor()
+{
+ QObject *object = new QObject;
+ QGuard<QObject> p = object;
+ QCOMPARE(p, QGuard<QObject>(object));
+ delete object;
+ QCOMPARE(p, QGuard<QObject>(0));
+}
+
+void tst_QGuard::assignment_operators()
+{
+ QGuard<QObject> p1;
+ QGuard<QObject> p2;
+
+ p1 = this;
+ p2 = p1;
+
+ QCOMPARE(p1, QGuard<QObject>(this));
+ QCOMPARE(p2, QGuard<QObject>(this));
+ QCOMPARE(p1, QGuard<QObject>(p2));
+
+ p1 = 0;
+ p2 = p1;
+ QCOMPARE(p1, QGuard<QObject>(0));
+ QCOMPARE(p2, QGuard<QObject>(0));
+ QCOMPARE(p1, QGuard<QObject>(p2));
+
+ QObject *object = new QObject;
+
+ p1 = object;
+ p2 = p1;
+ QCOMPARE(p1, QGuard<QObject>(object));
+ QCOMPARE(p2, QGuard<QObject>(object));
+ QCOMPARE(p1, QGuard<QObject>(p2));
+
+ delete object;
+ QCOMPARE(p1, QGuard<QObject>(0));
+ QCOMPARE(p2, QGuard<QObject>(0));
+ QCOMPARE(p1, QGuard<QObject>(p2));
+}
+
+void tst_QGuard::equality_operators()
+{
+ QGuard<QObject> p1;
+ QGuard<QObject> p2;
+
+ QVERIFY(p1 == p2);
+
+ QObject *object = 0;
+ QWidget *widget = 0;
+
+ p1 = object;
+ QVERIFY(p1 == p2);
+ QVERIFY(p1 == object);
+ p2 = object;
+ QVERIFY(p2 == p1);
+ QVERIFY(p2 == object);
+
+ p1 = this;
+ QVERIFY(p1 != p2);
+ p2 = p1;
+ QVERIFY(p1 == p2);
+
+ // compare to zero
+ p1 = 0;
+ QVERIFY(p1 == 0);
+ QVERIFY(0 == p1);
+ QVERIFY(p2 != 0);
+ QVERIFY(0 != p2);
+ QVERIFY(p1 == object);
+ QVERIFY(object == p1);
+ QVERIFY(p2 != object);
+ QVERIFY(object != p2);
+ QVERIFY(p1 == widget);
+ QVERIFY(widget == p1);
+ QVERIFY(p2 != widget);
+ QVERIFY(widget != p2);
+}
+
+void tst_QGuard::isNull()
+{
+ QGuard<QObject> p1;
+ QVERIFY(p1.isNull());
+ p1 = this;
+ QVERIFY(!p1.isNull());
+ p1 = 0;
+ QVERIFY(p1.isNull());
+}
+
+void tst_QGuard::dereference_operators()
+{
+ QGuard<tst_QGuard> p1 = this;
+
+ QObject *object = p1->me();
+ QVERIFY(object == this);
+
+ QObject &ref = *p1;
+ QVERIFY(&ref == this);
+
+ object = static_cast<QObject *>(p1);
+ QVERIFY(object == this);
+}
+
+void tst_QGuard::disconnect()
+{
+ QGuard<QObject> p1 = new QObject;
+ QVERIFY(!p1.isNull());
+ p1->disconnect();
+ QVERIFY(!p1.isNull());
+ delete static_cast<QObject *>(p1);
+ QVERIFY(p1.isNull());
+}
+
+class ChildObject : public QObject
+{
+ QGuard<QObject> guardedPointer;
+
+public:
+ ChildObject(QObject *parent)
+ : QObject(parent), guardedPointer(parent)
+ { }
+ ~ChildObject();
+};
+
+ChildObject::~ChildObject()
+{
+ QCOMPARE(static_cast<QObject *>(guardedPointer), static_cast<QObject *>(0));
+ QCOMPARE(qobject_cast<QObject *>(guardedPointer), static_cast<QObject *>(0));
+}
+
+class ChildWidget : public QWidget
+{
+ QGuard<QWidget> guardedPointer;
+
+public:
+ ChildWidget(QWidget *parent)
+ : QWidget(parent), guardedPointer(parent)
+ { }
+ ~ChildWidget();
+};
+
+ChildWidget::~ChildWidget()
+{
+ QCOMPARE(static_cast<QWidget *>(guardedPointer), static_cast<QWidget *>(0));
+ QCOMPARE(qobject_cast<QWidget *>(guardedPointer), static_cast<QWidget *>(0));
+}
+
+class DerivedChild;
+
+class DerivedParent : public QObject
+{
+ Q_OBJECT
+
+ DerivedChild *derivedChild;
+
+public:
+ DerivedParent();
+ ~DerivedParent();
+};
+
+class DerivedChild : public QObject
+{
+ Q_OBJECT
+
+ DerivedParent *parentPointer;
+ QGuard<DerivedParent> guardedParentPointer;
+
+public:
+ DerivedChild(DerivedParent *parent)
+ : QObject(parent), parentPointer(parent), guardedParentPointer(parent)
+ { }
+ ~DerivedChild();
+};
+
+DerivedParent::DerivedParent()
+ : QObject()
+{
+ derivedChild = new DerivedChild(this);
+}
+
+DerivedParent::~DerivedParent()
+{
+ delete derivedChild;
+}
+
+DerivedChild::~DerivedChild()
+{
+ QCOMPARE(static_cast<DerivedParent *>(guardedParentPointer), parentPointer);
+ QCOMPARE(qobject_cast<DerivedParent *>(guardedParentPointer), parentPointer);
+}
+
+void tst_QGuard::castDuringDestruction()
+{
+ {
+ QObject *parentObject = new QObject();
+ (void) new ChildObject(parentObject);
+ delete parentObject;
+ }
+
+ {
+ QWidget *parentWidget = new QWidget();
+ (void) new ChildWidget(parentWidget);
+ delete parentWidget;
+ }
+
+ {
+ delete new DerivedParent();
+ }
+}
+
+void tst_QGuard::data() const
+{
+ /* Check value of a default constructed object. */
+ {
+ QGuard<QObject> p;
+ QCOMPARE(p.data(), static_cast<QObject *>(0));
+ }
+
+ /* Check value of a default constructed object. */
+ {
+ QObject *const object = new QObject();
+ QGuard<QObject> p(object);
+ QCOMPARE(p.data(), object);
+ }
+}
+
+void tst_QGuard::dataSignature() const
+{
+ /* data() should be const. */
+ {
+ const QGuard<QObject> p;
+ p.data();
+ }
+
+ /* The return type should be T. */
+ {
+ const QGuard<QWidget> p;
+ /* If the types differs, the QCOMPARE will fail to instansiate. */
+ QCOMPARE(p.data(), static_cast<QWidget *>(0));
+ }
+}
+
+QTEST_MAIN(tst_QGuard)
+#include "tst_qguard.moc"