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Branched from the monolithic repo, Qt master branch, at commit
896db169ea224deb96c59ce8af800d019de63f12

1 files changed, 343 insertions, 0 deletions

diff --git a/tests/auto/qpointer/tst_qpointer.cpp b/tests/auto/qpointer/tst_qpointer.cpp
new file mode 100644
index 0000000000..67579fd530
--- /dev/null
+++ b/tests/auto/qpointer/tst_qpointer.cpp
@@ -0,0 +1,343 @@
+/****************************************************************************
+**
+** 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 <QtTest/QtTest>
+
+#include <QPointer>
+#include <QWidget>
+
+class tst_QPointer : public QObject
+{
+    Q_OBJECT
+public:
+    inline tst_QPointer *me() const
+    { return const_cast<tst_QPointer *>(this); }
+
+private slots:
+    void constructors();
+    void destructor();
+    void assignment_operators();
+    void equality_operators();
+    void isNull();
+    void dereference_operators();
+    void disconnect();
+    void castDuringDestruction();
+    void threadSafety();
+};
+
+void tst_QPointer::constructors()
+{
+    QPointer<QObject> p1;
+    QPointer<QObject> p2(this);
+    QPointer<QObject> p3(p2);
+    QCOMPARE(p1, QPointer<QObject>(0));
+    QCOMPARE(p2, QPointer<QObject>(this));
+    QCOMPARE(p3, QPointer<QObject>(this));
+}
+
+void tst_QPointer::destructor()
+{
+    // Make two QPointer's to the same object
+    QObject *object = new QObject;
+    QPointer<QObject> p1 = object;
+    QPointer<QObject> p2 = object;
+    // Check that they point to the correct object
+    QCOMPARE(p1, QPointer<QObject>(object));
+    QCOMPARE(p2, QPointer<QObject>(object));
+    QCOMPARE(p1, p2);
+    // Destroy the guarded object
+    delete object;
+    // Check that both pointers were zeroed
+    QCOMPARE(p1, QPointer<QObject>(0));
+    QCOMPARE(p2, QPointer<QObject>(0));
+    QCOMPARE(p1, p2);
+}
+
+void tst_QPointer::assignment_operators()
+{
+    QPointer<QObject> p1;
+    QPointer<QObject> p2;
+
+    // Test assignment with a QObject-derived object pointer
+    p1 = this;
+    p2 = p1;
+    QCOMPARE(p1, QPointer<QObject>(this));
+    QCOMPARE(p2, QPointer<QObject>(this));
+    QCOMPARE(p1, QPointer<QObject>(p2));
+
+    // Test assignment with a null pointer
+    p1 = 0;
+    p2 = p1;
+    QCOMPARE(p1, QPointer<QObject>(0));
+    QCOMPARE(p2, QPointer<QObject>(0));
+    QCOMPARE(p1, QPointer<QObject>(p2));
+
+    // Test assignment with a real QObject pointer
+    QObject *object = new QObject;
+
+    p1 = object;
+    p2 = p1;
+    QCOMPARE(p1, QPointer<QObject>(object));
+    QCOMPARE(p2, QPointer<QObject>(object));
+    QCOMPARE(p1, QPointer<QObject>(p2));
+
+    // Test assignment with the same pointer that's already guarded
+    p1 = object;
+    p2 = p1;
+    QCOMPARE(p1, QPointer<QObject>(object));
+    QCOMPARE(p2, QPointer<QObject>(object));
+    QCOMPARE(p1, QPointer<QObject>(p2));
+
+    // Cleanup
+    delete object;
+}
+
+void tst_QPointer::equality_operators()
+{
+    QPointer<QObject> p1;
+    QPointer<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_QPointer::isNull()
+{
+    QPointer<QObject> p1;
+    QVERIFY(p1.isNull());
+    p1 = this;
+    QVERIFY(!p1.isNull());
+    p1 = 0;
+    QVERIFY(p1.isNull());
+}
+
+void tst_QPointer::dereference_operators()
+{
+    QPointer<tst_QPointer> p1 = this;
+    QPointer<tst_QPointer> p2;
+
+    // operator->() -- only makes sense if not null
+    QObject *object = p1->me();
+    QCOMPARE(object, this);
+
+    // operator*() -- only makes sense if not null
+    QObject &ref = *p1;
+    QCOMPARE(&ref, this);
+
+    // operator T*()
+    QCOMPARE(static_cast<QObject *>(p1), this);
+    QCOMPARE(static_cast<QObject *>(p2), static_cast<QObject *>(0));
+
+    // data()
+    QCOMPARE(p1.data(), this);
+    QCOMPARE(p2.data(), static_cast<QObject *>(0));
+}
+
+void tst_QPointer::disconnect()
+{
+    // Verify that pointer remains guarded when all signals are disconencted.
+    QPointer<QObject> p1 = new QObject;
+    QVERIFY(!p1.isNull());
+    p1->disconnect();
+    QVERIFY(!p1.isNull());
+    delete static_cast<QObject *>(p1);
+    QVERIFY(p1.isNull());
+}
+
+class ChildObject : public QObject
+{
+    QPointer<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
+{
+    QPointer<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;
+    QPointer<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_QPointer::castDuringDestruction()
+{
+    {
+        QObject *parentObject = new QObject();
+        (void) new ChildObject(parentObject);
+        delete parentObject;
+    }
+
+    {
+        QWidget *parentWidget = new QWidget();
+        (void) new ChildWidget(parentWidget);
+        delete parentWidget;
+    }
+
+    {
+        delete new DerivedParent();
+    }
+}
+
+class TestRunnable : public QObject, public QRunnable {
+    void run() {
+        QPointer<QObject> obj1 = new QObject;
+        QPointer<QObject> obj2 = new QObject;
+        obj1->moveToThread(thread()); // this is the owner thread
+        obj1->deleteLater(); // the delete will happen in the owner thread
+        obj2->moveToThread(thread()); // this is the owner thread
+        obj2->deleteLater(); // the delete will happen in the owner thread
+    }
+};
+
+void tst_QPointer::threadSafety()
+{
+
+    QThread owner;
+    owner.start();
+
+    QThreadPool pool;
+    for (int i = 0; i < 300; i++) {
+        QPointer<TestRunnable> task = new TestRunnable;
+        task->setAutoDelete(true);
+        task->moveToThread(&owner);
+        pool.start(task);
+    }
+    pool.waitForDone();
+
+    owner.quit();
+    owner.wait();
+}
+
+
+QTEST_MAIN(tst_QPointer)
+#include "tst_qpointer.moc"