Initial import from the monolithic Qt.

This is the beginning of revision history for this module. If you
want to look at revision history older than this, please refer to the
Qt Git wiki for how to use Git history grafting. At the time of
writing, this wiki is located here:

http://qt.gitorious.org/qt/pages/GitIntroductionWithQt

If you have already performed the grafting and you don't see any
history beyond this commit, try running "git log" with the "--follow"
argument.

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

1 files changed, 441 insertions, 0 deletions

diff --git a/tests/auto/qscopedpointer/tst_qscopedpointer.cpp b/tests/auto/qscopedpointer/tst_qscopedpointer.cpp
new file mode 100644
index 0000000000..0aa1e2baf8
--- /dev/null
+++ b/tests/auto/qscopedpointer/tst_qscopedpointer.cpp
@@ -0,0 +1,441 @@
+/****************************************************************************
+**
+** 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 <QtCore/QScopedPointer>
+
+/*!
+ \class tst_QScopedPointer
+ \internal
+ \since 4.6
+ \brief Tests class QScopedPointer.
+
+ */
+class tst_QScopedPointer : public QObject
+{
+    Q_OBJECT
+
+private Q_SLOTS:
+    void defaultConstructor();
+    void dataOnDefaultConstructed();
+    void useSubClassInConstructor();
+    void dataOnValue();
+    void dataSignature();
+    void reset();
+    void dereferenceOperator();
+    void dereferenceOperatorSignature();
+    void pointerOperator();
+    void pointerOperatorSignature();
+    void negationOperator();
+    void negationOperatorSignature();
+    void operatorBool();
+    void operatorBoolSignature();
+    void isNull();
+    void isNullSignature();
+    void objectSize();
+    void comparison();
+    // TODO instanciate on const object
+};
+
+void tst_QScopedPointer::defaultConstructor()
+{
+    /* Check that the members, one, is correctly initialized. */
+    QScopedPointer<int> p;
+    QCOMPARE(p.data(), static_cast<int *>(0));
+}
+
+void tst_QScopedPointer::dataOnDefaultConstructed()
+{
+    QScopedPointer<int> p;
+
+    QCOMPARE(p.data(), static_cast<int *>(0));
+}
+
+class MyClass
+{
+};
+
+class MySubClass : public MyClass
+{
+};
+
+void tst_QScopedPointer::useSubClassInConstructor()
+{
+    /* Use a syntax which users typically would do. */
+    QScopedPointer<MyClass> p(new MyClass());
+}
+
+void tst_QScopedPointer::dataOnValue()
+{
+    int *const rawPointer = new int(5);
+    QScopedPointer<int> p(rawPointer);
+
+    QCOMPARE(p.data(), rawPointer);
+}
+
+void tst_QScopedPointer::dataSignature()
+{
+    const QScopedPointer<int> p;
+    /* data() should be const. */
+    p.data();
+}
+
+void tst_QScopedPointer::reset()
+{
+    /* Call reset() on a default constructed value. */
+    {
+        QScopedPointer<int> p;
+        p.reset();
+        QCOMPARE(p.data(), static_cast<int *>(0));
+    }
+
+    /* Call reset() on an active value. */
+    {
+        QScopedPointer<int> p(new int(3));
+        p.reset();
+        QCOMPARE(p.data(), static_cast<int *>(0));
+    }
+
+    /* Call reset() with a value, on an active value. */
+    {
+        QScopedPointer<int> p(new int(3));
+
+        int *const value = new int(9);
+        p.reset(value);
+        QCOMPARE(*p.data(), 9);
+    }
+
+    /* Call reset() with a value, on default constructed value. */
+    {
+        QScopedPointer<int> p;
+
+        int *const value = new int(9);
+        p.reset(value);
+        QCOMPARE(*p.data(), 9);
+    }
+}
+
+class AbstractClass
+{
+public:
+    virtual ~AbstractClass()
+    {
+    }
+
+    virtual int member() const = 0;
+};
+
+class SubClass : public AbstractClass
+{
+public:
+    virtual int member() const
+    {
+        return 5;
+    }
+};
+
+void tst_QScopedPointer::dereferenceOperator()
+{
+    /* Dereference a basic value. */
+    {
+        QScopedPointer<int> p(new int(5));
+
+        const int value2 = *p;
+        QCOMPARE(value2, 5);
+    }
+
+    /* Dereference a pointer to an abstract class. This verifies
+     * that the operator returns a reference, when compiling
+     * with MSVC 2005. */
+    {
+        QScopedPointer<AbstractClass> p(new SubClass());
+
+        QCOMPARE((*p).member(), 5);
+    }
+}
+
+void tst_QScopedPointer::dereferenceOperatorSignature()
+{
+    /* The operator should be const. */
+    {
+        const QScopedPointer<int> p(new int(5));
+        *p;
+    }
+
+    /* A reference should be returned, not a value. */
+    {
+        const QScopedPointer<int> p(new int(5));
+        Q_UNUSED(static_cast<int &>(*p));
+    }
+
+    /* Instantiated on a const object, the returned object is a const reference. */
+    {
+        const QScopedPointer<const int> p(new int(5));
+        Q_UNUSED(static_cast<const int &>(*p));
+    }
+}
+
+class AnyForm
+{
+public:
+    int value;
+};
+
+void tst_QScopedPointer::pointerOperator()
+{
+    QScopedPointer<AnyForm> p(new AnyForm());
+    p->value = 5;
+
+    QCOMPARE(p->value, 5);
+}
+
+void tst_QScopedPointer::pointerOperatorSignature()
+{
+    /* The operator should be const. */
+    const QScopedPointer<AnyForm> p(new AnyForm);
+    p->value = 5;
+
+    QVERIFY(p->value);
+}
+
+void tst_QScopedPointer::negationOperator()
+{
+    /* Invoke on default constructed value. */
+    {
+        QScopedPointer<int> p;
+        QVERIFY(!p);
+    }
+
+    /* Invoke on a value. */
+    {
+        QScopedPointer<int> p(new int(2));
+        QCOMPARE(!p, false);
+    }
+}
+
+void tst_QScopedPointer::negationOperatorSignature()
+{
+    /* The signature should be const. */
+    const QScopedPointer<int> p;
+    !p;
+
+    /* The return value should be bool. */
+    static_cast<bool>(!p);
+}
+
+void tst_QScopedPointer::operatorBool()
+{
+    /* Invoke on default constructed value. */
+    {
+        QScopedPointer<int> p;
+        QCOMPARE(bool(p), false);
+    }
+
+    /* Invoke on active value. */
+    {
+        QScopedPointer<int> p(new int(3));
+        QVERIFY(p);
+    }
+}
+
+void tst_QScopedPointer::operatorBoolSignature()
+{
+    /* The signature should be const and return bool. */
+    const QScopedPointer<int> p;
+
+    (void)static_cast<bool>(p);
+}
+
+void tst_QScopedPointer::isNull()
+{
+    /* Invoke on default constructed value. */
+    {
+        QScopedPointer<int> p;
+        QVERIFY(p.isNull());
+    }
+
+    /* Invoke on a set value. */
+    {
+        QScopedPointer<int> p(new int(69));
+        QVERIFY(!p.isNull());
+    }
+}
+
+void tst_QScopedPointer::isNullSignature()
+{
+    const QScopedPointer<int> p(new int(69));
+
+    /* The signature should be const and return bool. */
+    static_cast<bool>(p.isNull());
+}
+
+void tst_QScopedPointer::objectSize()
+{
+    /* The size of QScopedPointer should be the same as one pointer. */
+    QCOMPARE(sizeof(QScopedPointer<int>), sizeof(void *));
+}
+
+struct RefCounted
+{
+    RefCounted()
+        : ref(0)
+    {
+        instanceCount.ref();
+    }
+
+    RefCounted(RefCounted const &)
+        : ref(0)
+    {
+        instanceCount.ref();
+    }
+
+    ~RefCounted()
+    {
+        QVERIFY( ref == 0 );
+        instanceCount.deref();
+    }
+
+    RefCounted &operator=(RefCounted const &)
+    {
+        return *this;
+    }
+
+    QAtomicInt ref;
+
+    static QAtomicInt instanceCount;
+};
+
+QAtomicInt RefCounted::instanceCount = 0;
+
+template <class A1, class A2, class B>
+void scopedPointerComparisonTest(const A1 &a1, const A2 &a2, const B &b)
+{
+    // test equality on equal pointers
+    QVERIFY(a1 == a2);
+    QVERIFY(a2 == a1);
+
+    // test inequality on equal pointers
+    QVERIFY(!(a1 != a2));
+    QVERIFY(!(a2 != a1));
+
+    // test equality on unequal pointers
+    QVERIFY(!(a1 == b));
+    QVERIFY(!(a2 == b));
+    QVERIFY(!(b == a1));
+    QVERIFY(!(b == a2));
+
+    // test inequality on unequal pointers
+    QVERIFY(b != a1);
+    QVERIFY(b != a2);
+    QVERIFY(a1 != b);
+    QVERIFY(a2 != b);
+}
+
+void tst_QScopedPointer::comparison()
+{
+    QCOMPARE( int(RefCounted::instanceCount), 0 );
+
+    {
+        RefCounted *a = new RefCounted;
+        RefCounted *b = new RefCounted;
+
+        QCOMPARE( int(RefCounted::instanceCount), 2 );
+
+        QScopedPointer<RefCounted> pa1(a);
+        QScopedPointer<RefCounted> pa2(a);
+        QScopedPointer<RefCounted> pb(b);
+
+        scopedPointerComparisonTest(pa1, pa1, pb);
+        scopedPointerComparisonTest(pa2, pa2, pb);
+        scopedPointerComparisonTest(pa1, pa2, pb);
+
+        pa2.take();
+
+        QCOMPARE( int(RefCounted::instanceCount), 2 );
+    }
+
+    QCOMPARE( int(RefCounted::instanceCount), 0 );
+
+    {
+        RefCounted *a = new RefCounted[42];
+        RefCounted *b = new RefCounted[43];
+
+        QCOMPARE( int(RefCounted::instanceCount), 85 );
+
+        QScopedArrayPointer<RefCounted> pa1(a);
+        QScopedArrayPointer<RefCounted> pa2(a);
+        QScopedArrayPointer<RefCounted> pb(b);
+
+        scopedPointerComparisonTest(pa1, pa2, pb);
+
+        pa2.take();
+
+        QCOMPARE( int(RefCounted::instanceCount), 85 );
+    }
+
+    QCOMPARE( int(RefCounted::instanceCount), 0 );
+
+    {
+        // QScopedSharedPointer is an internal helper class -- it is unsupported!
+
+        RefCounted *a = new RefCounted;
+        RefCounted *b = new RefCounted;
+
+        QCOMPARE( int(RefCounted::instanceCount), 2 );
+
+        QSharedDataPointer<RefCounted> pa1(a);
+        QSharedDataPointer<RefCounted> pa2(a);
+        QSharedDataPointer<RefCounted> pb(b);
+
+        QCOMPARE( int(a->ref), 2 );
+        QCOMPARE( int(b->ref), 1 );
+        QCOMPARE( int(RefCounted::instanceCount), 2 );
+
+        scopedPointerComparisonTest(pa1, pa2, pb);
+
+        QCOMPARE( int(RefCounted::instanceCount), 2 );
+    }
+
+    QCOMPARE( int(RefCounted::instanceCount), 0 );
+}
+
+QTEST_MAIN(tst_QScopedPointer)
+#include "tst_qscopedpointer.moc"