Make Qt exception safer.

Squashed commit of the branch haralds-haralds-qt-s60-topics/topic/exceptions,
which also contains the full history.

Rev-By: Harald Fernengel
Rev-By: Ralf Engels

3 files changed, 286 insertions, 0 deletions

diff --git a/tests/auto/qscopedpointer/.gitignore b/tests/auto/qscopedpointer/.gitignore
new file mode 100644
index 0000000..9f2324c
--- /dev/null
+++ b/tests/auto/qscopedpointer/.gitignore
@@ -0,0 +1 @@
+tst_qscopedpointer
diff --git a/tests/auto/qscopedpointer/qscopedpointer.pro b/tests/auto/qscopedpointer/qscopedpointer.pro
new file mode 100644
index 0000000..13d8425
--- /dev/null
+++ b/tests/auto/qscopedpointer/qscopedpointer.pro
@@ -0,0 +1,3 @@
+load(qttest_p4)
+SOURCES += tst_qscopedpointer.cpp
+QT -= gui
diff --git a/tests/auto/qscopedpointer/tst_qscopedpointer.cpp b/tests/auto/qscopedpointer/tst_qscopedpointer.cpp
new file mode 100644
index 0000000..0e005c3
--- /dev/null
+++ b/tests/auto/qscopedpointer/tst_qscopedpointer.cpp
@@ -0,0 +1,282 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+****************************************************************************/
+
+#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() const;
+    void dataOnDefaultConstructed() const;
+    void useSubClassInConstructor() const;
+    void dataOnValue() const;
+    void dataSignature() const;
+    void reset() const;
+    void dereferenceOperator() const;
+    void dereferenceOperatorSignature() const;
+    void pointerOperator() const;
+    void pointerOperatorSignature() const;
+    void negationOperator() const;
+    void negationOperatorSignature() const;
+    void operatorBool() const;
+    void operatorBoolSignature() const;
+    void isNull() const;
+    void isNullSignature() const;
+    void objectSize() const;
+    // TODO instansiate on const object
+};
+
+void tst_QScopedPointer::defaultConstructor() const
+{
+    /* Check that the members, one, is correctly initialized. */
+    QScopedPointer<int> p;
+    QCOMPARE(p.data(), static_cast<int *>(0));
+}
+
+void tst_QScopedPointer::dataOnDefaultConstructed() const
+{
+    QScopedPointer<int> p;
+
+    QCOMPARE(p.data(), static_cast<int *>(0));
+}
+
+class MyClass
+{
+};
+
+class MySubClass : public MyClass
+{
+};
+
+void tst_QScopedPointer::useSubClassInConstructor() const
+{
+    /* Use a syntax which users typically would do. */
+    QScopedPointer<MyClass> p(new MyClass());
+}
+
+void tst_QScopedPointer::dataOnValue() const
+{
+    int *const rawPointer = new int(5);
+    QScopedPointer<int> p(rawPointer);
+
+    QCOMPARE(p.data(), rawPointer);
+}
+
+void tst_QScopedPointer::dataSignature() const
+{
+    const QScopedPointer<int> p;
+    /* data() should be const. */
+    p.data();
+}
+
+void tst_QScopedPointer::reset() const
+{
+    /* 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() const
+{
+    /* 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() const
+{
+    /* 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() const
+{
+    QScopedPointer<AnyForm> p(new AnyForm());
+    p->value = 5;
+
+    QCOMPARE(p->value, 5);
+}
+
+void tst_QScopedPointer::pointerOperatorSignature() const
+{
+    /* The operator should be const. */
+    const QScopedPointer<AnyForm> p(new AnyForm);
+    p->value = 5;
+
+    QVERIFY(p->value);
+}
+
+void tst_QScopedPointer::negationOperator() const
+{
+    /* 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() const
+{
+    /* The signature should be const. */
+    const QScopedPointer<int> p;
+    !p;
+
+    /* The return value should be bool. */
+    static_cast<bool>(!p);
+}
+
+void tst_QScopedPointer::operatorBool() const
+{
+    /* 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() const
+{
+    /* The signature should be const and return bool. */
+    const QScopedPointer<int> p;
+
+    static_cast<bool>(p);
+}
+
+void tst_QScopedPointer::isNull() const
+{
+    /* 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
+{
+    const QScopedPointer<int> p(new int(69));
+
+    /* The signature should be const and return bool. */
+    static_cast<bool>(p.isNull());
+}
+
+void tst_QScopedPointer::objectSize() const
+{
+    /* The size of QScopedPointer should be the same as one pointer. */
+    QCOMPARE(sizeof(QScopedPointer<int>), sizeof(void *));
+}
+
+QTEST_MAIN(tst_QScopedPointer)
+#include "tst_qscopedpointer.moc"