diff options
Diffstat (limited to 'tests/auto/qexplicitlyshareddatapointer/tst_qexplicitlyshareddatapointer.cpp')
| -rw-r--r-- | tests/auto/qexplicitlyshareddatapointer/tst_qexplicitlyshareddatapointer.cpp | 239 |
1 files changed, 239 insertions, 0 deletions
diff --git a/tests/auto/qexplicitlyshareddatapointer/tst_qexplicitlyshareddatapointer.cpp b/tests/auto/qexplicitlyshareddatapointer/tst_qexplicitlyshareddatapointer.cpp new file mode 100644 index 0000000..85fe9ef --- /dev/null +++ b/tests/auto/qexplicitlyshareddatapointer/tst_qexplicitlyshareddatapointer.cpp @@ -0,0 +1,239 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (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 either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + + +#include <QtTest/QtTest> +#include <QtCore/QSharedData> + +/*! + \class tst_QExplicitlySharedDataPointer + \internal + \since 4.4 + \brief Tests class QExplicitlySharedDataPointer. + + */ +class tst_QExplicitlySharedDataPointer : public QObject +{ + Q_OBJECT + +private Q_SLOTS: + void pointerOperatorOnConst() const; + void pointerOperatorOnMutable() const; + void copyConstructor() const; + void clone() const; + void data() const; + void reset() const; +}; + +class MyClass : public QSharedData +{ +public: + void mutating() + { + } + + void notMutating() const + { + } + + MyClass &operator=(const MyClass &) + { + return *this; + } +}; + +class Base : public QSharedData +{ +public: + virtual ~Base() { } + virtual Base *clone() { return new Base(*this); } + virtual bool isBase() const { return true; } +}; + +class Derived : public Base +{ +public: + virtual Base *clone() { return new Derived(*this); } + virtual bool isBase() const { return false; } +}; + +QT_BEGIN_NAMESPACE +template<> Base *QExplicitlySharedDataPointer<Base>::clone() +{ + return d->clone(); +} +QT_END_NAMESPACE + +void tst_QExplicitlySharedDataPointer::pointerOperatorOnConst() const +{ + /* Pointer itself is const. */ + { + const QExplicitlySharedDataPointer<const MyClass> pointer(new MyClass()); + pointer->notMutating(); + } + + /* Pointer itself is mutable. */ + { + QExplicitlySharedDataPointer<const MyClass> pointer(new MyClass()); + pointer->notMutating(); + } +} + +void tst_QExplicitlySharedDataPointer::pointerOperatorOnMutable() const +{ + /* Pointer itself is const. */ + { + const QExplicitlySharedDataPointer<MyClass> pointer(new MyClass()); + pointer->notMutating(); + pointer->mutating(); + *pointer = MyClass(); + } + + /* Pointer itself is mutable. */ + { + const QExplicitlySharedDataPointer<MyClass> pointer(new MyClass()); + pointer->notMutating(); + pointer->mutating(); + *pointer = MyClass(); + } +} + +void tst_QExplicitlySharedDataPointer::copyConstructor() const +{ + const QExplicitlySharedDataPointer<const MyClass> pointer(new MyClass()); + const QExplicitlySharedDataPointer<const MyClass> copy(pointer); +} + +void tst_QExplicitlySharedDataPointer::clone() const +{ + /* holding a base element */ + { + QExplicitlySharedDataPointer<Base> pointer(new Base); + QVERIFY(pointer->isBase()); + + QExplicitlySharedDataPointer<Base> copy(pointer); + pointer.detach(); + QVERIFY(pointer->isBase()); + } + + /* holding a derived element */ + { + QExplicitlySharedDataPointer<Base> pointer(new Derived); + QVERIFY(!pointer->isBase()); + + QExplicitlySharedDataPointer<Base> copy(pointer); + pointer.detach(); + QVERIFY(!pointer->isBase()); + } +} + +void tst_QExplicitlySharedDataPointer::data() const +{ + /* Check default value. */ + { + QExplicitlySharedDataPointer<const MyClass> pointer; + QCOMPARE(pointer.data(), static_cast<const MyClass *>(0)); + } + + /* On const pointer. Must not mutate the pointer. */ + { + const QExplicitlySharedDataPointer<const MyClass> pointer(new MyClass()); + pointer.data(); + + /* Check that this cast is possible. */ + static_cast<const MyClass *>(pointer.data()); + } + + /* On mutatable pointer. Must not mutate the pointer. */ + { + QExplicitlySharedDataPointer<const MyClass> pointer(new MyClass()); + pointer.data(); + + /* Check that this cast is possible. */ + static_cast<const MyClass *>(pointer.data()); + } + + /* Must not mutate the pointer. */ + { + const QExplicitlySharedDataPointer<MyClass> pointer(new MyClass()); + pointer.data(); + + /* Check that these casts are possible. */ + static_cast<MyClass *>(pointer.data()); + static_cast<const MyClass *>(pointer.data()); + } + + /* Must not mutate the pointer. */ + { + QExplicitlySharedDataPointer<MyClass> pointer(new MyClass()); + pointer.data(); + + /* Check that these casts are possible. */ + static_cast<MyClass *>(pointer.data()); + static_cast<const MyClass *>(pointer.data()); + } +} + +void tst_QExplicitlySharedDataPointer::reset() const +{ + /* Do reset on a single ref count. */ + { + QExplicitlySharedDataPointer<MyClass> pointer(new MyClass()); + QVERIFY(pointer.data() != 0); + + pointer.reset(); + QCOMPARE(pointer.data(), static_cast<MyClass *>(0)); + } + + /* Do reset on a default constructed object. */ + { + QExplicitlySharedDataPointer<MyClass> pointer; + QCOMPARE(pointer.data(), static_cast<MyClass *>(0)); + + pointer.reset(); + QCOMPARE(pointer.data(), static_cast<MyClass *>(0)); + } +} + +QTEST_MAIN(tst_QExplicitlySharedDataPointer) + +#include "tst_qexplicitlyshareddatapointer.moc" +// vim: et:ts=4:sw=4:sts=4 |