1 files changed, 103 insertions, 0 deletions
diff --git a/tests/auto/gui/kernel/qbackingstore/tst_qbackingstore.cpp b/tests/auto/gui/kernel/qbackingstore/tst_qbackingstore.cpp
new file mode 100644
index 0000000000..678e616b19
--- /dev/null
+++ b/tests/auto/gui/kernel/qbackingstore/tst_qbackingstore.cpp
@@ -0,0 +1,103 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/
+**
+** This file is part of the test suite of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** 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.
+**
+** 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.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <qwindow.h>
+#include <qbackingstore.h>
+#include <qpainter.h>
+
+#include <QtTest/QtTest>
+
+#include <QEvent>
+
+// For QSignalSpy slot connections.
+Q_DECLARE_METATYPE(Qt::ScreenOrientation)
+
+class tst_QBackingStore : public QObject
+{
+    Q_OBJECT
+
+private slots:
+    void flush();
+};
+
+class Window : public QWindow
+{
+public:
+    Window()
+        : backingStore(this)
+    {
+    }
+
+    void resizeEvent(QResizeEvent *)
+    {
+        backingStore.resize(size());
+    }
+
+    void exposeEvent(QExposeEvent *event)
+    {
+        QRect rect(QPoint(), size());
+
+        backingStore.beginPaint(rect);
+
+        QPainter p(backingStore.paintDevice());
+        p.fillRect(rect, Qt::white);
+        p.end();
+
+        backingStore.endPaint();
+
+        backingStore.flush(event->region().boundingRect());
+    }
+
+private:
+    QBackingStore backingStore;
+};
+
+void tst_QBackingStore::flush()
+{
+    Window window;
+    window.setGeometry(20, 20, 200, 200);
+    window.showMaximized();
+
+    QTRY_VERIFY(window.isExposed());
+}
+
+#include <tst_qbackingstore.moc>
+QTEST_MAIN(tst_QBackingStore);