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diff --git a/tests/benchmarks/gui/styles/qstylesheetstyle/main.cpp b/tests/benchmarks/gui/styles/qstylesheetstyle/main.cpp
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+/****************************************************************************
+**
+** 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+// This file contains benchmarks for QRect/QRectF functions.
+
+#include <QtGui>
+#include <qtest.h>
+
+class tst_qstylesheetstyle : public QObject
+{
+    Q_OBJECT
+private slots:
+    void empty();
+    void empty_events();
+
+    void simple();
+    void simple_events();
+
+    void grid_data();
+    void grid();
+
+private:
+    QWidget *buildSimpleWidgets();
+
+};
+
+
+QWidget *tst_qstylesheetstyle::buildSimpleWidgets()
+{
+    QWidget *w = new QWidget();
+    QGridLayout *layout = new QGridLayout(w);
+    w->setLayout(layout);
+    layout->addWidget(new QPushButton("pushButton")     ,0,0);
+    layout->addWidget(new QComboBox()                   ,0,1);
+    layout->addWidget(new QCheckBox("checkBox")         ,0,2);
+    layout->addWidget(new QRadioButton("radioButton")   ,0,3);
+    layout->addWidget(new QLineEdit()                   ,1,0);
+    layout->addWidget(new QLabel("label")               ,1,1);
+    layout->addWidget(new QSpinBox()                    ,1,2);
+    layout->addWidget(new QProgressBar()                ,1,3);
+    return w;
+}
+
+void tst_qstylesheetstyle::empty()
+{
+    QWidget *w = buildSimpleWidgets();
+    w->setStyleSheet("/* */");
+    QApplication::processEvents();
+    int i = 0;
+    QBENCHMARK {
+        w->setStyleSheet("/*" + QString::number(i) + "*/");
+        i++; // we want a different string in case we have severals iterations
+    }
+    delete w;
+}
+
+void tst_qstylesheetstyle::empty_events()
+{
+    QWidget *w = buildSimpleWidgets();
+    w->setStyleSheet("/* */");
+    QApplication::processEvents();
+    int i = 0;
+    QBENCHMARK {
+        w->setStyleSheet("/*" + QString::number(i) + "*/");
+        i++; // we want a different string in case we have severals iterations
+        qApp->processEvents();
+    }
+    delete w;
+}
+
+static const char *simple_css =
+   " QLineEdit { background: red; }   QPushButton { border: 1px solid yellow; color: pink; }  \n"
+   " QCheckBox { margin: 3px 5px; background-color:red; } QAbstractButton { background-color: #456; } \n"
+   " QFrame { padding: 3px; } QLabel { color: black } QSpinBox:hover { background-color:blue; }  ";
+
+void tst_qstylesheetstyle::simple()
+{
+    QWidget *w = buildSimpleWidgets();
+    w->setStyleSheet("/* */");
+    QApplication::processEvents();
+    int i = 0;
+    QBENCHMARK {
+        w->setStyleSheet(QString(simple_css) + "/*" + QString::number(i) + "*/");
+        i++; // we want a different string in case we have severals iterations
+    }
+    delete w;
+}
+
+void tst_qstylesheetstyle::simple_events()
+{
+    QWidget *w = buildSimpleWidgets();
+    w->setStyleSheet("/* */");
+    QApplication::processEvents();
+    int i = 0;
+    QBENCHMARK {
+        w->setStyleSheet(QString(simple_css) + "/*" + QString::number(i) + "*/");
+        i++; // we want a different string in case we have severals iterations
+        qApp->processEvents();
+    }
+    delete w;
+}
+
+void tst_qstylesheetstyle::grid_data()
+{
+        QTest::addColumn<bool>("events");
+        QTest::addColumn<bool>("show");
+        QTest::addColumn<int>("N");
+        for (int n = 5; n <= 25; n += 5) {
+           const QByteArray nString = QByteArray::number(n*n);
+            QTest::newRow(("simple--" + nString).constData()) << false << false << n;
+            QTest::newRow(("events--" + nString).constData()) << true << false << n;
+            QTest::newRow(("show--" + nString).constData()) << true << true << n;
+        }
+}
+
+
+void tst_qstylesheetstyle::grid()
+{
+    QFETCH(bool, events);
+    QFETCH(bool, show);
+    QFETCH(int, N);
+
+#ifdef Q_OS_SYMBIAN
+    // Symbian has limited stack (max 80k), which will run out when N >= 20 due to
+    // QWidget::show() using recursion among grid labels somewhere down the line.
+    if (show && N >= 20)
+        QSKIP("Grid too big for device to show", SkipSingle);
+#endif
+
+    QWidget *w = new QWidget();
+    QGridLayout *layout = new QGridLayout(w);
+    w->setLayout(layout);
+    QString stylesheet;
+    for(int x=0; x<N ;x++)
+        for(int y=0; y<N ;y++) {
+        QLabel *label = new QLabel(QString::number(y * N + x));
+        layout->addWidget(label ,x,y);
+        label->setObjectName(QString("label%1").arg(y * N + x));
+        stylesheet += QString("#label%1 { background-color: rgb(0,%2,%3); color: rgb(%2,%3,255);  } ").arg(y*N+x).arg(y*255/N).arg(x*255/N);
+    }
+
+    w->setStyleSheet("/* */");
+    if(show) {
+        w->show();
+        QTest::qWaitForWindowShown(w);
+        QApplication::flush();
+        QApplication::processEvents();
+        QTest::qWait(30);
+        QApplication::processEvents();
+    }
+    QApplication::processEvents();
+    int i = 0;
+    QBENCHMARK {
+        w->setStyleSheet(stylesheet + "/*" + QString::number(i) + "*/");
+        i++; // we want a different string in case we have severals iterations
+        if(events)
+            qApp->processEvents();
+    }
+    delete w;
+}
+
+QTEST_MAIN(tst_qstylesheetstyle)
+
+#include "main.moc"