diff --git a/tests/kpagewidgettest.cpp b/tests/kpagewidgettest.cpp
index c8069e1..ba8c641 100644
--- a/tests/kpagewidgettest.cpp
+++ b/tests/kpagewidgettest.cpp
@@ -1,212 +1,212 @@
 /*
     This file is part of the KDE Libraries
 
     Copyright (C) 2006 Tobias Koenig (tokoe@kde.org)
 
     This library is free software; you can redistribute it and/or
     modify it under the terms of the GNU Library General Public
     License as published by the Free Software Foundation; either
     version 2 of the License, or (at your option) any later version.
 
     This library is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
     Library General Public License for more details.
 
     You should have received a copy of the GNU Library General Public License
     along with this library; see the file COPYING.LIB. If not, write to
     the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     Boston, MA 02110-1301, USA.
 */
 
 #include "kpagewidgettest.h"
 
 #include <QApplication>
 #include <QGridLayout>
 #include <QLabel>
 #include <QPushButton>
 
 #include "kpagewidgetmodel.h"
 
 KPageWidgetTest::KPageWidgetTest(QWidget *parent)
     : QWidget(parent)
 {
     QGridLayout *layout = new QGridLayout(this);
 
     mWidget = new KPageWidget(this);
     layout->addWidget(mWidget, 0, 0, 7, 1);
 
     connect(mWidget, SIGNAL(currentPageChanged(KPageWidgetItem*,KPageWidgetItem*)),
             this, SLOT(currentPageChanged(KPageWidgetItem*,KPageWidgetItem*)));
     connect(mWidget, &KPageWidget::pageToggled,
             this, &KPageWidgetTest::pageToggled);
 
     int rowCount = 0;
     QPushButton *button = new QPushButton(QStringLiteral("Auto"), this);
     layout->addWidget(button, rowCount, 1);
     connect(button, &QAbstractButton::clicked, this, &KPageWidgetTest::setAutoFace);
     rowCount++;
 
     button = new QPushButton(QStringLiteral("Plain"), this);
     layout->addWidget(button, rowCount, 1);
     connect(button, &QAbstractButton::clicked, this, &KPageWidgetTest::setPlainFace);
     rowCount++;
 
     button = new QPushButton(QStringLiteral("List"), this);
     layout->addWidget(button, rowCount, 1);
     connect(button, &QAbstractButton::clicked, this, &KPageWidgetTest::setListFace);
     rowCount++;
 
     button = new QPushButton(QStringLiteral("Tree"), this);
     layout->addWidget(button, rowCount, 1);
     connect(button, &QAbstractButton::clicked, this, &KPageWidgetTest::setTreeFace);
     rowCount++;
 
     button = new QPushButton(QStringLiteral("Tabbed"), this);
     layout->addWidget(button, rowCount, 1);
     connect(button, &QAbstractButton::clicked, this, &KPageWidgetTest::setTabbedFace);
     rowCount++;
 
     button = new QPushButton(QStringLiteral("Add Page"), this);
     layout->addWidget(button, rowCount, 1);
     connect(button, &QAbstractButton::clicked, this, &KPageWidgetTest::addPage);
     rowCount++;
 
     button = new QPushButton(QStringLiteral("Add Sub Page"), this);
     layout->addWidget(button, rowCount, 1);
     connect(button, &QAbstractButton::clicked, this, &KPageWidgetTest::addSubPage);
     rowCount++;
 
     button = new QPushButton(QStringLiteral("Insert Page"), this);
     layout->addWidget(button, rowCount, 1);
     connect(button, &QAbstractButton::clicked, this, &KPageWidgetTest::insertPage);
     rowCount++;
 
     button = new QPushButton(QStringLiteral("Delete Page"), this);
     layout->addWidget(button, rowCount, 1);
     connect(button, &QAbstractButton::clicked, this, &KPageWidgetTest::deletePage);
     rowCount++;
 
     KPageWidgetItem *item = mWidget->addPage(new QPushButton(QStringLiteral("folder")), QStringLiteral("folder"));
     item->setIcon(QIcon::fromTheme(QStringLiteral("folder")));
     item = mWidget->addSubPage(item, new QPushButton(QStringLiteral("subfolder")), QStringLiteral("subfolder"));
     item->setIcon(QIcon::fromTheme(QStringLiteral("folder")));
     item = mWidget->addPage(new QLabel(QStringLiteral("second folder")), QStringLiteral("second folder"));
     item->setIcon(QIcon::fromTheme(QStringLiteral("folder")));
 }
 
 KPageWidgetTest::~KPageWidgetTest()
 {
 }
 
 void KPageWidgetTest::setAutoFace()
 {
     mWidget->setFaceType(KPageWidget::Auto);
 }
 
 void KPageWidgetTest::setPlainFace()
 {
     mWidget->setFaceType(KPageWidget::Plain);
 }
 
 void KPageWidgetTest::setListFace()
 {
     mWidget->setFaceType(KPageWidget::List);
 }
 
 void KPageWidgetTest::setTreeFace()
 {
     mWidget->setFaceType(KPageWidget::Tree);
 }
 
 void KPageWidgetTest::setTabbedFace()
 {
     mWidget->setFaceType(KPageWidget::Tabbed);
 }
 
 void KPageWidgetTest::addPage()
 {
     static int counter = 0;
 
-    const QString title = QString(QStringLiteral("dynamic folder %1")).arg(QString::number(counter));
+    const QString title = QStringLiteral("dynamic folder %1").arg(QString::number(counter));
     KPageWidgetItem *item = mWidget->addPage(new QPushButton(title), title);
     item->setIcon(QIcon::fromTheme(QStringLiteral("folder")));
-    item->setHeader(QString(QStringLiteral("Header Test No. %1")).arg(QString::number(counter)));
+    item->setHeader(QStringLiteral("Header Test No. %1").arg(QString::number(counter)));
     item->setCheckable(true);
 
     counter++;
 }
 
 void KPageWidgetTest::addSubPage()
 {
     static int counter = 0;
 
     KPageWidgetItem *item = mWidget->currentPage();
     if (!item) {
         return;
     }
 
-    const QString title = QString(QStringLiteral("subfolder %1")).arg(QString::number(counter));
+    const QString title = QStringLiteral("subfolder %1").arg(QString::number(counter));
     item = mWidget->addSubPage(item, new QLabel(title), title);
     item->setIcon(QIcon::fromTheme(QStringLiteral("folder")));
 
     counter++;
 }
 
 void KPageWidgetTest::insertPage()
 {
     static int counter = 0;
 
     KPageWidgetItem *item = mWidget->currentPage();
     if (!item) {
         return;
     }
 
-    const QString title = QString(QStringLiteral("before folder %1")).arg(QString::number(counter));
+    const QString title = QStringLiteral("before folder %1").arg(QString::number(counter));
     item = mWidget->insertPage(item, new QLabel(title), title);
     item->setIcon(QIcon::fromTheme(QStringLiteral("folder")));
 
     counter++;
 }
 
 void KPageWidgetTest::deletePage()
 {
     KPageWidgetItem *item = mWidget->currentPage();
     if (item) {
         mWidget->removePage(item);
     }
 }
 
 void KPageWidgetTest::currentPageChanged(KPageWidgetItem *current, KPageWidgetItem *before)
 {
     if (current) {
         qDebug("Current item: %s", qPrintable(current->name()));
     } else {
         qDebug("No current item");
     }
 
     if (before) {
         qDebug("Item before: %s", qPrintable(before->name()));
     } else {
         qDebug("No item before");
     }
 }
 
 void KPageWidgetTest::pageToggled(KPageWidgetItem *item, bool checked)
 {
     qDebug("Item %s changed check state to: %s", qPrintable(item->name()), checked ? "checked" : "unchecked");
 }
 
 int main(int argc, char **argv)
 {
     QApplication::setApplicationName(QStringLiteral("KPageWidgetTest"));
 
     QApplication app(argc, argv);
     app.setAttribute(Qt::AA_UseHighDpiPixmaps, true);
 
     KPageWidgetTest testWidget(nullptr);
     testWidget.show();
 
     return app.exec();
 }