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++ // Copyright (C) 2016 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
++
++ //! [0]
++ #include <QTest>
++
++ class TestQString: public QObject
++ {
++ Q_OBJECT
++ private slots:
++ void toUpper();
++ };
++ //! [0]
++
++ //! [1]
++ void TestQString::toUpper()
++ {
++ QString str = "Hello";
++ QCOMPARE(str.toUpper(), QString("HELLO"));
++ }
++ //! [1]
++
++ //! [2]
++ QTEST_MAIN(TestQString)
++ #include "testqstring.moc"
++ //! [2]
++