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++ // Copyright (C) 2016 The Qt Company Ltd.
++ // Copyright (C) 2016 Intel Corporation.
++ // Copyright (C) 2020 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
++
++ #include <QtCore/QtDebug>
++ #include <QtTest/QtTest>
++ #include <qstringref.h>
++
++ class tst_QDebug: public QObject
++ {
++ Q_OBJECT
++
++ private slots:
++ void qDebugQStringRef() const;
++ };
++
++ static QtMsgType s_msgType;
++ static QString s_msg;
++ static QByteArray s_file;
++ static int s_line;
++ static QByteArray s_function;
++
++ static void myMessageHandler(QtMsgType type, const QMessageLogContext &context, const QString &msg)
++ {
++ s_msg = msg;
++ s_msgType = type;
++ s_file = context.file;
++ s_line = context.line;
++ s_function = context.function;
++ }
++
++ // Helper class to ensure that the testlib message handler gets
++ // restored at the end of each test function, even if the test
++ // fails or throws an exception.
++ class MessageHandlerSetter
++ {
++ public:
++ MessageHandlerSetter(QtMessageHandler newMessageHandler)
++ : oldMessageHandler(qInstallMessageHandler(newMessageHandler))
++ { }
++
++ ~MessageHandlerSetter()
++ {
++ qInstallMessageHandler(oldMessageHandler);
++ }
++
++ private:
++ QtMessageHandler oldMessageHandler;
++ };
++
++ void tst_QDebug::qDebugQStringRef() const
++ {
++ /* Use a basic string. */
++ {
++ QString file, function;
++ int line = 0;
++ const QString in(QLatin1String("input"));
++ const QStringRef inRef(&in);
++
++ MessageHandlerSetter mhs(myMessageHandler);
++ { qDebug() << inRef; }
++ #ifndef QT_NO_MESSAGELOGCONTEXT
++ file = __FILE__; line = __LINE__ - 2; function = Q_FUNC_INFO;
++ #endif
++ QCOMPARE(s_msgType, QtDebugMsg);
++ QCOMPARE(s_msg, QString::fromLatin1("\"input\""));
++ QCOMPARE(QString::fromLatin1(s_file), file);
++ QCOMPARE(s_line, line);
++ QCOMPARE(QString::fromLatin1(s_function), function);
++ }
++
++ /* Use a null QStringRef. */
++ {
++ QString file, function;
++ int line = 0;
++
++ const QStringRef inRef;
++
++ MessageHandlerSetter mhs(myMessageHandler);
++ { qDebug() << inRef; }
++ #ifndef QT_NO_MESSAGELOGCONTEXT
++ file = __FILE__; line = __LINE__ - 2; function = Q_FUNC_INFO;
++ #endif
++ QCOMPARE(s_msgType, QtDebugMsg);
++ QCOMPARE(s_msg, QString::fromLatin1("\"\""));
++ QCOMPARE(QString::fromLatin1(s_file), file);
++ QCOMPARE(s_line, line);
++ QCOMPARE(QString::fromLatin1(s_function), function);
++ }
++ }
++
++ QTEST_MAIN(tst_QDebug);
++ #include "tst_qdebug.moc"