3 files changed, 599 insertions, 0 deletions
diff --git a/tests/auto/qmediaplaylist/qmediaplaylist.pro b/tests/auto/qmediaplaylist/qmediaplaylist.pro
new file mode 100644
index 0000000..b114bda
--- /dev/null
+++ b/tests/auto/qmediaplaylist/qmediaplaylist.pro
@@ -0,0 +1,6 @@
+load(qttest_p4)
+
+SOURCES = tst_qmediaplaylist.cpp
+
+QT = core multimedia
+
diff --git a/tests/auto/qmediaplaylist/tmp.unsupported_format b/tests/auto/qmediaplaylist/tmp.unsupported_format
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/tests/auto/qmediaplaylist/tmp.unsupported_format
diff --git a/tests/auto/qmediaplaylist/tst_qmediaplaylist.cpp b/tests/auto/qmediaplaylist/tst_qmediaplaylist.cpp
new file mode 100644
index 0000000..383a407
--- /dev/null
+++ b/tests/auto/qmediaplaylist/tst_qmediaplaylist.cpp
@@ -0,0 +1,593 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtTest/QtTest>
+#include <QDebug>
+#include <QtMultimedia/qmediaservice.h>
+#include <QtMultimedia/qmediaplaylist.h>
+#include <QtMultimedia/qmediaplaylistcontrol.h>
+#include <QtMultimedia/qmediaplaylistnavigator.h>
+#include <QtMultimedia/private/qmediapluginloader_p.h>
+
+
+class MockReadOnlyPlaylistProvider : public QMediaPlaylistProvider
+{
+    Q_OBJECT
+public:
+    MockReadOnlyPlaylistProvider(QObject *parent)
+        :QMediaPlaylistProvider(parent)
+    {
+        m_items.append(QMediaContent(QUrl(QLatin1String("file:///1"))));
+        m_items.append(QMediaContent(QUrl(QLatin1String("file:///2"))));
+        m_items.append(QMediaContent(QUrl(QLatin1String("file:///3"))));
+    }
+
+    int mediaCount() const { return m_items.size(); }
+    QMediaContent media(int index) const
+    {
+        return index >=0 && index < mediaCount() ? m_items.at(index) : QMediaContent();
+    }
+
+private:
+    QList<QMediaContent> m_items;
+};
+
+class MockPlaylistControl : public QMediaPlaylistControl
+{
+    Q_OBJECT
+public:
+    MockPlaylistControl(QObject *parent) : QMediaPlaylistControl(parent)
+    {        
+        m_navigator = new QMediaPlaylistNavigator(new MockReadOnlyPlaylistProvider(this), this);
+    }
+
+    ~MockPlaylistControl()
+    {
+    }
+
+    QMediaPlaylistProvider* playlistProvider() const { return m_navigator->playlist(); }
+    bool setPlaylistProvider(QMediaPlaylistProvider *playlist) { m_navigator->setPlaylist(playlist); return true; }
+
+    int currentIndex() const { return m_navigator->currentIndex(); }
+    void setCurrentIndex(int position) { m_navigator->jump(position); }
+    int nextIndex(int steps) const { return m_navigator->nextIndex(steps); }
+    int previousIndex(int steps) const { return m_navigator->previousIndex(steps); }
+
+    void next() { m_navigator->next(); }
+    void previous() { m_navigator->previous(); }
+
+    QMediaPlaylist::PlaybackMode playbackMode() const { return m_navigator->playbackMode(); }
+    void setPlaybackMode(QMediaPlaylist::PlaybackMode mode) { m_navigator->setPlaybackMode(mode); }
+
+private:    
+    QMediaPlaylistNavigator *m_navigator;
+};
+
+class MockPlaylistService : public QMediaService
+{
+    Q_OBJECT
+
+public:
+    MockPlaylistService():QMediaService(0)
+    {
+        mockControl = new MockPlaylistControl(this);
+    }
+
+    ~MockPlaylistService()
+    {        
+    }
+
+    QMediaControl* control(const char *iid) const
+    {
+        if (qstrcmp(iid, QMediaPlaylistControl_iid) == 0)
+            return mockControl;
+        return 0;
+    }
+
+    MockPlaylistControl *mockControl;
+};
+
+class MockReadOnlyPlaylistObject : public QMediaObject
+{
+    Q_OBJECT
+public:
+    MockReadOnlyPlaylistObject(QObject *parent = 0)
+        :QMediaObject(parent, new MockPlaylistService)
+    {
+    }
+};
+
+
+class tst_QMediaPlaylist : public QObject
+{
+    Q_OBJECT
+public slots:
+    void init();
+    void cleanup();
+    void initTestCase();
+
+private slots:
+    void construction();
+    void append();
+    void insert();
+    void clear();
+    void removeMedia();
+    void currentItem();
+    void saveAndLoad();
+    void playbackMode();
+    void playbackMode_data();
+    void shuffle();
+    void readOnlyPlaylist();
+    void setMediaObject();
+
+private:
+    QMediaContent content1;
+    QMediaContent content2;
+    QMediaContent content3;
+};
+
+void tst_QMediaPlaylist::init()
+{
+}
+
+void tst_QMediaPlaylist::initTestCase()
+{
+    content1 = QMediaContent(QUrl(QLatin1String("file:///1")));
+    content2 = QMediaContent(QUrl(QLatin1String("file:///2")));
+    content3 = QMediaContent(QUrl(QLatin1String("file:///3")));
+}
+
+void tst_QMediaPlaylist::cleanup()
+{
+}
+
+void tst_QMediaPlaylist::construction()
+{
+    QMediaPlaylist playlist;
+    QCOMPARE(playlist.mediaCount(), 0);
+    QVERIFY(playlist.isEmpty());
+}
+
+void tst_QMediaPlaylist::append()
+{
+    QMediaPlaylist playlist;
+    QVERIFY(!playlist.isReadOnly());
+
+    playlist.addMedia(content1);
+    QCOMPARE(playlist.mediaCount(), 1);
+    QCOMPARE(playlist.media(0), content1);
+
+    QSignalSpy aboutToBeInsertedSignalSpy(&playlist, SIGNAL(mediaAboutToBeInserted(int,int)));
+    QSignalSpy insertedSignalSpy(&playlist, SIGNAL(mediaInserted(int,int)));
+    playlist.addMedia(content2);
+    QCOMPARE(playlist.mediaCount(), 2);
+    QCOMPARE(playlist.media(1), content2);
+
+    QCOMPARE(aboutToBeInsertedSignalSpy.count(), 1);
+    QCOMPARE(aboutToBeInsertedSignalSpy.first()[0].toInt(), 1);
+    QCOMPARE(aboutToBeInsertedSignalSpy.first()[1].toInt(), 1);
+
+    QCOMPARE(insertedSignalSpy.count(), 1);
+    QCOMPARE(insertedSignalSpy.first()[0].toInt(), 1);
+    QCOMPARE(insertedSignalSpy.first()[1].toInt(), 1);
+
+    aboutToBeInsertedSignalSpy.clear();
+    insertedSignalSpy.clear();
+
+    QMediaContent content4(QUrl(QLatin1String("file:///4")));
+    QMediaContent content5(QUrl(QLatin1String("file:///5")));
+    playlist.addMedia(QList<QMediaContent>() << content3 << content4 << content5);
+    QCOMPARE(playlist.mediaCount(), 5);
+    QCOMPARE(playlist.media(2), content3);
+    QCOMPARE(playlist.media(3), content4);
+    QCOMPARE(playlist.media(4), content5);
+
+    QCOMPARE(aboutToBeInsertedSignalSpy.count(), 1);
+    QCOMPARE(aboutToBeInsertedSignalSpy[0][0].toInt(), 2);
+    QCOMPARE(aboutToBeInsertedSignalSpy[0][1].toInt(), 4);
+
+    QCOMPARE(insertedSignalSpy.count(), 1);
+    QCOMPARE(insertedSignalSpy[0][0].toInt(), 2);
+    QCOMPARE(insertedSignalSpy[0][1].toInt(), 4);
+
+    aboutToBeInsertedSignalSpy.clear();
+    insertedSignalSpy.clear();
+
+    playlist.addMedia(QList<QMediaContent>());
+    QCOMPARE(aboutToBeInsertedSignalSpy.count(), 0);
+    QCOMPARE(insertedSignalSpy.count(), 0);
+}
+
+void tst_QMediaPlaylist::insert()
+{
+    QMediaPlaylist playlist;
+    QVERIFY(!playlist.isReadOnly());
+
+    playlist.addMedia(content1);
+    QCOMPARE(playlist.mediaCount(), 1);
+    QCOMPARE(playlist.media(0), content1);
+
+    playlist.addMedia(content2);
+    QCOMPARE(playlist.mediaCount(), 2);
+    QCOMPARE(playlist.media(1), content2);
+
+    QSignalSpy aboutToBeInsertedSignalSpy(&playlist, SIGNAL(mediaAboutToBeInserted(int,int)));
+    QSignalSpy insertedSignalSpy(&playlist, SIGNAL(mediaInserted(int,int)));
+
+    playlist.insertMedia(1, content3);
+    QCOMPARE(playlist.mediaCount(), 3);
+    QCOMPARE(playlist.media(0), content1);
+    QCOMPARE(playlist.media(1), content3);
+    QCOMPARE(playlist.media(2), content2);
+
+    QCOMPARE(aboutToBeInsertedSignalSpy.count(), 1);
+    QCOMPARE(aboutToBeInsertedSignalSpy.first()[0].toInt(), 1);
+    QCOMPARE(aboutToBeInsertedSignalSpy.first()[1].toInt(), 1);
+
+    QCOMPARE(insertedSignalSpy.count(), 1);
+    QCOMPARE(insertedSignalSpy.first()[0].toInt(), 1);
+    QCOMPARE(insertedSignalSpy.first()[1].toInt(), 1);
+
+    aboutToBeInsertedSignalSpy.clear();
+    insertedSignalSpy.clear();
+
+    QMediaContent content4(QUrl(QLatin1String("file:///4")));
+    QMediaContent content5(QUrl(QLatin1String("file:///5")));
+    playlist.insertMedia(1, QList<QMediaContent>() << content4 << content5);
+
+    QCOMPARE(playlist.media(0), content1);
+    QCOMPARE(playlist.media(1), content4);
+    QCOMPARE(playlist.media(2), content5);
+    QCOMPARE(playlist.media(3), content3);
+    QCOMPARE(playlist.media(4), content2);
+    QCOMPARE(aboutToBeInsertedSignalSpy.count(), 1);
+    QCOMPARE(aboutToBeInsertedSignalSpy[0][0].toInt(), 1);
+    QCOMPARE(aboutToBeInsertedSignalSpy[0][1].toInt(), 2);
+
+    QCOMPARE(insertedSignalSpy.count(), 1);
+    QCOMPARE(insertedSignalSpy[0][0].toInt(), 1);
+    QCOMPARE(insertedSignalSpy[0][1].toInt(), 2);
+
+    aboutToBeInsertedSignalSpy.clear();
+    insertedSignalSpy.clear();
+
+    playlist.insertMedia(1, QList<QMediaContent>());
+    QCOMPARE(aboutToBeInsertedSignalSpy.count(), 0);
+    QCOMPARE(insertedSignalSpy.count(), 0);
+}
+
+
+void tst_QMediaPlaylist::currentItem()
+{
+    QMediaPlaylist playlist;
+    playlist.addMedia(content1);
+    playlist.addMedia(content2);
+
+    QCOMPARE(playlist.currentIndex(), -1);
+    QCOMPARE(playlist.currentMedia(), QMediaContent());
+
+    QCOMPARE(playlist.nextIndex(), 0);
+    QCOMPARE(playlist.nextIndex(2), 1);
+    QCOMPARE(playlist.previousIndex(), 1);
+    QCOMPARE(playlist.previousIndex(2), 0);
+
+    playlist.setCurrentIndex(0);
+    QCOMPARE(playlist.currentIndex(), 0);
+    QCOMPARE(playlist.currentMedia(), content1);
+
+    QCOMPARE(playlist.nextIndex(), 1);
+    QCOMPARE(playlist.nextIndex(2), -1);
+    QCOMPARE(playlist.previousIndex(), -1);
+    QCOMPARE(playlist.previousIndex(2), -1);
+
+    playlist.setCurrentIndex(1);
+    QCOMPARE(playlist.currentIndex(), 1);
+    QCOMPARE(playlist.currentMedia(), content2);
+
+    QCOMPARE(playlist.nextIndex(), -1);
+    QCOMPARE(playlist.nextIndex(2), -1);
+    QCOMPARE(playlist.previousIndex(), 0);
+    QCOMPARE(playlist.previousIndex(2), -1);
+
+    QTest::ignoreMessage(QtWarningMsg, "QMediaPlaylistNavigator: Jump outside playlist range ");
+    playlist.setCurrentIndex(2);
+
+    QCOMPARE(playlist.currentIndex(), -1);
+    QCOMPARE(playlist.currentMedia(), QMediaContent());
+}
+
+void tst_QMediaPlaylist::clear()
+{
+    QMediaPlaylist playlist;
+    playlist.addMedia(content1);
+    playlist.addMedia(content2);
+
+    playlist.clear();
+    QVERIFY(playlist.isEmpty());
+    QCOMPARE(playlist.mediaCount(), 0);
+}
+
+void tst_QMediaPlaylist::removeMedia()
+{
+    QMediaPlaylist playlist;
+    playlist.addMedia(content1);
+    playlist.addMedia(content2);
+    playlist.addMedia(content3);
+
+    QSignalSpy aboutToBeRemovedSignalSpy(&playlist, SIGNAL(mediaAboutToBeRemoved(int,int)));
+    QSignalSpy removedSignalSpy(&playlist, SIGNAL(mediaRemoved(int,int)));
+    playlist.removeMedia(1);
+    QCOMPARE(playlist.mediaCount(), 2);
+    QCOMPARE(playlist.media(1), content3);
+
+    QCOMPARE(aboutToBeRemovedSignalSpy.count(), 1);
+    QCOMPARE(aboutToBeRemovedSignalSpy.first()[0].toInt(), 1);
+    QCOMPARE(aboutToBeRemovedSignalSpy.first()[1].toInt(), 1);
+
+    QCOMPARE(removedSignalSpy.count(), 1);
+    QCOMPARE(removedSignalSpy.first()[0].toInt(), 1);
+    QCOMPARE(removedSignalSpy.first()[1].toInt(), 1);
+
+    aboutToBeRemovedSignalSpy.clear();
+    removedSignalSpy.clear();
+
+    playlist.removeMedia(0,1);
+    QVERIFY(playlist.isEmpty());
+
+    QCOMPARE(aboutToBeRemovedSignalSpy.count(), 1);
+    QCOMPARE(aboutToBeRemovedSignalSpy.first()[0].toInt(), 0);
+    QCOMPARE(aboutToBeRemovedSignalSpy.first()[1].toInt(), 1);
+
+    QCOMPARE(removedSignalSpy.count(), 1);
+    QCOMPARE(removedSignalSpy.first()[0].toInt(), 0);
+    QCOMPARE(removedSignalSpy.first()[1].toInt(), 1);
+
+
+    playlist.addMedia(content1);
+    playlist.addMedia(content2);
+    playlist.addMedia(content3);
+
+    playlist.removeMedia(0,1);
+    QCOMPARE(playlist.mediaCount(), 1);
+    QCOMPARE(playlist.media(0), content3);
+}
+
+void tst_QMediaPlaylist::saveAndLoad()
+{
+    QMediaPlaylist playlist;
+    playlist.addMedia(content1);
+    playlist.addMedia(content2);
+    playlist.addMedia(content3);
+
+    QCOMPARE(playlist.error(), QMediaPlaylist::NoError);
+    QVERIFY(playlist.errorString().isEmpty());
+
+    QBuffer buffer;
+    buffer.open(QBuffer::ReadWrite);
+
+    bool res = playlist.save(&buffer, "unsupported_format");
+    QVERIFY(!res);
+    QVERIFY(playlist.error() != QMediaPlaylist::NoError);
+    QVERIFY(!playlist.errorString().isEmpty());
+
+    QSignalSpy errorSignal(&playlist, SIGNAL(loadFailed()));
+    playlist.load(&buffer, "unsupported_format");
+    QCOMPARE(errorSignal.size(), 1);
+    QVERIFY(playlist.error() != QMediaPlaylist::NoError);
+    QVERIFY(!playlist.errorString().isEmpty());
+
+    res = playlist.save(QUrl(QLatin1String("tmp.unsupported_format")), "unsupported_format");
+    QVERIFY(!res);
+    QVERIFY(playlist.error() != QMediaPlaylist::NoError);
+    QVERIFY(!playlist.errorString().isEmpty());
+
+    errorSignal.clear();
+    playlist.load(QUrl(QLatin1String("tmp.unsupported_format")), "unsupported_format");
+    QCOMPARE(errorSignal.size(), 1);
+    QVERIFY(playlist.error() != QMediaPlaylist::NoError);
+    QVERIFY(!playlist.errorString().isEmpty());
+}
+
+void tst_QMediaPlaylist::playbackMode_data()
+{
+    QTest::addColumn<QMediaPlaylist::PlaybackMode>("playbackMode");
+    QTest::addColumn<int>("expectedPrevious");
+    QTest::addColumn<int>("pos");
+    QTest::addColumn<int>("expectedNext");
+
+    QTest::newRow("Linear, 0") << QMediaPlaylist::Linear << -1 << 0 << 1;
+    QTest::newRow("Linear, 1") << QMediaPlaylist::Linear << 0 << 1 << 2;
+    QTest::newRow("Linear, 2") << QMediaPlaylist::Linear << 1 << 2 << -1;
+
+    QTest::newRow("Loop, 0") << QMediaPlaylist::Loop << 2 << 0 << 1;
+    QTest::newRow("Loop, 1") << QMediaPlaylist::Loop << 0 << 1 << 2;
+    QTest::newRow("Lopp, 2") << QMediaPlaylist::Loop << 1 << 2 << 0;
+
+    QTest::newRow("ItemOnce, 1") << QMediaPlaylist::CurrentItemOnce << -1 << 1 << -1;
+    QTest::newRow("ItemInLoop, 1") << QMediaPlaylist::CurrentItemInLoop << 1 << 1 << 1;
+
+}
+
+void tst_QMediaPlaylist::playbackMode()
+{
+    QFETCH(QMediaPlaylist::PlaybackMode, playbackMode);
+    QFETCH(int, expectedPrevious);
+    QFETCH(int, pos);
+    QFETCH(int, expectedNext);
+
+    QMediaPlaylist playlist;
+    playlist.addMedia(content1);
+    playlist.addMedia(content2);
+    playlist.addMedia(content3);
+
+    QCOMPARE(playlist.playbackMode(), QMediaPlaylist::Linear);
+    QCOMPARE(playlist.currentIndex(), -1);
+
+    playlist.setPlaybackMode(playbackMode);
+    QCOMPARE(playlist.playbackMode(), playbackMode);
+
+    playlist.setCurrentIndex(pos);
+    QCOMPARE(playlist.currentIndex(), pos);
+    QCOMPARE(playlist.nextIndex(), expectedNext);
+    QCOMPARE(playlist.previousIndex(), expectedPrevious);
+
+    playlist.next();
+    QCOMPARE(playlist.currentIndex(), expectedNext);
+
+    playlist.setCurrentIndex(pos);
+    playlist.previous();
+    QCOMPARE(playlist.currentIndex(), expectedPrevious);
+}
+
+void tst_QMediaPlaylist::shuffle()
+{
+    QMediaPlaylist playlist;
+    QList<QMediaContent> contentList;
+
+    for (int i=0; i<100; i++) {
+        QMediaContent content(QUrl(QString::number(i)));
+        contentList.append(content);
+        playlist.addMedia(content);
+    }
+
+    playlist.shuffle();
+
+    QList<QMediaContent> shuffledContentList;
+    for (int i=0; i<playlist.mediaCount(); i++)
+        shuffledContentList.append(playlist.media(i));
+
+    QVERIFY(contentList != shuffledContentList);
+
+}
+
+void tst_QMediaPlaylist::readOnlyPlaylist()
+{
+    MockReadOnlyPlaylistObject mediaObject;
+    QMediaPlaylist playlist;
+    playlist.setMediaObject(&mediaObject);
+
+    QVERIFY(playlist.isReadOnly());
+    QVERIFY(!playlist.isEmpty());
+    QCOMPARE(playlist.mediaCount(), 3);
+
+    QCOMPARE(playlist.media(0), content1);
+    QCOMPARE(playlist.media(1), content2);
+    QCOMPARE(playlist.media(2), content3);
+    QCOMPARE(playlist.media(3), QMediaContent());
+
+    //it's a read only playlist, so all the modification should fail
+    QVERIFY(!playlist.addMedia(content1));
+    QCOMPARE(playlist.mediaCount(), 3);
+    QVERIFY(!playlist.addMedia(QList<QMediaContent>() << content1 << content2));
+    QCOMPARE(playlist.mediaCount(), 3);
+    QVERIFY(!playlist.insertMedia(1, content1));
+    QCOMPARE(playlist.mediaCount(), 3);
+    QVERIFY(!playlist.insertMedia(1, QList<QMediaContent>() << content1 << content2));
+    QCOMPARE(playlist.mediaCount(), 3);
+    QVERIFY(!playlist.removeMedia(1));
+    QCOMPARE(playlist.mediaCount(), 3);
+    QVERIFY(!playlist.removeMedia(0,2));
+    QCOMPARE(playlist.mediaCount(), 3);
+    QVERIFY(!playlist.clear());
+    QCOMPARE(playlist.mediaCount(), 3);
+
+    //but it is still allowed to append/insert an empty list
+    QVERIFY(playlist.addMedia(QList<QMediaContent>()));
+    QVERIFY(playlist.insertMedia(1, QList<QMediaContent>()));
+
+    playlist.shuffle();
+    //it's still the same
+    QCOMPARE(playlist.media(0), content1);
+    QCOMPARE(playlist.media(1), content2);
+    QCOMPARE(playlist.media(2), content3);
+    QCOMPARE(playlist.media(3), QMediaContent());
+
+
+    //load to read only playlist should fail,
+    //unless underlaying provider supports it
+    QBuffer buffer;
+    buffer.open(QBuffer::ReadWrite);
+    buffer.write(QByteArray("file:///1\nfile:///2"));
+    buffer.seek(0);
+
+    QSignalSpy errorSignal(&playlist, SIGNAL(loadFailed()));
+    playlist.load(&buffer, "m3u");    
+    QCOMPARE(errorSignal.size(), 1);
+    QCOMPARE(playlist.error(), QMediaPlaylist::AccessDeniedError);
+    QVERIFY(!playlist.errorString().isEmpty());
+    QCOMPARE(playlist.mediaCount(), 3);
+
+    errorSignal.clear();
+    playlist.load(QUrl(QLatin1String("tmp.m3u")), "m3u");
+
+    QCOMPARE(errorSignal.size(), 1);
+    QCOMPARE(playlist.error(), QMediaPlaylist::AccessDeniedError);
+    QVERIFY(!playlist.errorString().isEmpty());
+    QCOMPARE(playlist.mediaCount(), 3);
+}
+
+void tst_QMediaPlaylist::setMediaObject()
+{
+    MockReadOnlyPlaylistObject mediaObject;
+
+    QMediaPlaylist playlist;
+    QVERIFY(playlist.mediaObject() == 0);
+    QVERIFY(!playlist.isReadOnly());
+
+    playlist.setMediaObject(&mediaObject);
+    QCOMPARE(playlist.mediaObject(), qobject_cast<QMediaObject*>(&mediaObject));
+    QCOMPARE(playlist.mediaCount(), 3);
+    QVERIFY(playlist.isReadOnly());
+
+    playlist.setMediaObject(0);
+    QVERIFY(playlist.mediaObject() == 0);
+    QCOMPARE(playlist.mediaCount(), 0);
+    QVERIFY(!playlist.isReadOnly());
+
+    playlist.setMediaObject(&mediaObject);
+    QCOMPARE(playlist.mediaObject(), qobject_cast<QMediaObject*>(&mediaObject));
+    QCOMPARE(playlist.mediaCount(), 3);
+    QVERIFY(playlist.isReadOnly());
+}
+
+QTEST_MAIN(tst_QMediaPlaylist)
+#include "tst_qmediaplaylist.moc"
+