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mediaobjecttest.cpp

/*  This file is part of the KDE project
    Copyright (C) 2006-2007 Matthias Kretz <kretz@kde.org>

    This program is free software; you can redistribute it and/or
    modify it under the terms of the GNU General Public License as
    published by the Free Software Foundation; either version 2 of
    the License, or (at your option) version 3.

    This program 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 General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.

*/

#include "qtesthelper.h"
#include "loadfakebackend.h"

#include <QtCore/QFile>
#include <QtTest/QTest>
#include <QtCore/QDate>
#include <QtCore/QDebug>
#include <QtCore/QObject>
#include <QtCore/QUrl>
#include <QtTest/QSignalSpy>
#include <phonon/path.h>
#include <phonon/audiooutput.h>
#include <phonon/mediaobject.h>

#include <cstdlib>
#ifndef Q_OS_WIN
#include <unistd.h>
#endif

class MediaObjectTest : public QObject
{
    Q_OBJECT
    public:
        MediaObjectTest() : m_success(false) {}

    Q_SIGNALS:
        void continueTestPlayOnFinish();
    protected Q_SLOTS:
        void enqueueMedia();
        void setMediaAndPlay();
        void stateChanged(Phonon::State, Phonon::State);

    private Q_SLOTS:
        void init();
        void cleanup();

        void initTestCase();
        void checkForDefaults();

        // state change tests
        void stopToStop();
        void stopToPause();
        void stopToPlay();
        void playToPlay();
        void playToPause();
        void playToStop();
        void pauseToPause();
        void pauseToPlay();
        void pauseToStop();

        void testTickSignal();
        void testSeek();
        void testPrefinishMark();
        void testJustInTimeQueuing();
        void testPlayOnFinish();
        void testPlayBeforeFinish();

        void cleanupTestCase();

    private:
        void _startPlayback(Phonon::State currentState = Phonon::StoppedState);
        void _stopPlayback(Phonon::State currentState);
        void _pausePlayback();
        void _testOneSeek(qint64 seekTo);

        QUrl m_url;
        Phonon::MediaObject *m_media;
        QSignalSpy *m_stateChangedSignalSpy;
        QFile *m_file;
        bool m_success;
};

#define startPlayback(currentState) _startPlayback(currentState); if (!m_success) return; m_success = false;
#define stopPlayback(currentState) _stopPlayback(currentState); if (!m_success) return; m_success = false;
#define pausePlayback() _pausePlayback(); if (!m_success) return; m_success = false;
#define testOneSeek(seekTo) _testOneSeek(seekTo); if (!m_success) return; m_success = false;

const qint64 ALLOWED_TIME_FOR_SEEKING = 1000; // 1s
const qint64 ALLOWED_SEEK_INACCURACY = 300; // 0.3s
const qint64 ALLOWED_TICK_INACCURACY = 350; // allow +/- 350 ms inaccuracy

using namespace Phonon;

static qint64 castQVariantToInt64(const QVariant &variant)
{
    return *reinterpret_cast<const qint64 *>(variant.constData());
}

static qint32 castQVariantToInt32(const QVariant &variant)
{
    return *reinterpret_cast<const qint32 *>(variant.constData());
}

static const char *const red    = "\033[0;31m";
static const char *const green  = "\033[0;32m";
static const char *const yellow = "\033[0;33m";
static const char *const blue   = "\033[0;34m";
static const char *const purple = "\033[0;35m";
static const char *const cyan   = "\033[0;36m";
static const char *const white  = "\033[0;37m";
static const char *const normal = "\033[0m";

void MediaObjectTest::stateChanged(Phonon::State newstate, Phonon::State oldstate)
{
    if (newstate == Phonon::ErrorState) {
        QWARN(QByteArray(QByteArray(red) + ".......................................................... ") + QByteArray(QTest::toString(oldstate)) + " to " + QByteArray(QTest::toString(newstate)) + normal);
    } else {
        qDebug() << ".........................................................." << cyan << QTest::toString(oldstate) << "to" << QTest::toString(newstate) << normal;
    }
}

void MediaObjectTest::init()
{
    QCOMPARE(m_media->outputPaths().size(), 1);
    if (m_media->state() == Phonon::ErrorState) {
        if (m_file) {
            m_media->setCurrentSource(m_file);
        } else {
            m_media->setCurrentSource(m_url);
        }
        if (m_media->state() == Phonon::ErrorState) {
            QTest::kWaitForSignal(m_media, SIGNAL(stateChanged(Phonon::State, Phonon::State)));
        }
        if (m_media->state() == Phonon::LoadingState) {
            QTest::kWaitForSignal(m_media, SIGNAL(stateChanged(Phonon::State, Phonon::State)));
        }
        m_stateChangedSignalSpy->clear();
    }
}

void MediaObjectTest::cleanup()
{
    switch (m_media->state()) {
    case Phonon::PlayingState:
    case Phonon::BufferingState:
    case Phonon::PausedState:
        stopPlayback(m_media->state());
        break;
    default:
        break;
    }
    m_stateChangedSignalSpy->clear();
}

void MediaObjectTest::_startPlayback(Phonon::State currentState)
{
    m_stateChangedSignalSpy->clear();
    Phonon::State s = m_media->state();
    QCOMPARE(s, currentState);
    m_media->play();
    while (s != Phonon::PlayingState) {
        if (m_stateChangedSignalSpy->isEmpty()) {
            QTest::kWaitForSignal(m_media, SIGNAL(stateChanged(Phonon::State, Phonon::State)));
        }
        while (!m_stateChangedSignalSpy->isEmpty()) {
            QList<QVariant> args = m_stateChangedSignalSpy->takeFirst();
            Phonon::State laststate = qvariant_cast<Phonon::State>(args.at(1));
            QCOMPARE(laststate, s);
            s = qvariant_cast<Phonon::State>(args.at(0));
            QVERIFY(s == Phonon::BufferingState || s == Phonon::PlayingState);
        }
    }
    QCOMPARE(s, Phonon::PlayingState);
    QCOMPARE(m_media->state(), Phonon::PlayingState);
    m_success = true;
}

void MediaObjectTest::_stopPlayback(Phonon::State currentState)
{
    QVERIFY(currentState != Phonon::ErrorState);
    m_stateChangedSignalSpy->clear();
    Phonon::State s = m_media->state();
    QCOMPARE(s, currentState);
    m_media->stop();
    while (s != Phonon::StoppedState) {
        if (m_stateChangedSignalSpy->isEmpty()) {
            QVERIFY(QTest::kWaitForSignal(m_media, SIGNAL(stateChanged(Phonon::State, Phonon::State)), 4000));
        }
        while (!m_stateChangedSignalSpy->isEmpty()) {
            QList<QVariant> args = m_stateChangedSignalSpy->takeFirst();
            Phonon::State laststate = qvariant_cast<Phonon::State>(args.at(1));
            QCOMPARE(laststate, s);
            s = qvariant_cast<Phonon::State>(args.at(0));
            if (s == Phonon::StoppedState) {
                QVERIFY(m_stateChangedSignalSpy->isEmpty());
                break;
            }
            QVERIFY(s == Phonon::BufferingState || s == Phonon::PlayingState);
        }
    }
    QCOMPARE(s, Phonon::StoppedState);
    QCOMPARE(m_media->state(), Phonon::StoppedState);
    m_success = true;
}

void MediaObjectTest::_pausePlayback()
{
    m_stateChangedSignalSpy->clear();
    Phonon::State s = m_media->state();
    m_media->pause();
    while (s != Phonon::PausedState) {
        if (m_stateChangedSignalSpy->isEmpty()) {
            QTest::kWaitForSignal(m_media, SIGNAL(stateChanged(Phonon::State, Phonon::State)));
        }
        while (!m_stateChangedSignalSpy->isEmpty()) {
            QList<QVariant> args = m_stateChangedSignalSpy->takeFirst();
            Phonon::State laststate = qvariant_cast<Phonon::State>(args.at(1));
            QCOMPARE(laststate, s);
            s = qvariant_cast<Phonon::State>(args.at(0));
            if (s == Phonon::PausedState) {
                QVERIFY(m_stateChangedSignalSpy->isEmpty());
                break;
            }
            QVERIFY(s == Phonon::BufferingState || s == Phonon::PlayingState);
        }
    }
    QCOMPARE(s, Phonon::PausedState);
    QCOMPARE(m_media->state(), Phonon::PausedState);
    m_success = true;
}

void MediaObjectTest::initTestCase()
{
    m_file = 0;
    QCoreApplication::setApplicationName("mediaobjecttest");

    Phonon::loadFakeBackend();
    if (getenv("PHONON_TEST_MEDIASTREAM")) {
        QByteArray filename = getenv("PHONON_TESTURL");
        if (filename.isEmpty()) {
            QWARN("You need to set PHONON_TESTURL to a valid URL. Expect to see failures.");
        }
        if (filename.startsWith("file:///")) {
            filename = filename.right(filename.length() - 7);
        }
        m_file = new QFile(QFile::encodeName(filename));
        m_file->open(QIODevice::ReadOnly);
        QVERIFY(m_file->isOpen());
        QVERIFY(m_file->isReadable());
    }
    if (!m_file) {
        m_url = testUrl();
    }

    m_media = new MediaObject(this);
    connect(m_media, SIGNAL(stateChanged(Phonon::State, Phonon::State)), SLOT(stateChanged(Phonon::State, Phonon::State)));
    m_stateChangedSignalSpy = new QSignalSpy(m_media, SIGNAL(stateChanged(Phonon::State, Phonon::State)));
    QVERIFY(m_stateChangedSignalSpy->isValid());
    m_stateChangedSignalSpy->clear();

    QSignalSpy totalTimeChangedSignalSpy(m_media, SIGNAL(totalTimeChanged(qint64)));
    QVERIFY(m_media->queue().isEmpty());
    QCOMPARE(m_media->currentSource().type(), MediaSource::Invalid);
    QCOMPARE(m_media->state(), Phonon::LoadingState);
    QCOMPARE(m_stateChangedSignalSpy->count(), 0);
    if (m_file) {
        m_media->setCurrentSource(m_file);
        QCOMPARE(m_media->currentSource().type(), MediaSource::Stream);
    } else {
        m_media->setCurrentSource(m_url);
        QCOMPARE(m_media->currentSource().type(), MediaSource::Url);
        QCOMPARE(m_media->currentSource().url(), m_url);
    }
    int emits = m_stateChangedSignalSpy->count();
    Phonon::State s = m_media->state();
    if (s == Phonon::LoadingState) {
        // still in LoadingState, there should be no state change
        QCOMPARE(emits, 0);
        QTest::kWaitForSignal(m_media, SIGNAL(stateChanged(Phonon::State, Phonon::State)));
        emits = m_stateChangedSignalSpy->count();
        s = m_media->state();
    }
    if (s != Phonon::LoadingState) {
        // there should exactly be one state change
        QCOMPARE(emits, 1);
        QList<QVariant> args = m_stateChangedSignalSpy->takeFirst();
        Phonon::State newstate = qvariant_cast<Phonon::State>(args.at(0));
        Phonon::State oldstate = qvariant_cast<Phonon::State>(args.at(1));

        QCOMPARE(Phonon::LoadingState, oldstate);
        QCOMPARE(s, newstate);
        if (Phonon::ErrorState == s) {
            QFAIL("Loading the URL put the MediaObject into the ErrorState. Check that PHONON_TESTURL is set to a valid URL.");
        }
        QCOMPARE(Phonon::StoppedState, s);
        QCOMPARE(m_stateChangedSignalSpy->count(), 0);

        // check for totalTimeChanged signal
        QVERIFY(totalTimeChangedSignalSpy.count() > 0);
        args = totalTimeChangedSignalSpy.takeLast();
        QCOMPARE(m_media->totalTime(), castQVariantToInt64(args.at(0)));
    } else {
        QFAIL("Still in LoadingState after a stateChange signal was emitted. Cannot go on.");
    }

    // AudioOutput is needed else the backend might have no time source
    AudioOutput *audioOutput = new AudioOutput(Phonon::MusicCategory, this);
    //audioOutput->setVolume(0.0f);
    createPath(m_media, audioOutput);
    QCOMPARE(m_media->outputPaths().size(), 1);
    QCOMPARE(audioOutput->inputPaths().size(), 1);
}

void MediaObjectTest::checkForDefaults()
{
    QCOMPARE(m_media->tickInterval(), qint32(0));
    QCOMPARE(m_media->prefinishMark(), qint32(0));
}

void MediaObjectTest::stopToStop()
{
    QCOMPARE(m_stateChangedSignalSpy->count(), 0);
    QCOMPARE(m_media->state(), Phonon::StoppedState);
    m_media->stop();
    QTest::kWaitForSignal(m_media, SIGNAL(stateChanged(Phonon::State, Phonon::State)), 2000);
    QCOMPARE(m_stateChangedSignalSpy->count(), 0);
    QCOMPARE(m_media->state(), Phonon::StoppedState);
}

void MediaObjectTest::stopToPause()
{
    QCOMPARE(m_stateChangedSignalSpy->count(), 0);
    QCOMPARE(m_media->state(), Phonon::StoppedState);
    m_media->pause();
    if (m_stateChangedSignalSpy->isEmpty()) {
        QVERIFY(QTest::kWaitForSignal(m_media, SIGNAL(stateChanged(Phonon::State, Phonon::State)), 6000));
    }
    QCOMPARE(m_stateChangedSignalSpy->count(), 1);
    QCOMPARE(m_media->state(), Phonon::PausedState);
}

void MediaObjectTest::stopToPlay()
{
    startPlayback();
    QTest::kWaitForSignal(m_media, SIGNAL(finished()), 1000);
    stopPlayback(Phonon::PlayingState);
}

void MediaObjectTest::playToPlay()
{
    startPlayback();

    m_media->play();
    QCOMPARE(m_stateChangedSignalSpy->count(), 0);
    QCOMPARE(m_media->state(), Phonon::PlayingState);

    stopPlayback(Phonon::PlayingState);
}

void MediaObjectTest::playToPause()
{
    startPlayback();
    pausePlayback();
    stopPlayback(Phonon::PausedState);
}

void MediaObjectTest::playToStop()
{
    startPlayback();
    stopPlayback(Phonon::PlayingState);
}

void MediaObjectTest::pauseToPause()
{
    startPlayback();
    pausePlayback();

    m_media->pause();
    QCOMPARE(m_stateChangedSignalSpy->count(), 0);
    QCOMPARE(m_media->state(), Phonon::PausedState);

    stopPlayback(Phonon::PausedState);
}

void MediaObjectTest::pauseToPlay()
{
    startPlayback();
    pausePlayback();
    startPlayback(Phonon::PausedState);
    stopPlayback(Phonon::PlayingState);
}

void MediaObjectTest::pauseToStop()
{
    startPlayback();
    pausePlayback();
    stopPlayback(Phonon::PausedState);
}

void MediaObjectTest::_testOneSeek(qint64 seekTo)
{
    qint64 t = m_media->totalTime();
    qint64 oldTime = m_media->currentTime();
    if (oldTime == seekTo) {
        return;
    }

    QTime seekDuration;
    seekDuration.start();
    m_media->seek(seekTo);

    int bufferingTime = 0;
    Phonon::State s = m_media->state();
    QTime timer;
    if (s == Phonon::BufferingState) {
        timer.start();
    }
    QEventLoop loop;
    connect(m_media, SIGNAL(tick(qint64)), &loop, SLOT(quit()));
    connect(m_media, SIGNAL(stateChanged(Phonon::State,Phonon::State)), &loop, SLOT(quit()));

    qint64 c = m_media->currentTime();
    qint64 r = m_media->remainingTime();
    int elapsed = 0;
    while (
            (oldTime < seekTo && c < seekTo) || // seek forwards
            (oldTime > seekTo && c >= oldTime) // seek backwards
         ) {
        QTimer::singleShot(ALLOWED_TIME_FOR_SEEKING, &loop, SLOT(quit()));
        loop.exec();
        c = m_media->currentTime();
        r = m_media->remainingTime();
        if (s == Phonon::BufferingState) {
            bufferingTime += timer.restart();
        } else {
            timer.start();
        }
        s = m_media->state();
        elapsed = seekDuration.elapsed();
        QVERIFY(elapsed - bufferingTime < ALLOWED_TIME_FOR_SEEKING);
    }
    if (c < seekTo) {
        qDebug() << "currentTime:" << c
            << "seek to:" << seekTo;
    }
    QVERIFY(c >= seekTo);
    if (s == Phonon::PausedState) {
        QVERIFY(bufferingTime == 0);
        elapsed = 0;
    }
    if (c > seekTo + ALLOWED_SEEK_INACCURACY + elapsed - bufferingTime) {
        qDebug()
            << "oldTime:" << oldTime
            << "currentTime:" << c
            << "seek to:" << seekTo
            << "elapsed:" << elapsed - bufferingTime;
        QFAIL("currentTime is greater than the requested time + the time that elapsed since the seek started.");
    }
    if (c + r > t + 200 || c + r < t - 200) {
        qDebug()
            << "oldTime:" << oldTime
            << "currentTime:" << c
            << "remainingTime:" << r
            << "totalTime:" << t;
        QFAIL("currentTime + remainingTime doesn't come close enough to totalTime");
    }
    m_success = true;
}

void MediaObjectTest::testSeek()
{
    startPlayback();
    QTime timer;
    timer.start();
    qint64 t = m_media->totalTime();
    qint64 c = m_media->currentTime();
    qint64 r = m_media->remainingTime();
    int elapsed = timer.elapsed();
    if (c + r > t + elapsed || c + r < t - elapsed) {
        qDebug() << "currentTime:" << c
            << "remainingTime:" << r
            << "totalTime:" << t;
        QFAIL("currentTime + remainingTime doesn't come close enough to totalTime");
    }
    QVERIFY(c + r <= t + elapsed);
    QVERIFY(c + r >= t - elapsed);
    if (m_media->isSeekable())
        if (r > 0)
        {
            m_media->setTickInterval(20);
            qint64 s = c + r / 2;
            testOneSeek(s);
//X             timer.start();
//X             m_media->seek(s);
//X             // ugh, after the seek call it may need a few cycles until the seek has actually
//X             // happened, the best way to check that the seek is done must be the tick signal
//X             c = m_media->currentTime();
//X             r = m_media->remainingTime();
//X             while (c < s) {
//X                 QTest::kWaitForSignal(m_media, SIGNAL(tick(qint64)), ALLOWED_TIME_FOR_SEEKING);
//X                 c = m_media->currentTime();
//X                 r = m_media->remainingTime();
//X                 elapsed = timer.elapsed();
//X                 QVERIFY(elapsed < ALLOWED_TIME_FOR_SEEKING);
//X             }
//X             if (c < s) {
//X                 qDebug() << "currentTime:" << c
//X                     << "seek to:" << s;
//X             }
//X             QVERIFY(c >= s);
//X             if (c > s + ALLOWED_SEEK_INACCURACY + elapsed) {
//X                 qDebug() << "currentTime:" << c
//X                     << "seek to:" << s
//X                     << "elapsed:" << elapsed;
//X                 QFAIL("currentTime is greater than the requested time + the time that elapsed since the seek started.");
//X             }
//X             if (c + r > t + 200 || c + r < t - 200) {
//X                 qDebug() << "currentTime:" << c
//X                     << "remainingTime:" << r
//X                     << "totalTime:" << t;
//X                 QFAIL("currentTime + remainingTime doesn't come close enough to totalTime");
//X             }

            s /= 2;
            testOneSeek(s);
            s = s * 3 / 2;
            testOneSeek(s);

            pausePlayback();

            s = s * 3 / 2;
            testOneSeek(s);
            s /= 2;
            testOneSeek(s);

            m_media->setTickInterval(0);
            stopPlayback(Phonon::PausedState);
            return;
        }
        else
            QWARN("didn't test seeking as the MediaObject reported a remaining size <= 0");
    else
        QWARN("didn't test seeking as the MediaObject is not seekable");
    stopPlayback(Phonon::PlayingState);
}

void MediaObjectTest::testPrefinishMark()
{
    const qint32 requestedPrefinishMarkTime = 2000;
    m_media->setPrefinishMark(requestedPrefinishMarkTime);
    QCOMPARE(m_media->prefinishMark(), requestedPrefinishMarkTime);
    QSignalSpy prefinishMarkReachedSpy(m_media, SIGNAL(prefinishMarkReached(qint32)));
    QSignalSpy finishSpy(m_media, SIGNAL(finished()));
    startPlayback();
    State s = m_media->state();
    if (m_media->isSeekable()) {
        m_media->seek(m_media->totalTime() - 4000 - requestedPrefinishMarkTime); // give it 4 seconds
    }
    int wait = 10000;
    while (prefinishMarkReachedSpy.count() == 0 && (m_media->state() == Phonon::PlayingState ||
                m_media->state() == Phonon::BufferingState)) {
        wait = qMax(1000, wait / 2);
        QTest::kWaitForSignal(m_media, SIGNAL(prefinishMarkReached(qint32)), wait);
    }
    // at this point the media should be about to finish playing
    qint64 r = m_media->remainingTime();
    Phonon::State state = m_media->state();
    QCOMPARE(prefinishMarkReachedSpy.count(), 1);
    const qint32 prefinishMark = castQVariantToInt32(prefinishMarkReachedSpy.first().at(0));
    QVERIFY(prefinishMark <= requestedPrefinishMarkTime + 150); // allow it to be up to 150ms too early
    qDebug() << "received prefinishMark" << prefinishMark << ", requested" << requestedPrefinishMarkTime;
    if (state == Phonon::PlayingState || state == Phonon::BufferingState) {
        if (r > prefinishMark) {
            qDebug() << "remainingTime =" << r;
            QFAIL("remainingTime needs to be less than or equal to prefinishMark");
        }
        QVERIFY(r <= prefinishMark);
        QTest::kWaitForSignal(m_media, SIGNAL(finished()));
    } else {
        QVERIFY(prefinishMark >= 0);
    }
    QCOMPARE(finishSpy.count(), 1);

    m_media->setPrefinishMark(0);
    QCOMPARE(m_media->prefinishMark(), qint32(0));

    while (m_stateChangedSignalSpy->count() > 1) {
        QList<QVariant> args = m_stateChangedSignalSpy->takeFirst();
        State oldstate = qvariant_cast<Phonon::State>(args.at(1));
        QCOMPARE(oldstate, s);
        s = qvariant_cast<Phonon::State>(args.at(0));
        QVERIFY(s == Phonon::PlayingState || s == Phonon::BufferingState);
        QVERIFY(s != oldstate);
    }
    QCOMPARE(s, Phonon::PlayingState);

    QCOMPARE(m_stateChangedSignalSpy->count(), 1);
    QList<QVariant> args = m_stateChangedSignalSpy->takeFirst();
    Phonon::State newstate = qvariant_cast<Phonon::State>(args.at(0));
    Phonon::State oldstate = qvariant_cast<Phonon::State>(args.at(1));
    QCOMPARE(oldstate, Phonon::PlayingState);
    QCOMPARE(newstate, Phonon::StoppedState);
    QCOMPARE(m_media->state(), Phonon::StoppedState);
    QCoreApplication::processEvents();
    QCOMPARE(prefinishMarkReachedSpy.count(), 1);
}

void MediaObjectTest::enqueueMedia()
{
    if (m_file) {
        m_media->enqueue(m_file);
    } else {
        m_media->enqueue(m_url);
    }
}

Q_DECLARE_METATYPE(MediaSource)
void MediaObjectTest::testJustInTimeQueuing()
{
    qRegisterMetaType<MediaSource>();
    QSignalSpy currentSourceChanged(m_media, SIGNAL(currentSourceChanged(const MediaSource &)));
    QSignalSpy finished(m_media, SIGNAL(finished()));
    connect(m_media, SIGNAL(aboutToFinish()), SLOT(enqueueMedia()));

    startPlayback();
    if (m_media->isSeekable()) {
        m_media->seek(m_media->totalTime() - 4000);
        qDebug() << "waiting for aboutToFinish()";
        QVERIFY(QTest::kWaitForSignal(m_media, SIGNAL(aboutToFinish()), 6000));
    } else {
        qDebug() << "waiting for aboutToFinish()";
        QVERIFY(QTest::kWaitForSignal(m_media, SIGNAL(aboutToFinish()), 3000 + m_media->remainingTime()));
    }
    disconnect(m_media, SIGNAL(aboutToFinish()), this, SLOT(enqueueMedia()));
    if (currentSourceChanged.isEmpty()) {
        QVERIFY(QTest::kWaitForSignal(m_media, SIGNAL(currentSourceChanged(const MediaSource &)), 3000));
    }
    QCOMPARE(currentSourceChanged.size(), 1);
    QCOMPARE(finished.size(), 0);
    QVERIFY(m_media->queue().isEmpty());
    stopPlayback(m_media->state());
}

void MediaObjectTest::setMediaAndPlay()
{
    m_stateChangedSignalSpy->clear();
    QCOMPARE(m_stateChangedSignalSpy->count(), 0);

    QSignalSpy totalTimeChangedSignalSpy(m_media, SIGNAL(totalTimeChanged(qint64)));
    QVERIFY(m_media->currentSource().type() != MediaSource::Invalid);
    Phonon::State state = m_media->state();
    QVERIFY(state == Phonon::StoppedState || state == Phonon::PlayingState);
    if (m_file) {
        m_media->setCurrentSource(m_file);
    } else {
        m_media->setCurrentSource(m_url);
    }
    // before calling play() we better make sure that if play() finishes very fast that we don't get
    // called again
    disconnect(m_media, SIGNAL(finished()), this, SLOT(setMediaAndPlay()));
    state = m_media->state();
    startPlayback(state);

    /*
    QCOMPARE(m_url, m_media->url());
    int emits = m_stateChangedSignalSpy->count();
    state = m_media->state();
    if (state == Phonon::LoadingState) {
        // now in LoadingState, there should be one state change
        QCOMPARE(emits, 1);
        QList<QVariant> args = m_stateChangedSignalSpy->takeFirst();
        Phonon::State newstate = qvariant_cast<Phonon::State>(args.at(0));
        Phonon::State oldstate = qvariant_cast<Phonon::State>(args.at(1));
        QVERIFY(oldstate == Phonon::StoppedState || oldstate == Phonon::PlayingState);
        QCOMPARE(state, newstate);

        QTest::kWaitForSignal(m_media, SIGNAL(stateChanged(Phonon::State, Phonon::State)));
        emits = m_stateChangedSignalSpy->count();
        state = m_media->state();
        QCOMPARE(emits, 1);
    }
    QVERIFY(state != Phonon::LoadingState);
    // there should exactly be one state change
    QCOMPARE(emits, 1);
    QList<QVariant> args = m_stateChangedSignalSpy->takeFirst();
    Phonon::State newstate = qvariant_cast<Phonon::State>(args.at(0));
    Phonon::State oldstate = qvariant_cast<Phonon::State>(args.at(1));

        QCOMPARE(Phonon::LoadingState, oldstate);
        QCOMPARE(state, newstate);
        if (Phonon::ErrorState == state)
            QFAIL("Loading the URL put the MediaObject into the ErrorState. Check that PHONON_TESTURL is set to a valid URL.");
        QCOMPARE(Phonon::StoppedState, state);
        QCOMPARE(m_stateChangedSignalSpy->count(), 0);

        // check for totalTimeChanged signal
        QVERIFY(totalTimeChangedSignalSpy.count() > 0);
        args = totalTimeChangedSignalSpy.takeLast();
        QCOMPARE(m_media->totalTime(), castQVariantToInt64(args.at(0)));
        */

    emit continueTestPlayOnFinish();
}

void MediaObjectTest::testPlayOnFinish()
{
    connect(m_media, SIGNAL(finished()), SLOT(setMediaAndPlay()));
    startPlayback();
    if (m_media->isSeekable()) {
        m_media->seek(m_media->totalTime() - 4000);
        QVERIFY(QTest::kWaitForSignal(this, SIGNAL(continueTestPlayOnFinish()), 6000));
    } else {
        QVERIFY(QTest::kWaitForSignal(this, SIGNAL(continueTestPlayOnFinish()), 3000 + m_media->remainingTime()));
    }
    QTest::kWaitForSignal(m_media, SIGNAL(finished()), 1000);
    stopPlayback(m_media->state());
}

void MediaObjectTest::testPlayBeforeFinish()
{
    startPlayback();
    QCOMPARE(m_stateChangedSignalSpy->size(), 0);
    Phonon::State state = m_media->state();
    QCOMPARE(state, Phonon::PlayingState);
    if (m_file) {
        m_media->setCurrentSource(m_file);
    } else {
        m_media->setCurrentSource(m_url);
    }
    m_media->play();
    if (m_stateChangedSignalSpy->isEmpty()) {
        QVERIFY(QTest::kWaitForSignal(m_media, SIGNAL(stateChanged(Phonon::State, Phonon::State)), 4000));
    }
    // first (optional) state to reach is StoppedState
    QList<QVariant> args = m_stateChangedSignalSpy->takeFirst();
    Phonon::State oldstate = qvariant_cast<Phonon::State>(args.at(1));
    QCOMPARE(oldstate, state);
    state = qvariant_cast<Phonon::State>(args.at(0));
    if (state == Phonon::StoppedState) {
        if (m_stateChangedSignalSpy->isEmpty()) {
            QVERIFY(QTest::kWaitForSignal(m_media, SIGNAL(stateChanged(Phonon::State, Phonon::State)), 4000));
        }
        args = m_stateChangedSignalSpy->takeFirst();
        oldstate = qvariant_cast<Phonon::State>(args.at(1));
        QCOMPARE(oldstate, state);
        state = qvariant_cast<Phonon::State>(args.at(0));
    }
    // next LoadingState
    QCOMPARE(state, Phonon::LoadingState);
    if (m_stateChangedSignalSpy->isEmpty()) {
        QVERIFY(QTest::kWaitForSignal(m_media, SIGNAL(stateChanged(Phonon::State, Phonon::State)), 4000));
    }
    // next either BufferingState or PlayingState
    args = m_stateChangedSignalSpy->takeFirst();
    oldstate = qvariant_cast<Phonon::State>(args.at(1));
    QCOMPARE(oldstate, state);
    state = qvariant_cast<Phonon::State>(args.at(0));
    if (state == Phonon::BufferingState) {
        if (m_stateChangedSignalSpy->isEmpty()) {
            QVERIFY(QTest::kWaitForSignal(m_media, SIGNAL(stateChanged(Phonon::State, Phonon::State)), 4000)); // buffering can take a while
        }
        args = m_stateChangedSignalSpy->takeFirst();
        oldstate = qvariant_cast<Phonon::State>(args.at(1));
        QCOMPARE(oldstate, state);
        state = qvariant_cast<Phonon::State>(args.at(0));
    }
    QCOMPARE(state, Phonon::PlayingState);
    stopPlayback(Phonon::PlayingState);
}

void MediaObjectTest::testTickSignal()
{
    QTime start1;
    QTime start2;
    for (qint32 tickInterval = 80; tickInterval <= 500; tickInterval *= 2)
    {
        QSignalSpy tickSpy(m_media, SIGNAL(tick(qint64)));
        qDebug() << "Test 20 ticks with an interval of" <<  tickInterval << "ms";
        m_media->setTickInterval(tickInterval);
        QVERIFY(m_media->tickInterval() <= tickInterval);
        QVERIFY(m_media->tickInterval() >= tickInterval/2);
        QVERIFY(tickSpy.isEmpty());
        start1.start();
        startPlayback();
        start2.start();
        int lastCount = 0;
        qint64 s1, s2 = start2.elapsed();
        while (tickSpy.count() < 20 && (m_media->state() == Phonon::PlayingState || m_media->state() == Phonon::BufferingState))
        {
            if (tickSpy.count() > lastCount)
            {
                s1 = start1.elapsed();
                qint64 tickTime = castQVariantToInt64(tickSpy.last().at(0));
                lastCount = tickSpy.count();
                // s1 is the time from before the beginning of the playback to
                // after the tick signal
                // s2 is the time from after the beginning of the playback to
                // before the tick signal
                // so: s2 <= s1

                QVERIFY(tickTime <= m_media->currentTime());
                if (s1 + ALLOWED_TICK_INACCURACY < tickTime || s2 - ALLOWED_TICK_INACCURACY > tickTime) {
                    qDebug()
                        << "\n" << lastCount << "ticks have been received"
                        << "\ntime from before playback was started to after the tick signal was received:" << s1 << "ms"
                        << "\ntime from after playback was started to before the tick signal was received:" << s2 << "ms"
                        << "\nreported tick time:" << tickTime << "ms"
                        << "\nallowed inaccuracy: +/-" << ALLOWED_TICK_INACCURACY << "ms";
                    for (int i = 0; i < tickSpy.count(); ++i) {
                        qDebug() << castQVariantToInt64(tickSpy[i].at(0));
                    }
                }
                QVERIFY(s1 + ALLOWED_TICK_INACCURACY >= tickTime);
                QVERIFY(s2 - ALLOWED_TICK_INACCURACY <= tickTime);
                QVERIFY(s1 >= lastCount * m_media->tickInterval());
                if (s2 > (lastCount + 1) * m_media->tickInterval())
                    QWARN(qPrintable(QString("%1. tick came too late: %2ms elapsed while this tick should have come before %3ms")
                            .arg(lastCount).arg(s2).arg((lastCount + 1) * m_media->tickInterval())));
            } else if (lastCount == 0 && s2 > 20 * m_media->tickInterval()) {
                QFAIL("no tick signals are being received");
            }
            s2 = start2.elapsed();
            QTest::kWaitForSignal(m_media, SIGNAL(tick(qint64)), 2000);
        }
        stopPlayback(Phonon::PlayingState);
    }
}

void MediaObjectTest::cleanupTestCase()
{
    delete m_stateChangedSignalSpy;
    delete m_media;
    delete m_file;
}

QTEST_MAIN(MediaObjectTest)
#include "mediaobjecttest.moc"
// vim: sw=4 ts=4

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