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#include <QtTest/QtTest>

#include <QtCore/qlocale.h>

#include <qaudioinput.h>

#include <qaudiodeviceinfo.h>

#include <qaudioformat.h>

#include <qaudio.h>

#include "wavheader.h"

#define AUDIO_BUFFER 192000

#if defined(Q_OS_SYMBIAN)

#define SRCDIR ""

#endif

class tst_QAudioInput : public QObject

{

    Q_OBJECT

public:

    tst_QAudioInput(QObject* parent=0) : QObject(parent) {}

private slots:

    void initTestCase();

    void format();

    void invalidFormat();

    void bufferSize();

    void notifyInterval();

    void disableNotifyInterval();

    void stopWhileStopped();

    void suspendWhileStopped();

    void resumeWhileStopped();

    void pull();

    void pullSuspendResume();

    void push();

    void pushSuspendResume();

    void cleanupTestCase();

private:

    QString formatToFileName(const QAudioFormat &format);

    QString workingDir();

    QAudioDeviceInfo audioDevice;

    QList<QAudioFormat> testFormats;

    QList<QFile*> audioFiles;

    QScopedPointer<QByteArray> m_byteArray;

    QScopedPointer<QBuffer> m_buffer;

};

QString tst_QAudioInput::formatToFileName(const QAudioFormat &format)

{

    const QString formatEndian = (format.byteOrder() == QAudioFormat::LittleEndian)

        ?   QString("LE") : QString("BE");

    const QString formatSigned = (format.sampleType() == QAudioFormat::SignedInt)

        ?   QString("signed") : QString("unsigned");

    return QString("%1_%2_%3_%4_%5")

        .arg(format.frequency())

        .arg(format.sampleSize())

        .arg(formatSigned)

        .arg(formatEndian)

        .arg(format.channels());

}

QString tst_QAudioInput::workingDir()

{

    QDir working(QString(SRCDIR));

    if (working.exists())

        return QString(SRCDIR);

    return QDir::currentPath();

}

void tst_QAudioInput::initTestCase()

{

    // Only perform tests if audio output device exists

    const QList<QAudioDeviceInfo> devices =

        QAudioDeviceInfo::availableDevices(QAudio::AudioInput);

    QVERIFY(devices.size() > 0);

    audioDevice = QAudioDeviceInfo::defaultInputDevice();

    QAudioFormat format;

    format.setCodec("audio/pcm");

    if (audioDevice.isFormatSupported(audioDevice.preferredFormat()))

        testFormats.append(audioDevice.preferredFormat());

    // PCM 8000  mono S8

    format.setFrequency(8000);

    format.setSampleSize(8);

    format.setSampleType(QAudioFormat::SignedInt);

    format.setByteOrder(QAudioFormat::LittleEndian);

    format.setChannels(1);

    if (audioDevice.isFormatSupported(format))

        testFormats.append(format);

    // PCM 11025 mono S16LE

    format.setFrequency(11025);

    format.setSampleSize(16);

    if (audioDevice.isFormatSupported(format))

        testFormats.append(format);

    // PCM 22050 mono S16LE

    format.setFrequency(22050);

    if (audioDevice.isFormatSupported(format))

        testFormats.append(format);

    // PCM 22050 stereo S16LE

    format.setChannels(2);

    if (audioDevice.isFormatSupported(format))

        testFormats.append(format);

    // PCM 44100 stereo S16LE

    format.setFrequency(44100);

    if (audioDevice.isFormatSupported(format))

        testFormats.append(format);

    // PCM 48000 stereo S16LE

    format.setFrequency(48000);

    if (audioDevice.isFormatSupported(format))

        testFormats.append(format);

    QVERIFY(testFormats.size());

    foreach (format, testFormats) {

        QFile* file = new QFile(workingDir() + formatToFileName(format) + QString(".wav"));

        audioFiles.append(file);

    }

}

void tst_QAudioInput::format()

{

    QAudioInput audioInput(audioDevice.preferredFormat(), this);

    QAudioFormat requested = audioDevice.preferredFormat();

    QAudioFormat actual    = audioInput.format();

    QVERIFY2((requested.channels() == actual.channels()),

            QString("channels: requested=%1, actual=%2").arg(requested.channels()).arg(actual.channels()).toLocal8Bit().constData());

    QVERIFY2((requested.frequency() == actual.frequency()),

            QString("frequency: requested=%1, actual=%2").arg(requested.frequency()).arg(actual.frequency()).toLocal8Bit().constData());

    QVERIFY2((requested.sampleSize() == actual.sampleSize()),

            QString("sampleSize: requested=%1, actual=%2").arg(requested.sampleSize()).arg(actual.sampleSize()).toLocal8Bit().constData());

    QVERIFY2((requested.codec() == actual.codec()),

            QString("codec: requested=%1, actual=%2").arg(requested.codec()).arg(actual.codec()).toLocal8Bit().constData());

    QVERIFY2((requested.byteOrder() == actual.byteOrder()),

            QString("byteOrder: requested=%1, actual=%2").arg(requested.byteOrder()).arg(actual.byteOrder()).toLocal8Bit().constData());

    QVERIFY2((requested.sampleType() == actual.sampleType()),

            QString("sampleType: requested=%1, actual=%2").arg(requested.sampleType()).arg(actual.sampleType()).toLocal8Bit().constData());

}

void tst_QAudioInput::invalidFormat()

{

    QAudioFormat invalidFormat;

    invalidFormat.setFrequency(0);

    QVERIFY2(!audioDevice.isFormatSupported(invalidFormat),

            "isFormatSupported() is returning true on an invalid format");

    QAudioInput audioInput(invalidFormat, this);

    // Check that we are in the default state before calling start

    QVERIFY2((audioInput.state() == QAudio::StoppedState), "state() was not set to StoppedState before start()");

    QVERIFY2((audioInput.error() == QAudio::NoError), "error() was not set to QAudio::NoError before start()");

    audioInput.start();

    // Check that error is raised

    QVERIFY2((audioInput.error() == QAudio::OpenError),"error() was not set to QAudio::OpenError after start()");

}

void tst_QAudioInput::bufferSize()

{

    QAudioInput audioInput(audioDevice.preferredFormat(), this);

    QVERIFY2((audioInput.error() == QAudio::NoError), "error() was not set to QAudio::NoError on creation");

    audioInput.setBufferSize(512);

    QVERIFY2((audioInput.error() == QAudio::NoError), "error() is not QAudio::NoError after setBufferSize(512)");

    QVERIFY2((audioInput.bufferSize() == 512),

            QString("bufferSize: requested=512, actual=%2").arg(audioInput.bufferSize()).toLocal8Bit().constData());

    audioInput.setBufferSize(4096);

    QVERIFY2((audioInput.error() == QAudio::NoError), "error() is not QAudio::NoError after setBufferSize(4096)");

    QVERIFY2((audioInput.bufferSize() == 4096),

            QString("bufferSize: requested=4096, actual=%2").arg(audioInput.bufferSize()).toLocal8Bit().constData());

    audioInput.setBufferSize(8192);

    QVERIFY2((audioInput.error() == QAudio::NoError), "error() is not QAudio::NoError after setBufferSize(8192)");

    QVERIFY2((audioInput.bufferSize() == 8192),

            QString("bufferSize: requested=8192, actual=%2").arg(audioInput.bufferSize()).toLocal8Bit().constData());

}

void tst_QAudioInput::notifyInterval()

{

    QAudioInput audioInput(audioDevice.preferredFormat(), this);

    QVERIFY2((audioInput.error() == QAudio::NoError), "error() was not set to QAudio::NoError on creation");

    audioInput.setNotifyInterval(50);

    QVERIFY2((audioInput.error() == QAudio::NoError), "error() is not QAudio::NoError after setNotifyInterval(50)");

    QVERIFY2((audioInput.notifyInterval() == 50),

            QString("notifyInterval: requested=50, actual=%2").arg(audioInput.notifyInterval()).toLocal8Bit().constData());

    audioInput.setNotifyInterval(100);

    QVERIFY2((audioInput.error() == QAudio::NoError), "error() is not QAudio::NoError after setNotifyInterval(100)");

    QVERIFY2((audioInput.notifyInterval() == 100),

            QString("notifyInterval: requested=100, actual=%2").arg(audioInput.notifyInterval()).toLocal8Bit().constData());

    audioInput.setNotifyInterval(250);

    QVERIFY2((audioInput.error() == QAudio::NoError), "error() is not QAudio::NoError after setNotifyInterval(250)");

    QVERIFY2((audioInput.notifyInterval() == 250),

            QString("notifyInterval: requested=250, actual=%2").arg(audioInput.notifyInterval()).toLocal8Bit().constData());

    audioInput.setNotifyInterval(1000);

    QVERIFY2((audioInput.error() == QAudio::NoError), "error() is not QAudio::NoError after setNotifyInterval(1000)");

    QVERIFY2((audioInput.notifyInterval() == 1000),

            QString("notifyInterval: requested=1000, actual=%2").arg(audioInput.notifyInterval()).toLocal8Bit().constData());

}

void tst_QAudioInput::disableNotifyInterval()

{

    // Sets an invalid notification interval (QAudioInput::setNotifyInterval(0))

    // Checks that

    //  - No error is raised (QAudioInput::error() returns QAudio::NoError)

    //  - if <= 0, set to zero and disable notify signal

    QAudioInput audioInput(audioDevice.preferredFormat(), this);

    QVERIFY2((audioInput.error() == QAudio::NoError), "error() was not set to QAudio::NoError on creation");

    audioInput.setNotifyInterval(0);

    QVERIFY2((audioInput.error() == QAudio::NoError), "error() is not QAudio::NoError after setNotifyInterval(0)");

    QVERIFY2((audioInput.notifyInterval() == 0),

            "notifyInterval() is not zero after setNotifyInterval(0)");

    audioInput.setNotifyInterval(-1);

    QVERIFY2((audioInput.error() == QAudio::NoError), "error() is not QAudio::NoError after setNotifyInterval(-1)");

    QVERIFY2((audioInput.notifyInterval() == 0),

            "notifyInterval() is not zero after setNotifyInterval(-1)");

    //start and run to check if notify() is emitted

    if (audioFiles.size() > 0) {

        QAudioInput audioInputCheck(testFormats.at(0), this);

        audioInputCheck.setNotifyInterval(0);

        QSignalSpy notifySignal(&audioInputCheck, SIGNAL(notify()));

        audioFiles.at(0)->open(QIODevice::WriteOnly);

        audioInputCheck.start(audioFiles.at(0));

        QTest::qWait(3000); // 3 seconds should be plenty

        audioInputCheck.stop();

        QVERIFY2((notifySignal.count() == 0),

                QString("didn't disable notify interval: shouldn't have got any but got %1").arg(notifySignal.count()).toLocal8Bit().constData());

        audioFiles.at(0)->close();

    }

}

void tst_QAudioInput::stopWhileStopped()

{

    // Calls QAudioInput::stop() when object is already in StoppedState

    // Checks that

    //  - No state change occurs

    //  - No error is raised (QAudioInput::error() returns QAudio::NoError)

    QAudioInput audioInput(audioDevice.preferredFormat(), this);

    QVERIFY2((audioInput.state() == QAudio::StoppedState), "state() was not set to StoppedState before start()");

    QVERIFY2((audioInput.error() == QAudio::NoError), "error() was not set to QAudio::NoError before start()");

    QSignalSpy stateSignal(&audioInput, SIGNAL(stateChanged(QAudio::State)));

    audioInput.stop();

    // Check that no state transition occurred

    QVERIFY2((stateSignal.count() == 0), "stop() while stopped is emitting a signal and it shouldn't");

    QVERIFY2((audioInput.error() == QAudio::NoError), "error() was not set to QAudio::NoError after stop()");

}

void tst_QAudioInput::suspendWhileStopped()

{

    // Calls QAudioInput::suspend() when object is already in StoppedState

    // Checks that

    //  - No state change occurs

    //  - No error is raised (QAudioInput::error() returns QAudio::NoError)

    QAudioInput audioInput(audioDevice.preferredFormat(), this);

    QVERIFY2((audioInput.state() == QAudio::StoppedState), "state() was not set to StoppedState before start()");

    QVERIFY2((audioInput.error() == QAudio::NoError), "error() was not set to QAudio::NoError before start()");

    QSignalSpy stateSignal(&audioInput, SIGNAL(stateChanged(QAudio::State)));

    audioInput.suspend();

    // Check that no state transition occurred

    QVERIFY2((stateSignal.count() == 0), "stop() while suspended is emitting a signal and it shouldn't");

    QVERIFY2((audioInput.error() == QAudio::NoError), "error() was not set to QAudio::NoError after stop()");

}

void tst_QAudioInput::resumeWhileStopped()

{

    // Calls QAudioInput::resume() when object is already in StoppedState

    // Checks that

    //  - No state change occurs

    //  - No error is raised (QAudioInput::error() returns QAudio::NoError)

    QAudioInput audioInput(audioDevice.preferredFormat(), this);

    QVERIFY2((audioInput.state() == QAudio::StoppedState), "state() was not set to StoppedState before start()");

    QVERIFY2((audioInput.error() == QAudio::NoError), "error() was not set to QAudio::NoError before start()");

    QSignalSpy stateSignal(&audioInput, SIGNAL(stateChanged(QAudio::State)));

    audioInput.resume();

    // Check that no state transition occurred

    QVERIFY2((stateSignal.count() == 0), "resume() while stopped is emitting a signal and it shouldn't");

    QVERIFY2((audioInput.error() == QAudio::NoError), "error() was not set to QAudio::NoError after resume()");

}

void tst_QAudioInput::pull()

{

    for(int i=0; i<audioFiles.count(); i++) {

        QAudioInput audioInput(testFormats.at(i), this);

        audioInput.setNotifyInterval(100);

        QSignalSpy notifySignal(&audioInput, SIGNAL(notify()));

        QSignalSpy stateSignal(&audioInput, SIGNAL(stateChanged(QAudio::State)));

        // Check that we are in the default state before calling start

        QVERIFY2((audioInput.state() == QAudio::StoppedState), "state() was not set to StoppedState before start()");

        QVERIFY2((audioInput.error() == QAudio::NoError), "error() was not set to QAudio::NoError before start()");

        QVERIFY2((audioInput.elapsedUSecs() == qint64(0)),"elapsedUSecs() not zero on creation");

        audioFiles.at(i)->close();

        audioFiles.at(i)->open(QIODevice::WriteOnly);

        WavHeader wavHeader(testFormats.at(i));

        QVERIFY(wavHeader.write(*audioFiles.at(i)));

        audioInput.start(audioFiles.at(i));

        // Check that QAudioInput immediately transitions to ActiveState or IdleState

        QVERIFY2((stateSignal.count() > 0),"didn't emit signals on start()");

        QVERIFY2((audioInput.state() == QAudio::ActiveState || audioInput.state() == QAudio::IdleState),

                "didn't transition to ActiveState or IdleState after start()");

        QVERIFY2((audioInput.error() == QAudio::NoError), "error state is not equal to QAudio::NoError after start()");

        QVERIFY(audioInput.periodSize() > 0);

        stateSignal.clear();

        // Check that 'elapsed' increases

        QTest::qWait(40);

        QVERIFY2((audioInput.elapsedUSecs() > 0), "elapsedUSecs() is still zero after start()");

        // Allow some recording to happen

        QTest::qWait(3000); // 3 seconds should be plenty

        stateSignal.clear();

        qint64 processedUs = audioInput.processedUSecs();

        audioInput.stop();

        QTest::qWait(40);

        QVERIFY2((stateSignal.count() == 1),

            QString("didn't emit StoppedState signal after stop(), got %1 signals instead").arg(stateSignal.count()).toLocal8Bit().constData());

        QVERIFY2((audioInput.state() == QAudio::StoppedState), "didn't transitions to StoppedState after stop()");

        QVERIFY2((processedUs > 2800000 && processedUs < 3200000),

                QString("processedUSecs() doesn't fall in acceptable range, should be 3040000 (%1)").arg(processedUs).toLocal8Bit().constData());

        QVERIFY2((audioInput.error() == QAudio::NoError), "error() is not QAudio::NoError after stop()");

        QVERIFY2((audioInput.elapsedUSecs() == (qint64)0), "elapsedUSecs() not equal to zero in StoppedState");

        QVERIFY2((notifySignal.count() > 20 && notifySignal.count() < 40),

                QString("notify() signals emitted (%1) should be 30").arg(notifySignal.count()).toLocal8Bit().constData());

        WavHeader::writeDataLength(*audioFiles.at(i),audioFiles.at(i)->pos()-WavHeader::headerLength());

        audioFiles.at(i)->close();

    }

}

void tst_QAudioInput::pullSuspendResume()

{

    for(int i=0; i<audioFiles.count(); i++) {

        QAudioInput audioInput(testFormats.at(i), this);

        audioInput.setNotifyInterval(100);

        QSignalSpy notifySignal(&audioInput, SIGNAL(notify()));

        QSignalSpy stateSignal(&audioInput, SIGNAL(stateChanged(QAudio::State)));

        // Check that we are in the default state before calling start

        QVERIFY2((audioInput.state() == QAudio::StoppedState), "state() was not set to StoppedState before start()");

        QVERIFY2((audioInput.error() == QAudio::NoError), "error() was not set to QAudio::NoError before start()");

        QVERIFY2((audioInput.elapsedUSecs() == qint64(0)),"elapsedUSecs() not zero on creation");

        audioFiles.at(i)->close();

        audioFiles.at(i)->open(QIODevice::WriteOnly);

        WavHeader wavHeader(testFormats.at(i));

        QVERIFY(wavHeader.write(*audioFiles.at(i)));

        audioInput.start(audioFiles.at(i));

        // Check that QAudioInput immediately transitions to ActiveState or IdleState

        QVERIFY2((stateSignal.count() > 0),"didn't emit signals on start()");

        QVERIFY2((audioInput.state() == QAudio::ActiveState || audioInput.state() == QAudio::IdleState),

                "didn't transition to ActiveState or IdleState after start()");

        QVERIFY2((audioInput.error() == QAudio::NoError), "error state is not equal to QAudio::NoError after start()");

        QVERIFY(audioInput.periodSize() > 0);

        stateSignal.clear();

        // Check that 'elapsed' increases

        QTest::qWait(40);

        QVERIFY2((audioInput.elapsedUSecs() > 0), "elapsedUSecs() is still zero after start()");

        // Allow some recording to happen

        QTest::qWait(3000); // 3 seconds should be plenty

        QVERIFY2((audioInput.state() == QAudio::ActiveState),

                "didn't transition to ActiveState after some recording");

        QVERIFY2((audioInput.error() == QAudio::NoError), "error state is not equal to QAudio::NoError after some recording");

        stateSignal.clear();

        audioInput.suspend();

        // Give backends running in separate threads a chance to suspend.

        QTest::qWait(100);

        QVERIFY2((stateSignal.count() == 1),

            QString("didn't emit SuspendedState signal after suspend(), got %1 signals instead").arg(stateSignal.count()).toLocal8Bit().constData());

        QVERIFY2((audioInput.state() == QAudio::SuspendedState), "didn't transitions to SuspendedState after stop()");

        QVERIFY2((audioInput.error() == QAudio::NoError), "error() is not QAudio::NoError after stop()");

        stateSignal.clear();

        // Check that only 'elapsed', and not 'processed' increases while suspended

        qint64 elapsedUs = audioInput.elapsedUSecs();

        qint64 processedUs = audioInput.processedUSecs();

        QTest::qWait(1000);

        QVERIFY(audioInput.elapsedUSecs() > elapsedUs);

        QVERIFY(audioInput.processedUSecs() == processedUs);

        audioInput.resume();

        // Give backends running in separate threads a chance to resume.

        QTest::qWait(100);

        // Check that QAudioInput immediately transitions to ActiveState

        QVERIFY2((stateSignal.count() == 1),

                QString("didn't emit signal after resume(), got %1 signals instead").arg(stateSignal.count()).toLocal8Bit().constData());

        QVERIFY2((audioInput.state() == QAudio::ActiveState), "didn't transition to ActiveState after resume()");

        QVERIFY2((audioInput.error() == QAudio::NoError), "error state is not equal to QAudio::NoError after resume()");

        stateSignal.clear();

        processedUs = audioInput.processedUSecs();

        audioInput.stop();

        QTest::qWait(40);

        QVERIFY2((stateSignal.count() == 1),

            QString("didn't emit StoppedState signal after stop(), got %1 signals instead").arg(stateSignal.count()).toLocal8Bit().constData());

        QVERIFY2((audioInput.state() == QAudio::StoppedState), "didn't transitions to StoppedState after stop()");

        QVERIFY2((processedUs > 2800000 && processedUs < 3200000),

                QString("processedUSecs() doesn't fall in acceptable range, should be 3040000 (%1)").arg(processedUs).toLocal8Bit().constData());

        QVERIFY2((audioInput.error() == QAudio::NoError), "error() is not QAudio::NoError after stop()");

        QVERIFY2((audioInput.elapsedUSecs() == (qint64)0), "elapsedUSecs() not equal to zero in StoppedState");

        QVERIFY2((notifySignal.count() > 20 && notifySignal.count() < 40),

                QString("notify() signals emitted (%1) should be 30").arg(notifySignal.count()).toLocal8Bit().constData());

        WavHeader::writeDataLength(*audioFiles.at(i),audioFiles.at(i)->pos()-WavHeader::headerLength());

        audioFiles.at(i)->close();

    }

}

void tst_QAudioInput::push()

{

    for(int i=0; i<audioFiles.count(); i++) {

        QAudioInput audioInput(testFormats.at(i), this);