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#include <QDebug>

#include <qtest.h>

#include <QtTest/QtTest>

#include <QtNetwork/qnetworkreply.h>

#include <QtNetwork/qnetworkrequest.h>

#include <QtNetwork/qnetworkaccessmanager.h>

#include <QtCore/QTemporaryFile>

#include <QtCore/QFile>

#include "../../auto/network-settings.h"

class qfile_vs_qnetworkaccessmanager : public QObject

{

    Q_OBJECT

    // do not use on symbian.. 100 MB is too large..

    // but.. this is a manual test anyway, so :)

protected:

    void qnamFileRead_iteration(QNetworkAccessManager &manager, QNetworkRequest &request);

    void qnamImmediateFileRead_iteration(QNetworkAccessManager &manager, QNetworkRequest &request);

    void qfileFileRead_iteration();

    static const int iterations = 10;

private slots:

    void qnamFileRead();

    void qnamImmediateFileRead();

    void qfileFileRead();

    void initTestCase();

    void cleanupTestCase();

public:

    qint64 size;

    QTemporaryFile testFile;

    qfile_vs_qnetworkaccessmanager() : QObject(), size(0) {};

};

void qfile_vs_qnetworkaccessmanager::initTestCase()

{

    testFile.open();

    QByteArray qba(1*1024*1024, 'x'); // 1 MB

    for (int i = 0; i < 100; i++) {

        testFile.write(qba);

        testFile.flush();

        size += qba.size();

    } // 100 MB

    testFile.reset();

}

void qfile_vs_qnetworkaccessmanager::cleanupTestCase()

{

}

void qfile_vs_qnetworkaccessmanager::qnamFileRead_iteration(QNetworkAccessManager &manager, QNetworkRequest &request)

{

    QNetworkReply* reply = manager.get(request);

    connect(reply, SIGNAL(finished()), &QTestEventLoop::instance(), SLOT(exitLoop()), Qt::QueuedConnection);

    QTestEventLoop::instance().enterLoop(10);

    QVERIFY(!QTestEventLoop::instance().timeout());

    QByteArray qba = reply->readAll();

    delete reply;

}

void qfile_vs_qnetworkaccessmanager::qnamFileRead()

{

    QNetworkAccessManager manager;

    QTime t;

    QNetworkRequest request(QUrl(testFile.fileName()));

    // do 3 dry runs for cache warmup

    qnamFileRead_iteration(manager, request);

    qnamFileRead_iteration(manager, request);

    qnamFileRead_iteration(manager, request);

    t.start();

    // 10 real runs

    QBENCHMARK_ONCE {

        for (int i = 0; i < iterations; i++) {

            qnamFileRead_iteration(manager, request);

        }

    }

    qint64 elapsed = t.elapsed();

    qDebug() << endl << "Finished!";

    qDebug() << "Bytes:" << size;

    qDebug() << "Speed:" <<  (qreal(size*iterations) / 1024.0) / (qreal(elapsed) / 1000.0) << "KB/sec";

}

void qfile_vs_qnetworkaccessmanager::qnamImmediateFileRead_iteration(QNetworkAccessManager &manager, QNetworkRequest &request)

{

    QNetworkReply* reply = manager.get(request);

    QVERIFY(reply->isFinished()); // should be like that!

    QByteArray qba = reply->readAll();

    delete reply;

}

void qfile_vs_qnetworkaccessmanager::qnamImmediateFileRead()

{

    QNetworkAccessManager manager;

    QTime t;

    QNetworkRequest request(QUrl(testFile.fileName()));

    // do 3 dry runs for cache warmup

    qnamImmediateFileRead_iteration(manager, request);

    qnamImmediateFileRead_iteration(manager, request);

    qnamImmediateFileRead_iteration(manager, request);

    t.start();

    // 10 real runs

    QBENCHMARK_ONCE {

        for (int i = 0; i < iterations; i++) {

            qnamImmediateFileRead_iteration(manager, request);

        }

    }

    qint64 elapsed = t.elapsed();

    qDebug() << endl << "Finished!";

    qDebug() << "Bytes:" << size;

    qDebug() << "Speed:" <<  (qreal(size*iterations) / 1024.0) / (qreal(elapsed) / 1000.0) << "KB/sec";

}

void qfile_vs_qnetworkaccessmanager::qfileFileRead_iteration()

{

    testFile.reset();

    QByteArray qba = testFile.readAll();

}

void qfile_vs_qnetworkaccessmanager::qfileFileRead()

{

    QTime t;

    // do 3 dry runs for cache warmup

    qfileFileRead_iteration();

    qfileFileRead_iteration();

    qfileFileRead_iteration();

    t.start();

    // 10 real runs

    QBENCHMARK_ONCE {

        for (int i = 0; i < iterations; i++) {

            qfileFileRead_iteration();

        }

    }

    qint64 elapsed = t.elapsed();

    qDebug() << endl << "Finished!";

    qDebug() << "Bytes:" << size;

    qDebug() << "Speed:" <<  (qreal(size*iterations) / 1024.0) / (qreal(elapsed) / 1000.0) << "KB/sec";

}

QTEST_MAIN(qfile_vs_qnetworkaccessmanager)

#include "main.moc"