/****************************************************************************
**
** 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 <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>

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
#ifdef Q_OS_SYMBIAN
    for (int i = 0; i < 10; i++) { // for Symbian only 10 MB
#else
    for (int i = 0; i < 100; i++) {
#endif
        testFile.write(qba);
        testFile.flush();
        size += qba.size();
    } // 100 MB or 10 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::fromLocalFile(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::fromLocalFile(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"
