/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
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** Contact: Nokia Corporation (qt-info@nokia.com)
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** This file is part of the test suite of the Qt Toolkit.
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** 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
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** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
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****************************************************************************/
#include <QDebug>
#include <QIODevice>
#include <QFile>
#include <QString>

#include <qtest.h>


class tst_qiodevice : public QObject
{
    Q_OBJECT
private slots:
    void read_old();
    void read_old_data() { read_data(); }
    //void read_new();
    //void read_new_data() { read_data(); }
private:
    void read_data();
};


void tst_qiodevice::read_data()
{
    QTest::addColumn<qint64>("size");
    QTest::newRow("10k")      << qint64(10 * 1024);
    QTest::newRow("100k")     << qint64(100 * 1024);
    QTest::newRow("1000k")    << qint64(1000 * 1024);
    QTest::newRow("10000k")   << qint64(10000 * 1024);
#ifndef Q_OS_SYMBIAN // Symbian devices don't (yet) have enough available RAM to run these
    QTest::newRow("100000k")  << qint64(100000 * 1024);
    QTest::newRow("1000000k") << qint64(1000000 * 1024);
#endif
}

void tst_qiodevice::read_old()
{
    QFETCH(qint64, size);

    QString name = "tmp" + QString::number(size);

    {
        QFile file(name);
        file.open(QIODevice::WriteOnly);
        file.seek(size);
        file.write("x", 1);
        file.close();
    }

    QBENCHMARK {
        QFile file(name);
        file.open(QIODevice::ReadOnly);
        QByteArray ba;
        qint64 s = size - 1024;
        file.seek(512);
        ba = file.read(s);  // crash happens during this read / assignment operation
    }

    {
        QFile file(name);
        file.remove();
    }
}


QTEST_MAIN(tst_qiodevice)

#include "main.moc"