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/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the test suite of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia.  For licensing terms and
** conditions see http://qt.digia.com/licensing.  For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** 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, Digia gives you certain additional
** rights.  These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** 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 Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QStringList>
#include <QFile>
#include <qtest.h>

#ifdef Q_OS_SYMBIAN
// In Symbian OS test data is located in applications private dir
// Application private dir is default serach path for files, so SRCDIR can be set to empty
#define SRCDIR ""
#endif

class tst_QString: public QObject
{
    Q_OBJECT
private slots:
    void equals() const;
    void equals_data() const;
    void fromUtf8() const;
};

void tst_QString::equals() const
{
    QFETCH(QString, a);
    QFETCH(QString, b);

    QBENCHMARK {
        a == b;
    }
}

void tst_QString::equals_data() const
{
    static const struct {
        ushort data[80];
        int dummy;              // just to ensure 4-byte alignment
    } data = {
        {
            64, 64, 64, 64,  64, 64, 64, 64,
            64, 64, 64, 64,  64, 64, 64, 64, // 16
            64, 64, 64, 64,  64, 64, 64, 64,
            64, 64, 64, 64,  64, 64, 64, 64, // 32
            64, 64, 64, 64,  64, 64, 64, 64,
            64, 64, 64, 64,  64, 64, 64, 64, // 48
            64, 64, 64, 64,  64, 64, 64, 64,
            64, 64, 64, 64,  64, 64, 64, 64, // 64
            64, 64, 64, 64,  96, 96, 96, 96,
            64, 64, 96, 96,  96, 96, 96, 96  // 80
        }, 0
    };
    const QChar *ptr = reinterpret_cast<const QChar *>(data.data);

    QTest::addColumn<QString>("a");
    QTest::addColumn<QString>("b");
    QString base = QString::fromRawData(ptr, 64);

    QTest::newRow("different-length") << base << QString::fromRawData(ptr, 4);
    QTest::newRow("same-string") << base << base;
    QTest::newRow("same-data") << base << QString::fromRawData(ptr, 64);

    // try to avoid crossing a cache line (that is, at ptr[64])
    QTest::newRow("aligned-aligned-4n")
            << QString::fromRawData(ptr, 60) << QString::fromRawData(ptr + 2, 60);
    QTest::newRow("aligned-unaligned-4n")
            << QString::fromRawData(ptr, 60) << QString::fromRawData(ptr + 1, 60);
    QTest::newRow("unaligned-unaligned-4n")
            << QString::fromRawData(ptr + 1, 60) << QString::fromRawData(ptr + 3, 60);

    QTest::newRow("aligned-aligned-4n+1")
            << QString::fromRawData(ptr, 61) << QString::fromRawData(ptr + 2, 61);
    QTest::newRow("aligned-unaligned-4n+1")
            << QString::fromRawData(ptr, 61) << QString::fromRawData(ptr + 1, 61);
    QTest::newRow("unaligned-unaligned-4n+1")
            << QString::fromRawData(ptr + 1, 61) << QString::fromRawData(ptr + 3, 61);

    QTest::newRow("aligned-aligned-4n-1")
            << QString::fromRawData(ptr, 59) << QString::fromRawData(ptr + 2, 59);
    QTest::newRow("aligned-unaligned-4n-1")
            << QString::fromRawData(ptr, 59) << QString::fromRawData(ptr + 1, 59);
    QTest::newRow("unaligned-unaligned-4n-1")
            << QString::fromRawData(ptr + 1, 59) << QString::fromRawData(ptr + 3, 59);

    QTest::newRow("aligned-aligned-2n")
            << QString::fromRawData(ptr, 58) << QString::fromRawData(ptr + 2, 58);
    QTest::newRow("aligned-unaligned-2n")
            << QString::fromRawData(ptr, 58) << QString::fromRawData(ptr + 1, 58);
    QTest::newRow("unaligned-unaligned-2n")
            << QString::fromRawData(ptr + 1, 58) << QString::fromRawData(ptr + 3, 58);
}

void tst_QString::fromUtf8() const
{
    QFile file(SRCDIR "utf-8.txt");
    if (!file.open(QFile::ReadOnly)) {
        qFatal("Cannot open input file");
        return;
    }
    QByteArray data = file.readAll();
    const char *d = data.constData();
    int size = data.size();

    QBENCHMARK {
        QString::fromUtf8(d, size);
    }
}

QTEST_MAIN(tst_QString)

#include "main.moc"