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     2 **

     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

     4 ** All rights reserved.

     5 ** Contact: Nokia Corporation (qt-info@nokia.com)

     6 **

     7 ** This file is part of the test suite of the Qt Toolkit.

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     9 ** $QT_BEGIN_LICENSE:LGPL$

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    12 ** You may use this file in accordance with the terms and conditions

    13 ** contained in the Technology Preview License Agreement accompanying

    14 ** this package.

    15 **

    16 ** GNU Lesser General Public License Usage

    17 ** Alternatively, this file may be used under the terms of the GNU Lesser

    18 ** General Public License version 2.1 as published by the Free Software

    19 ** Foundation and appearing in the file LICENSE.LGPL included in the

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    21 ** ensure the GNU Lesser General Public License version 2.1 requirements

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    24 ** In addition, as a special exception, Nokia gives you certain additional

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    38 ** $QT_END_LICENSE$

    39 **

    40 ****************************************************************************/

    41 #include <QStringList>

    42 #include <QFile>

    43 #include <qtest.h>

    44 

    45 class tst_QString: public QObject

    46 {

    47     Q_OBJECT

    48 private slots:

    49     void equals() const;

    50     void equals_data() const;

    51     void fromUtf8() const;

    52 };

    53 

    54 void tst_QString::equals() const

    55 {

    56     QFETCH(QString, a);

    57     QFETCH(QString, b);

    58 

    59     QBENCHMARK {

    60         a == b;

    61     }

    62 }

    63 

    64 void tst_QString::equals_data() const

    65 {

    66     static const struct {

    67         ushort data[80];

    68         int dummy;              // just to ensure 4-byte alignment

    69     } data = {

    70         {

    71             64, 64, 64, 64,  64, 64, 64, 64,

    72             64, 64, 64, 64,  64, 64, 64, 64, // 16

    73             64, 64, 64, 64,  64, 64, 64, 64,

    74             64, 64, 64, 64,  64, 64, 64, 64, // 32

    75             64, 64, 64, 64,  64, 64, 64, 64,

    76             64, 64, 64, 64,  64, 64, 64, 64, // 48

    77             64, 64, 64, 64,  64, 64, 64, 64,

    78             64, 64, 64, 64,  64, 64, 64, 64, // 64

    79             64, 64, 64, 64,  96, 96, 96, 96,

    80             64, 64, 96, 96,  96, 96, 96, 96  // 80

    81         }, 0

    82     };

    83     const QChar *ptr = reinterpret_cast<const QChar *>(data.data);

    84 

    85     QTest::addColumn<QString>("a");

    86     QTest::addColumn<QString>("b");

    87     QString base = QString::fromRawData(ptr, 64);

    88 

    89     QTest::newRow("different-length") << base << QString::fromRawData(ptr, 4);

    90     QTest::newRow("same-string") << base << base;

    91     QTest::newRow("same-data") << base << QString::fromRawData(ptr, 64);

    92 

    93     // try to avoid crossing a cache line (that is, at ptr[64])

    94     QTest::newRow("aligned-aligned-4n")

    95             << QString::fromRawData(ptr, 60) << QString::fromRawData(ptr + 2, 60);

    96     QTest::newRow("aligned-unaligned-4n")

    97             << QString::fromRawData(ptr, 60) << QString::fromRawData(ptr + 1, 60);

    98     QTest::newRow("unaligned-unaligned-4n")

    99             << QString::fromRawData(ptr + 1, 60) << QString::fromRawData(ptr + 3, 60);

   100 

   101     QTest::newRow("aligned-aligned-4n+1")

   102             << QString::fromRawData(ptr, 61) << QString::fromRawData(ptr + 2, 61);

   103     QTest::newRow("aligned-unaligned-4n+1")

   104             << QString::fromRawData(ptr, 61) << QString::fromRawData(ptr + 1, 61);

   105     QTest::newRow("unaligned-unaligned-4n+1")

   106             << QString::fromRawData(ptr + 1, 61) << QString::fromRawData(ptr + 3, 61);

   107 

   108     QTest::newRow("aligned-aligned-4n-1")

   109             << QString::fromRawData(ptr, 59) << QString::fromRawData(ptr + 2, 59);

   110     QTest::newRow("aligned-unaligned-4n-1")

   111             << QString::fromRawData(ptr, 59) << QString::fromRawData(ptr + 1, 59);

   112     QTest::newRow("unaligned-unaligned-4n-1")

   113             << QString::fromRawData(ptr + 1, 59) << QString::fromRawData(ptr + 3, 59);

   114 

   115     QTest::newRow("aligned-aligned-2n")

   116             << QString::fromRawData(ptr, 58) << QString::fromRawData(ptr + 2, 58);

   117     QTest::newRow("aligned-unaligned-2n")

   118             << QString::fromRawData(ptr, 58) << QString::fromRawData(ptr + 1, 58);

   119     QTest::newRow("unaligned-unaligned-2n")

   120             << QString::fromRawData(ptr + 1, 58) << QString::fromRawData(ptr + 3, 58);

   121 }

   122 

   123 void tst_QString::fromUtf8() const

   124 {

   125     QFile file(SRCDIR "utf-8.txt");

   126     if (!file.open(QFile::ReadOnly)) {

   127         qFatal("Cannot open input file");

   128         return;

   129     }

   130     QByteArray data = file.readAll();

   131     const char *d = data.constData();

   132     int size = data.size();

   133 

   134     QBENCHMARK {

   135         QString::fromUtf8(d, size);

   136     }

   137 }

   138 

   139 QTEST_MAIN(tst_QString)

   140 

   141 #include "main.moc"