tests/benchmarks/qtemporaryfile/main.cpp
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     1 /****************************************************************************
       
     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.
       
     8 **
       
     9 ** $QT_BEGIN_LICENSE:LGPL$
       
    10 ** No Commercial Usage
       
    11 ** This file contains pre-release code and may not be distributed.
       
    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
       
    20 ** packaging of this file.  Please review the following information to
       
    21 ** ensure the GNU Lesser General Public License version 2.1 requirements
       
    22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
       
    23 **
       
    24 ** In addition, as a special exception, Nokia gives you certain additional
       
    25 ** rights.  These rights are described in the Nokia Qt LGPL Exception
       
    26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
       
    27 **
       
    28 ** If you have questions regarding the use of this file, please contact
       
    29 ** Nokia at qt-info@nokia.com.
       
    30 **
       
    31 **
       
    32 **
       
    33 **
       
    34 **
       
    35 **
       
    36 **
       
    37 **
       
    38 ** $QT_END_LICENSE$
       
    39 **
       
    40 ****************************************************************************/
       
    41 #include <QDebug>
       
    42 #include <QIODevice>
       
    43 #include <QFile>
       
    44 #include <QString>
       
    45 #include <QTemporaryFile>
       
    46 #include <qtest.h>
       
    47 
       
    48 
       
    49 class tst_qtemporaryfile : public QObject
       
    50 {
       
    51     Q_OBJECT
       
    52 private slots:
       
    53     void openclose_data();
       
    54     void openclose();
       
    55     void readwrite_data() { openclose_data(); }
       
    56     void readwrite();
       
    57 
       
    58 private:
       
    59 };
       
    60 
       
    61 void tst_qtemporaryfile::openclose_data()
       
    62 {
       
    63     QTest::addColumn<qint64>("amount");
       
    64     QTest::newRow("100")   << qint64(100);
       
    65     QTest::newRow("1000")  << qint64(1000);
       
    66     QTest::newRow("10000") << qint64(10000);
       
    67 }
       
    68 
       
    69 void tst_qtemporaryfile::openclose()
       
    70 {
       
    71     QFETCH(qint64, amount);
       
    72 
       
    73     QBENCHMARK {
       
    74         for (qint64 i = 0; i < amount; ++i) {
       
    75             QTemporaryFile file;
       
    76             file.open();
       
    77             file.close();
       
    78         }
       
    79     }
       
    80 }
       
    81 
       
    82 void tst_qtemporaryfile::readwrite()
       
    83 {
       
    84     QFETCH(qint64, amount);
       
    85 
       
    86     const int dataSize = 4096;
       
    87     QByteArray data;
       
    88     data.fill('a', dataSize);
       
    89     QBENCHMARK {
       
    90         for (qint64 i = 0; i < amount; ++i) {
       
    91             QTemporaryFile file;
       
    92             file.open();
       
    93             file.write(data);
       
    94             file.seek(0);
       
    95             file.read(dataSize);
       
    96             file.close();
       
    97         }
       
    98     }
       
    99 }
       
   100 
       
   101 QTEST_MAIN(tst_qtemporaryfile)
       
   102 
       
   103 #include "main.moc"