examples/qtestlib/tutorial5/benchmarking.cpp
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     1 /****************************************************************************
       
     2 **
       
     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
       
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     5 ** Contact: Nokia Corporation (qt-info@nokia.com)
       
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    10 ** No Commercial Usage
       
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    14 ** this package.
       
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    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
       
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    24 ** In addition, as a special exception, Nokia gives you certain additional
       
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    26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
       
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    28 ** If you have questions regarding the use of this file, please contact
       
    29 ** Nokia at qt-info@nokia.com.
       
    30 **
       
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    33 **
       
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    36 **
       
    37 **
       
    38 ** $QT_END_LICENSE$
       
    39 **
       
    40 ****************************************************************************/
       
    41 
       
    42 #include <QtGui>
       
    43 #include <qtest.h>
       
    44 
       
    45 class TestBenchmark : public QObject
       
    46 {
       
    47     Q_OBJECT
       
    48 private slots:
       
    49     void simple();
       
    50     void multiple_data();
       
    51     void multiple();
       
    52     void series_data();
       
    53     void series();
       
    54 };
       
    55 
       
    56 //! [0]
       
    57 void TestBenchmark::simple()
       
    58 {
       
    59     QString str1 = QLatin1String("This is a test string");
       
    60     QString str2 = QLatin1String("This is a test string");
       
    61 
       
    62     QCOMPARE(str1.localeAwareCompare(str2), 0);
       
    63 
       
    64     QBENCHMARK {
       
    65         str1.localeAwareCompare(str2);
       
    66     }
       
    67 }
       
    68 //! [0]
       
    69 
       
    70 //! [1]
       
    71 void TestBenchmark::multiple_data()
       
    72 {
       
    73     QTest::addColumn<bool>("useLocaleCompare");
       
    74     QTest::newRow("locale aware compare") << true;
       
    75     QTest::newRow("standard compare") << false;
       
    76 }
       
    77 //! [1]
       
    78 
       
    79 //! [2]
       
    80 void TestBenchmark::multiple()
       
    81 {
       
    82     QFETCH(bool, useLocaleCompare);
       
    83     QString str1 = QLatin1String("This is a test string");
       
    84     QString str2 = QLatin1String("This is a test string");
       
    85     
       
    86     int result;
       
    87     if (useLocaleCompare) {
       
    88         QBENCHMARK {
       
    89             result = str1.localeAwareCompare(str2);
       
    90         }
       
    91     } else {
       
    92         QBENCHMARK {
       
    93             result = (str1 == str2);
       
    94         }
       
    95     }
       
    96 }
       
    97 //! [2]
       
    98 
       
    99 //! [3]
       
   100 void TestBenchmark::series_data()
       
   101 {
       
   102     QTest::addColumn<bool>("useLocaleCompare");
       
   103     QTest::addColumn<int>("stringSize");
       
   104     
       
   105     for (int i = 1; i < 10000; i += 2000) {
       
   106         QByteArray size = QByteArray::number(i);
       
   107         QTest::newRow(("locale aware compare--" + size).constData()) << true << i;
       
   108         QTest::newRow(("standard compare--" + size).constData()) << false << i;
       
   109     }
       
   110 }
       
   111 //! [4]
       
   112 
       
   113 //! [5]
       
   114 void TestBenchmark::series()
       
   115 {
       
   116     QFETCH(bool, useLocaleCompare);
       
   117     QFETCH(int, stringSize);
       
   118 
       
   119     QString str1 = QString().fill('A', stringSize);
       
   120     QString str2 = QString().fill('A', stringSize);
       
   121     int result;
       
   122     if (useLocaleCompare) {
       
   123         QBENCHMARK {
       
   124             result = str1.localeAwareCompare(str2);
       
   125         }
       
   126     } else {
       
   127         QBENCHMARK {
       
   128             result = (str1 == str2);
       
   129         }
       
   130     }
       
   131 }
       
   132 //! [5]
       
   133 
       
   134 QTEST_MAIN(TestBenchmark)
       
   135 #include "benchmarking.moc"