tests/auto/selftests/benchlibeventcounter/tst_benchlibeventcounter.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 
       
    42 
       
    43 #include <QtCore>
       
    44 #include <QtTest/QtTest>
       
    45 
       
    46 /* Custom event dispatcher to ensure we don't receive any spontaneous events */
       
    47 class TestEventDispatcher : public QAbstractEventDispatcher
       
    48 {
       
    49     Q_OBJECT
       
    50 
       
    51 public:
       
    52     TestEventDispatcher(QObject* parent =0)
       
    53         : QAbstractEventDispatcher(parent)
       
    54     {}
       
    55     void flush() {}
       
    56     bool hasPendingEvents() { return false; }
       
    57     void interrupt() {}
       
    58     bool processEvents(QEventLoop::ProcessEventsFlags) { return false; }
       
    59     void registerSocketNotifier(QSocketNotifier*) {}
       
    60     int registerTimer(int,QObject*) { return -1; }
       
    61     void registerTimer(int,int,QObject*) {}
       
    62     QList<TimerInfo> registeredTimers(QObject*) const { return QList<TimerInfo>(); }
       
    63     void unregisterSocketNotifier(QSocketNotifier*) {}
       
    64     bool unregisterTimer(int) { return false; }
       
    65     bool unregisterTimers(QObject*) { return false; }
       
    66     void wakeUp() {}
       
    67 };
       
    68 
       
    69 class tst_BenchlibEventCounter: public QObject
       
    70 {
       
    71     Q_OBJECT
       
    72 
       
    73 private slots:
       
    74     void events();
       
    75     void events_data();
       
    76 };
       
    77 
       
    78 void tst_BenchlibEventCounter::events()
       
    79 {
       
    80     QFETCH(int, eventCount);
       
    81 
       
    82     QAbstractEventDispatcher* ed = QAbstractEventDispatcher::instance();
       
    83     QBENCHMARK {
       
    84         for (int i = 0; i < eventCount; ++i) {
       
    85             ed->filterEvent(0);
       
    86         }
       
    87     }
       
    88 }
       
    89 
       
    90 void tst_BenchlibEventCounter::events_data()
       
    91 {
       
    92     QTest::addColumn<int>("eventCount");
       
    93 
       
    94     QTest::newRow("0")      << 0;
       
    95     QTest::newRow("1")      << 1;
       
    96     QTest::newRow("10")     << 10;
       
    97     QTest::newRow("100")    << 100;
       
    98     QTest::newRow("500")    << 500;
       
    99     QTest::newRow("5000")   << 5000;
       
   100     QTest::newRow("100000") << 100000;
       
   101 }
       
   102 
       
   103 int main(int argc, char** argv)
       
   104 {
       
   105     TestEventDispatcher dispatcher;
       
   106     QCoreApplication app(argc, argv);
       
   107     tst_BenchlibEventCounter test;
       
   108     return QTest::qExec(&test, argc, argv);
       
   109 }
       
   110 
       
   111 #include "tst_benchlibeventcounter.moc"