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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the test suite of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** 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, Nokia gives you certain
** additional rights. These rights are described in the Nokia Qt LGPL
** Exception version 1.1, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtCore>
#include <QtTest/QtTest>
#include <private/cycle_p.h>
class tst_BenchlibTickCounter: public QObject
{
Q_OBJECT
private slots:
void threeBillionTicks();
};
void tst_BenchlibTickCounter::threeBillionTicks()
{
#ifndef HAVE_TICK_COUNTER
QSKIP("Tick counter not available on this platform", SkipAll);
#else
QBENCHMARK {
CycleCounterTicks start = getticks();
double el = 0.;
double max = el;
while (el < 3000000000.) {
/* Verify that elapsed time never decreases */
QVERIFY2(el >= max, qPrintable(
QString("Tick counter is not monotonic\nElapsed moved from %1 to %2")
.arg(max).arg(el)
));
max = el;
el = elapsed(getticks(), start);
}
}
#endif
}
QTEST_MAIN(tst_BenchlibTickCounter)
#include "tst_benchlibtickcounter.moc"
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