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+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the test suite of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** 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.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License version 3.0 as published by the Free Software Foundation
+** and appearing in the file LICENSE.GPL included in the packaging of this
+** file. Please review the following information to ensure the GNU General
+** Public License version 3.0 requirements will be met:
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+
+#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"