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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 either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** 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 1.0, 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.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://www.qtsoftware.com/contact.
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtTest/QtTest>
class tst_QRand: public QObject
{
Q_OBJECT
private slots:
void testqrand();
};
void tst_QRand::testqrand()
{
const int numTestValues = 100;
int generatedNumbers[numTestValues];
bool generatesSameSequence = true;
// test without calling srand() first
// should give same sequence as with srand(1)
for (int i=0; i<numTestValues; ++i)
generatedNumbers[i] = qrand();
qsrand(1);
for (int i=0; i<numTestValues; ++i)
if (generatedNumbers[i] != qrand())
generatesSameSequence = false;
QVERIFY(generatesSameSequence);
for (unsigned int seed=1; seed < 10; seed+=100) {
qsrand(seed);
for (int i=0; i<numTestValues; ++i)
generatedNumbers[i] = qrand();
qsrand(seed);
generatesSameSequence = true;
for (int i=0; i<numTestValues; ++i)
if (generatedNumbers[i] != qrand())
generatesSameSequence = false;
QVERIFY(generatesSameSequence);
}
}
QTEST_MAIN(tst_QRand)
#include "tst_qrand.moc"
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