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/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** 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 <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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