1 files changed, 87 insertions, 0 deletions
diff --git a/tests/auto/qrand/tst_qrand.cpp b/tests/auto/qrand/tst_qrand.cpp
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+++ b/tests/auto/qrand/tst_qrand.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (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 qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+#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"