3 files changed, 92 insertions, 0 deletions
diff --git a/tests/auto/corelib/global/qrand/.gitignore b/tests/auto/corelib/global/qrand/.gitignore
new file mode 100644
index 0000000000..e8ec2ebfd1
--- /dev/null
+++ b/tests/auto/corelib/global/qrand/.gitignore
@@ -0,0 +1 @@
+tst_qrand
diff --git a/tests/auto/corelib/global/qrand/qrand.pro b/tests/auto/corelib/global/qrand/qrand.pro
new file mode 100644
index 0000000000..0db8af821c
--- /dev/null
+++ b/tests/auto/corelib/global/qrand/qrand.pro
@@ -0,0 +1,4 @@
+load(qttest_p4)
+SOURCES += tst_qrand.cpp
+QT = core
+CONFIG += parallel_test
diff --git a/tests/auto/corelib/global/qrand/tst_qrand.cpp b/tests/auto/corelib/global/qrand/tst_qrand.cpp
new file mode 100644
index 0000000000..7ac778211c
--- /dev/null
+++ b/tests/auto/corelib/global/qrand/tst_qrand.cpp
@@ -0,0 +1,87 @@
+/****************************************************************************
+**
+** 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 <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"