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author | Lars Knoll <lars.knoll@nokia.com> | 2009-03-23 09:18:55 (GMT) |
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committer | Simon Hausmann <simon.hausmann@nokia.com> | 2009-03-23 09:18:55 (GMT) |
commit | e5fcad302d86d316390c6b0f62759a067313e8a9 (patch) | |
tree | c2afbf6f1066b6ce261f14341cf6d310e5595bc1 /tests/auto/qrand | |
download | Qt-e5fcad302d86d316390c6b0f62759a067313e8a9.zip Qt-e5fcad302d86d316390c6b0f62759a067313e8a9.tar.gz Qt-e5fcad302d86d316390c6b0f62759a067313e8a9.tar.bz2 |
Long live Qt 4.5!
Diffstat (limited to 'tests/auto/qrand')
-rw-r--r-- | tests/auto/qrand/.gitignore | 1 | ||||
-rw-r--r-- | tests/auto/qrand/qrand.pro | 5 | ||||
-rw-r--r-- | tests/auto/qrand/tst_qrand.cpp | 87 |
3 files changed, 93 insertions, 0 deletions
diff --git a/tests/auto/qrand/.gitignore b/tests/auto/qrand/.gitignore new file mode 100644 index 0000000..e8ec2eb --- /dev/null +++ b/tests/auto/qrand/.gitignore @@ -0,0 +1 @@ +tst_qrand diff --git a/tests/auto/qrand/qrand.pro b/tests/auto/qrand/qrand.pro new file mode 100644 index 0000000..8f90fbc --- /dev/null +++ b/tests/auto/qrand/qrand.pro @@ -0,0 +1,5 @@ +load(qttest_p4) +SOURCES += tst_qrand.cpp +QT = core + + diff --git a/tests/auto/qrand/tst_qrand.cpp b/tests/auto/qrand/tst_qrand.cpp new file mode 100644 index 0000000..43a6201 --- /dev/null +++ b/tests/auto/qrand/tst_qrand.cpp @@ -0,0 +1,87 @@ +/**************************************************************************** +** +** 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" |