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Diffstat (limited to 'tests/auto/corelib/kernel/qmath/tst_qmath.cpp')
-rw-r--r-- | tests/auto/corelib/kernel/qmath/tst_qmath.cpp | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/tests/auto/corelib/kernel/qmath/tst_qmath.cpp b/tests/auto/corelib/kernel/qmath/tst_qmath.cpp new file mode 100644 index 0000000000..f908bd6e3e --- /dev/null +++ b/tests/auto/corelib/kernel/qmath/tst_qmath.cpp @@ -0,0 +1,67 @@ +/**************************************************************************** +** +** 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> +#include <qmath.h> + +static const qreal PI = 3.14159265358979323846264338327950288; + +class tst_QMath : public QObject +{ + Q_OBJECT +private slots: + void fastSinCos(); +}; + +void tst_QMath::fastSinCos() +{ + // Test evenly spaced angles from 0 to 2pi radians. + const int LOOP_COUNT = 100000; + for (int i = 0; i < LOOP_COUNT; ++i) { + qreal angle = i * 2 * PI / (LOOP_COUNT - 1); + QVERIFY(qAbs(qSin(angle) - qFastSin(angle)) < 1e-5); + QVERIFY(qAbs(qCos(angle) - qFastCos(angle)) < 1e-5); + } +} + +QTEST_APPLESS_MAIN(tst_QMath) + +#include "tst_qmath.moc" |