/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the test suite of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia.  For licensing terms and
** conditions see http://qt.digia.com/licensing.  For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** 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, Digia gives you certain additional
** rights.  These rights are described in the Digia 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.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/

#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"