summaryrefslogtreecommitdiffstats
path: root/tests/auto/corelib/kernel/qmath/tst_qmath.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'tests/auto/corelib/kernel/qmath/tst_qmath.cpp')
-rw-r--r--tests/auto/corelib/kernel/qmath/tst_qmath.cpp67
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"