add QMath test

Signed-off-by: Ivailo Monev <xakepa10@gmail.com>

diff --git a/tests/auto/qmath/CMakeLists.txt b/tests/auto/qmath/CMakeLists.txt
new file mode 100644 (file)
index 0000000..9ffccbf
--- /dev/null
+++ b/tests/auto/qmath/CMakeLists.txt
@@ -0,0 +1,3 @@
+katie_test(tst_qmath
+    ${CMAKE_CURRENT_SOURCE_DIR}/tst_qmath.cpp
+)

diff --git a/tests/auto/qmath/tst_qmath.cpp b/tests/auto/qmath/tst_qmath.cpp
new file mode 100644 (file)
index 0000000..f14789f
--- /dev/null
+++ b/tests/auto/qmath/tst_qmath.cpp
@@ -0,0 +1,47 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 The Qt Company Ltd.
+** Copyright (C) 2016 Ivailo Monev
+**
+** This file is part of the test suite of the Katie 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.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtTest/QtTest>
+#include <qmath.h>
+
+static const qreal PI = 3.14159265358979323846264338327950288;
+
+class tst_QMath : public QObject
+{
+    Q_OBJECT
+private slots:
+    void sinCos();
+};
+
+void tst_QMath::sinCos()
+{
+    // 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) - qSin(angle)) < 1e-5);
+        QVERIFY(qAbs(qCos(angle) - qCos(angle)) < 1e-5);
+    }
+}
+
+QTEST_APPLESS_MAIN(tst_QMath)
+
+#include "moc_tst_qmath.cpp"