[T] Test constructors.

Tests/MathLib/TestPoint3dWithID.cpp

+/**
+ * @file TestPoint3dWithID.cpp
+ * @date 2015-05-21
+ *
+ * @copyright
+ * Copyright (c) 2012-2015, OpenGeoSys Community (http://www.opengeosys.org)
+ *            Distributed under a Modified BSD License.
+ *              See accompanying file LICENSE.txt or
+ *              http://www.opengeosys.org/LICENSE.txt
+ */
+
+#include <ctime>
+#include "gtest/gtest.h"
+
+#include "Point3dWithID.h"
+
+using namespace MathLib;
+
+TEST(MathLib, Point3dWithID)
+{
+	Point3dWithID p0(0,0,0,1);
+	Point3dWithID p1(p0); // copy constructor
+	Point3dWithID p2(p0, 2); // constructor for resetting the id
+
+	EXPECT_EQ(p0.getID(), p1.getID());
+	EXPECT_NE(p0.getID(), p2.getID());
+}
+