public void PositionTest()
{
Point startPoint = new Point(0, 0, 0);
Point startControlPoint = new Point(1.3, 3, 0);
Point endControlPoint = new Point(6, 4, 0);
Point endPoint = new Point(8, 1.6, 0);
CubicBezier bezier = new CubicBezier(startPoint, endPoint, startControlPoint, endControlPoint);
Assert.AreEqual(new Point(2.8016, 2.5504, 0), bezier.Position(0.4));
}