public void Calculates_Correct_Center() { var point1 = new Point(1, 1, 1); var point2 = new Point(0, 0, 0); var center = Point.Center(point1, point2); Assert.AreEqual(0.5, center.X); Assert.AreEqual(0.5, center.Y); Assert.AreEqual(0.5, center.Z); }