@Test
public void testTransform3N3E3S3W() {

    Leg n3 = new Leg(3, 0, 0);
    Coord3D result = Space3DUtils.toCartesian(Coord3D.ORIGIN, n3);
    Leg e3 = new Leg(3, 90, 0);
    result = Space3DUtils.toCartesian(result, e3);
    Leg s3 = new Leg(3, 180, 0);
    result = Space3DUtils.toCartesian(result, s3);
    Leg w3 = new Leg(3, 270, 0);
    result = Space3DUtils.toCartesian(result, w3);
    assertEquals(Coord3D.ORIGIN, result);
}