def METHOD_NAME(self):
    '''testing line/plane intersection'''
    plane = Plane(Vector3(0, 0, 0), Vector3(0, 0, 1))
    line = Line(Vector3(0, 0, 100), Vector3(10, 10, -90))
    p = line.plane_intersection(plane)
    assert p.close(Vector3(11.11, 11.11, 0.00), tol=1e-2)