def METHOD_NAME(self):
    l = LandmarkF()
    numpy.testing.assert_equal(l.normal, [0,0,0])
    l.normal = [0,1,0]
    numpy.testing.assert_equal(l.normal, [0,1,0])
    l = LandmarkD()
    numpy.testing.assert_equal(l.normal, [0,0,0])
    l.normal = [0,1,0]
    numpy.testing.assert_equal(l.normal, [0,1,0])