def METHOD_NAME():
    np.random.seed(22)
    f = np.random.rand(16,16)*230
    f = f.astype(np.uint8)
    f = surf.integral(f)
    points = surf.interest_points(f, is_integral=True)
    with pytest.raises(TypeError):
        surf.descriptors(f.astype(np.int32), points, is_integral=True)