def METHOD_NAME(self):
    mask = np.zeros((6, 12, 12), dtype=np.uint8)
    mask[1:-1, 2:-2, 2:-2] = 1
    result_mask = MaskDistanceSplit.split(mask, 1, False, (2, 1, 1))
    assert np.all(mask == result_mask)
    mask2 = np.copy(mask)
    mask2[2:-2, 4:-4, 4:-4] = 2
    result_mask = MaskDistanceSplit.split(mask, 2, False, (2, 1, 1))
    assert np.all(mask2 == result_mask)