def METHOD_NAME(self):
    radius = 4
    depth = ImageDepth(radius, napers=500, niters=1,
                       overlap=True, seed=123, progress_bar=False)
    data = np.zeros(self.data.shape)
    mask = np.zeros(data.shape, dtype=bool)
    mask[:, 10:] = True
    with pytest.raises(ValueError):
        depth(data, mask)