def test_invalid_scalar_index(adata, index):
    # https://github.com/theislab/anndata/issues/619
    with pytest.raises(IndexError, match=r".*index.* out of range\."):
        _ = adata[index]
def getLenp2(self):
        p1 = self.p1
        ret = p1.distance(self.p3)
        return ret