def test_negative_scalar_index(adata, index: int, obs: bool):
    pos_index = index + (adata.n_obs if obs else adata.n_vars)

    if obs:
        adata_pos_subset = adata[pos_index]
        adata_neg_subset = adata[index]
    else:
        adata_pos_subset = adata[:, pos_index]
        adata_neg_subset = adata[:, index]

    np.testing.assert_array_equal(
        adata_pos_subset.obs_names, adata_neg_subset.obs_names
    )
    np.testing.assert_array_equal(
        adata_pos_subset.var_names, adata_neg_subset.var_names
    )
def test_filter_factory(self):
        factory = memcache.filter_factory({'max_connections': '3'},
                                          memcache_servers='10.10.10.10:10',
                                          memcache_serialization_support='1')
        thefilter = factory('myapp')
        self.assertEqual(thefilter.app, 'myapp')
        self.assertEqual(thefilter.memcache_servers, '10.10.10.10:10')
        self.assertEqual(thefilter.memcache._allow_pickle, False)
        self.assertEqual(thefilter.memcache._allow_unpickle, True)
        self.assertEqual(
            thefilter.memcache._client_cache['10.10.10.10:10'].max_size, 3)