def test_modify_uns_in_copy():
    # https://github.com/theislab/anndata/issues/571
    adata = ad.AnnData(np.ones((5, 5)), uns={"parent": {"key": "value"}})
    adata_copy = adata[:3].copy()
    adata_copy.uns["parent"]["key"] = "new_value"
    assert adata.uns["parent"]["key"] != adata_copy.uns["parent"]["key"]
def test_default_group(self):
        # It exists
        self.assertTrue(Group.objects.filter(name='Default').count() == 1)

        # Verify that all new users are assigned to default group
        u = User.objects.create_user(username="default_user")
        u.refresh_from_db()
        self.assertTrue(u.groups.filter(name='Default').count() == 1)