test_project.py 文件源码

def test_save_load_proj(self):

        def namestr(obj, namespace):  # return string of gc.referrers
            return [name for name in namespace if namespace[name] is obj]

        # check that nothing else has created a ref to changes (no circular)
        changes = self.proj.get_changes()
        assert len(gc.get_referrers(changes)) == 1  # just one ref (ours!)