def setup_db(cls_obj: TestCase, table_paths: list): cls_obj.db_client = pymongo.MongoClient() cls_obj.collection_clients = dict() for table_path in table_paths: assert len(table_path) == 2, "must be a valid table path for MongoDB!" cls_obj.collection_clients[table_path] = cls_obj.db_client[table_path[0]][table_path[1]]