def METHOD_NAME(self):
    for ioobj, path in self.iter_io_objects(return_path=True):
        obj_reader_base = create_generic_reader(ioobj, target=False)
        obj_reader_single = create_generic_reader(ioobj)
        obj_base = obj_reader_base()
        obj_single = obj_reader_single()
        try:
            assert_same_sub_schema(obj_base, [obj_single])
        except BaseException as exc:
            exc.args += ('from ' + os.path.basename(path),)
            raise