Method check

Lib/test/test_linecache.py:421–431

(funcs)

                        linecache.getline(name, 1)

            def check(funcs):
                barrier = threading.Barrier(len(funcs))
                threads = []

                for func in funcs:
                    thread = threading.Thread(target=func, args=(barrier,))

                    threads.append(thread)

                with threading_helper.start_threads(threads):
                    pass

            check([linecache_get_line] * 20)