base.py 文件源码

def setUpClass(cls):
        cls.__lockup_timestamp__ = time.time()
        def check_twisted():
            while time.time() - cls.__lockup_timestamp__ < cls.MAX_TEST_TIME:
                time.sleep(2)
                # If the test class completed normally, exit
                if not cls.__testing__:
                    return
            # If we made it here, there is a serious issue which we cannot recover from.
            # Most likely the Twisted threadpool got into a deadlock while shutting down.
            import os, traceback
            print >> sys.stderr, "The test-suite locked up! Force quitting! Thread dump:"
            for tid, stack in sys._current_frames().items():
                if tid != threading.currentThread().ident:
                    print >> sys.stderr, "THREAD#%d" % tid
                    for line in traceback.format_list(traceback.extract_stack(stack)):
                        print >> sys.stderr, "|", line[:-1].replace('\n', '\n|   ')
            os._exit(1)
        t = threading.Thread(target=check_twisted)
        t.daemon = True
        t.start()