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Diffstat (limited to 'Lib/test/test_threading.py')
| -rw-r--r-- | Lib/test/test_threading.py | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/Lib/test/test_threading.py b/Lib/test/test_threading.py index ad90010..0a0a62b 100644 --- a/Lib/test/test_threading.py +++ b/Lib/test/test_threading.py @@ -738,6 +738,30 @@ class ThreadTests(BaseTestCase): finally: sys.settrace(old_trace) + @cpython_only + def test_shutdown_locks(self): + for daemon in (False, True): + with self.subTest(daemon=daemon): + event = threading.Event() + thread = threading.Thread(target=event.wait, daemon=daemon) + + # Thread.start() must add lock to _shutdown_locks, + # but only for non-daemon thread + thread.start() + tstate_lock = thread._tstate_lock + if not daemon: + self.assertIn(tstate_lock, threading._shutdown_locks) + else: + self.assertNotIn(tstate_lock, threading._shutdown_locks) + + # unblock the thread and join it + event.set() + thread.join() + + # Thread._stop() must remove tstate_lock from _shutdown_locks. + # Daemon threads must never add it to _shutdown_locks. + self.assertNotIn(tstate_lock, threading._shutdown_locks) + class ThreadJoinOnShutdown(BaseTestCase): |