Fix merge error

Author: pitrou

Lib/test/_test_multiprocessing.py

@@ -2581,10 +2581,18 @@ def test_async(self):
         self.assertTimingAlmostEqual(get.elapsed, TIMEOUT1)
 
     def test_async_timeout(self):
-        res = self.pool.apply_async(sqr, (6, 5 * TIMEOUT2))
-        get = TimingWrapper(res.get)
-        self.assertRaises(multiprocessing.TimeoutError, get, timeout=TIMEOUT2)
-        self.assertTimingAlmostEqual(get.elapsed, TIMEOUT2)
+        p = self.Pool(3)
+        try:
+            event = threading.Event() if self.TYPE == 'threads' else None
+            res = p.apply_async(sqr, (6, TIMEOUT2 + support.SHORT_TIMEOUT, event))
+            get = TimingWrapper(res.get)
+            self.assertRaises(multiprocessing.TimeoutError, get, timeout=TIMEOUT2)
+            self.assertTimingAlmostEqual(get.elapsed, TIMEOUT2)
+        finally:
+            if event is not None:
+                event.set()
+            p.terminate()
+            p.join()
 
     def test_imap(self):
         it = self.pool.imap(sqr, list(range(10)))