Suppress transient refleaks in test_asyncore

Lib/test/test_asyncore.py

@@ -319,16 +319,18 @@ class DispatcherWithSendTests(unittest.TestCase):
     def tearDown(self):
         asyncore.close_all()
 
+    @test_support.reap_threads
     def test_send(self):
-        self.evt = threading.Event()
-        self.sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
-        self.sock.settimeout(3)
-        self.port = test_support.bind_port(self.sock)
+        evt = threading.Event()
+        sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+        sock.settimeout(3)
+        port = test_support.bind_port(sock)
 
         cap = StringIO()
-        args = (self.evt, cap, self.sock)
-        threading.Thread(target=capture_server, args=args).start()
-
+        args = (evt, cap, sock)
+        t = threading.Thread(target=capture_server, args=args)
+        t.start()
+        try:
             # wait a little longer for the server to initialize (it sometimes
             # refuses connections on slow machines without this wait)
             time.sleep(0.2)
@@ -336,7 +338,7 @@ class DispatcherWithSendTests(unittest.TestCase):
             data = "Suppose there isn't a 16-ton weight?"
             d = dispatcherwithsend_noread()
             d.create_socket(socket.AF_INET, socket.SOCK_STREAM)
-        d.connect((HOST, self.port))
+            d.connect((HOST, port))
 
             # give time for socket to connect
             time.sleep(0.1)
@@ -350,9 +352,11 @@ class DispatcherWithSendTests(unittest.TestCase):
                 asyncore.poll()
                 n -= 1
 
-        self.evt.wait()
+            evt.wait()
 
             self.assertEqual(cap.getvalue(), data*2)
+        finally:
+            t.join()
 
 
 class DispatcherWithSendTests_UsePoll(DispatcherWithSendTests):