GeezerVison

diff --git a/Lib/test/test_asyncio/test_server.py b/Lib/test/test_asyncio/test_server.py
index 860d62d52e..ceea4059ae 100644
--- a/Lib/test/test_asyncio/test_server.py
+++ b/Lib/test/test_asyncio/test_server.py
@@ -120,6 +120,26 @@ async def main(srv):
                 self.loop.run_until_complete(srv.serve_forever())
 
 
+class TestServer2(unittest.IsolatedAsyncioTestCase):
+
+    async def test_wait_closed(self):
+        async def serve(*args):
+            pass
+
+        srv = await asyncio.start_server(serve, socket_helper.HOSTv4, 0)
+
+        # active count = 0
+        wait = asyncio.create_task(srv.wait_closed())
+        await asyncio.sleep(0)
+        self.assertTrue(wait.done())
+
+        # active count != 0
+        srv._attach()
+        wait = asyncio.create_task(srv.wait_closed())
+        await asyncio.sleep(0)
+        self.assertFalse(wait.done())
+
+
 @unittest.skipUnless(hasattr(asyncio, 'ProactorEventLoop'), 'Windows only')
 class ProactorStartServerTests(BaseStartServer, unittest.TestCase):