Timeout on failure test_async_fixture_concurrent_teardown

Author: altendky

testing/test_basic.py

@@ -223,13 +223,15 @@ async def this():
         yield 42
 
         there.callback(None)
+        reactor.callLater(5, here.cancel)
         await here
 
     @pytest.fixture
     async def that():
         yield 37
 
         here.callback(None)
+        reactor.callLater(5, there.cancel)
         await there
 
     def test_succeed(this, that):