diff --git a/tests/test_client_session.py b/tests/test_client_session.py
index 102d6b82aab..6fd5c190aab 100644
--- a/tests/test_client_session.py
+++ b/tests/test_client_session.py
@@ -367,11 +367,13 @@ def test_request_ctx_manager_props(loop):
     with aiohttp.ClientSession(loop=loop) as client:
         ctx_mgr = client.get('http://example.com')
 
-        yield from next(ctx_mgr)
+        next(ctx_mgr)
         assert isinstance(ctx_mgr.gi_frame, types.FrameType)
         assert not ctx_mgr.gi_running
         assert isinstance(ctx_mgr.gi_code, types.CodeType)
 
+        # yield from asyncio.sleep(0.1, loop=loop)
+
 
 @asyncio.coroutine
 def test_cookie_jar_usage(loop, test_client):