1 files changed, 10 insertions, 2 deletions
diff --git a/Lib/test/test_asyncio/test_futures.py b/Lib/test/test_asyncio/test_futures.py
index 84d7d45..cf677f6 100644
--- a/Lib/test/test_asyncio/test_futures.py
+++ b/Lib/test/test_asyncio/test_futures.py
@@ -228,14 +228,22 @@ class BaseFutureTests:
         self.assertTrue(hasattr(f, '_cancel_message'))
         self.assertEqual(f._cancel_message, None)
 
-        f.cancel('my message')
+        with self.assertWarnsRegex(
+            DeprecationWarning,
+            "Passing 'msg' argument"
+        ):
+            f.cancel('my message')
         with self.assertRaises(asyncio.CancelledError):
             self.loop.run_until_complete(f)
         self.assertEqual(f._cancel_message, 'my message')
 
     def test_future_cancel_message_setter(self):
         f = self._new_future(loop=self.loop)
-        f.cancel('my message')
+        with self.assertWarnsRegex(
+            DeprecationWarning,
+            "Passing 'msg' argument"
+        ):
+            f.cancel('my message')
         f._cancel_message = 'my new message'
         self.assertEqual(f._cancel_message, 'my new message')