diff --git a/Lib/test/test_random.py b/Lib/test/test_random.py
index 6d87d21..bb95ca0 100644
--- a/Lib/test/test_random.py
+++ b/Lib/test/test_random.py
@@ -103,7 +103,8 @@
         shuffle = self.gen.shuffle
         mock_random = unittest.mock.Mock(return_value=0.5)
         seq = bytearray(b'abcdefghijk')
-        shuffle(seq, mock_random)
+        with self.assertWarns(DeprecationWarning):
+            shuffle(seq, mock_random)
         mock_random.assert_called_with()
 
     def test_choice(self):