test that object has a __dir__() implementation

benjaminp · benjaminp · commit dac9acedfd99 · 2011-05-25T09:33:37.000-05:00
diff --git a/Lib/test/test_builtin.py b/Lib/test/test_builtin.py
@@ -385,6 +385,8 @@ def __dir__(self):
         except:
             self.assertEqual(len(dir(sys.exc_info()[2])), 4)
 
+        # test that object has a __dir__()
+        self.assertEqual(sorted([].__dir__()), dir([]))
 
     def test_divmod(self):
         self.assertEqual(divmod(12, 7), (1, 5))
