this should be an identity test

benjaminp · benjaminp · commit eef80b6e70f9 · 2011-07-14T10:03:35.000-05:00
diff --git a/Lib/test/test_http_cookiejar.py b/Lib/test/test_http_cookiejar.py
@@ -257,7 +257,7 @@ def test_bad_magic(self):
                                 "filename should not exist")
             except IOError as exc:
                 # exactly IOError, not LoadError
-                self.assertEqual(exc.__class__, IOError)
+                self.assertIs(exc.__class__, IOError)
             else:
                 self.fail("expected IOError for invalid filename")
         # Invalid contents of cookies file (eg. bad magic string)
