diff options
| -rw-r--r-- | Lib/test/test_typing.py | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/Lib/test/test_typing.py b/Lib/test/test_typing.py index 78e5892..6e2a2b1 100644 --- a/Lib/test/test_typing.py +++ b/Lib/test/test_typing.py @@ -2792,6 +2792,10 @@ class ForwardRefTests(BaseTestCase): with self.assertRaises(TypeError): issubclass(int, fr) + def test_forwardref_only_str_arg(self): + with self.assertRaises(TypeError): + typing.ForwardRef(1) # only `str` type is allowed + def test_forward_equality(self): fr = typing.ForwardRef('int') self.assertEqual(fr, typing.ForwardRef('int')) |