From 4b8b369160ef05650ba29f5610359c0fe1850dc2 Mon Sep 17 00:00:00 2001 From: Nikita Sobolev Date: Tue, 18 Jan 2022 17:43:51 +0300 Subject: [PATCH] bpo-46424: [typing] cover `Annotation[arg]` invalid usage in tests (GH-30663) (cherry picked from commit 32398294fb3fcf4ee74da54722fd0221c4e6cb74) Co-authored-by: Nikita Sobolev --- Lib/test/test_typing.py | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/Lib/test/test_typing.py b/Lib/test/test_typing.py index f943aed73614cd..b886c38827f1ff 100644 --- a/Lib/test/test_typing.py +++ b/Lib/test/test_typing.py @@ -4512,6 +4512,10 @@ def test_cannot_check_subclass(self): with self.assertRaises(TypeError): issubclass(int, Annotated[int, "positive"]) + def test_too_few_type_args(self): + with self.assertRaisesRegex(TypeError, 'at least two arguments'): + Annotated[int] + def test_pickle(self): samples = [typing.Any, typing.Union[int, str], typing.Optional[str], Tuple[int, ...],