From: Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com>
Date: Wed, 26 Jan 2022 10:39:40 +0000 (-0800)
Subject: bpo-46529: increase coverage of `typing.Union.__repr__` method (GH-30911)
X-Git-Tag: v3.10.3~165
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=c730342005edf67333c37b575b419e2fc67d232b;p=thirdparty%2FPython%2Fcpython.git

bpo-46529: increase coverage of `typing.Union.__repr__` method (GH-30911)

(cherry picked from commit d0c690b5f85c679de6059cf353fe0524e905530e)

Co-authored-by: Nikita Sobolev <mail@sobolevn.me>
---

diff --git a/Lib/test/test_typing.py b/Lib/test/test_typing.py
index 9b552c422d56..d4068242da6d 100644
--- a/Lib/test/test_typing.py
+++ b/Lib/test/test_typing.py
@@ -318,6 +318,15 @@ class UnionTests(BaseTestCase):
         u = Union[int | float]
         self.assertEqual(repr(u), 'typing.Union[int, float]')
 
+        u = Union[None, str]
+        self.assertEqual(repr(u), 'typing.Optional[str]')
+        u = Union[str, None]
+        self.assertEqual(repr(u), 'typing.Optional[str]')
+        u = Union[None, str, int]
+        self.assertEqual(repr(u), 'typing.Union[NoneType, str, int]')
+        u = Optional[str]
+        self.assertEqual(repr(u), 'typing.Optional[str]')
+
     def test_cannot_subclass(self):
         with self.assertRaises(TypeError):
             class C(Union):