From bd0ff2a794bdca4ce043a6b9702cee60e7200550 Mon Sep 17 00:00:00 2001
From: sobolevn <mail@sobolevn.me>
Date: Tue, 11 Jan 2022 18:17:33 +0300
Subject: [PATCH] bpo-46345: add a test case for implicit `Optional` class
 attribute

---
 Lib/test/test_typing.py | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Lib/test/test_typing.py b/Lib/test/test_typing.py
index a94d77d4edf4be..9cb176eceacfab 100644
--- a/Lib/test/test_typing.py
+++ b/Lib/test/test_typing.py
@@ -3116,6 +3116,12 @@ def test_get_type_hints_classes(self):
                           'my_inner_a2': mod_generics_cache.B.A,
                           'my_outer_a': mod_generics_cache.A})
 
+    def test_get_type_hints_classes_no_implicit_optional(self):
+        class WithNoneDefault:
+            field: int = None  # most type-checkers won't be happy with it
+
+        self.assertEqual(gth(WithNoneDefault), {'field': int})
+
     def test_respect_no_type_check(self):
         @no_type_check
         class NoTpCheck: