From cb2014f2077c92c35486bf0db7e646a68478a7a5 Mon Sep 17 00:00:00 2001
From: Ethan Furman <ethan@stoneleaf.us>
Date: Tue, 15 Jun 2021 11:38:15 -0700
Subject: [PATCH] [Enum] improve test, add andrei kulakov to ACKS (GH-26726)

---
 Lib/test/test_enum.py | 23 +++++++++++++++++++++++
 Misc/ACKS             |  1 +
 2 files changed, 24 insertions(+)

diff --git a/Lib/test/test_enum.py b/Lib/test/test_enum.py
index 956b8347b1e..4626c2435c1 100644
--- a/Lib/test/test_enum.py
+++ b/Lib/test/test_enum.py
@@ -660,12 +660,35 @@ class TestEnum(unittest.TestCase):
         self.assertEqual(repr(MyEnum.A), '<MyEnum.A: 0x1>')
         #
         class SillyInt(HexInt):
+            __qualname__ = 'SillyInt'
             pass
         class MyOtherEnum(SillyInt, enum.Enum):
+            __qualname__ = 'MyOtherEnum'
             D = 4
             E = 5
             F = 6
         self.assertIs(MyOtherEnum._member_type_, SillyInt)
+        globals()['SillyInt'] = SillyInt
+        globals()['MyOtherEnum'] = MyOtherEnum
+        test_pickle_dump_load(self.assertIs, MyOtherEnum.E)
+        test_pickle_dump_load(self.assertIs, MyOtherEnum)
+        #
+        # This did not work in 3.9, but does now with pickling by name
+        class UnBrokenInt(int):
+            __qualname__ = 'UnBrokenInt'
+            def __new__(cls, value):
+                return int.__new__(cls, value)
+        class MyUnBrokenEnum(UnBrokenInt, Enum):
+            __qualname__ = 'MyUnBrokenEnum'
+            G = 7
+            H = 8
+            I = 9
+        self.assertIs(MyUnBrokenEnum._member_type_, UnBrokenInt)
+        self.assertIs(MyUnBrokenEnum(7), MyUnBrokenEnum.G)
+        globals()['UnBrokenInt'] = UnBrokenInt
+        globals()['MyUnBrokenEnum'] = MyUnBrokenEnum
+        test_pickle_dump_load(self.assertIs, MyUnBrokenEnum.I)
+        test_pickle_dump_load(self.assertIs, MyUnBrokenEnum)
 
     def test_too_many_data_types(self):
         with self.assertRaisesRegex(TypeError, 'too many data types'):
diff --git a/Misc/ACKS b/Misc/ACKS
index e8c99257ec6..87de95b938c 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -970,6 +970,7 @@ Andrew Kuchling
 Jakub Kuczys
 Dave Kuhlman
 Jon Kuhn
+Andrei Kulakov
 Ilya Kulakov
 Upendra Kumar
 Toshio Kuratomi