Issue #23883: Add missing APIs to __all__; patch by Jacek Kołodziej

Lib/test/test_enum.py

@@ -6,6 +6,7 @@ from collections import OrderedDict
 from enum import Enum, IntEnum, EnumMeta, unique
 from io import StringIO
 from pickle import dumps, loads, PicklingError, HIGHEST_PROTOCOL
+from test import support
 
 # for pickle tests
 try:
@@ -1708,5 +1709,11 @@ class TestStdLib(unittest.TestCase):
         if failed:
             self.fail("result does not equal expected, see print above")
 
+
+class MiscTestCase(unittest.TestCase):
+    def test__all__(self):
+        support.check__all__(self, enum)
+
+
 if __name__ == '__main__':
     unittest.main()