Add test for __members__ (#1216)

Adding a new test which ensures the local __members__ defined on an enum class isn't used for __members__ afterwards. This matches the behavior of Python.

1 files changed, 15 insertions, 0 deletions

diff --git a/tests/unittest_brain.py b/tests/unittest_brain.py
index 9e8b4126..861369f3 100644
--- a/tests/unittest_brain.py
+++ b/tests/unittest_brain.py
@@ -1172,6 +1172,21 @@ class EnumBrainTest(unittest.TestCase):
         self.assertIsInstance(inferred[0], astroid.Const)
         self.assertEqual(inferred[0].value, 1)
 
+    def test_members_member_ignored(self) -> None:
+        ast_node = builder.extract_node(
+            """
+        from enum import Enum
+        class Animal(Enum):
+            a = 1
+            __members__ = {}
+        Animal.__members__ #@
+        """
+        )
+
+        inferred = next(ast_node.infer())
+        self.assertIsInstance(inferred, astroid.Dict)
+        self.assertTrue(inferred.locals)
+
 
 @unittest.skipUnless(HAS_DATEUTIL, "This test requires the dateutil library.")
 class DateutilBrainTest(unittest.TestCase):