Add regression test for pylint-dev#5982

jacobtylerwalls · Mar 26, 2022 · 2630b12 · 2630b12
1 parent 556304e
commit 2630b12
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Showing 3 changed files with 13 additions and 3 deletions.
diff --git a/ChangeLog b/ChangeLog
@@ -36,6 +36,9 @@ What's New in Pylint 2.13.2?
 ============================
 Release date: TBA
 
+* Fix crash when subclassing a ``namedtuple``.
+
+  Closes #5982
 
 
 What's New in Pylint 2.13.1?

diff --git a/tests/functional/u/used/used_before_assignment_type_annotations.py b/tests/functional/u/used/used_before_assignment_type_annotations.py
@@ -1,5 +1,6 @@
 """Tests for annotation of variables and potential use before assignment"""
 # pylint: disable=too-few-public-methods, global-variable-not-assigned
+from __future__ import annotations
 from collections import namedtuple
 from typing import List
 
@@ -88,3 +89,9 @@ def my_method(self) -> Coords:
             pass
 
     print(MyObject)
+
+
+class NamedTupleSubclass(namedtuple("NamedTupleSubclass", [])):
+    """Taken from https://github.com/PyCQA/pylint/issues/5982"""
+    def method(self) -> NamedTupleSubclass:
+        """Variables checker crashed when astroid did not supply a lineno"""
diff --git a/tests/functional/u/used/used_before_assignment_type_annotations.txt b/tests/functional/u/used/used_before_assignment_type_annotations.txt
@@ -1,3 +1,3 @@
-used-before-assignment:15:10:15:18:only_type_assignment:Using variable 'variable' before assignment:HIGH
-used-before-assignment:28:10:28:18:value_assignment_after_access:Using variable 'variable' before assignment:HIGH
-undefined-variable:62:14:62:17:decorator_returning_incorrect_function.wrapper_with_type_and_no_value:Undefined variable 'var':HIGH
+used-before-assignment:16:10:16:18:only_type_assignment:Using variable 'variable' before assignment:HIGH
+used-before-assignment:29:10:29:18:value_assignment_after_access:Using variable 'variable' before assignment:HIGH
+undefined-variable:63:14:63:17:decorator_returning_incorrect_function.wrapper_with_type_and_no_value:Undefined variable 'var':HIGH