commit c73914a562580ae72048876cb42ed8e76e2c83f9
author Rémi Lapeyre <remi.lapeyre@lenstra.fr> Sun May 24 23:12:57 2020 +0200
committer GitHub <noreply@github.com> Sun May 24 22:12:57 2020 +0100
tree c2530e91a3790121ef7d4a4650a0bdc7c91f1eeb
parent 59f5022b5d3e5fcc60ac61cc256b627decf8ee68

bpo-36290: Fix keytword collision handling in AST node constructors (GH-12382)

Lib/test/test_ast.py

diff --git a/Lib/test/test_ast.py b/Lib/test/test_ast.py
index e55d10b..3e9c8b5 100644
--- a/Lib/test/test_ast.py
+++ b/Lib/test/test_ast.py
@@ -402,6 +402,15 @@
         self.assertRaises(TypeError, ast.Num, 1, None, 2)
         self.assertRaises(TypeError, ast.Num, 1, None, 2, lineno=0)
 
+        # Arbitrary keyword arguments are supported
+        self.assertEqual(ast.Constant(1, foo='bar').foo, 'bar')
+        self.assertEqual(ast.Num(1, foo='bar').foo, 'bar')
+
+        with self.assertRaisesRegex(TypeError, "Num got multiple values for argument 'n'"):
+            ast.Num(1, n=2)
+        with self.assertRaisesRegex(TypeError, "Constant got multiple values for argument 'value'"):
+            ast.Constant(1, value=2)
+
         self.assertEqual(ast.Num(42).n, 42)
         self.assertEqual(ast.Num(4.25).n, 4.25)
         self.assertEqual(ast.Num(4.25j).n, 4.25j)