Update test_tuple.py from 3.13.5 (#5966)

ShaharNaveh · web-flow · commit 36f4d30e0155 · 2025-07-14T14:26:08.000+09:00
diff --git a/Lib/test/test_tuple.py b/Lib/test/test_tuple.py
@@ -42,6 +42,35 @@ def test_keyword_args(self):
         with self.assertRaisesRegex(TypeError, 'keyword argument'):
             tuple(sequence=())
 
+    # TODO: RUSTPYTHON
+    @unittest.expectedFailure
+    def test_keywords_in_subclass(self):
+        class subclass(tuple):
+            pass
+        u = subclass([1, 2])
+        self.assertIs(type(u), subclass)
+        self.assertEqual(list(u), [1, 2])
+        with self.assertRaises(TypeError):
+            subclass(sequence=())
+
+        class subclass_with_init(tuple):
+            def __init__(self, arg, newarg=None):
+                self.newarg = newarg
+        u = subclass_with_init([1, 2], newarg=3)
+        self.assertIs(type(u), subclass_with_init)
+        self.assertEqual(list(u), [1, 2])
+        self.assertEqual(u.newarg, 3)
+
+        class subclass_with_new(tuple):
+            def __new__(cls, arg, newarg=None):
+                self = super().__new__(cls, arg)
+                self.newarg = newarg
+                return self
+        u = subclass_with_new([1, 2], newarg=3)
+        self.assertIs(type(u), subclass_with_new)
+        self.assertEqual(list(u), [1, 2])
+        self.assertEqual(u.newarg, 3)
+
     def test_truth(self):
         super().test_truth()
         self.assertTrue(not ())
