1 files changed, 7 insertions, 0 deletions
diff --git a/Lib/test/test_code.py b/Lib/test/test_code.py
index 0cd1fb3..7543c9a 100644
--- a/Lib/test/test_code.py
+++ b/Lib/test/test_code.py
@@ -338,6 +338,13 @@ class CodeTest(unittest.TestCase):
         new_code = code = func.__code__.replace(co_linetable=b'')
         self.assertEqual(list(new_code.co_lines()), [])
 
+    def test_co_lnotab_is_deprecated(self):  # TODO: remove in 3.14
+        def func():
+            pass
+
+        with self.assertWarns(DeprecationWarning):
+            func.__code__.co_lnotab
+
     def test_invalid_bytecode(self):
         def foo():
             pass