gh-64631: Test exception messages in cloned Argument Clinic funcs (#104167)

1 files changed, 13 insertions, 0 deletions

diff --git a/Lib/test/test_clinic.py b/Lib/test/test_clinic.py
index 4abf739..660f7a1 100644
--- a/Lib/test/test_clinic.py
+++ b/Lib/test/test_clinic.py
@@ -1284,6 +1284,19 @@ class ClinicFunctionalTest(unittest.TestCase):
         with self.assertRaisesRegex(TypeError, expected_error):
             ac_tester.gh_99240_double_free('a', '\0b')
 
+    def test_cloned_func_exception_message(self):
+        incorrect_arg = -1  # f1() and f2() accept a single str
+        with self.assertRaisesRegex(TypeError, "clone_f1"):
+            ac_tester.clone_f1(incorrect_arg)
+        with self.assertRaisesRegex(TypeError, "clone_f2"):
+            ac_tester.clone_f2(incorrect_arg)
+
+    def test_cloned_func_with_converter_exception_message(self):
+        for name in "clone_with_conv_f1", "clone_with_conv_f2":
+            with self.subTest(name=name):
+                func = getattr(ac_tester, name)
+                self.assertEqual(func(), name)
+
 
 if __name__ == "__main__":
     unittest.main()