code: def test_long_name(self):
      self.dialog.name.set("good" * 8)
      self.assertEqual(self.dialog.name_ok(), "")
      self.assertEqual(showerror.title, "Name Error")
      self.assertIn("too long", showerror.message)
  
file_path: catboost/contrib/tools/python/src/Lib/idlelib/idle_test/test_config_name.py
imports: import unittest
  from idlelib.idle_test.mock_tk import Var, Mbox
  from idlelib import configSectionNameDialog
label_desc: Use image node_id 5 for calling the ConfigNameTest obj's underlying member method code with example usage: obj.test_long_name() without return types