code: def tearDownClass(cls):
      del cls.text
      cls.root.destroy()
      del cls.root
  
imports: from idlelib.percolator import Percolator, Delegator
  import unittest
  from test.support import requires
  from tkinter import Text, Tk, END
label_desc: Use image node_id 2 for calling the PercolatorTest obj's underlying member method code with example usage: obj.tearDownClass(cls) without return types