code: def test_setcookedpat(self):
      engine = self.engine
      engine.setcookedpat("\s")
      self.assertEqual(engine.getpat(), "\s")
      engine.revar.set(1)
      engine.setcookedpat("\s")
      self.assertEqual(engine.getpat(), r"\\s")
  
imports: import re
  import unittest
  from Tkinter import BooleanVar, StringVar, TclError
  import tkMessageBox
  from idlelib import SearchEngine
  from idlelib.idle_test.mock_tk import Var, Mbox
  from idlelib.idle_test.mock_tk import Text
label_desc: Use image node_id 3 for calling the SearchEngineTest obj's underlying member method code with example usage: obj.test_setcookedpat() without return types