code: def test_open_and_close(self):
      # open calls create_widgets, which needs default_command
      self.dialog.default_command = None
  
      # Since text parameter of .open is not used in base class,
      # pass dummy 'text' instead of tk.Text().
      self.dialog.open("text")
      self.assertEqual(self.dialog.top.state(), "normal")
      self.dialog.close()
      self.assertEqual(self.dialog.top.state(), "withdrawn")
  
      self.dialog.open("text", searchphrase="hello")
      self.assertEqual(self.dialog.ent.get(), "hello")
      self.dialog.close()
  
imports: import unittest
  from test.test_support import requires
  from Tkinter import Tk, Toplevel, Frame
  from idlelib import SearchEngine
  from idlelib import SearchDialogBase
  from idlelib.idle_test.mock_idle import Func
label_desc: Use image node_id 5 for calling the SearchDialogBaseTest obj's underlying member method code with example usage: obj.test_open_and_close() without return types