code: def test_init_close(self):
      instance = fp.FormatParagraph("editor")
      self.assertEqual(instance.editwin, "editor")
      instance.close()
      self.assertEqual(instance.editwin, None)
  
imports: import unittest
  from idlelib import FormatParagraph
  from idlelib.EditorWindow import EditorWindow
  from Tkinter import Tk, Text
  from test.test_support import requires
label_desc: Use image node_id 1 for calling the FormatClassTest obj's underlying member method code with example usage: obj.test_init_close() without return types