class_docstr: Tests History.__init__ and History.store with mock Text
class_docstr_tok: ["Tests","History.__init__","and","History.store","with","mock","Text"]
code: def test_init(self):
      self.assertIs(self.history.text, self.text)
      self.assertEqual(self.history.history, [])
      self.assertIsNone(self.history.prefix)
      self.assertIsNone(self.history.pointer)
      self.assertEqual(
          self.history.cyclic,
          idleConf.GetOption("main", "History", "cyclic", 1, "bool"),
      )
  
imports: from idlelib.history import History
  import unittest
  from test.support import requires
  import tkinter
  from tkinter import Text
  from idlelib.idle_test.mock_tk import Text
  from idlelib.config import idleConf
label_desc: Use image node_id 3 for calling the StoreTest obj's underlying member method code with example usage: obj.test_init() without return types