def test_edit_replacec_apple_with_a_longer_word(self):
w = Write()
w.write_on_paper(
desired_text_to_write="An apple a day keeps the doctor away")
index = w.erase('apple')
w.edit(index, 'artichoke')
self.assertEqual(w.paper, "An artich@k@ay keeps the doctor away")
def test_edit_replacec_apple_with_onion(self):
w = Write()
w.write_on_paper(
desired_text_to_write="An apple a day keeps the doctor away")
index = w.erase('apple')
w.edit(index, 'onion')
self.assertEqual(w.paper, "An onion a day keeps the doctor away")