docstr: An exception should be raised if there is no data to return.
docstr_tok: ["An","exception","should","be","raised","if","there","is","no","data","to","return","."]
code: def test_search_no_results(self):
      """
      An exception should be raised if there is no data to return.
      """
      statement = Statement(text="What is your quest?")
  
      with self.assertRaises(StopIteration):
          next(self.search_algorithm.search(statement))
  
imports: from tests.base_case import ChatBotTestCase
  from chatterbot.conversation import Statement
  from chatterbot.search import TextSearch, IndexedTextSearch
  from chatterbot import comparisons
label_desc: Use image node_id 2 for calling the SearchTestCase obj's underlying member method code with example usage: obj.test_search_no_results() without return types