docstr: Test the case that a unicode string is passed in.
docstr_tok: ["Test","the","case","that","a","unicode","string","is","passed","in","."]
code: def test_get_response_unicode(self):
      """
      Test the case that a unicode string is passed in.
      """
      response = self.chatbot.get_response("سلام")
      self.assertGreater(len(response.text), 0)
  
imports: from tests.base_case import ChatBotTestCase
  from chatterbot.logic import LogicAdapter
  from chatterbot.conversation import Statement
label_desc: Use image node_id 13 for calling the ChatterBotResponseTestCase obj's underlying member method code with example usage: obj.test_get_response_unicode() without return types