docstr: Test the case that a non-whitespace C1 control string is passed in.
docstr_tok: ["Test","the","case","that","a","non-whitespace","C1","control","string","is","passed","in","."]
code: def test_get_response_non_whitespace(self):
      """
      Test the case that a non-whitespace C1 control string is passed in.
      """
      response = self.chatbot.get_response("")
      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 15 for calling the ChatterBotResponseTestCase obj's underlying member method code with example usage: obj.test_get_response_non_whitespace() without return types