class_docstr: Make sure that ChatterBot's whitespace removing preprocessor works as expected.
class_docstr_tok: ["Make","sure","that","ChatterBot","'s","whitespace","removing","preprocessor","works","as","expected","."]
code: def test_clean_whitespace(self):
      statement = Statement(
          text="\tThe quick \nbrown fox \rjumps over \vthe \alazy \fdog\\."
      )
      cleaned = preprocessors.clean_whitespace(statement)
      normal_text = (
          "The quick brown fox jumps over \vthe \alazy \fdog\\."
      )
  
      self.assertEqual(cleaned.text, normal_text)
  
file_path: ChatterBot/tests/test_preprocessors.py
imports: from tests.base_case import ChatBotTestCase
  from chatterbot.conversation import Statement
  from chatterbot import preprocessors
label_desc: Use image node_id 1 for calling the CleanWhitespacePreprocessorTestCase obj's underlying member method code with example usage: obj.test_clean_whitespace() without return types