code: def test_tokenize_one_sent(self):
      self.assertRaises(
          AssertionError, self.test_processor.tokenize_one_sent, sents
      )
      self.assertEqual(
          sents[0].split(" "),
          self.test_processor.tokenize_one_sent(
              sents[0], split_by_space=True
          ),
      )
      self.assertEqual(
          [
              "we",
              "'re",
              "playing",
              "ping",
              "pang",
              "ball",
              ",",
              "you",
              "are",
              "so",
              "lazy",
              ".",
              "She",
              "'s",
              "so",
              "beautiful",
              "!",
          ],
          self.test_processor.tokenize_one_sent(sents[0]),
      )
  
file_path: textflint/test/common/preprocess/test_en_processor.py
imports: import unittest
  from textflint.common.preprocess.en_processor import EnProcessor
label_desc: Use image node_id 2 for calling the TestEnProcessor obj's underlying member method code with example usage: obj.test_tokenize_one_sent() without return types