code: def test_text(self):
      test_field = CnTextField(sents[0])
      self.assertEqual(sents[0], test_field.text)
  
imports: import unittest
  from textflint.input.component.field.cn_text_field import *
label_desc: Use image node_id 3 for calling the TestCnTextField obj's underlying member method code with example usage: obj.test_text() without return types