code: def test_get_text(self):
      self.assertEqual("今天天气很好。", sample.get_text("x"))
      new_sample = UTCnSample({"x": ""})
      self.assertEqual("", new_sample.get_text("x"))
  
imports: import unittest
  from textflint.input.component.sample.utcn_sample import *
label_desc: Use image node_id 3 for calling the TestUTCnSample obj's underlying member method code with example usage: obj.test_get_text() without return types