code: def test_script(self):
      tf = tempfile.NamedTemporaryFile(delete=False)
      tf.close()
      cdpf.ConvertDataToParlaiFormat.main(
          task="integration_tests", outfile=tf.name
      )
      with open(tf.name) as f:
          lines = [l.strip() for l in f]
          lines = [l for l in lines if l]
          assert len(lines) == 500
  
file_path: ParlAI/tests/test_miscscripts.py
imports: import unittest
  import tempfile
  import parlai.scripts.convert_data_to_parlai_format
  import parlai.scripts.data_stats
label_desc: Use image node_id 1 for calling the TestConvertToParlai obj's underlying member method code with example usage: obj.test_script() without return types