code: def test_errors(self):
      # file not found
      with self.assertRaises(IOError):
          load_audio_file(pj(AUDIO_PATH, "sample.flac"))
      # not an audio file
      with self.assertRaises(LoadAudioFileError):
          load_audio_file(pj(DATA_PATH, "README"))
  
imports: from __future__ import absolute_import, division, print_function
  import io
  import unittest
  from os.path import join
  from madmom.io.audio import *
  from .None import AUDIO_PATH, DATA_PATH
label_desc: Use image node_id 14 for calling the TestLoadAudioFileFunction obj's underlying member method code with example usage: obj.test_errors() without return types