code: def tearDown(self):
      self.assertRaises(IOError, get_uri, self.source)
  
imports: from __future__ import division
  import unittest
  from unit_timeside import TestRunner
  from timeside.plugins.decoder.utils import get_uri, get_media_uri_info, path2uri
  from timeside.core.tools.test_samples import samples
  import os.path
label_desc: Use image node_id 4 for calling the TestGetUriWrongUri obj's underlying member method code with example usage: obj.tearDown() without return types