class_docstr: Test decoding features
class_docstr_tok: ["Test","decoding","features"]
docstr: Test decoding missing file
docstr_tok: ["Test","decoding","missing","file"]
code: def testMissingFile(self):
      "Test decoding missing file"
      self.source = os.path.join(
          os.path.dirname(__file__), "a_missing_file.wav"
      )
      self.assertRaises(IOError, FileDecoder, self.source)
  
imports: import os.path
  import unittest
  from unit_timeside import TestRunner
  from test_decoding import TestDecoding, samples
  from timeside.core.processor import ProcessPipe
  from timeside.plugins.decoder.aubio import AubioDecoder
label_desc: Use image node_id 1 for calling the TestDecodingWrongFiles obj's underlying member method code with example usage: obj.testMissingFile() without return types