new_contents: # This file is part of beets.
  # Copyright 2014, Fabrice Laporte.
  #
  # Permission is hereby granted, free of charge, to any person obtaining
  # a copy of this software and associated documentation files (the
  # "Software"), to deal in the Software without restriction, including
  # without limitation the rights to use, copy, modify, merge, publish,
  # distribute, sublicense, and/or sell copies of the Software, and to
  # permit persons to whom the Software is furnished to do so, subject to
  # the following conditions:
  #
  # The above copyright notice and this permission notice shall be
  # included in all copies or substantial portions of the Software.
  
  """Tests for the 'lastgenre' plugin."""
  
  from _common import unittest
  from beetsplug import lastgenre
  from beets import config
  
  class LastGenrePluginTest(unittest.TestCase):
      def setUp(self):
          """Set up configuration"""
          lyrics.LastGenrePlugin()
  
      def _setup_config(self, whitelist=set(), branches=None, count=1):
          config['lastgenre']['whitelist'] = whitelist
          if branches:
              config['lastgenre']['branches'] = branches
              config['lastgenre']['c14n'] = True
          else:
              config['lastgenre']['c14n'] = False
          config['lastgenre']['count'] = count
  
      def test_c14n():
          _setup_config(set('blues'),
                        [['blues'],
                         ['blues', 'country blues'],
                         ['blues', 'country blues', 'delta blues']])
  
          self.assertEqual(lastgenre._strings_to_genre(['delta blues']),
                           'blues')
  
  
  
subject: add test_lastgenre.py