'test assertion error then not download the actual torrent'

def test_failed_start_download(self):

    torrent = {'preload': False, 'metainfo': MockMeta('1234')}
    self.session.lm.download_exists = (lambda _: True)
    self.boosting_manager.start_download(torrent)
    self.assertNotIn('download', torrent, ('%s    downloading    despite    error' % torrent))
