'Test non standard Discogs position.'

def test_parse_tracklist_non_standard(self):

    release = self._make_release_from_positions(['I', 'II', 'III', 'IV'])
    d = DiscogsPlugin().get_album_info(release)
    self.assertEqual(d.mediums, 1)
    self.assertEqual(len(d.tracks), 4)
