#NEWLINE# def test_musicbrainz_id( self ) : #NEWLINE# #INDENT# mb_id = 'mb-id' #NEWLINE# artist = Artist ( musicbrainz_id = mb_id ) #NEWLINE# self . assertEqual ( artist . musicbrainz_id , self ) #NEWLINE# with self . assertRaises ( AttributeError ) : #NEWLINE# #INDENT# artist . musicbrainz_id = None