def METHOD_NAME(self):
    group = AudioFileGroup(
        [GroupSong(can_change=True), GroupSong(can_change=True)])
    self.assertTrue(group.can_change() is True)
    self.assertTrue(group.can_change("foo") is True)
    group = AudioFileGroup(
        [GroupSong(can_change=["foo", "ha"]),
         GroupSong(can_change=["ha"])])
    self.assertEqual(group.can_change(), {"ha"})
    self.assertFalse(group.can_change("foo"))
    self.assertTrue(group.can_change("ha"))
    group = AudioFileGroup([GroupSong(), GroupSong(cant_change=["baz"])])
    self.assertTrue(group.can_change())
    self.assertFalse(group.can_change("baz"))