1. Login as a teacher and create a forum with 'Read tracking for this forum' set to Optional.
2. Login as a student and check you can choose whether to turn tracking on or off.
3. Login as a teacher and create a forum with 'Read tracking for this forum' set to Off.
4. Login as a student and check that read forum posts are not tracked and that you have no option to enable the feature.
5. Login as a teacher and create a forum with 'Read tracking for this forum' set to On.
6. Login as a student and check that read forum posts are tracked and that you have no option to disable the feature.