This test requires a forum in which several students have posted and in which forum posts have been rated several times.

1. Log in as a teacher and set the forum aggregation type to Average.
2. Check that the final grade for each post in the forum and for the whole forum activity is the mean of all the ratings given.
3. Set the forum aggregation type to Count.
4. Check that the final grade for each post in the forum and for the whole forum activity is the number of ratings given (limited to the maximum grade for the forum).
5. Set the forum aggregation type to Max.
6. Check that the final grade for each post in the forum and for the whole forum activity is the highest rating given.
7. Set the forum aggregation type to Min.
8. Check that the final grade for each post in the forum and for the whole forum activity is the lowest rating given.
9. As a teacher, rate the student's post, assigning it a score of zero.
10. Refresh the page and confirm that display is 'Minimum rating: 0 (1)'
11. Set the forum aggregation type to Sum.
12. Check that the final grade for each post in the forum and for the whole forum activity is the sum of all the ratings given (limited to the maximum grade for the forum).