CLONE - A teacher can view and edit the grades for one particular student

This test requires a course containing students and some grade-able activities.

1. Log in as a teacher, go to the course and click on 'Grades' in the course administration.
2. For a particular student, click the pencil icon after their name to access single view.
3. Check that a table is displayed with headings "Grade item', 'Grade category', 'Range', 'Grade', 'Feedback', 'Override', 'Exclude'.
4. Try adding some grades and feedback and, with the exception of manual items, check that this is only possible if the override checkbox is ticked.
5. Click the 'Save' button and check that all grades and feedback added in the previous step are saved.
6. Click the 'All' link next to Override, so that all override checkboxes are ticked.
7. Underneath the table, click the checkbox next to bulk insert, and try bulk inserting 0 for empty grades.
8. Click the 'Save' button and check that all previously empty grades are now 0.