I think the Behat coverage is pretty good, but probably worth having some human eyeballs other than mine checking it all out. Set up Edit the (editing) teacher role (either at system-level, or in the course you will use) to remove the moodle/site:viewuseridentity capability. Check the setting Admin -> Users -> Permissions -> User policies -> Show user identity setting. Make sure that at least one option is selected there. Verify that some students are enrolled in the course. Create a quiz. Testing as admin (can see user identity) Log in as admin. Create a quiz. Choose Settings -> User overrides. Add a new overrides. Verify that when you select which user you want, all the user identity information for that user is shown in brackets after the name. Save the override. Verify that, back on the list of overrides, the table has a column for each identity field afer the name. Delete the override you created. Verify that the 'Are you sure' message includes all the user identity information for that user is shown in brackets after the name. Testing as teacher (cannot see user identity) Log in as admin. Create a quiz. Choose Settings -> User overrides. Add a new overrides. Verify that when you select which user you want, you can only see the student names. Save the override. Verify that, back on the list of overrides, the table only has a name column to identify the students. Delete the override you created. Verify that the 'Are you sure' message only includes the student's name.