Test Pre-requisites:

Create Test Data

1. As an admin, create a new course
2. Navigate to Settings -> Course administration -> Users -> Enrolled users
3. Enrol a teacher in the course
4. Navigate to Settings -> Course administration -> Users -> Permissions
5. Remove 'Teacher' from the permission 'moodle/course:changeidnumber'
6. Navigate to Settings -> Course administration -> Users -> Groups
7. Create 4 new groups with those corresponding values:
   You will need to click on the 'Show advanced' button to set the Group ID number.

   Group name	Group ID number
   group-id-1	group-id-1
   group-id-2	group-id-2
   group-noid-1
   group-noid-2

8. Back on the groups page, click on the tab 'Groupings'
9. Create 4 new groupings

   Grouping name	Grouping ID number
   grouping-id-1	grouping-id-1
   grouping-id-2	grouping-id-2
   grouping-noid-1
   grouping-noid-2

Test steps:

1. As an admin, navigate to Settings -> Course administration -> Backup
2. Backup the course making sure you select 'User data' and set the filename to 'test_id_number.mbz'
3. Navigate to Settings -> Course administration -> Users -> Groups
4. Delete 'group-id-1' and 'group-noid-1'
5. Switch to 'Groupings' and delete 'grouping-id-1' and 'groupind-noid-1'
6. Log in as the teacher and navigate to Settings -> Course administration -> Restore
7. Select 'Restore' for 'test_id_number.mbz'. Click continue.
8. Restore using the button 'Continue' under 'Restore into this course' with 'Merge the backup course into this course' selected.
9. Confirm that 'group-id-1' and 'group-noid-1' have been created but none of them have an ID number
10. Confirm that 'grouping-id-1' and 'grouping-noid-1' have been created but none of them have an ID number