QA test to be automated: MDLQA-1776

Testing instructions

Test Pre-requisites:

• an assignment created with a marking guide

Test Steps:

1. Log in as a teacher then open the assignment that has a marking guide
2. Click the Advanced grading link then click 'Delete the currently defined form'
3. Check that you get a warning and select Cancel
4. Check that the marking guide was as it was before
5. Click 'Delete the currently defined form'
6. Click Continue
7. Check that the marking guide was deleted