QA to be automated: MDLQA-1166

Testing instructions

This test requires a quiz containing several questions.

1. Login as a teacher, edit the settings for the quiz and set how questions behave to 'Immediate feedback with CBM'.
2. Login as a student and attempt the quiz.
3. Try clicking the check button without answering the question 'How certain are you?' and check that you are prompted to enter a certainty.
4. Answer some questions correctly and some wrongly and try each of the 'How certain are you?' options.
5. Check that the adjusted scores make sense.
6. Login as the teacher again and preview the quiz.
7. Check that everything appears the same as for the student.