Tests 1a edit
Fully complete checklist, all criteria passing -> autopromote from C to B
Tests 1b edit
Fully complete checklist, all criteria passing -> B grade upheld
Tests 2a edit
Incomplete or partially complete checklist -> C-class upheld
Tests 2b edit
Incomplete or partially complete checklist, grade B entered -> defer to input grade
Tests 2c edit
Incomplete or partially complete checklist, some criteria marked failed -> autodemote from B to C
Tests 3a edit
Fully complete checklist, not all criteria passing -> C class upheld
Tests 3b edit
Fully complete checklist, not all criteria passing -> autodemote from B to C class
Tests 4 edit
Other grade entered -> ignore checklist and give input grade
Test 5 edit
Invalid input -> treat as unchecked and defer to input
Test 6 edit
One criterion is marked not applicable. Treat it as passed and output B-class.
Test 7 edit
Checklist not in use, use input grade.