FA-94818 / Exam timetabling constraints / Member archive

Missing-exam list reports unknown exams instead · case 03

Dropped exams are not reported while stray exams are.

Member previewVariant 3 · 3 implementations · 8 checks per implementation

Case contract

exams = required exam ids; assign [exam, room, period]. Return missing (required but unassigned), unknown (assigned but not required) and conflict (assigned to more than one distinct period; a split across rooms in one period is fine), each sorted.

Why this case matters

Completeness checks catch exams dropped or duplicated when merging timetable drafts.

One recorded failure

Sample boundary fixture

This sample comes from the broken implementation of a controlled reproducer.

Boundary fixture	Actual	Expected	Outcome
regression: missing direction 1	`{"conflict": ["CHEM120"], "missing": ["BIO130", "CHEM120"], "unknown": ["BIO130", "CHEM120"]}`	`{"conflict": ["CHEM120"], "missing": ["ECON150", "MATH101"], "unknown": ["BIO130", "CHEM120"]}`	Failed

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