PASS canonical correct option ID
PASS scientific signs and decimal points retained
PASS duplicate options rejected
PASS out-of-range answer rejected
PASS missing option reasoning rejected
PASS citation retains real page and line
PASS explicit printed-page mapping retained separately
PASS fabricated quotation rejected
PASS nonexistent source page rejected
PASS first question saved
PASS repeated stem rejected
PASS punctuation-only duplicate rejected
PASS shuffle preserves all unique values
PASS active exam does not leak answers or source
PASS correct wrong and unanswered scored distinctly
PASS submission is idempotent
PASS first PYQ occurrence
PASS same question in a different exam retained
PASS same exam question number duplicate blocked
PASS unsafe source URL rejected
PASS quota enforced
TOTAL 21 checks passed