Gap analysis — c6 in decision #643
scry-mcdc · parser.rs:822 · branch 4679
Status: GAP
What you need
To prove condition c6 independently affects the decision, you need a row where c6 = T and the outcome differs from row 1263 (where c6 = F).
Required condition vector:
c0 = T c1 = * c2 = F c3 = F c4 = F c5 = * c6 = T
Conditions marked * were short-circuited in the baseline row; the new test must drive inputs so they get evaluated to either T or F.
Suggested test stub
#[test]
fn closes_gap_d643_c6() {
// Verdict: scry-mcdc
// Source: parser.rs:822
// Branch: 4679
//
// TODO: drive the function so condition c6 evaluates to the
// value above and the resulting decision outcome differs from
// the existing pair row.
todo!("witness viz: gap drill-down for d#643/c6");
}
After adding the test, re-run: witness instrument && witness run --invoke run_row_NEW && witness report. The condition should flip from gap to proved.