Gap analysis — c0 in decision #434

scry-mcdc · lib.rs:356 · branch 2942

Status: GAP

What you need

To prove condition c0 independently affects the decision, you need a row where c0 = F and the outcome differs from row 17830 (where c0 = T).

Required condition vector:

  c0 = F
  c1 = F

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_d434_c0() {
    // Verdict: scry-mcdc
    // Source: lib.rs:356
    // Branch:  2942
    //
    // TODO: drive the function so condition c0 evaluates to the
    // value above and the resulting decision outcome differs from
    // the existing pair row.
    todo!("witness viz: gap drill-down for d#434/c0");
}

After adding the test, re-run: witness instrument && witness run --invoke run_row_NEW && witness report. The condition should flip from gap to proved.