Gap analysis — c1 in decision #635

scry-mcdc · library/core/src/result.rs:966 · branch 4717

Status: GAP

What you need

To prove condition c1 independently affects the decision, you need a row where c1 = F and the outcome differs from row 84579 (where c1 = 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_d635_c1() {
    // Verdict: scry-mcdc
    // Source: library/core/src/result.rs:966
    // Branch:  4717
    //
    // TODO: drive the function so condition c1 evaluates to the
    // value above and the resulting decision outcome differs from
    // the existing pair row.
    todo!("witness viz: gap drill-down for d#635/c1");
}

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