// tests/fix-round-4-5b2-b-mutations.mjs
// The mutations of fix round 4.5b2, part B (plan
// .claude/projects/2026-10-31-review-gate-4-5b2, Step 16; decisions 129 and
// 132), for the shared red script (tests/helpers/red-round.sh, through
// tests/helpers/red-mutate.mjs).
// Every other id of the round is new behaviour whose tests fail on an
// assertion at the round's start point 96fba75, and kept behaviour is an
// untagged keep: test or a Control: assertion inside a red tagged test.
// An id named here has tests that pass at 96fba75 and is proven red under its
// mutation instead:
//   - FXS: the main-merge-declined reason list is in
//     tests/fixtures/jsonl-schemas.md, under the working tree's tests/ that
//     the script copies into the clone, so it already holds
//     review-unanswered there; the mutation takes review-unanswered out of
//     the fixture's list again.
// Every span must match exactly once in the clone (96fba75's code with the
// working tree's tests/). Data only; never matched by `npm test`.

export const MUTATIONS = [
  {
    key: 'FXS-fixture',
    id: 'FXS',
    what: "the fixture's main-merge-declined reasons lose review-unanswered",
    spans: [
      {
        file: 'tests/fixtures/jsonl-schemas.md',
        find: '`review-stale`, `review-unanswered`, `review-not-measured`',
        replace: '`review-stale`, `review-not-measured`',
      },
    ],
  },
];