// tests/fix-round-4-5b2-a-mutations.mjs
// The mutations of fix round 4.5b2, part A (plan
// .claude/projects/2026-10-31-guard-4-5b2-part-a, Step 5, 5a; decisions 91,
// 107 and 123), for the shared red script (tests/helpers/red-round.sh,
// through tests/helpers/red-mutate.mjs).
// An id named here has tests that pass at the round's start point e2d6bec and
// is proven red under its mutations instead:
//   - RXT: the try already holds the regex reading's escape limit at e2d6bec
//     (the round adds only its test, which forces an error there through a
//     preload); the mutation opens the try after the regex reading, in
//     e2d6bec's hook, so that error escapes it.
//   - CNT: the first-<< search already takes a line continuation between the
//     two < at e2d6bec; the mutation drops that branch, in e2d6bec's hook.
//   - HDR: the false-stops header is corrected in the working tree's tests/
//     that the script copies into the clone; the mutation puts the wrong red
//     base back.
// Every span must match exactly once in the clone (e2d6bec's code with the
// working tree's tests/). Data only; never matched by `npm test`.

export const MUTATIONS = [
  {
    key: 'RXT-try',
    id: 'RXT',
    what: 'the try opens after the regex reading',
    spans: [
      {
        file: 'hooks/scripts/pre-bash-executor.mjs',
        find: '  let argsVerdict = null;\n  try {\n',
        replace: '  let argsVerdict = null;\n',
      },
      {
        file: 'hooks/scripts/pre-bash-executor.mjs',
        find: '    let bodyFrom = Infinity;\n',
        replace: '  try {\n    let bodyFrom = Infinity;\n',
      },
    ],
  },
  {
    key: 'CNT-regex',
    id: 'CNT',
    what: 'the first-<< search loses its continuation branch',
    spans: [
      {
        file: 'hooks/scripts/pre-bash-executor.mjs',
        find: 'const h = /<(?:\\\\\\n)*</.exec(text);',
        replace: 'const h = /<</.exec(text);',
      },
    ],
  },
  {
    key: 'HDR-header',
    id: 'HDR',
    what: 'the false-stops header names the wrong red base again',
    spans: [
      {
        file: 'tests/hooks/bash-guard-false-stops.test.mjs',
        find: 'loads at 591f3c4',
        replace: 'loads at 12bca8b',
      },
    ],
  },
];