Files
msd-core/tests/fixtures/adversarial/roadmap/phase-heading-inside-fenced-code.md
Tom Boucher b1317633db test(3594): adversarial parser fixtures + frontmatter/roadmap matrix + property-style suite (#3633)
* test(3594): adversarial parser fixtures + frontmatter/roadmap matrix + property-style suite

Lands the adversarial parser-input corpus that CONTRIBUTING.md
§"QA Matrix Requirements / Parser and project-file inputs" and
TEST-EXAMPLES.md §"Parser Adversarial Fixtures" describe.

New tests/fixtures/adversarial/ layout:

  frontmatter/
    duplicate-keys.md            — same key twice (collapses last-wins)
    crlf-mixed.md                — CRLF endings throughout
    unclosed-block.md            — `---` open with no close
    unicode-keys-and-values.md   — non-ASCII + emoji + Greek
    null-byte-value.md           — U+0000 in a value
    huge-bounded.md              — 2000-item array, ~30KB

  roadmap/
    phase-heading-inside-fenced-code.md   — #2787 fence shadowing
    nested-fenced-code.md                 — outer + inner ``` blocks
    unicode-phase-titles.md               — JP / Greek / emoji titles
    repeated-phase-ids.md                 — phase 1 declared twice
    decimal-phase-mixed.md                — 2 vs 2.1 vs 2.10 vs 21
    markdown-headings-inside-html-comment.md — comment shadowing

Test files (all node:test, no try/finally in test bodies, no source-grep,
no raw-text matching on stdout/file content):

  tests/feat-3594-parser-adversarial-frontmatter.test.cjs (12 tests)
    Loads each fixture, pins parser invariants on extractFrontmatter()
    return shape. Cross-corpus "does not throw on any fixture" sweep.

  tests/feat-3594-parser-adversarial-roadmap.test.cjs (18 tests)
    Loads each fixture into a temp project's .planning/ROADMAP.md and
    drives `gsd-tools roadmap get-phase <N>` via the runCli harness
    introduced by #3593. Asserts on the typed JSON payload.

  tests/feat-3594-parser-property-style.test.cjs (2 tests)
    Deterministic mulberry32 PRNG generates 500 malformed-ish
    frontmatter inputs per test. Pins (a) extractFrontmatter is total
    over the corpus (no null-deref TypeError, always returns a plain
    object on success), (b) the suite completes well under 2 seconds
    (quadratic-regression guard).

Known-open bugs surfaced and pinned (intentionally NOT fixed in this
PR — separate issues warranted):

  - CJS roadmap parser matches `## Phase N:` headings inside fenced
    code blocks (the SDK parser tracks fences per the #2787 comment in
    sdk/src/query/roadmap.ts but the CJS path has not caught up).
  - CJS roadmap parser matches `## Phase N:` headings inside HTML
    comments.

Both are documented in-test with the "currently STILL matches it
(open: needs <fix>)" naming pattern so the day the production fix
lands, flipping the assertion from `found: true` to `found: false` is
the regression guard.

Test totals:
  - 32 new feat-3594-* tests (12 frontmatter + 18 roadmap + 2 property)
  - 108/108 pass when running together with the pre-existing
    frontmatter.test.cjs + roadmap.test.cjs suites (76 of theirs).

Closes #3594

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* test(3594): use Fisher-Yates shuffle for deterministic seeded inputs

Replaces `arr.sort(() => rng() - 0.5)` with a Fisher-Yates shuffle
driven by the supplied PRNG. The sort-based shuffle is non-transitive:
V8's TimSort behavior on non-transitive comparators is engine-defined,
so the same seed produced different orderings across Node versions —
undermining the test's stated reproducibility guarantee.

Fisher-Yates is O(n), transitive (no comparator at all), and consumes
exactly n-1 RNG values in a fixed order. The mulberry32 seed now
determines the input sequence end-to-end.

Codex review on PR #3633.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-16 00:23:27 -04:00

304 B

Roadmap

Some intro prose.

## Phase 999: this heading is inside a fenced code block

It must NOT be parsed as a real phase. Historical regression #2787.

Phase 1: real phase one

Goal: Ship something. Requirements: [R1]

Phase 2: real phase two

Goal: Ship something else.