Replaced singleFork:true + sequence config with the simpler fileParallelism:false
which correctly serializes test file execution. The previous singleFork approach
ran tests from multiple files concurrently within one process, allowing the global
afterEach cleanup (test/setup.ts: truncates lists/listShares) to delete rows mid-test
in another file, causing intermittent FK violations (ER_DUP_ENTRY, ER_NO_REFERENCED_ROW).
fileParallelism:false runs one test file at a time so afterEach cleanup for file A
never races with insertions from file B.
listEmitter.ts:
- Module-level EventEmitter singleton; setMaxListeners(200) (T-04-04)
- publishListEvent(listId, event): emits on list:${listId} channel
- subscribeListEvents(listId, handler): registers listener, returns unsub closure
- ListEvent type union: item:added/updated/deleted, list:updated/deleted
- D-04 isolation guaranteed by per-list channel keying
listAccess.ts:
- getAccessibleListIds(userId): two SELECT queries (owned + shared), Set dedupe
- Satisfies T-04-02/T-04-03: over-returning proven impossible by Test 7
listAccess.test.ts fix:
- Use randomUUID() suffix in seedUser to avoid oidc_sub unique-key collisions
across test re-runs (users table not truncated by global afterEach)
vitest.config.ts:
- pool: 'forks' + singleFork: true to prevent FK violations from concurrent
DB workers racing against the shared-state global afterEach cleanup
- sequence.concurrent: false as belt-and-suspenders
ioredis NOT introduced (D-18 abstraction boundary satisfied)
- Add react-router@7, @dnd-kit/core, @dnd-kit/sortable, fractional-indexing to PWA
- Add fractional-indexing to API (rank generation server-side)
- ioredis NOT added (in-memory EventEmitter per RESEARCH Plan 02 justification)
- Create apps/api/test/setup.ts with afterEach DB cleanup for list tables
- Wire test.setupFiles in apps/api/vitest.config.ts
- Add 4 Wave-0 RED stub test files (LIST-01/02/03/04, D-04, D-11, D-07)
- All stubs run as todo, not import-error
Lucas Berger