Files
gbrain/scripts
Garry TanandClaude Opus 4.7 8ffaa77b55 test(e2e): run files sequentially to eliminate shared-DB race
The E2E suite was flaky. ~3 of every 5 runs had 4-10 failures clustered
in Links, Timeline, Versions, Minions resilience, Parallel Import, and
Page CRUD tests. Symptoms included "expected 16 pages, got 8" (half),
"expected 1 link inserted, got 0", timeline entries missing after
round-trip, and similar data-shape mismatches.

Root cause: bun test runs test FILES in parallel (each in a worker
process). 13 E2E files share one DATABASE_URL, and `setupDB()` in
`test/e2e/helpers.ts` does `TRUNCATE ... CASCADE` on all tables before
each file's `importFixtures()`. File A's TRUNCATE would race with file
B's in-flight INSERT stream, producing the observed half-populated or
wrong-count states.

An earlier attempt used a Postgres advisory lock held on a dedicated
single-connection client for the lifetime of each file's run. It broke
because bun's default 5000 ms hook timeout fires on queued beforeAll()
calls: with 13 files serializing through the lock, files 2-13 would
time out waiting for file 1 to finish.

This commit switches to sequential file execution at the harness level
via scripts/run-e2e.sh, which loops through test/e2e/*.test.ts one at
a time, tracks aggregate pass/fail counts, and exits non-zero on the
first failing file. No lock, no timeout issues, no changes to any test
file. package.json test:e2e points at the new script.

Verified: 5 back-to-back runs against the same Postgres container,
each completing in ~5 min. Every run: 13 files, 138 tests, 0 fails.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-21 00:09:49 +08:00
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