perf(ci): cache Playwright browsers, parallelize workers, tighten timeouts - #199
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…eouts Playwright was the critical path: shard 1 ran 3m46s-4m55s while CI finished in ~2min, so PR feedback was gated on it. - Playwright ran `workers: 1` on a 4-vCPU runner, serializing the suite for no reason. The mutating specs each create uniquely-suffixed fixtures and delete them in a `finally`, so they do not contend. Now `50%` (2 workers), leaving headroom for the API server + Postgres on the same box. PW_WORKERS overrides. - Cache ~/.cache/ms-playwright keyed on the resolved Playwright version. The chromium download ran on every shard of every run (~20s each); on a hit only the cheap apt-level deps are reasserted via `install-deps`. - Upload the HTML report on failure only (was `!cancelled()`), and drop its retention 30d -> 14d. Generating and uploading a green shard's report on every run cost time and was read by nobody. The dev log already uploaded on failure only. - Playwright job timeout 45 -> 20 min. The suite's own globalTimeout is 12 min and a healthy shard takes ~2; 45 only bought a hung run the right to burn 45 minutes before anyone noticed, which run 32217586129 did. - Postgres health probe 10s interval/5 retries -> 2s/20. The probe interval was padding container init on every DB-backed job; the retry budget is larger in wall-clock terms than before, so this is not a tighter deadline. No test was skipped, weakened, or removed.
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Included review availability: 0 reviews are currently available. Your included PR review attempts over the past 7 days set your current allowance at 2 reviews per hour. 📝 WalkthroughWalkthroughCI workflows now use updated action versions and faster PostgreSQL readiness checks. Playwright CI adds browser caching, configurable workers, shorter timeouts, failure-only report uploads, and deterministic stale-state testing. ChangesCI and Playwright workflow tuning
Estimated code review effort: 3 (Moderate) | ~20 minutes Merge Risk: 🔵 Low · up to CI still generates HTML reports on successful shards, so the PR does not fully realize its stated CI-time reduction; it is otherwise mergeable with owner follow-up to disable successful-run reports. Possibly related PRs
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✅ Passed checks (3 passed)
✨ Finishing Touches 💡 1📝 Generate docstrings 💡
🧪 Generate unit tests (beta)
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In @.github/workflows/playwright.yml:
- Line 63: Update all six pnpm/action-setup annotations in the CI workflow from
# v4.4.0 to # v6.0.10, matching the pinned action reference shown in the
workflow.
In `@playwright.shared.ts`:
- Around line 91-94: Update the reporter configuration around the reporter
option so CI runs do not include the html reporter and therefore avoid
generating playwright-report for successful shards; use the existing CI-safe
list or blob reporter, while preserving html reporting locally. Ensure the
failure workflow explicitly merges shard results into an HTML report with
playwright merge-reports --reporter=html, or revise the adjacent comment if the
workflow only uploads pre-generated reports.
Apply the same fix in @.github/workflows/playwright.yml around lines 92 - 98.
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…clock
Profiling the shard showed one test was the entire critical path: "stale —
connection loss escalates to the last-known takeover" took 120s of a 126s
shard. Every other test in the suite summed to ~7s.
The escalation it waits on is driven purely by timers (the 5s poll interval
plus TanStack's retry backoff), so observing it never needed two real minutes
of wall-clock. page.clock drives those timers instead.
Measured locally against a real server: 2.0 min -> 7.2s. The whole
board-states file now runs in 10s. Assertions are unchanged — still a real
all_clear render, a real escalation to `stale`, the exit-only takeover kind,
and the last-known 12/12 still on screen.
Two things that had to be right, both found by measurement rather than
assumption:
* `install({ time })`, not a bare `install()`. A bare install freezes time
before any app script runs and `page.goto` then never settles — the
navigation itself times out. Seeding a start time lets timers fire normally
during page load.
* Advance one ~8s failed-cycle at a time, yielding the event loop between
ticks. One large `fastForward` collapses the cycles and the missed-poll
counter never advances, so the state never escalates. A probe run showed
the transition landing at ~232s of driven time; the loop allows 40 ticks
and exits as soon as the state flips.
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Actionable comments posted: 2
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Inline comments:
In `@tests/board-states.spec.ts`:
- Around line 281-285: Update the state-reading loop in the board-state test to
remove the catch that converts locator errors to null. Let getAttribute on the
board-state-strip locator propagate timeout and page-closure failures directly,
while preserving the existing polling and assertion behavior.
- Around line 287-289: In the test loop around page.clock.runFor and
page.waitForTimeout, replace the fixed real-time wait with deterministic
synchronization for route or query-cycle completion. Track and await the
relevant completion signal, then advance the next cycle only after the aborted
request, retry cycle, and React update have settled.
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tests/board-states.spec.ts
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First measured run of the browser cache exposed that I had the cost model backwards. With the cache hit: browser install 0s, but the install-deps step I added for the hit path took 232s. apt, not the download, is what costs. ubuntu-latest already ships chromium's shared libraries (the very first run did a full `--with-deps` in 26s on one shard), so on a cache hit the correct action is to do nothing. `--with-deps` still runs on a miss.
…faster doing it Taking over #199. All four CodeRabbit findings hold up. 1. Six `pnpm/action-setup` annotations in ci.yml read `# v4.4.0` on SHA 0977fd99725f1db4007ccb2928dbb4e90d06cc86, which is **v6.0.10** — checked against pnpm/action-setup's own tag list, not assumed. Pre-existing, but this PR added playwright.yml carrying the correct annotation for the same SHA, so the file now contradicted itself. A wrong annotation is how a pin gets "upgraded" by editing a comment, or an audit concludes the repo is on v4. 2. playwright.shared.ts claimed CI no longer generates the HTML report. It does: `open: 'never'` suppresses the viewer, not the write. The comment described a change that was never made — the exact defect class this branch is otherwise fixing. Kept the reporter and corrected the comment: the workflow uploads `playwright-report/` on `if: failure()`, and a trace-linked report is what makes a red shard diagnosable. `blob` would be cheaper but needs a merge-reports step to become readable, moving cost off green runs and onto red ones — the wrong direction. 3. Dropped `.catch(() => null)` on the `data-state` read. A locator timeout or a closed page read as "not stale yet", so the loop spent another 39 ticks and the run died at the final assertion pointing at the wrong line. 4. Replaced `page.waitForTimeout(120)`. `page.clock.runFor` advances virtual time; that sleep was REAL wall-clock — a guess at how long an aborted fetch plus retry backoff take, and the only wall-clock dependency left in a test whose entire point is not to have one. The route handler now counts aborted polls and the loop waits for that counter to advance: the same wait stated as a fact instead of an estimate. It is also strictly faster, because it returns when the request lands instead of always paying the full 120 ms. Measured against the running dev server, same assertions: **6.1s -> 2.1s**, and 4 consecutive runs at 2.1s with no variance. Whole file 5/5 in 4.1s. `pnpm typecheck` exit 0.
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Aug 19, 2026
…reads on every PR `.coderabbit.yaml`'s `**/*` block is applied to every file in every PR, and it is live — PRs #197/#199/#200 all report `Configuration used: Path: .coderabbit.yaml`. Three of its seven architecture invariants were wrong: - "Schema lives in server/db.ts only" — db.ts has held no table since c1780d8 (2026-05-24). It is 23 lines: pool, drizzle instance, re-export. Tables live in server/schema/*.ts via the vtTable alias. The instruction was not merely stale, it pointed the reviewer at the wrong file for three months and survived an edit to this same file two months into that window. - "Medication volume must stay strictly below 100 ml" — enforced nowhere. - "Billing ledger inserts require deterministic idempotency keys" — the ledger was removed (shadow-inventory.service.ts:2). The realtime invariant was correct but had no carve-out for the sanctioned /collab-ws channel, so a correct change under server/lib/realtime-collab/ would have read as a violation. Added. .cursorrules said the right thing on lines 30 and 110 and the wrong thing on line 15 and in the heading at 151. A reader going top-down met the wrong one first. Aligned. No drift gate added: the obvious one (assert named paths exist) would not have caught this, since server/db.ts exists and merely stopped holding what was claimed. Reasoning recorded in the audit log. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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Playwright was the critical path for PR feedback: shard 1 ran 3m46s–4m55s while CI itself finished in ~2min.
Measured result
Run Playwright testsstepThe actual bottleneck was one test
Profiling the shard showed
board-states.spec.ts→ "stale — connection loss escalates to the last-known takeover" took 120s of a 126s shard. Every other test in the suite summed to ~7s.That escalation is driven purely by timers (5s poll interval + TanStack retry backoff), so it never needed two real minutes of wall clock. It now drives Playwright's
page.clock. Measured locally against a real server: 2.0min → 7.2s, assertions unchanged — still a realall_clearrender, a real escalation tostale, the exit-only takeover kind, and the last-known12/12on screen.Two things measurement caught that reasoning would have gotten wrong:
install({ time }), not a bareinstall(). A bare install freezes time before app scripts run andpage.gotonever settles — the navigation itself times out.fastForwardcollapses the cycles and the missed-poll counter never advances. A probe showed the transition landing at ~232s of driven time.Infrastructure
workers: 1→50%— the suite was serialized on a 4-vCPU runner. The mutating specs create uniquely-suffixed fixtures and delete them in afinally, so they don't contend. Confirmed in the log:Running 28 tests using 2 workers.PW_WORKERSoverrides.~/.cache/ms-playwrightkeyed on the resolved Playwright version.install-depson the cache-hit path assuming apt was the cheap half. It measured 232s — apt is the expensive half, the download never was. ubuntu-latest already ships chromium's shared libs, so a cache hit now runs nothing. Second commit fixes it; the numbers above are from the fixed version.!cancelled()), retention 30d → 14d.globalTimeoutis 12 min. 45 only bought a hung run the right to burn 45 minutes — run 32217586129 did exactly that.playwright.ymlto SHAs, matchingci.yml.Not changed
No test skipped, weakened, or removed. Shard count, suite allowlist, and retry policy untouched.
tsc --noEmitclean.Note: 7 service-worker tests (
pwa/phase-9-drills) fail against a plain local dev server both before and after this branch — they need the built SW, which CI provides. Not related to these changes; all green in CI.Summary by CodeRabbit
Tests
Chores