test: de-flake dialog outside-click and name the 404 in consumer e2e failures - #534
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…ency The consumer e2e suites intermittently failed on `Failed to load resource: the server responded with a status of 404 ()`, with no URL recorded, so the resource was undiagnosable from CI logs. collectFailures now records the console message location URL alongside the text, records every response with status >= 400, and records every request to a non-loopback host. expectWidgetBoots attaches the full failure detail to the console/page-error assertions so a CI failure names the resource. With that instrumentation the 404 reproduced locally in 1 of 6 runs under CPU load and named itself: fonts.gstatic.com serving the Manrope woff2 for the Google Fonts stylesheet that only e2e/tanstack-start and e2e/tanstack-start-redact import — exactly the two apps that flaked. Google serves the woff2 URL from an edge whose revision can lag the stylesheet's, which 404s. The fixture apps now use the system font stack, so neither app touches the public internet, and the third-party request assertion keeps it that way for every consumer e2e app. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
…ing behind the dialog
`lets a click behind the dialog close a dismissable dialog` failed under
full-repo serial load with `Cannot find element ... getByText('asked to
close, open false')` while the body showed the dialog still open.
@zag-js/dialog arms outside dismissal asynchronously: the machine calls
trackDismissableElement with defer: true, so the chain is raf ->
trackInteractOutside(defer: true) -> raf -> setTimeout(0) before the
capture-phase pointerdown listener is attached. The test only waited for
the dialog body to be visible, which happens synchronously at render, so
the click normally landed after arming only because the userEvent round
trip to the node side is slower than two frames. Under load the frames are
starved while the round trip is not, and the click lands unheard.
Frame starvation reproduces it deterministically, so the fix ships with a
test that starves requestAnimationFrame by 150ms and still expects the
close request. clickBehindTheDialog now yields two frames and a task first,
which is ordered strictly behind zag's own raf/raf/timeout chain by FIFO
rather than by wall clock, so it holds however slow the machine is. That
also un-vacuums the non-dismissable case, which previously could pass
because the click was never heard at all.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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Included review availability: Your plan includes up to 3 reviews per rolling hour; 0 remain after this review. 📝 WalkthroughWalkthroughThe PR adds third-party request diagnostics to widget boot checks, adds delayed-animation dialog coverage, and replaces external example fonts with system font fallbacks. ChangesWidget diagnostics
Dialog timing regression coverage
Font fallback updates
Estimated code review effort: 3 (Moderate) | ~20 minutes Merge Risk: 🔵 Low · up to The PR removes the flaky external font dependency, improves failure diagnostics, and makes dialog dismissal tests deterministic. It is mergeable with owner awareness that the frame-starvation test helper may leave delayed callbacks running after teardown, which could affect subsequent browser tests. Suggested labels: 🚥 Pre-merge checks | ✅ 5✅ Passed checks (5 passed)
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Pull request overview
Improves E2E diagnostics and removes two timing/network-related test flakes.
Changes:
- Eliminates external font requests from TanStack fixtures.
- Captures richer browser failure and request diagnostics.
- Synchronizes dialog outside-click tests with Zag’s deferred listener setup.
Reviewed changes
Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.
| File | Description |
|---|---|
packages/ui-kit-system/test/dialog.browser.test.tsx |
Adds deterministic dismissal synchronization and frame-starvation coverage. |
e2e/tanstack-start/src/styles.css |
Replaces remote fonts with system fonts. |
e2e/tanstack-start-redact/src/styles.css |
Replaces remote fonts with system fonts. |
e2e/e2e-utils/src/widget.ts |
Records request sources, HTTP failures, and third-party traffic. |
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Actionable comments posted: 3
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Inline comments:
In `@e2e/e2e-utils/src/widget.ts`:
- Around line 12-15: Update describeConsoleMessage and the related
failure-diagnostic URL handling to sanitize URLs before storing or reporting
them: remove userinfo, query, and fragment components from
message.location().url, request.url(), and response.url(). Reuse a single
URL-redaction helper across these paths so PageFailures and describeFailures
never retain credentials or tokens.
- Around line 61-70: Update requestFailures handling in describeFailures so
transient Vite optimizer responses matching HTTP 504 with the reason “Outdated
Optimize Dep” are excluded, while preserving the response reason and retaining
all other request failures. Ensure failures.requestFailures remains empty for
this transient case without broadening the filter to unrelated 504 responses.
In `@packages/ui-kit-system/test/dialog.browser.test.tsx`:
- Around line 52-58: Update starveFrames to track pending requestAnimationFrame
and setTimeout IDs, and make its restoration callback cancel all scheduled
frame/timer work and clear the tracking collections before restoring
window.requestAnimationFrame. Ensure teardown leaves no delayed dialog callbacks
pending.
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📒 Files selected for processing (4)
e2e/e2e-utils/src/widget.tse2e/tanstack-start-redact/src/styles.csse2e/tanstack-start/src/styles.csspackages/ui-kit-system/test/dialog.browser.test.tsx
Included review availability: Your plan includes up to 3 reviews per rolling hour; 1 remains after this review.
…rved frames on teardown Addresses three review findings on #534. Every URL recorded into PageFailures now goes through redactUrl, which keeps origin and pathname and drops userinfo, search and hash, so a credentialed or token-bearing URL can never reach a CI log. Non-http schemes record their protocol only, and an unparsable URL records a placeholder instead of throwing inside an event listener. The response listener no longer records Vite's documented transient 504 Outdated Optimize Dep, which the console-side filter already excludes; every other status >= 400 is still recorded, now carrying its reason text. starveFrames tracks the timers it schedules and clears them when afterEach restores requestAnimationFrame, so no delayed dialog callback survives teardown into the next test. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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Two pre-existing CI flakes, root-caused and fixed at the mechanism.
Flake 1 —
404 ()in the consumer e2e suitesconciv-e2e-tanstack-start-redactandconciv-e2e-tanstack-startintermittently failed their trailing console-error assertion onFailed to load resource: the server responded with a status of 404 ()(main runs 31793587995, 31898568256). The harness recorded only the message text, so the resource was unnameable from CI logs.Instrumentation.
collectFailuresnow records the console message'slocation().urlalongside its text, records every response with status >= 400, and records every request to a non-loopback host.expectWidgetBootsattaches the whole failure detail to the console/page-error assertions, so any future failure names the resource in the assertion output itself.Evidence. With the instrumentation in place the 404 reproduced locally in 1 of 6 runs of
conciv-e2e-tanstack-startunder CPU load and named itself:Mechanism.
e2e/tanstack-start/src/styles.cssande2e/tanstack-start-redact/src/styles.csswere the only two e2e fixtures importing a Google Fonts stylesheet — exactly the two apps that flaked. Google serves the woff2 from an edge whose font revision can lag the stylesheet its CSS just handed out, which 404s. The fixture apps now use the system font stack, so neither reaches the public internet. The new third-party-request assertion, which fails deterministically before the fix and passes after, keeps every consumer e2e app off the network for good.Flake 2 — dialog outside-click dismissal
packages/ui-kit-system/test/dialog.browser.test.tsx›lets a click behind the dialog close a dismissable dialogfailed under full-repo serial load withVitestBrowserElementError: Cannot find element with locator: getByText('asked to close, open false'), body showing the dialog still open.RCA.
@zag-js/dialogarms outside dismissal asynchronously.dialog.machine.mjscallstrackDismissableElement(..., {defer: true}), which israf -> trackInteractOutside({defer: true}) -> raf -> setTimeout(0)before the capture-phasepointerdownlistener is attached (@zag-js/interact-outside/dist/index.mjs:125). The test waited only for the dialog body to be visible, which is true synchronously at render; the click normally landed after arming purely because theuserEventround trip to the node side outlasts two frames. Under load the frames are starved while the round trip is not, and the click lands unheard. Reproduced deterministically by starvingrequestAnimationFrameby 150ms — same error, same DOM, withbody[data-inert]already set (raf #1 ran) but no listener yet (raf #2 pending).Mechanism.
clickBehindTheDialognow yields two frames and a task before clicking. Those are ordered strictly behind zag's own raf/raf/timeout chain by FIFO queue order, not by wall clock, so the wait holds however slow the machine is — no sleep, no polling. The frame-starvation case ships as a test, so the fix cannot silently regress. It also un-vacuums the non-dismissable case, which previously could pass because the click was never heard at all.Verification
turbo run test --filter=@conciv/ui-kit-system --force— 42 passedturbo run test:e2e --filter=conciv-e2e-tanstack-start-redact --filter=conciv-e2e-tanstack-start --force— both passeddialog.browser.test.tsxunder 12 busy cores — 10/10 tests green every runturbo run typecheck --filter=...@conciv/e2e-utils --filter=...@conciv/ui-kit-system— 76 passedpnpm lint,pnpm format:check— cleanfallow audit --changed-since main— verdict pass, 0 introducedconciv-publish check-changesets --require-coverage— exit 0 (test files and private packages only)🤖 Generated with Claude Code
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