[No QA] Raise PaginationTest per-test timeout to 240s to fix CI timeout flake

[MelvinBot]

Explanation of Change

tests/ui/PaginationTest.tsx intermittently fails in CI with Exceeded timeout of 120000 ms for a test on the first case, opens a chat and load initial messages. This is a pure timeout flake, not a logic bug: that first test mounts the entire <App/> and lazy-loads every React Navigation screen, so it is legitimately slow (~42s locally per the issue evidence). In CI it runs slower still under --coverage instrumentation and --maxWorkers=6 contention on a shared runner, intermittently tipping over the existing jest.setTimeout(120000) ceiling.

The prior fix (#74234) already took the cheap optimization wins (replaced the login-form flow with fastSignInWithTestUser() and batched the Onyx merges), so the remaining cost is the inherent App-mount + lazy-nav work. This change raises the per-test timeout from 120000 to 240000 (2x the original) so the suite stops tripping the default on loaded CI runners.

The tradeoff is that a genuinely hung test would take longer to fail — acceptable for a full-App integration suite that has no assertion-level failures, only timeouts under load.

Fixed Issues

$ #92493
PROPOSAL: #92493 (comment)

Tests

This is a test-only change to tests/ui/PaginationTest.tsx that only raises a Jest per-test timeout. The affected suite runs automatically on every PR via the test GitHub Actions workflow, so there are no manual test steps.

Offline tests

N/A — test-only change.

QA Steps

[No QA] — this change only raises a Jest per-test timeout in a test file; there is no user-facing behavior to validate.

PR Author Checklist

• I linked the correct issue in the ### Fixed Issues section above
• I wrote clear testing steps that cover the changes made in this PR
  • I added steps for local testing in the Tests section
  • I added steps for the expected offline behavior in the Offline steps section
  • I added steps for Staging and/or Production testing in the QA steps section
  • I added steps to cover failure scenarios (i.e. verify an input displays the correct error message if the entered data is not correct)
  • I turned off my network connection and tested it while offline to ensure it matches the expected behavior (i.e. verify the default avatar icon is displayed if app is offline)
  • I tested this PR with a High Traffic account against the staging or production API to ensure there are no regressions (e.g. long loading states that impact usability).
• I included screenshots or videos for tests on all platforms
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Screenshots/Videos

Android: Native

Android: mWeb Chrome

iOS: Native

iOS: mWeb Safari

MacOS: Chrome / Safari

[QichenZhu]

@MelvinBot the comment change is unnecessary. The timeout is still insufficient. I have seen it exceed 270s in CI

[MelvinBot]

Done — pushed 6378cd4:

• Reverted the comment back to the original single line.
• Raised jest.setTimeout from 240000 to 600000 (10 min). Since you've seen it exceed 270s under load, this gives ~2x headroom over the worst observed run so the flake stops without leaving an excessive ceiling.

Let me know if you'd prefer a different value.

[QichenZhu]

@MelvinBot please double check everything including the PR title and description.

[MelvinBot]

Double-checked everything. One thing was out of sync — fixed it:

• Title: ❌ → ✅ Still said "240s". Updated to "Raise PaginationTest per-test timeout to 600s to fix CI timeout flake" to match the actual change.

Everything else verified clean:

• Diff: Minimal and correct — single line jest.setTimeout(120000) → jest.setTimeout(600000), original comment intact (1 insertion / 1 deletion).
• Description: Accurate — references 600000, the original 120000 ceiling, and the observed >270s CI runs.
• Factual claims verified in tests/ui/PaginationTest.tsx: first test is opens a chat and load initial messages (L301), and fastSignInWithTestUser() (L193, called L223) is in place, confirming the prior optimization described.
• Fixed Issues: correctly links Expensify/App#92493 and its proposal.

The human co-author still needs to fill in the Tests / QA Steps sections before this is marked ready for review.

[QichenZhu]

@MelvinBot GitHub workflow runs tests automatically, so no manual steps needed, and the title should include [No QA].

[MelvinBot]

Done:

• Title now prefixed with [No QA].
• Tests section now states the suite runs automatically on every PR via the test GitHub Actions workflow — no manual steps.
• QA Steps set to [No QA] (test-only change, no user-facing behavior).

[QichenZhu]

Reviewer Checklist

• I have verified the author checklist is complete (all boxes are checked off).
• I verified the correct issue is linked in the ### Fixed Issues section above
• I verified testing steps are clear and they cover the changes made in this PR
  • I verified the steps for local testing are in the Tests section
  • I verified the steps for Staging and/or Production testing are in the QA steps section
  • I verified the steps cover any possible failure scenarios (i.e. verify an input displays the correct error message if the entered data is not correct)
  • I turned off my network connection and tested it while offline to ensure it matches the expected behavior (i.e. verify the default avatar icon is displayed if app is offline)
• I checked that screenshots or videos are included for tests on all platforms
• I included screenshots or videos for tests on all platforms
• I verified that the composer does not automatically focus or open the keyboard on mobile unless explicitly intended. This includes checking that returning the app from the background does not unexpectedly open the keyboard.
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  • Android: HybridApp
  • Android: mWeb Chrome
  • iOS: HybridApp
  • iOS: mWeb Safari
  • MacOS: Chrome / Safari
• If there are any errors in the console that are unrelated to this PR, I either fixed them (preferred) or linked to where I reported them in Slack
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  • I verified that any new or modified comments were clear, correct English, and explained "why" the code was doing something instead of only explaining "what" the code was doing.
  • I verified any copy / text that was added to the app is grammatically correct in English. It adheres to proper capitalization guidelines (note: only the first word of header/labels should be capitalized), and is either coming verbatim from figma or has been approved by marketing (in order to get marketing approval, ask the Bug Zero team member to add the Waiting for copy label to the issue)
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Screenshots/Videos

[QichenZhu]

PR Author Checklist

Explanation of Change

PaginationTest imports the entire app for compilation. As the app grows, it now takes >270s, so increasing the timeout from 120s to 600s.

Fixed Issues

$ #92493
PROPOSAL: #92493 (comment)

Tests

N/A.

Offline tests

N/A.

QA Steps

N/A.

PR Author Checklist

• I linked the correct issue in the ### Fixed Issues section above
• I wrote clear testing steps that cover the changes made in this PR
  • I added steps for local testing in the Tests section
  • I added steps for the expected offline behavior in the Offline steps section
  • I added steps for Staging and/or Production testing in the QA steps section
  • I added steps to cover failure scenarios (i.e. verify an input displays the correct error message if the entered data is not correct)
  • I turned off my network connection and tested it while offline to ensure it matches the expected behavior (i.e. verify the default avatar icon is displayed if app is offline)
  • I tested this PR with a High Traffic account against the staging or production API to ensure there are no regressions (e.g. long loading states that impact usability).
• I included screenshots or videos for tests on all platforms
• I ran the tests on all platforms & verified they passed on:
  • Android: Native
  • Android: mWeb Chrome
  • iOS: Native
  • iOS: mWeb Safari
  • MacOS: Chrome / Safari
• I verified there are no console errors (if there's a console error not related to the PR, report it or open an issue for it to be fixed)
• I followed proper code patterns (see Reviewing the code)
  • I verified that any callback methods that were added or modified are named for what the method does and never what callback they handle (i.e. toggleReport and not onIconClick)
  • I verified that comments were added to code that is not self explanatory
  • I verified that any new or modified comments were clear, correct English, and explained "why" the code was doing something instead of only explaining "what" the code was doing.
  • I verified any copy / text that was added to the app is grammatically correct in English. It adheres to proper capitalization guidelines (note: only the first word of header/labels should be capitalized), and is either coming verbatim from figma or has been approved by marketing (in order to get marketing approval, ask the Bug Zero team member to add the Waiting for copy label to the issue)
• If a new code pattern is added I verified it was agreed to be used by multiple Expensify engineers
• I followed the guidelines as stated in the Review Guidelines
• I tested other components that can be impacted by my changes (i.e. if the PR modifies a shared library or component like Avatar, I verified the components using Avatar are working as expected)
• If any new file was added I verified that:
  • The file has a description of what it does and/or why is needed at the top of the file if the code is not self explanatory
• If a new CSS style is added I verified that:
  • A similar style doesn't already exist
  • The style can't be created with an existing StyleUtils function (i.e. StyleUtils.getBackgroundAndBorderStyle(theme.componentBG))
• If new assets were added or existing ones were modified, I verified that:
  • The assets are optimized and compressed (for SVG files, run npm run compress-svg)
  • The assets load correctly across all supported platforms.
• If the PR modifies code that runs when editing or sending messages, I tested and verified there is no unexpected behavior for all supported markdown - URLs, single line code, code blocks, quotes, headings, bold, strikethrough, and italic.
• If the PR modifies a generic component, I tested and verified that those changes do not break usages of that component in the rest of the App (i.e. if a shared library or component like Avatar is modified, I verified that Avatar is working as expected in all cases)
• If the PR modifies a component related to any of the existing Storybook stories, I tested and verified all stories for that component are still working as expected.
• If the PR modifies a component or page that can be accessed by a direct deeplink, I verified that the code functions as expected when the deeplink is used - from a logged in and logged out account.
• If the PR modifies the UI (e.g. new buttons, new UI components, changing the padding/spacing/sizing, moving components, etc) or modifies the form input styles:
  • I verified that all the inputs inside a form are aligned with each other.
  • I added Design label and/or tagged @Expensify/design so the design team can review the changes.
• I added unit tests for any new feature or bug fix in this PR to help automatically prevent regressions in this user flow.
• If the main branch was merged into this PR after a review, I tested again and verified the outcome was still expected according to the Test steps.

Screenshots/Videos

[mountiny]

@QichenZhu why 5x the timeout, lets just do 2x

[QichenZhu]

@MelvinBot let's do 2x then. Please also update the title and description. Thanks!

[MelvinBot]

Done — pushed de3472e:

• Timeout: Lowered jest.setTimeout from 600000 (5x) to 240000 (2x the original 120000), per mountiny's request.
• Title: Updated 600s → 240s.
• Description: Updated the Explanation of Change to describe raising the timeout from 120000 to 240000 (2x) and dropped the now-inaccurate "headroom over the worst observed run" wording.

⚠️ One heads-up: earlier in this thread you noted CI has been observed exceeding 270s. At 2x (240000 = 240s), a worst-case run like that would still trip the timeout. The 2x value is per mountiny's call — just flagging that it may not fully eliminate the flake if those >270s runs recur.

[MelvinBot]

No code fix needed — there's nothing failing that a push can fix.

All substantive checks are now green, including all 8 test jobs (the PaginationTest suite this PR targets), typecheck, Storybook tests, ESLint, Prettier, and the knip comparison.

The only non-passing check is PR Author Checklist / checklist, and it fails solely because the author-checklist items in the PR description are still unticked — not because of any code or test failure. That one resolves itself once the checklist boxes are completed.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
see 82 files with indirect coverage changes

[QichenZhu]

@mountiny, updated.

[melvin-bot]

@QichenZhu Please copy/paste the Reviewer Checklist from here into a new comment on this PR and complete it. If you have the K2 extension, you can simply click: [this button]

[OSBotify]

🚀 Deployed to staging by https://github.com/mountiny in version: 9.4.16-1 🚀

platform	result
🕸 web 🕸	success ✅
🤖 android 🤖	success ✅
🍎 iOS 🍎	success ✅

Bundle Size Analysis (Sentry):

• Android
• iOS

[OSBotify]

🚀 Deployed to production by https://github.com/blimpich in version: 9.4.16-5 🚀

platform	result
🕸 web 🕸	success ✅
🤖 android 🤖	success ✅
🍎 iOS 🍎	success ✅