test: add regression coverage for customize responses, history icons, and error handlers

[cursor]

Description

Adds regression integration tests for recently merged special-pages behavior that shipped without adequate coverage.

Risky behavior now covered

1. NTP Customize Responses Tools menu (Add Customize Responses to NTP omnibar Tools menu #2865) — config gating, backend sublabel, native omnibar_openCustomizeResponses / omnibar_setCustomizeResponsesActive notifications, apply toggle, collapsed tools trigger when customization is active, and disabled state during image-generation mode.
2. History macOS rebranding icons (History: Updates Icons on macOS #2886) — platform-specific sidebar icon map selection (rebrandingIconMap vs iconMap).
3. Global error listeners (history + new-tab) — parity with onboarding for cross-origin ErrorEvent fallbacks, non-Error throws, and primitive/nullish rejection reasons.
4. NTP attachmentLimits.images.maxPerTurn (NTP: Use attachmentLimits config for NTP omnibar attachments #2816) — backend-configured per-turn image cap enforcement.

Test files added/updated

• special-pages/pages/new-tab/app/omnibar/integration-tests/omnibar.spec.js
• special-pages/pages/new-tab/app/omnibar/integration-tests/omnibar.page.js
• special-pages/pages/new-tab/app/omnibar/integration-tests/omnibar-attachments.spec.js
• special-pages/pages/history/integration-tests/history.spec.js
• special-pages/pages/history/integration-tests/history.page.js
• special-pages/pages/new-tab/integration-tests/new-tab.spec.js

Why these tests materially reduce regression risk

• Customize Responses is user-facing AI chat configuration wired through multiple config flags and native notifications; a regression could silently break customization or send wrong native messages.
• History icon selection is a simple platform branch easy to break during rebranding work.
• Error-handler edge cases affect crash reporting fidelity in production.
• imageMaxPerTurn is a server-driven limit; hardcoding assumptions in tests would miss backend contract changes.

Testing Steps

cd special-pages
npm run test-int -- --project integration --grep "AI chat customize responses|sidebar icons|global error listeners|image cap follows" --reporter list

All 25 new/updated tests pass on the integration project.

Checklist

• I have tested this change locally
• I have tested this change locally in all supported browsers
• This change will be visible to users
• I have added automated tests that cover this change
• I have ensured the change is gated by config
• This change was covered by a ship review
• This change was covered by a tech design
• Any dependent config has been merged

  

[github-actions]

Build Branch

Branch	pr-releases/cursor/regression-test-coverage-automation-b1b2
Commit	8de09a2203
Updated	July 27, 2026 at 8:07:57 AM UTC

Static preview entry points

• Docs: docs/index.html
• Static pages: build/integration/pages/index.html
• Integration pages: injected/integration-test/test-pages/index.html

QR codes (mobile preview)

Entry point	QR code
Docs
Static pages
Integration pages

Integration commands

npm (Android / Extension):

npm i github:duckduckgo/content-scope-scripts#pr-releases/cursor/regression-test-coverage-automation-b1b2

Swift Package Manager (Apple):

.package(url: "https://github.com/duckduckgo/content-scope-scripts.git", branch: "pr-releases/cursor/regression-test-coverage-automation-b1b2")

git submodule (Windows):

git -C submodules/content-scope-scripts fetch origin pr-releases/cursor/regression-test-coverage-automation-b1b2
git -C submodules/content-scope-scripts checkout origin/pr-releases/cursor/regression-test-coverage-automation-b1b2

Pin to exact commit

npm (Android / Extension):

npm i github:duckduckgo/content-scope-scripts#8de09a22030a6283b2e7bfca727ab933b9ba0b5a

Swift Package Manager (Apple):

.package(url: "https://github.com/duckduckgo/content-scope-scripts.git", revision: "8de09a22030a6283b2e7bfca727ab933b9ba0b5a")

git submodule (Windows):

git -C submodules/content-scope-scripts fetch origin pr-releases/cursor/regression-test-coverage-automation-b1b2
git -C submodules/content-scope-scripts checkout 8de09a22030a6283b2e7bfca727ab933b9ba0b5a

[github-actions]

[Beta] Generated file diff

Time updated: Mon, 27 Jul 2026 08:08:56 GMT