test: check the admin screens under a right-to-left locale

[TallblokeUK]

Adds a right-to-left Playwright project so RTL layout is checked on every run, not only when someone remembers to switch their locale.

• rtl.setup.ts installs the he_IL language pack (fetched from wordpress.org when missing) and puts the test user on it; rtl.teardown.ts switches the user back. If the pack cannot be installed, the specs notice the page is still left-to-right and skip rather than fail.
• rtl-layout.spec.ts visits the settings tabs, the snippets list, the new-snippet editor and the import screen at 1360px and asserts the document is mirrored, the direction multiplier is flipped, the page does not scroll sideways and no control sits outside the viewport. It fails on core-beta without fix: toolbar overflow and accessibility findings on the admin screens #522 (the view toggle sat 13px off the page edge) and passes with it.
• The default-mode CI job runs the RTL project after its own; the reusable workflow now accepts several project names.

Follow-ups from review of #522, in the same branch: the toolbar spec covers both sides of the 1400px boundary and returns one result shape; a new spec asserts the labels on both CodeMirror inputs; the stale wrap comment describes the tablet collapse.

Summary by CodeRabbit

• Accessibility

  • Added end-to-end coverage confirming accessible labels for snippet editor and settings preview fields.

• RTL Support

  • Added coverage for right-to-left layouts across settings, snippets, new-snippet, and import screens.
  • Verified controls remain visible without horizontal page overflow.

• Responsive Design

  • Expanded toolbar layout checks across desktop widths, including wrapping boundaries and RTL behavior.

• Tests

  • Updated automated browser testing to run both standard and RTL scenarios.

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Walkthrough

Changes

RTL Playwright coverage

Layer / File(s)	Summary
RTL environment setup tests/e2e/rtl.setup.ts, tests/e2e/rtl.teardown.ts	The setup installs the he_IL language pack and sets the admin locale. The teardown restores the site locale and removes locale metadata.
RTL Playwright project wiring config/playwright/playwright.config.ts	The configuration adds RTL setup, test, and teardown projects. Snippet projects exclude RTL files.
RTL test execution .github/workflows/playwright.yml, .github/workflows/playwright-test.yml, tests/e2e/rtl-layout.spec.ts	The workflow runs the RTL project. The test suite checks RTL state, overflow, and viewport containment across five admin screens. The command accepts multiple project names.

Accessibility and responsive layout validation

Layer / File(s)	Summary
Editor accessibility checks tests/e2e/editor-labels.spec.ts	The tests verify accessible labels for the snippet editor and settings preview CodeMirror inputs.
Toolbar responsive checks src/css/common/list-table/_responsive.scss, tests/e2e/list-toolbar-fit.spec.ts	Toolbar tests cover the 1400px wrapping boundary and RTL layout. Missing toolbar elements now raise rendering errors. The responsive behavior comment documents the width ranges.

Estimated code review effort: 3 (Moderate) | ~20 minutes

Merge Risk: 🟡 Moderate · up to 048dd

The new RTL checks can alter the shared admin locale without reliably restoring it, and the default command does not run the RTL project. This can leave test state changed and ship without the intended RTL coverage.

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Important

Pre-merge checks failed

Please resolve all errors before merging. Addressing warnings is optional.

❌ Failed checks (1 error, 2 warnings)

Check name	Status	Explanation	Resolution
Correctness And Security	❌ Error	The default CI suite runs under the RTL locale. .github/workflows/playwright.yml:25 selects chromium-db-snippets chromium-rtl, but config/playwright/playwright.config.ts:87-94 makes rtl-setup …	Run chromium-db-snippets and chromium-rtl as two sequential Playwright invocations in the same job, or make rtl-setup explicitly depend on chromium-db-snippets. Ensure the default project finishes before rtl-setup changes the user…
Pr Hygiene	⚠️ Warning	The title is a short conventional-commit summary. The PR body is present and mainly factual. No commit trailers were found. The PR body contains an AI attribution block at lines 10-27.	Remove the AI-generated attribution and release-note block from the PR body. Keep the factual change summary.
Scope Discipline	⚠️ Warning	The PR mixes three concerns. The RTL Playwright project is implemented in config/playwright/playwright.config.ts:17,70,80,83-107, tests/e2e/rtl-layout.spec.ts:7-60, the RTL setup and teardown file…	Split the work into focused PRs. Keep the RTL PR limited to the RTL setup, teardown, layout tests, Playwright configuration, and CI wiring. Move the toolbar boundary coverage and comment to a responsive-toolbar PR. Move the CodeMirror `aria…

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title uses the conventional-commit prefix "test:" and clearly describes the added RTL Playwright coverage. It is 58 characters long.
Ponytail: No Over-Engineering	✅ Passed	No needless complexity is evident. The new rtl-setup and rtl-teardown projects isolate the locale change in config/playwright/playwright.config.ts:87-107. The SCREENS table and LayoutReport …

Full details: Correctness And Security

Explanation

The default CI suite runs under the RTL locale. .github/workflows/playwright.yml:25 selects chromium-db-snippets chromium-rtl, but config/playwright/playwright.config.ts:87-94 makes rtl-setup depend only on setup. Playwright therefore schedules rtl-setup and chromium-db-snippets in the same phase. With the configured single worker, the observed order is [setup] | [rtl-setup, chromium-db-snippets] | [chromium-rtl] | [rtl-teardown]. Input: the default suite is selected together with the RTL project. Wrong output: default tests run after the locale changes to he_IL, instead of before the RTL project. This can change document direction and locale-sensitive UI during the default tests.

Resolution

Run chromium-db-snippets and chromium-rtl as two sequential Playwright invocations in the same job, or make rtl-setup explicitly depend on chromium-db-snippets. Ensure the default project finishes before rtl-setup changes the user locale, and keep rtl-teardown after chromium-rtl.

Full details: Ponytail: No Over-Engineering

Explanation

No needless complexity is evident. The new rtl-setup and rtl-teardown projects isolate the locale change in config/playwright/playwright.config.ts:87-107. The SCREENS table and LayoutReport type in tests/e2e/rtl-layout.spec.ts:7-43 avoid repeated test code. The shared rtlSpecs matcher in config/playwright/playwright.config.ts:17 serves both inclusion and exclusion. The PR adds no dependency.

Full details: Scope Discipline

Explanation

The PR mixes three concerns. The RTL Playwright project is implemented in config/playwright/playwright.config.ts:17,70,80,83-107, tests/e2e/rtl-layout.spec.ts:7-60, the RTL setup and teardown files, and the workflow changes. The toolbar concern changes responsive-width coverage and documentation in src/css/common/list-table/_responsive.scss:3-7 and tests/e2e/list-toolbar-fit.spec.ts:7-31. The editor accessibility concern adds independent CodeMirror aria-label tests in tests/e2e/editor-labels.spec.ts:3-19. The latter does not run through the RTL project, and the toolbar test covers LTR boundary widths rather than the RTL suite. These changed files introduce unrelated review follow-ups in the RTL PR.

Resolution

Split the work into focused PRs. Keep the RTL PR limited to the RTL setup, teardown, layout tests, Playwright configuration, and CI wiring. Move the toolbar boundary coverage and comment to a responsive-toolbar PR. Move the CodeMirror aria-label tests to an accessibility PR.

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch test/rtl-layout-project/core

✨ Simplify code

• Create PR with simplified code
• Commit simplified code in branch test/rtl-layout-project/core

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Actionable comments posted: 4

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Inline comments:
In @.github/workflows/playwright.yml:
- Line 25: Update the Playwright project arguments in the workflow so each
--project option receives exactly one project name: select both
chromium-db-snippets and chromium-rtl separately.

In `@tests/e2e/editor-labels.spec.ts`:
- Line 11: Update the assertions in the editor-labels test around the CodeMirror
textarea to use the active locale’s translated aria-label, including the RTL
he_IL project, while preserving deterministic isolated test behavior;
alternatively exclude this spec from the RTL project if locale-aware assertions
are not supported.

In `@tests/e2e/rtl.setup.ts`:
- Line 19: Save the admin user’s existing locale value and whether locale
metadata is absent in tests/e2e/rtl.setup.ts lines 19-19 before applying
RTL_LOCALE, then restore that exact state in tests/e2e/rtl.teardown.ts lines 7-8
instead of always clearing the metadata. Add an E2E case covering an admin that
starts with a non-default locale, preserving deterministic test isolation.

In `@tests/e2e/rtl.teardown.ts`:
- Line 9: Update the teardown’s locale-restore handling around the first wpCli
call so failures are not silently swallowed: catch only the expected missing
locale-meta error and rethrow any other user-update failure. Add an explicit
failure-path check for that initial wpCli invocation while preserving
deterministic teardown behavior.

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Repository UI

Review profile: ASSERTIVE

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Run ID: e3adb569-9c61-46f3-b9df-4fdd689304b5

📥 Commits

Reviewing files that changed from the base of the PR and between efaeb56 and 048dd1e.

📒 Files selected for processing (9)

• .github/workflows/playwright-test.yml
• .github/workflows/playwright.yml
• config/playwright/playwright.config.ts
• src/css/common/list-table/_responsive.scss
• tests/e2e/editor-labels.spec.ts
• tests/e2e/list-toolbar-fit.spec.ts
• tests/e2e/rtl-layout.spec.ts
• tests/e2e/rtl.setup.ts
• tests/e2e/rtl.teardown.ts

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