Review

Review Playwright Tests

Systematically review Playwright test files for anti-patterns, missed best practices, and coverage gaps.

Input

$ARGUMENTS can be:

• A file path: review that specific test file
• A directory: review all test files in the directory
• Empty: review all tests in the project's testDir

Steps

1. Gather Context

• Read playwright.config.ts for project settings
• List all *.spec.ts / *.spec.js files in scope
• If reviewing a single file, also check related page objects and fixtures

2. Check Each File Against Anti-Patterns

Load anti-patterns.md from this skill directory. Check for all 20 anti-patterns.

Critical (must fix):

1. waitForTimeout() usage
2. Non-web-first assertions (expect(await ...))
3. Hardcoded URLs instead of baseURL
4. CSS/XPath selectors when role-based exists
5. Missing await on Playwright calls
6. Shared mutable state between tests
7. Test execution order dependencies

Warning (should fix): 8. Tests longer than 50 lines (consider splitting) 9. Magic strings without named constants 10. Missing error/edge case tests 11. page.evaluate() for things locators can do 12. Nested test.describe() more than 2 levels deep 13. Generic test names ("should work", "test 1")

Info (consider): 14. No page objects for pages with 5+ locators 15. Inline test data instead of factory/fixture 16. Missing accessibility assertions 17. No visual regression tests for UI-heavy pages 18. Console error assertions not checked 19. Network idle waits instead of specific assertions 20. Missing test.describe() grouping

3. Score Each File

Rate 1-10 based on:

• 9-10: Production-ready, follows all golden rules
• 7-8: Good, minor improvements possible
• 5-6: Functional but has anti-patterns
• 3-4: Significant issues, likely flaky
• 1-2: Needs rewrite

4. Generate Review Report

For each file:

## <filename> — Score: X/10

### Critical
- Line 15: `waitForTimeout(2000)` → use `expect(locator).toBeVisible()`
- Line 28: CSS selector `.btn-submit` → `getByRole('button', { name: "submit" })`

### Warning
- Line 42: Test name "test login" → "should redirect to dashboard after login"

### Suggestions
- Consider adding error case: what happens with invalid credentials?

5. For Project-Wide Review

If reviewing an entire test suite:

• Spawn sub-agents per file for parallel review (up to 5 concurrent)
• Or use /batch for very large suites
• Aggregate results into a summary table

6. Offer Fixes

For each critical issue, provide the corrected code. Ask user: "Apply these fixes? [Yes/No]"

If yes, apply all fixes using Edit tool.

Output

• File-by-file review with scores
• Summary: total files, average score, critical issue count
• Actionable fix list
• Coverage gaps identified (pages/features with no tests)

When to Use

Review Playwright tests for quality. Use when user says "review tests", "check test quality", "audit tests", "improve tests", "test code review", or "playwright best practices check".

Covers: Review Playwright Tests, Gather Context, Check Each File Against Anti-Patterns, Score Each File, Generate Review Report.