clerk-testing

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• SKILL.md

SKILL.md (first lines)

# Testing

## Decision Tree

| Framework | Documentation |
|-----------|---------------|
| Overview | https://clerk.com/docs/guides/development/testing/overview |
| Playwright | https://clerk.com/docs/guides/development/testing/playwright/overview |
| Cypress | https://clerk.com/docs/guides/development/testing/cypress/overview |

## Mental Model

Test auth = isolated session state. Each test needs fresh auth context.
- `clerkSetup()` initializes test environment
- `setupClerkTestingToken()` bypasses bot detection
- `storageState` persists auth between tests for speed

## Workflow

1. Identify test framework (Playwright or Cypress)
2. Use the host's web retrieval tool to fetch the appropriate URL from the decision tree above
3. Follow official setup instructions
4. Use `pk_test_*` and `sk_test_*` keys only

## Best Practices

- Use `setupClerkTestingToken()` before navigating to auth pages
- Use test API keys: `pk_test_xxx`, `sk_test_xxx`
- Save auth state with `storageState` for faster tests
- Use `page.waitForSelector('[data-clerk-component]')` for Clerk UI

## Anti-Patterns

| Pattern | Problem | Fix |
|---------|---------|-----|
| Production keys in tests | Security risk | Use `pk_test_*` keys |
| No `setupClerkTestingToken()` | Auth fails | Call before navigation |
| UI-based sign-in every test | Slow tests | Use `storageState` |

## Framework-Specific

**Playwright**: Use `globalSetup` for auth state
**Cypress**: Add `addClerkCommands({ Cypress, cy })` to support file

## See Also

- `clerk-setup` - Install Clerk before adding tests
- `clerk-react-patterns` - React patterns being tested
- [Demo Repo](https://github.com/clerk/clerk-playwright-nextjs/tree/main/e2e)

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