| name | generate |
| description | "Use this skill when user says 'write tests', 'generate tests'," |
Generate Playwright Tests
Generate production-ready Playwright tests from a user story, URL, component name, or feature description.
Input
$ARGUMENTS contains what to test. Examples:
"user can log in with email and password"
"the checkout flow"
"src/components/UserProfile.tsx"
"the search page with filters"
Steps
1. Understand the Target
Parse $ARGUMENTS to determine:
- User story: Extract the behavior to verify
- Component path: Read the component source code
- Page/URL: Identify the route and its elements
- Feature name: Map to relevant app areas
2. Explore the Codebase
Use the Explore subagent to gather context:
- Read
playwright.config.ts for testDir, baseURL, projects
- Check existing tests in
testDir for patterns, fixtures, and conventions
- If a component path is given, read the component to understand its props, states, and interactions
- Check for existing page objects in
pages/
- Check for existing fixtures in
fixtures/
- Check for auth setup (
auth.setup.ts or storageState config)
3. Select Templates
Check templates/ in this plugin for matching patterns:
| If testing... | Load template from |
|---|
| Login/auth flow | templates/auth/login.md |
| CRUD operations | templates/crud/ |
| Checkout/payment | templates/checkout/ |
| Search/filter UI | templates/search/ |
| Form submission | templates/forms/ |
| Dashboard/data | templates/dashboard/ |
| Settings page | templates/settings/ |
| Onboarding flow | templates/onboarding/ |
| API endpoints | templates/api/ |
| Accessibility | templates/accessibility/ |
Adapt the template to the specific app — replace {{placeholders}} with actual selectors, URLs, and data.
4. Generate the Test
Follow these rules:
Structure:
import { test, expect } from '@playwright/test';
test.describe('Feature Name', () => {
test('should <expected behavior>', async ({ page }) => {
});
});
Locator priority (use the first that works):
getByRole() — buttons, links, headings, form elements
getByLabel() — form fields with labels
getByText() — non-interactive text content
getByPlaceholder() — inputs with placeholder text
getByTestId() — when semantic options aren't available
Assertions — always web-first:
await expect(page.getByRole('heading')).toBeVisible();
await expect(page.getByRole('alert')).toHaveText('Success');
const text = await page.textContent('.msg');
expect(text).toBe('Success');
Never use:
page.waitForTimeout()
page.$(selector) or page.$$(selector)
- Bare CSS selectors unless absolutely necessary
page.evaluate() for things locators can do
Always include:
- Descriptive test names that explain the behavior
- Error/edge case tests alongside happy path
- Proper
await on every Playwright call
baseURL-relative navigation (page.goto('/') not page.goto('http://...'))
5. Match Project Conventions
- If project uses TypeScript → generate
.spec.ts
- If project uses JavaScript → generate
.spec.js with require() imports
- If project has page objects → use them instead of inline locators
- If project has custom fixtures → import and use them
- If project has a test data directory → create test data files there
6. Generate Supporting Files (If Needed)
- Page object: If the test touches 5+ unique locators on one page, create a page object
- Fixture: If the test needs shared setup (auth, data), create or extend a fixture
- Test data: If the test uses structured data, create a JSON file in
test-data/
7. Verify
Run the generated test:
npx playwright test <generated-file> --reporter=list
If it fails:
- Read the error
- Fix the test (not the app)
- Run again
- If it's an app issue, report it to the user
Output
- Generated test file(s) with path
- Any supporting files created (page objects, fixtures, data)
- Test run result
- Coverage note: what behaviors are now tested
Why This Skill Exists
Generate Playwright tests.
When to Use
Use this skill when user says "write tests", "generate tests",
What If Fails
If this skill fails to produce the expected output: (1) verify input completeness, (2) retry with more specific context, (3) fall back to the parent workflow without this skill.