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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:

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';
// Import custom fixtures if the project uses them

test.describe('Feature Name', () => {
  // Group related behaviors

  test('should <expected behavior>', async ({ page }) => {
    // Arrange: navigate, set up state
    // Act: perform user action
    // Assert: verify outcome
  });
});

Locator priority (use the first that works):

1. getByRole() — buttons, links, headings, form elements
2. getByLabel() — form fields with labels
3. getByText() — non-interactive text content
4. getByPlaceholder() — inputs with placeholder text
5. getByTestId() — when semantic options aren't available

Assertions — always web-first:

// GOOD — auto-retries
await expect(page.getByRole('heading')).toBeVisible();
await expect(page.getByRole('alert')).toHaveText('Success');

// BAD — no retry
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:

1. Read the error
2. Fix the test (not the app)
3. Run again
4. 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

Weekly Installs

88

Repository

alirezarezvani/…e-skills

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