Web Testing Skill

Comprehensive web testing: unit, integration, E2E, load, security, visual regression, accessibility.

Quick Start

bash

npx vitest run                    # Unit tests
npx playwright test               # E2E tests
npx playwright test --ui          # E2E with UI
k6 run load-test.js               # Load tests
npx @axe-core/cli https://example.com  # Accessibility
npx lighthouse https://example.com     # Performance

Testing Pyramid (70-20-10)

Layer	Ratio	Framework	Speed
Unit	70%	Vitest/Jest	<50ms
Integration	20%	Vitest + fixtures	100-500ms
E2E	10%	Playwright	5-30s

When to Use

Unit: Functions, utilities, state logic
Integration: API endpoints, database ops, modules
E2E: Critical flows (login, checkout, payment)
Load: Pre-release performance validation
Security: Pre-deploy vulnerability scanning
Visual: UI regression detection

Reference Documentation

Core Testing

./references/unit-integration-testing.md - Unit/integration patterns
./references/e2e-testing-playwright.md - Playwright E2E workflows
./references/component-testing.md - React/Vue/Angular component testing
./references/testing-pyramid-strategy.md - Test ratios, priority matrix

Cross-Browser & Mobile

./references/cross-browser-checklist.md - Browser/device matrix
./references/mobile-gesture-testing.md - Touch, swipe, orientation
./references/shadow-dom-testing.md - Web components testing

Interactive & Forms

./references/interactive-testing-patterns.md - Forms, keyboard, drag-drop
./references/functional-testing-checklist.md - Feature testing

Performance & Quality

./references/performance-core-web-vitals.md - LCP/CLS/INP, Lighthouse CI
./references/visual-regression.md - Screenshot comparison
./references/test-flakiness-mitigation.md - Stability strategies

Accessibility

./references/accessibility-testing.md - WCAG checklist, axe-core

Security

./references/security-testing-overview.md - OWASP Top 10, tools
./references/security-checklists.md - Auth, API, headers
./references/vulnerability-payloads.md - SQL/XSS/CSRF payloads

API & Load

./references/api-testing.md - API test patterns
./references/load-testing-k6.md - k6 load test patterns

Checklists

./references/pre-release-checklist.md - Complete release checklist

CI/CD Integration

yaml

jobs:
  test:
    steps:
      - run: npm run test:unit      # Gate 1: Fast fail
      - run: npm run test:e2e       # Gate 2: After unit pass
      - run: npm run test:a11y      # Accessibility
      - run: npx lhci autorun       # Performance