Web Testing Skill

Output style: Follow process/development-protocols/communication-standards.md — answer-first, plain language, no unexplained jargon, TL;DR on long responses.

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

Quick Start

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 Strategy (Choose Your Model)

Model	Structure	Best For
Pyramid	Unit 70% > Integration 20% > E2E 10%	Monoliths
Trophy	Integration-heavy	Modern SPAs
Honeycomb	Contract-centric	Microservices

→ ./references/testing-pyramid-strategy.md

Reference Documentation

Core Testing

• ./references/unit-integration-testing.md - Vitest, browser mode, AAA
• ./references/e2e-testing-playwright.md - Fixtures, sharding, selectors
• ./references/playwright-component-testing.md - CT patterns (production-ready)
• ./references/component-testing.md - React/Vue/Angular patterns

Test Infrastructure

• ./references/test-data-management.md - Factories, fixtures, seeding
• ./references/database-testing.md - Testcontainers, transactions
• ./references/ci-cd-testing-workflows.md - GitHub Actions, sharding
• ./references/contract-testing.md - Pact, MSW patterns

Cross-Browser & Mobile

• ./references/cross-browser-checklist.md - Browser/device matrix
• ./references/mobile-gesture-testing.md - Touch, swipe, orientation

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 & Security

• ./references/accessibility-testing.md - WCAG, axe-core
• ./references/security-testing-overview.md - OWASP Top 10
• ./references/security-checklists.md - Auth, API, headers

API & Load

• ./references/api-testing.md - Supertest, GraphQL
• ./references/load-testing-k6.md - k6 patterns

Checklists

• ./references/pre-release-checklist.md - Complete release checklist
• ./references/functional-testing-checklist.md - Feature testing

Scripts

Initialize Playwright Project

node ./scripts/init-playwright.js [--ct] [--dir <path>]

Creates best-practice Playwright setup: config, fixtures, example tests.

Analyze Test Results

node ./scripts/analyze-test-results.js \
  --playwright test-results/results.json \
  --vitest coverage/vitest.json \
  --output markdown

Parses Playwright/Vitest/JUnit results into unified summary.

CI/CD Integration

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