Forensic-Grade Testing Toolkit
Comprehensive testing infrastructure achieving 95+ Lighthouse scores with zero accessibility violations across 8 browser configurations.
Key Outcomes
Across all performance, accessibility, best practices, and SEO categories
WCAG 2.2 AA compliance with axe-core automated scans
Chrome, Firefox, Safari, Edge + mobile variants with parallel execution
Full CI pipeline including all quality gates
Built a forensic-grade testing system for a portfolio foundation using Playwright for E2E testing and Vitest for unit testing. Implemented 16+ quality gates covering performance (INP p95 ≤ 50ms, LCP < 2.5s), accessibility (WCAG 2.2 AA with axe-core), security (CSP with nonces, Mozilla Observatory A+), and SEO (structured data validation). The toolkit includes 8 browser configurations (Chrome, Firefox, Safari, Edge, mobile) with parallel execution and comprehensive test coverage including contract tests, integration tests, and visual regression testing.
Technical Details
Technical Implementation
The testing infrastructure uses Playwright for E2E testing with 8 browser configurations running in parallel. Vitest handles unit and contract tests with coverage reporting. Quality gates enforce performance SLOs (INP p95 ≤ 50ms, LCP < 2.5s, CLS < 0.1), accessibility standards (WCAG 2.2 AA with zero axe-core violations), security requirements (CSP with nonces, HSTS, frame-ancestors), and SEO validation (JSON-LD schemas, hreflang, Open Graph).
Quality Gates
Implemented 16+ automated quality gates: Performance (Lighthouse CI budgets, web-vitals RUM), Security (Mozilla Observatory A+, CSP validation), Accessibility (axe-core scans, keyboard navigation), SEO (metadata validation, structured data), Privacy (Mode A compliance with 30-day RUM retention). All gates run in CI with fail-fast behavior to prevent regressions.