Browse QA Skills

Testing GraphQL subscriptions including WebSocket lifecycle, real-time event delivery, authorization on subscriptions, and connection management.

End-to-end testing for React Native apps using Detox with gray-box testing, synchronization, device simulation, and CI integration.

Testing HIPAA compliance for healthcare applications including PHI handling, audit logging, access controls, and data encryption verification.

Web application security testing using BurpSuite for proxy-based interception, scanning, and manual penetration testing of web applications.

Testing PDF generation including layout verification, content accuracy, font embedding, accessibility (PDF/UA), and cross-platform rendering consistency.

Testing API versioning strategies including URL path, header, and query parameter versioning with backward compatibility validation.

Detecting and testing infrastructure drift between desired state and actual state using automated scanning, alerting, and remediation patterns.

Email delivery testing including content verification, rendering across clients, spam score checking, link validation, and transactional email workflow testing.

Safe testing-in-production strategies including feature flags, shadow traffic, canary releases, dark launches, and observability-driven development.

Testing edge computing deployments including latency verification, edge function testing, CDN worker testing, and geo-distributed test execution.

Testing API rate limiting implementations including throttling behavior, burst handling, rate limit headers, and distributed rate limiting patterns.

NestJS application testing with @nestjs/testing, dependency injection mocking, e2e testing with supertest, guard testing, and pipe validation testing.

Visual regression testing with Playwright including screenshot comparison, pixel-diff thresholds, dynamic content masking, and cross-browser visual validation.

Testing API schema evolution patterns including additive changes, field deprecation, type widening, and backward-compatible migration strategies.

Docker-based integration testing with Testcontainers for databases, message queues, cloud services, and custom containers with lifecycle management.

WebSocket testing including connection lifecycle, reconnection logic, message ordering, backpressure handling, and binary frame testing.

Risk-based testing approach for prioritizing test efforts based on business impact, change frequency, complexity, and historical defect patterns.

Cross-platform desktop and application screenshot capture for visual testing, UI verification, and automated visual comparison across macOS, Linux, and Windows.

Building effective smoke test suites for deployment verification including critical path coverage, health endpoints, and rapid feedback testing.