소개
Streamlines the process of building reliable Next.js applications by providing expert guidance on setting up and maintaining comprehensive testing infrastructures. It specializes in the App Router architecture, TypeScript, and shadcn/ui components, helping developers choose between Vitest and Jest, implement React Testing Library for behavioral verification, and orchestrate Playwright for robust end-to-end user flows. By focusing on testing behavior over implementation details and optimizing for deterministic results, it ensures high-quality code and stable CI/CD pipelines.