Testing & Debugging

Automated testing with Vitest and Playwright involves writing unit tests for business logic and end-to-end tests for critical user flows. You start by configuring the environment, adding Vitest unit tests, then implementing Playwright E2E tests.

The best way to debug server actions and API routes is using structured logging, robust try/catch error handling, and detailed validation diagnostics with Zod. These practices speed up issue resolution by providing clear runtime traces.

Yes, Zod can be used for schema validation and error handling during integration testing. It provides detailed validation diagnostics that help identify data structure issues quickly when validating server actions and API routes.

To write end-to-end tests with Playwright, you validate critical user flows across client and server codebases. This ensures your web application's complete user journeys function correctly from start to finish.

Structured logging and error handling are needed from day one to ensure software reliability and speed issue resolution. Implementing these debugging practices early establishes discipline and prevents complex debugging later.

Yes, Vitest works for both client and server codebase testing. It is used to write unit tests for pure business logic and utilities across web applications, ensuring comprehensive code quality coverage.