Fastify - HelpMeTest

Testing

Fastify JWT Auth Testing: Protected Routes, Token Refresh, and RBAC

Authentication bugs are some of the most costly bugs to ship. Testing fastify-jwt means verifying that protected routes reject unauthenticated requests, that expired tokens fail gracefully, that the refresh flow issues new tokens correctly, and that RBAC rules enforce role boundaries. This post covers all four, with test patterns

Testing

Fastify TypeScript + Zod Testing: Type-Safe Route and Schema Validation

Combining Fastify with TypeScript and Zod gives you end-to-end type safety from the HTTP layer down to your database. But that safety only holds if you test it. This post covers how to verify that Zod schemas reject malformed requests, how to assert on validation error shapes, and

Testing

Fastify Plugin Testing: Lifecycle Hooks, Decorators, and inject()

Fastify's plugin system is one of its best features — and one of the trickier things to test properly. This post covers how to use inject() for in-process route testing, how to verify lifecycle hooks fire in the right order, and how to assert that decorators are registered

Testing

Fastify Testing: A Complete Guide with Code Examples

Fastify is one of the fastest Node.js web frameworks, and it has excellent built-in testing support through fastify.inject(). Most Fastify teams never get past console.log debugging. Here's how to build a proper Fastify test suite. Fastify's Testing Advantage Fastify was designed to