Supabase Test – TypeScript-native testing for Supabase and Postgres

Summary: Supabase Test is a TypeScript-native library that provides fast, isolated Postgres environments for testing Supabase projects. It enables instant feedback on RLS policies, authentication, and database logic through quick, repeatable tests that run in under a second.

What it does

It creates isolated Postgres instances per test and offers simple APIs to validate row-level security, authentication flows, and database queries. This replaces slower integration tests and manual dashboard checks with automated, immediate verification.

Who it's for

Developers building Supabase applications who need reliable, fast testing of database logic and security policies.

Why it matters

It accelerates development by providing rapid feedback on critical backend components, ensuring policies and queries work correctly before deployment.