Supabase-Test – Fast Isolated Postgres DBs for Testing Supabase RLS

In plain words

Supabase-Test is a testing framework that creates isolated Postgres databases for each test case, designed for validating Supabase row-level security policies. It spins up databases instantly, rolls back automatically after tests, and includes auth simulation through a `.setContext()` method. The tool supports flexible data seeding via SQL, CSV, JSON, or JavaScript, works with Jest, Mocha, and other async test runners, and integrates cleanly with GitHub Actions for continuous integration.

written from the facts on this page · September 2026

From the sources

Build Safer Supabase Apps with supabase-test supabase-test is a fast, TypeScript-native way to test Supabase and Postgres. It gives you isolated Postgres environments per test, instant feedback loops, and simple APIs for validating RLS, auth, and database logic. Instead of clicking around dashboards or running slow integration tests, you write quick, repeatable checks that run in under a second. Change code → hit save → know immediately if your policies and queries work.

In the maker’s words, at launch

Hi HN — we've built a testing framework for Supabase that spins up fast, isolated Postgres databases for each test case. It’s designed to make RLS policies easy to validate with real database state, without global test fixtures or mock auth. Features: - Instant isolated Postgres DBs per test - Automatic rollback…

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