Migrations

Database

Database Migration Testing: Rollback Verification, Data Integrity, and Zero-Downtime Patterns

Untested migrations are one of the highest-risk deployments in software engineering — a bad migration can corrupt production data in seconds with no undo. This post covers a systematic approach to testing forward migrations, rollback paths, data integrity invariants, and zero-downtime patterns like expand/contract, all using TestContainers so

Database Testing

Testing Database Migrations: Flyway, Liquibase, Alembic, and Prisma Migrate

Database migrations are the most dangerous deployments you'll make. A bad migration can corrupt data, lock tables, or bring down production — and rollbacks are often impossible once users interact with the new schema. This guide covers how to test migrations thoroughly across the four most popular migration tools.