@babystack/vitest

The Vitest integration for babystack — fresh, seeded, isolated real MySQL for your integration tests, with zero test-code changes.

Add three lines to vitest.config.ts and your tests just read process.env.DATABASE_URL, exactly like production. One mysqld container is provisioned once and seeded into a baseline; each Vitest worker gets its own fresh database loaded from it (keyed by VITEST_POOL_ID), so tests run in parallel against isolated real databases.

// vitest.config.ts
import { defineConfig } from 'vitest/config'

export default defineConfig({
  test: {
    globalSetup: '@babystack/vitest/global-setup',
    setupFiles: ['@babystack/vitest/setup'],
    pool: 'forks',
  },
})

pnpm add -D @babystack/vitest   # one package — pulls the engine (core + mysql + docker) transitively

Your babystack.config.ts imports defineConfig from @babystack/vitest (re-exported here, so this is the only package you install for tests). Requires a running Docker engine. For the config format, isolation semantics, and a runnable example, see the babystack repository. Licensed Apache-2.0.