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Jest

Presets​

Two presets are available — pick the one that matches your test environment.

Node (default)​

// jest.config.js
import preset from '@rtorcato/js-tooling/jest-presets/node/jest-preset'
export default { ...preset }

Or in package.json:

{
  "jest": {
    "preset": "@rtorcato/js-tooling/jest-presets/node/jest-preset"
  }
}

Browser (jsdom)​

// jest.config.js
import preset from '@rtorcato/js-tooling/jest-presets/browser/jest-preset'
export default { ...preset }

When to use Jest vs Vitest​

Prefer Vitest for new projects — it's faster, has native ESM support, and shares Vite's config. Use Jest when you need specific plugins not yet available for Vitest (e.g. jest-axe, snapshot serialisers), or when migrating an existing Jest suite incrementally.