Vitest

Quick start

tinkerise add testing

What it detects

The testing module checks for existing test setup by looking for:

Vitest config files: vitest.config.ts/js/mts/mjs
Jest config files: jest.config.js/ts/mjs/cjs
Installed vitest or jest dependencies

If any of these exist, the module is treated as already installed.

What it installs

testing always standardizes on Vitest and performs all of the following:

Installs vitest as a dev dependency
Creates vitest.config.ts
Adds package scripts:
- test: vitest
- test:run: vitest run
Creates starter files:
- tests/sum.ts
- tests/sum.test.ts

File and config changes

vitest.config.ts includes test.include and test.exclude defaults
package.json gets/updates test and test:run scripts
tests/ gets a working function and test so bun run test works immediately

Conflict handling

If vitest.config.*, jest.config.*, or test tooling already exists, detection reports the enhancement as installed. For file-write conflicts in interactive runs, tinkerise shows a diff and allows replace/skip decisions.