Setup & Installation
npx skills add https://github.com/LambdaTest/agent-skills --skill vitest-skill
https://github.com/LambdaTest/agent-skills/tree/main/vitest-skill
View on GitHubWhat This Skill Does
Generates Vitest unit tests for JavaScript and TypeScript projects. Covers mocking with vi, snapshot testing, React component tests, and in-source testing patterns. Works with the Jest-compatible API, so migration from Jest is straightforward.
Vitest has a different mocking API and config format than Jest, and this skill gets the syntax right without you having to check the docs each time.
When to use it
- Writing unit tests for a Vite-based TypeScript project
- Migrating existing Jest mocks to vi.mock and vi.fn syntax
- Setting up in-source tests alongside production code
- Adding snapshot tests for serialized data or component output
- Testing React components with Testing Library and Vitest