Implement Vitest unit and integration tests with Jest-compatible APIs.
npx skills add https://github.com/junevm/avtoolz --skill vitest-junevm
Please help me install this Agent Skill. Skill: vitest Source: https://github.com/junevm/avtoolz/tree/main/.agents/skills/vitest Command: npx skills add https://github.com/junevm/avtoolz --skill vitest-junevm
Vitest helps developers run reliable unit tests quickly in modern projects, reducing slow feedback loops and improving consistency with Jest-style APIs.
test/it, describe/suite, and Jest-style matchers via expect.vi for mocking, spying, fake timers, and environment/global stubbing.test.concurrent), filtering (--tags, name/file patterns), projects/workspaces, and sharding-friendly workflows.Ask the AI to generate a Vitest unit test that uses a mocked module with vi.mock and asserts behavior with expect.
High-intent search queries and answers about installing and using this skill.
You can write unit tests for a Vite project using Vitest, which provides Jest-compatible `test`, `describe`, and `expect` ergonomics while natively leveraging Vite's transformation pipeline for fast reruns and consistent module handling.
The best way to mock modules and control timers is using Vitest's built-in `vi` utilities, which provide deterministic mocking, spying, fake timers, and environment stubbing for your JavaScript and TypeScript test suites.
Yes, Vitest supports Vite-native transforms alongside built-in code coverage reporting and snapshot testing, allowing you to utilize inline, file, and file snapshots to track component output changes.
Vitest supports concurrency through `test.concurrent` and provides filtering capabilities using `--tags`, name patterns, and file patterns to manage large test suites effectively.
You can configure multiple test environments in a monorepo using Vitest's projects and workspaces support, which allows sharding-friendly workflows and configurable environments across different packages.
trystan2kConfigure Vitest for JavaScript and TypeScript projects with Jest-compatible APIs.
GabeujinExecute pytest tests with coverage and generate annotated reports of uncovered lines.
ngxtmAnalyze React application performance, debug hooks, and optimize builds.
vladkeslerAutomate standardized Jest and Vitest testing patterns for JavaScript and TypeScript projects.