skills.rest
teknokomo
teknokomoOFFICIAL
Explore all skills by this author →
WebsiteGitHub

vitest

Run unit and integration tests for Vite projects with a Jest-compatible API.

25|3|Updated Mar 3, 2025
Search Tags:#typescript#vitest#testing#vite#mocking#unit-testing
One-click install
npx skills add https://github.com/teknokomo/universo-platformo-react --skill vitest-teknokomo
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: vitest
Source: https://github.com/teknokomo/universo-platformo-react/tree/main/.agents/skills/vitest
Command: npx skills add https://github.com/teknokomo/universo-platformo-react --skill vitest-teknokomo

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

Vitest provides a fast, native testing experience aligned with Vite, delivering a Jest-compatible API and first-class support for TypeScript, ESM, and JSX to streamline modern frontend testing.

Core Features & Use Cases

  • Fast, Vite-native test execution with hot module replacement-like updates for quick feedback.
  • Jest-compatible API for familiar test writing, including describe/test/it, mocks, and expectations, with native ESM compatibility.
  • Built-in coverage, snapshots, and mocking utilities that work across projects and CI.
  • Use cases include unit/integration tests for React, Vue, or any Vite-based app, plus library testing and CI workflows.

Quick Start

Create test files alongside your source code and run vitest to execute them.

Frequently Asked Questions about vitest

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I run unit tests for a Vite project with TypeScript and JSX?▼

Vitest runs unit tests for Vite projects by providing a Jest-compatible API with native TypeScript, ESM, and JSX support. You simply create test files alongside source code and execute vitest to run them.

Does Vitest work with Jest mocks and expectations for frontend testing?▼

Vitest includes a Jest-compatible API featuring familiar describe, test, and it blocks, alongside built-in mocking utilities and expectations. This allows developers to write frontend tests using standard Jest patterns without changing syntax.

What's the best way to speed up test feedback loops in Vite-based monorepos?▼

Vitest accelerates test feedback loops in Vite monorepos using hot module replacement-like updates for rapid re-execution. It provides fast, native test execution that integrates directly with Vite's transformation pipeline.

Can I use Vitest for CI workflows with coverage and snapshots?▼

Vitest supports CI workflows by providing built-in coverage and snapshot utilities that operate across projects. It delivers reliable unit and integration testing for Vite-based applications within automated environments.

Why choose Vitest over other testing frameworks for ESM compatibility?▼

Vitest offers native ESM compatibility aligned with Vite, avoiding configuration overhead common in other frameworks. It streamlines modern frontend testing by leveraging Vite's pipeline for zero-config TypeScript and JSX transformation.

Do I need Vite installed to run Vitest tests?▼

Vitest is designed for Vite-based projects, utilizing Vite's pipeline for native ESM, TypeScript, and JSX transformation. It targets development workflows needing rapid feedback and requires a Vite environment to execute tests properly.

Related Skills

Explore More Software Engineering Skills→
mateo-khalilmateo-khalil
1

vitest

Run Vite-integrated unit tests with a Jest-compatible API.

Community
Advanced
mehdicmehdic
21

test-coverage

Generate comprehensive test coverage reports for Python, JavaScript, Go & Java projects.

Community
Intermediate
onmaxonmax

vitest

Run unit and integration tests for Vite projects using Vitest.

Community
Intermediate
compozycompozy
2.5k

vitest

Run Jest-compatible unit tests for Vite projects with ESM, TypeScript, and JSX support.

Official
Intermediate