Modern TypeScript/JavaScript testing with Vitest. Fast unit and integration tests, native ESM support, Vite-powered HMR, and comprehensive mocking. Use for testing TS/JS projects.
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Modern TypeScript/JavaScript testing with Vitest. Fast unit and integration tests, native ESM support, Vite-powered HMR, and comprehensive mocking. Use for testing TS/JS projects.
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Stars194
Forks29
LanguageTypeScript
LicenseMIT
📦 Ships with claude-skills
</> SKILL.md
vitest-testing.SKILL.md
---name: vitest-testing
description: Modern TypeScript/JavaScript testing with Vitest. Fast unit and integration tests, native ESM support, Vite-powered HMR, and comprehensive mocking. Use for testing TS/JS projects.
allowed-tools: Bash, Read, Edit, Write, Grep, Glob, TodoWrite
license: MIT
---# Vitest Testing
Expert knowledge for testing JavaScript/TypeScript projects using Vitest - a blazingly fast testing framework powered by Vite.
## Quick Start
### Installation
```bash
# Using Bun (recommended)
bun add -d vitest
# Using npm
npm install -D vitest
```
### Configuration
```typescript
// vitest.config.ts
import { defineConfig } from 'vitest/config'
export default defineConfig({
test: {
globals: true,
environment: 'node', // or 'jsdom'
coverage: {
provider: 'v8',
reporter: ['text', 'json', 'html'],
thresholds: { lines: 80, functions: 80, branches: 80 },
},
include: ['**/*.{test,spec}.{js,ts,jsx,tsx}'],
