Getting Started

Adding Vitest to Your Project

npm install -D vitest

Writing Tests

// sum.test.js
import { expect, test } from 'vitest'
import { sum } from './sum'

test('adds 1 + 2 to equal 3', () => {
  expect(sum(1, 2)).toBe(3)
})

提示

By default, tests must contain ".test." or ".spec." in their file name.

Configuring Vitest

import { defineConfig, mergeConfig } from 'vitest/config'
import viteConfig from './vite.config.mjs'

export default mergeConfig(viteConfig, defineConfig({
  test: {
    // ...
  }
}))

IDE Integrations

Install from VS Code Marketplace