Vitest All In One

Vitest All In One

Vite + Test

Next Generation Testing Framework.
A Vite-native testing framework.

# Vitest requires Vite >=v3.0.0 and Node >=v14.18
$ npm i -D vitest

https://vitest.dev/guide/

https://github.com/vitest-dev/vitest

https://vitest.dev/guide/why.html

Mock Functions

mock & spyOn

// vi ❓vim
import { vi } from 'vitest'

const fn = vi.fn()
fn('hello world')
fn.mock.calls[0] === ['hello world']

const market = {
  getApples: () => 100
}

const getApplesSpy = vi.spyOn(market, 'getApples')
market.getApples()
getApplesSpy.mock.calls.length === 1

https://vitest.dev/api/mock.html

demos

https://stackblitz.com/edit/vitest-dev-vitest-rm2j5o?initialPath=vitest/

https://vueschool.io/lessons/how-to-install-vitest

refs

https://stackoverflow.com/questions/77237009/running-vitest-on-compiled-javascript

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