Vue.js: What is Vitest in Vue?

1npm install -D vitest @vue/test-utils

1// Counter.spec.ts
2import { describe, it, expect } from "vitest"
3import { mount } from "@vue/test-utils"
4import Counter from "./Counter.vue"
5
6describe("Counter", () => {
7    it("renders correctly", () => {
8        const wrapper = mount(Counter, {
9            props: { initialValue: 5 }
10        })
11        expect(wrapper.text()).toContain("5")
12    })
13    
14    it("increments on click", async () => {
15        const wrapper = mount(Counter)
16        await wrapper.find("button").trigger("click")
17        expect(wrapper.text()).toContain("1")
18    })
19})