element-plus/packages/components/overlay/__tests__/overlay.test.tsx

import { nextTick, ref } from 'vue'
import { mount } from '@vue/test-utils'
import { describe, expect, test } from 'vitest'
import Overlay from '../src/overlay'

const AXIOM = 'Rem is the best girl'

describe('Overlay.vue', () => {
  test('render test', async () => {
    const wrapper = mount(() => <Overlay>{AXIOM}</Overlay>)
    expect(wrapper.text()).toEqual(AXIOM)
    const testClass = 'test-class'
    await wrapper.setProps({
      overlayClass: testClass,
    })

    expect(wrapper.find(`.${testClass}`)).toBeTruthy()
  })

  test('should emit click event', async () => {
    const wrapper = mount(() => <Overlay>{AXIOM}</Overlay>)
    await wrapper.find('.el-overlay').trigger('click')
    expect(wrapper.emitted()).toBeTruthy()
  })

  test('no mask', async () => {
    const mask = ref(true)
    const wrapper = mount(() => <Overlay mask={mask.value}>{AXIOM}</Overlay>)

    const selector = '.el-overlay'
    expect(wrapper.find(selector).exists()).toBe(true)

    mask.value = false

    await nextTick()

    expect(wrapper.find(selector).exists()).toBe(false)

    mask.value = true

    await nextTick()

    expect(wrapper.find(selector).exists()).toBe(true)
  })
})