cleanup-throw.js

import {render, cleanup} from '@testing-library/vue'
import Vue from 'vue'

test('cleanup re-throws errors from async lifecycle hooks', async () => {
  const err = new Error('foo')
  render({
    async mounted() {
      await new Promise((resolve, reject) => reject(err))
    },
    template: `<h1>Hello World</h1>`,
  })
  // thrown errors are logged redundantly by vue-test-utils injected Vue.config.errorHandler
  // mute console
  const spy = jest.spyOn(console, 'error').mockImplementation(() => {})

  await Vue.nextTick()
  expect(cleanup).toThrow(err)

  // unmute console
  spy.mockReset()
})