element-ui/test/unit/specs/cascader.spec.js

import { createTest, destroyVM } from '../util';
import Cascader from 'packages/cascader';

describe('Cascader', () => {
  let vm;
  afterEach(() => {
    destroyVM(vm);
  });

  it('create', () => {
    vm = createTest(Cascader, true);
    expect(vm.$el).to.exist;
  });
});