text: import Vue from 'vue';
  import HelloWorld from '@/components/HelloWorld';
  
  describe('Control.vue', () => {
    it('should render correct contents', () => {
      const Constructor = Vue.extend(HelloWorld);
      const vm = new Constructor().$mount();
      expect(vm.$el.querySelector('.hello h1').textContent)
        .toEqual('Welcome to Your Vue.js App');
    });
  });
  