shallow-overview.js

import { shallow } from 'vue-test-utils'
import ComponentWithChildren from '@/components/ComponentWithSlots'
import ChildComponent from '@/components/AnotherComponent'

// shallow mount the component
const wrapper = mount(ComponentWithChildren)

// you can still find the child component, but it doesn't render any nodes
const childComponent = wrapper.find(ChildComponent)

// make assertions
expect(childComponent.hasProp('foo', 'bar')).to.equal(true)