O método shallowMount()

• Argumentos:

  • {Component} component
  • {Object} options
    • {HTMLElement|string} string
    • {boolean} attachToDocument
    • {Object} context
      • {Array<Component|Object>|Component} children
    • {Object} slots
      • {Array<Component|Object>|Component|String} default
      • {Array<Component|Object>|Component|String} named
    • {Object} mocks
    • {Object|Array<string>} stubs
    • {Vue} localVue

• Retorna: {Wrapper}

• Opções:

Consulte as opções

• Uso:

Tal como o mount, ele cria um Wrapper (envolvedor) que contém o componente Vue montado e renderizado, mas com componentes filhos forjados.

Sem as opções:

import { shallowMount } from '@vue/test-utils'
import Foo from './Foo.vue'

describe('Foo', () => {
  it('renders a div', () => {
    const wrapper = shallowMount(Foo)
    expect(wrapper.contains('div')).toBe(true)
  })
})

Com as opções do Vue:

import { shallowMount } from '@vue/test-utils'
import Foo from './Foo.vue'

describe('Foo', () => {
  it('renders a div', () => {
    const wrapper = shallowMount(Foo, {
      propsData: {
        color: 'red'
      }
    })
    expect(wrapper.props().color).toBe('red')
  })
})

Ligar ao DOM:

import { shallowMount } from '@vue/test-utils'
import Foo from './Foo.vue'

describe('Foo', () => {
  it('renders a div', () => {
    const div = document.createElement('div')
    document.body.appendChild(div)
    const wrapper = shallowMount(Foo, {
      attachTo: div
    })
    expect(wrapper.contains('div')).toBe(true)
    wrapper.destroy()
  })
})

Encaixes padrão e nomeados:

import { shallowMount } from '@vue/test-utils'
import Foo from './Foo.vue'
import Bar from './Bar.vue'
import FooBar from './FooBar.vue'

describe('Foo', () => {
  it('renders a div', () => {
    const wrapper = shallowMount(Foo, {
      slots: {
        default: [Bar, FooBar],
        fooBar: FooBar, // Corresponderá a <slot name="FooBar" />,
        foo: '<div />'
      }
    })
    expect(wrapper.contains('div')).toBe(true)
  })
})

Forjando propriedades globais:

import { shallowMount } from '@vue/test-utils'
import Foo from './Foo.vue'

describe('Foo', () => {
  it('renders a div', () => {
    const $route = { path: 'http://www.example-path.com' }
    const wrapper = shallowMount(Foo, {
      mocks: {
        $route
      }
    })
    expect(wrapper.vm.$route.path).toBe($route.path)
  })
})