Ocelot-Social/webapp/components/comments/CommentList/CommentList.spec.js

import { config, mount, createLocalVue } from '@vue/test-utils'
import CommentList from '.'
import Empty from '~/components/Empty'
import Vuex from 'vuex'
import Styleguide from '@human-connection/styleguide'
import Filters from '~/plugins/vue-filters'

const localVue = createLocalVue()

localVue.use(Styleguide)
localVue.use(Vuex)
localVue.use(Filters)
localVue.filter('truncate', string => string)

config.stubs['v-popover'] = '<span><slot /></span>'
config.stubs['nuxt-link'] = '<span><slot /></span>'
config.stubs['no-ssr'] = '<span><slot /></span>'

describe('CommentList.vue', () => {
  let mocks
  let store
  let wrapper
  let propsData
  let data

  propsData = {
    post: {
      id: 1,
    },
  }
  store = new Vuex.Store({
    getters: {
      'auth/user': () => {
        return {}
      },
    },
  })
  mocks = {
    $t: jest.fn(),
    $filters: {
      truncate: a => a,
    },
    $apollo: {
      queries: {
        Post: {
          refetch: jest.fn(),
        },
      },
    },
  }
  data = () => {
    return {
      comments: [],
    }
  }

  describe('shallowMount', () => {
    const Wrapper = () => {
      return mount(CommentList, {
        store,
        mocks,
        localVue,
        propsData,
        data,
      })
    }

    beforeEach(() => {
      wrapper = Wrapper()
      wrapper.setData({
        comments: [
          {
            id: 'c1',
            contentExcerpt: 'this is a comment',
          },
        ],
      })
    })

    it('displays a message icon when there are no comments to display', () => {
      expect(Wrapper().findAll(Empty)).toHaveLength(1)
    })

    it('displays a comments counter', () => {
      expect(wrapper.find('span.ds-tag').text()).toEqual('1')
    })

    it('displays comments when there are comments to display', () => {
      expect(wrapper.find('div#comments').text()).toEqual('this is a comment')
    })

    it("refetches a post's comments from the backend", () => {
      wrapper.vm.refetchPostComments()
      expect(mocks.$apollo.queries.Post.refetch).toHaveBeenCalledTimes(1)
    })
  })
})