How to use the @fortawesome/fontawesome-svg-core.library.add function in @fortawesome/fontawesome-svg-core

library.add(faPlus);
library.add(faPencilAlt);
library.add(faBars);
library.add(faHome);
library.add(faThList);
library.add(faUserPlus);
library.add(faRoad);
library.add(faTachometerAlt);
library.add(faHeart);
library.add(faList);
library.add(faBell);
library.add(faTasks);
library.add(faBook);
library.add(faHdd);
library.add(faFlag);
library.add(faWrench);
library.add(faClock);
library.add(faCloud);
library.add(faSignOutAlt);
library.add(faSignInAlt);
library.add(faCalendarAlt);
library.add(faSearch);
library.add(faTrashAlt);
library.add(faAsterisk);
library.add(faCheck);
library.add(faCheckDouble);

// jhipster-needle-add-element-to-vendor - JHipster will add new menu items here

} from '@fortawesome/free-regular-svg-icons';

import { FontAwesomeIcon } from '@fortawesome/vue-fontawesome';

// general
library.add(faBook);
library.add(faSpinner);
library.add(faTimes);
library.add(faAngleRight);
library.add(faAngleLeft);
library.add(faAngleDown);

// nav bar
library.add(faCircle);
library.add(faEnvelope);
library.add(faSignOutAlt);

// side bar
library.add(faTachometerAlt);
library.add(faCube);
library.add(faUser);
library.add(faClone);
library.add(faTag);
library.add(faComments);
library.add(faWrench);

// dashboard
library.add(faUsers);
library.add(faEye);

// login
library.add(faLock);

Vue.component(
        'crud-show-near-items',
        require('./../components/Crud/CrudShowNearItems').default
    );
    Vue.component('vue-ctk-date-time-picker', VueCtkDateTimePicker);
    Vue.component('role-permissions', RolePermissions);
    Vue.component('user-roles', UserRoles);
    Vue.component(
        'dashboard',
        require('./../components/Pages/Dashboard').default
    );

    // FontAwesome
    library.add(far);
    library.add(fas);
    library.add(fab);
    Vue.component('fa-icon', FontAwesomeIcon);

    // Modules
    Vue.use(Vuex);
    Vue.use(BootstrapVue);
    Vue.use(Notifications);
    Vue.use(VModal);
    Vue.use(ClientTable);
    Vue.use(CKEditor);
    Vue.use(BootstrapVue);
    Vue.use(VueI18n);

    // you can set default global options and events when use
    // https://www.npmjs.com/package/vue-codemirror
    Vue.use(
        VueCodemirror /* {

import { library, icon, Icon } from '@fortawesome/fontawesome-svg-core'
import {
  faDatabase, faChartBar,
  faLongArrowAltUp, faLongArrowAltDown,
  faSortAmountUp, faSortAmountDown,
  faAngleDown,
} from '@fortawesome/free-solid-svg-icons'

// https://fontawesome.com/how-to-use/with-the-api/setup/library
library.add(faDatabase)
library.add(faChartBar)
library.add(faLongArrowAltUp)
library.add(faLongArrowAltDown)
library.add(faSortAmountUp)
library.add(faSortAmountDown)
library.add(faAngleDown)

const iDatabase = icon({ prefix: 'fas', iconName: 'database' })
const iChartBar = icon({ prefix: 'fas', iconName: 'chart-bar' })
const iLongArrowAltUp = icon({ prefix: 'fas', iconName: 'long-arrow-alt-up' })
const iLongArrowAltDown = icon({ prefix: 'fas', iconName: 'long-arrow-alt-down' })
const iSortAmountUp = icon({ prefix: 'fas', iconName: 'sort-amount-up' })
const iSortAmountDown = icon({ prefix: 'fas', iconName: 'sort-amount-down' })
const iAngleDown = icon({ prefix: 'fas', iconName: 'angle-down' })

function convert(icon: Icon) {

library.add(faSync);
library.add(faEye);
library.add(faBan);
library.add(faTimes);
library.add(faArrowLeft);
library.add(faSave);
library.add(faPlus);
library.add(faPencilAlt);
library.add(faBars);
library.add(faHome);
library.add(faThList);
library.add(faUserPlus);
library.add(faRoad);
library.add(faTachometerAlt);
library.add(faHeart);
library.add(faList);
library.add(faBell);
library.add(faTasks);
library.add(faBook);
library.add(faHdd);
library.add(faFlag);
library.add(faWrench);
library.add(faClock);
library.add(faCloud);
library.add(faSignOutAlt);
library.add(faSignInAlt);
library.add(faCalendarAlt);
library.add(faSearch);
library.add(faTrashAlt);
library.add(faAsterisk);

// jhipster-needle-add-element-to-vendor - JHipster will add new menu items here

import Dialog from '@/components/dialog/Dialog'
import Menu from '@/components/menu/Menu'
import ImageViewer from '@/components/image-viewer/ImageViewer'
import Scrollbar from '@/components/scrollbar/Scrollbar'
import Toast from '@/components/toast/Toast'
import { library } from '@fortawesome/fontawesome-svg-core'
import blaze from '@/blaze/blaze'
import i18n from '@/utils/i18n'
import moment from 'moment'
import { faArrowLeft, faArrowRight, faChevronDown, faSearch } from '@fortawesome/free-solid-svg-icons'
import { faPaperPlane } from '@fortawesome/free-regular-svg-icons'
import { API_URL } from '@/utils/constants'
import './assets'

const fontawesome = require('@fortawesome/vue-fontawesome')
library.add(faArrowLeft, faArrowRight, faChevronDown, faSearch, faPaperPlane)

Vue.use(VueAxios, axios)
Vue.use(Dialog)
Vue.use(Menu)
Vue.use(Toast)
Vue.use(ImageViewer)
Vue.use(Scrollbar)

Vue.axios.defaults.baseURL = API_URL.HTTP
Vue.axios.defaults.headers.post['Content-Type'] = 'application/json'
Vue.component('font-awesome-icon', fontawesome.FontAwesomeIcon)
Vue.config.productionTip = false
Vue.prototype.$blaze = blaze
moment.locale(navigator.language)
Vue.prototype.$moment = moment
Vue.prototype.$electron = electron

library.add(faTasks);
library.add(faBook);
library.add(faHdd);
library.add(faFlag);
library.add(faWrench);
library.add(faClock);
library.add(faCloud);
library.add(faSignOutAlt);
library.add(faSignInAlt);
library.add(faCalendarAlt);
library.add(faSearch);
library.add(faTrashAlt);
library.add(faAsterisk);
library.add(faGithub);
library.add(faTwitter);
library.add(faComments);
library.add(faBug);
library.add(faUndo);
library.add(faExclamationTriangle);
library.add(faCloudUploadAlt);
library.add(faRocket);
library.add(faObjectGroup);
library.add(faGitlab);
library.add(faCopy);
library.add(faTrash);
library.add(faInfoCircle);
library.add(faCheck);
library.add(faBolt);
library.add(faTimesCircle);
library.add(faChartLine);
library.add(faLink);
library.add(faLightbulb);

library.add(faSnapchat);
  library.add(faSoundcloud);
  library.add(faSpotify);
  library.add(faSquarespace);
  library.add(faStackOverflow);
  library.add(faStackExchange);
  library.add(faSteam);
  library.add(faStrava);
  library.add(faTripadvisor);
  library.add(faTumblr);
  library.add(faTwitch);
  library.add(faTwitter);
  library.add(faVimeo);
  library.add(faWeibo);
  library.add(faWikipediaW);
  library.add(faWordpress);
  library.add(faWordpressSimple);
  library.add(faXbox);
  library.add(faXing);
  library.add(faYahoo);
  library.add(faYelp);
  library.add(faYoutube);

  dom.i2svg();
}

library.add(faSkype);
  library.add(faHackerNewsSquare);
  library.add(faMastodon);
  library.add(faGetPocket);
  library.add(faFlipboard);
  library.add(faEvernote);
  library.add(faTrello);
  library.add(faBuffer);
  library.add(faTumblrSquare);
  library.add(faXingSquare);
  library.add(faLinkedin);

  library.add(fa500px);
  library.add(faAdobe);
  library.add(faAws);
  library.add(faAmazon);
  library.add(faAngellist);
  library.add(faAppStore);
  library.add(faApple);
  library.add(faArtstation);
  library.add(faAtlassian);
  library.add(faBandcamp);
  library.add(faBehance);
  library.add(faBitbucket);
  library.add(faBitcoin);
  library.add(faBlogger);
  library.add(faChrome);
  library.add(faCodepen);
  library.add(faDev);
  library.add(faDeviantart);
  library.add(faDigitalOcean);
  library.add(faDiscord);

import {FontAwesomeModule} from "@fortawesome/angular-fontawesome";
import {RouterTestingModule} from "@angular/router/testing";
import {
  emptyAppState4Test,
  getOneRandomMenu
} from "@tests/helpers";
import {Store, StoreModule} from "@ngrx/store";
import {appReducer, AppState, storeConfig} from "@ofStore/index";
import {of} from "rxjs";
import {configInitialState} from "@ofStates/config.state";
import {map} from "rxjs/operators";
import {By} from "@angular/platform-browser";
import {library} from "@fortawesome/fontawesome-svg-core";
import {faExternalLinkAlt} from "@fortawesome/free-solid-svg-icons";

library.add(faExternalLinkAlt);

describe('MenuLinkComponent', () => {
  let component: MenuLinkComponent;
  let fixture: ComponentFixture;
  let store: Store;
  let emptyAppState: AppState = emptyAppState4Test;

  beforeEach(async(() => {
    TestBed.configureTestingModule({
      imports: [
        RouterTestingModule,
        FontAwesomeModule,
        StoreModule.forRoot(appReducer, storeConfig)
      ],
      declarations: [ MenuLinkComponent ]
    })