fix tests for root with intl, remove unused imports

src/App.js

@@ -64,7 +64,7 @@ export default class StripesCore extends Component {
     return (
       <StrictWrapper>
         <div
-          id="events-container"
+          id="events-portal"
           className={css.eventsContainer}
         />
         <Root

src/RootWithIntl.js

@@ -80,7 +80,7 @@ const RootWithIntl = ({ stripes, token = '', isAuthenticated = false, disableAut
                                 createPortal(<SessionEventContainer
                                   history={history}
                                 />,
-                                document.getElementById('events-container'))}
+                                document.getElementById('events-portal'))}
                               <Switch>
                                 <TitledRoute
                                   name="home"

src/RootWithIntl.test.js

@@ -1,21 +1,7 @@
-/* shhhh, eslint, it's ok. we need "unused" imports for mocks */
-/* eslint-disable no-unused-vars */
-
 import { render, screen } from '@folio/jest-config-stripes/testing-library/react';
 import { Router as DefaultRouter } from 'react-router-dom';
 import { createMemoryHistory } from 'history';
 
-import AuthnLogin from './components/AuthnLogin';
-import {
-  Login,
-  MainNav,
-  MainContainer,
-  ModuleContainer,
-  OverlayContainer,
-  StaleBundleWarning,
-  SessionEventContainer,
-} from './components';
-
 import RootWithIntl from './RootWithIntl';
 import Stripes from './Stripes';
 
@@ -54,6 +40,11 @@ const store = {
 };
 
 describe('RootWithIntl', () => {
+  beforeAll(() => {
+    const eventsPortal = document.createElement('div');
+    eventsPortal.id = 'events-portal';
+    document.body.appendChild(eventsPortal);
+  });
   it('renders login without one of (isAuthenticated, token, disableAuth)', async () => {
     const stripes = new Stripes({ epics: {}, logger: {}, bindings: {}, config: {}, store, discovery: { isFinished: false } });
     await render(<Harness><RootWithIntl stripes={stripes} history={defaultHistory} isAuthenticated={false} /></Harness>);