message: Mock service in preparation of creating test cases
diff: @@ -33,17 +33,21 @@ import { MatSnackBarModule } from '@angular/material/snack-bar'
  import { MatTooltipModule } from '@angular/material/tooltip'
  import { of } from 'rxjs'
  +import { TwoFactorAuthService } from '../Services/two-factor-auth-service'
  describe('TwoFactorAuthEnterComponent', () => {
  let component: TwoFactorAuthEnterComponent
  let fixture: ComponentFixture<TwoFactorAuthEnterComponent>
  let userService: any
  + let twoFactorAuthService: any
  beforeEach(waitForAsync(() => {
  userService = jasmine.createSpyObj('UserService', ['login'])
  userService.login.and.returnValue(of({}))
  userService.isLoggedIn = jasmine.createSpyObj('userService.isLoggedIn', ['next'])
  userService.isLoggedIn.next.and.returnValue({})
  + twoFactorAuthService = jasmine.createSpyObj('TwoFactorAuthService', ['verify'])
  + twoFactorAuthService.verify.and.returnValue(of({ }))
  TestBed.configureTestingModule({
  imports: [
  @@ -71,6 +75,7 @@ describe('TwoFactorAuthEnterComponent', () => {
  declarations: [TwoFactorAuthEnterComponent, SearchResultComponent],
  providers: [
  { provide: UserService, useValue: userService },
  + { provide: TwoFactorAuthService, useValue: twoFactorAuthService },
  CookieService,
  WindowRefService
  ]
  