it('User is admin', () => {
        let fixture = TestBed.createComponent(AppComponent); //Create instance of component            
        let appComponent = fixture.componentInstance;
        let appService = fixture.debugElement.injector.get(AppComponentService);
        spyOn(appService, "getUserIsAdminOrNot").and.returnValue(new BehaviorSubject({ FirstName: "siddhartha", IsAdmin: true }).asObservable());