How do I Mock RouterStateSnapshot for a Router Guard Jasmine test

Question

I have a simple router guard and I am trying to test the canActivate( route: ActivatedRouteSnapshot, state: RouterStateSnapshot ). I can create the ActivatedRouteSn

Answer 1

Based on a previous question I had about Router I tried this...

let mockSnapshot: any;
...
mockSnapshot = jasmine.createSpyObj("RouterStateSnapshot", ['toString']);
...
TestBed.configureTestingModule({
  imports: [RouterTestingModule],
  providers:[
    {provide: RouterStateSnapshot, useValue: mockSnapshot}
  ]
}).compileComponents();
...
let test = guard.canActivate(
  new ActivatedRouteSnapshot(),
  TestBed.get(RouterStateSnapshot)
);

The problem I now have is that I need the toString here mockSnapshot = jasmine.createSpyObj("RouterStateSnapshot", ['toString']);. This is because jasmine createSpyObj requires at least one mocked method. Since I am not testing the side effects of RouterStateSnapshot, this seems like extra work for nothing.