angular2 testing using jasmine for subscribe method

Question

I have a spec code to test like this

 it(\'login test\', () => {

      const fixture = TestBed.createComponent(component);
      fixture.detectChanges();         


        

Answer 1

You need to return something with a subscribe method, as the component calls subscribe directly from login. A string does not. You could just return an object with a subscribe function and it should work

and.returnValue({ subscribe: () => {} });

Or if you want to pass a real observable, you could

and.returnValue(Observable.of('some value'));

You might need to import rxjs/add/observable/of