Jasmine mock getters, class variables, class functions

service.spec.ts

describe('Service Test', () => {
  let service: SomeService;
  let stubbedService: jasmine.SpyObj<StubbedService>;

  beforeEach(() => {
    TestBed.configureTestingModule({
      providers: [
        {
          provide: StubbedService,
          useValue: {
            ...jasmine.createSpyObj('stubbedService', ['serviceFunc1', 'serviceFunc2']),
            classVariable: undefined,
            classGetter: undefined,
          } as jasmine.SpyObj<StubbedService>,
        },
      ],
    });
    service = TestBed.get(SomeService);
    stubbedService = TestBed.get(StubbedService);
  });

  describe('now we have spies for all StubbedService properties', () => {
    it('spy on all', () => {
      stubbedServie.classVariable = 'some mocked stuff';
      stubbedService.classGetter = 'more mocked stuff';
      stubbedService.serviceFunc1.and.returnValue('mocked function return');
      stubbedService.serviceFunc2.and.returnValue(of('mocked function observale return'));
    });
  });
});