Unit testing for Angular 2 using Jasmine: "Expected spy fails on toHaveBeenCalled" -


as in title test failing on expectation of method have been called.

part of component:

@input('addressformcontrol') addressformcontrol: formcontrol;   public ngoninit() {       this.addressformcontrol           .valuechanges           .debouncetime(500)           .subscribe(this.showaddresslistfound); }

test:

@component({     selector: 'wrapper-form-check-id',     template: `                <div>                     <predictor-list-addresses [addressformcontrol]="formctrl"></predictor-list-addresses>               </div>               ` }) class wrapformcheckidcomponent {     public formctrl: formcontrol = new formcontrol(''); }  fdescribe('form-id', () => {    describe('in predictorlistaddressescomponent', () => {       let fixture: componentfixture<predictorlistaddressescomponent>;       let component: predictorlistaddressescomponent;       let wrapcomponent: wrapformcheckidcomponent;        let mockresponsepredictorretrieveaddress = {};       let mockresponsepredictorfindaddress = {};        let addressservicemock = jasmine.createspyobj('addressservice', ['getlistaddresses', 'getaddressdetails']);       addressservicemock.getlistaddresses.and.returnvalue(observable.of(mockresponsepredictorfindaddress));       addressservicemock.getaddressdetails.and.returnvalue(observable.of(mockresponsepredictorretrieveaddress));        beforeeach( () => {          testbed.configuretestingmodule({                declarations: [                   wrapformcheckidcomponent, predictorlistaddressescomponent, makeitbolddirective                ],                imports     : [reactiveformsmodule],                providers   : [{provide: addressservice, usevalue: addressservicemock}]          });            wrapcomponent = testbed.createcomponent(wrapformcheckidcomponent).componentinstance;          fixture = testbed.createcomponent(predictorlistaddressescomponent);          component = fixture.componentinstance;          component.addressformcontrol = wrapcomponent.formctrl;           spyon(component, 'showaddresslistfound');          fixture.detectchanges();       });        it('should defined', () => {          expect(fixture).tobedefined();       });        it('"addressformcontrol: formcontrol" should listening value changes, calling "showaddresslistfound(value)" right value', () => {             // spyon(component, 'showaddresslistfound').and.returnvalue(observable.of(component.addressformcontrol.value));             wrapcomponent.formctrl.setvalue('street 102');             fixture.whenstable().then(() => {                   expect(component.addressformcontrol.value).tobe('street 102');                   expect(component.showaddresslistfound).tohavebeencalled();             });       });

am doing wrong creating spy 'showaddresslistfound'?

the value check working though.


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