angular - how to do unit testing of component with multiple parent routes of ActivatedRoute -


lets have component access parent route this:

ngoninit() {     //todo - ffbzap-25: far ideal solution     this.sub = this.route.parent.parent.parent.params.subscribe(params => {         this.siteid = params["siteid"];         this.loadcontents();         this.loadtypes(this.siteid);     }); }

my issue when run test get

failed: cannot read property 'undefined' of undefined

i not testing route right now, think error should because of line:

  • usevalue: { parent: { parent: { parent: { 'params': observable.from([{ 'siteid': '156' }]) } } } },

here unit-test code:

beforeeach(async(() => {      testbed.configuretestingmodule({         imports: [             httpmodule,             routertestingmodule,             sharedmodule,             bootstrapmodalmodule         ],         declarations: [             contentlistcomponent,         ],         providers: [             siteservice,             userservice,             modal,             overlay,             {                 provide: activatedroute,                 usevalue: { parent: { parent: { parent: { 'params': observable.from([{ 'siteid': '156' }]) } } } },             },             overlayrenderer,             authhttp,             messageservice,         ],         schemas: [no_errors_schema]      }).compilecomponents()         .then(() => {             fixture = testbed.createcomponent(contentlistcomponent);             component = fixture.componentinstance;             siteservice = testbed.get(siteservice);             userservice = testbed.get(userservice);             activatedroute = testbed.get(activatedroute);          }); })); console.log("heuuuyfyyhsiddharths", { parent: { parent: { parent: { 'params': observable.from([{ 'siteid': '11' }]) } } } }) it('should have defined component', () => {     expect(component).tobedefined(); }); it('sholud content-list', async(() => {      spyon(userservice, 'getuser')         .and.returnvalue(observable.of(updatedby));      spyon(siteservice, 'getsitecontents')         .and.returnvalue(observable.of(contentlist));     fixture.detectchanges();     component = new contentlistcomponent(activatedroute, mockmodal, mockrouter, siteservice, userservice);     component.ngoninit();       fixture.whenstable()         .then(() => {             fixture.detectchanges();             return fixture.whenstable();         })         .then(() => {             const totalrows = de.queryall(by.css('tr'));             expect(totalrows.length).toequal(3);         }); })); });

i have tried take reference of following links. satisfactory result how mock activatedroute parent route

testing angular 2 parent route


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