I'm new to angular 2 and unit testing with jasmine, I'm trying to test that my async service is called by my ng-on-init and that the value is set in my componenent
here is my component :
@Component({
selector: 'fragment-overlay',
templateUrl: './fragment-overlay.component.html',
styleUrls: ['./fragment-overlay.component.css']
})
export class FragmentOverlayComponent implements OnInit {
@Input()
fragmentOverlay:FragmentOverlay;
@Input()
index: Number;
fragmentDefinition:FragmentDefinition;
constructor(private fragmentService:FragmentService) {
}
ngOnInit():void {
let fragmentId = this.fragmentOverlay.fragmentId;
this.fragmentService.getFragmentDefinitionByConfigurationId(fragmentId).subscribe(function (fragmentDefinition:FragmentDefinition) {
this.fragmentDefinition = fragmentDefinition;
console.log("blablabla "+fragmentDefinition);
});
}
ngOnChanges(changes) {
if (changes.hasOwnProperty("index") && !changes.index.firstChange ){
console.log(this.fragmentOverlay.fragmentId +"previous "+ changes.index.previousValue +"after "+changes.index.currentValue);
}
}
}
here is my test :
describe('Fragment overlay ', () => {
let comp: FragmentOverlayComponent;
let fixture: ComponentFixture<FragmentOverlayComponent>;
let de: DebugElement;
let el: HTMLElement;
let spy ;
class FragmentServiceMock {
private fragmentDefinitionTest = new FragmentDefinition("id", "label", false, true, [], "location");
getFragmentDefinitionByConfigurationId(id:string):Observable<FragmentDefinition> { return Observable.of(this.fragmentDefinitionTest) }
}
beforeEach(() => {
TestBed.configureTestingModule({
imports: [HttpModule],
declarations: [FragmentOverlayComponent],// declare the test component
providers: [FragmentService, { provide: XHRBackend, useClass: MockBackend },]
})
.compileComponents(); // compile template and css
fixture = TestBed.createComponent(FragmentOverlayComponent);
comp = fixture.componentInstance;
let fragService = fixture.debugElement.injector.get(FragmentService);
let fragmentDefinitionTest = new FragmentDefinition("id", "label", false, true, [], "location");
spy = spyOn(fragService, 'getFragmentDefinitionByConfigurationId')
.and.returnValue(Observable.of(fragmentDefinitionTest));
comp.fragmentOverlay = new FragmentOverlay();
comp.fragmentOverlay.fragmentId = "idFragment";
// query for the title <h1> by CSS element selector
de = fixture.debugElement.query(By.css('.fragment-overlay'));
el = de.nativeElement;
});
it('should get a definition avec init async call resolved', async(() => {
fixture.detectChanges();
fixture.whenStable().then(() => { // wait for async getFragmentDefinitionByConfigurationId
fixture.detectChanges(); // update view with quote
expect(fixture.componentInstance.fragmentDefinition).toBeDefined();
});
}));
it('should show quote after getQuote promise (fakeAsync)', fakeAsync(() => {
fixture.detectChanges();
tick(); // wait for async getQuote
fixture.detectChanges(); // update view with quote
}));
});
expect(fixture.componentInstance.fragmentDefinition).toBeDefined(); --> fail
I've been stuck for a couple of hours, any help would be welcome