Trying to do the Snapshot test with Jest in angular 10 and test application is failed expect(received).toMatchSnapshot() Snapshot name: `DestinationComponent Should Match Snapshot 1` - Snapshot - 5 + Received + 5 @@ -12,15 +12,15 @@ formGroupDirective={[Function FormGroupDirective]} index="0" listSvg={[Function Object]} loading={[Function Boolean]} ngForm={[Function ElementRef]} - onCancelled={[Function EventEmitter]} - onLoaded={[Function EventEmitter]} - onServerError={[Function EventEmitter]} - onSubmitted={[Function EventEmitter]} - onValidationError={[Function EventEmitter]} + onCancelled={[Function EventEmitter_]} + onLoaded={[Function EventEmitter_]} + onServerError={[Function EventEmitter_]} + onSubmitted={[Function EventEmitter_]} + onValidationError={[Function EventEmitter_]} prefilledActions={[Function Object]} router={[Function Router]} sessionMapApi={[Function Object]} sub={[Function Subscriber]} submitted="false" 73 | 74 | it('Should Match Snapshot', async () => { > 75 | (expect(fixture) as any).toMatchSnapshot(); | ^ 76 | }); 77 | }); 78 | at src/app/pages/destination/destination.component.spec.ts:75:30 at node_modules/tslib/tslib.js:114:75 at new ZoneAwarePromise (node_modules/zone.js/dist/zone.js:913:33) at Object.__awaiter (node_modules/tslib/tslib.js:110:16) at src/app/pages/destination/destination.component.spec.ts:74:42 at ZoneDelegate.invoke (node_modules/zone.js/dist/zone.js:386:30) at ProxyZoneSpec.onInvoke (node_modules/zone.js/dist/proxy.js:117:43) at ZoneDelegate.invoke (node_modules/zone.js/dist/zone.js:385:36) at Zone.run (node_modules/zone.js/dist/zone.js:143:47) date-selection.component.spec.ts describe('DateSelectionComponent', () => { let component: DateSelectionComponent; let fixture: ComponentFixture<DateSelectionComponent>; beforeEach(async(() => { TestBed.configureTestingModule({ declarations: [DateSelectionComponent, SafePipe], imports: [ SharedModule, NgReduxTestingModule, RouterTestingModule.withRoutes([]) ], providers: [ { provide: PageAPIActions, useValue: { setPageState() { } } } ] }) .compileComponents(); })); beforeEach(() => { fixture = TestBed.createComponent(DateSelectionComponent); component = fixture.componentInstance; Object.defineProperties(component, { page$: { value: of('value'), writable: true }, page: { value: { destination: 'value' }, writable: true }, startDate: { value: new NgbDate(2019, 2, 27), writable: true }, minDate: { value: new NgbDate(2019, 2, 27), writable: true } }); fixture.detectChanges(); }); it('should create', () => { expect(component).toBeTruthy(); }); it('Should Match Snapshot', async () => { (expect(fixture) as any).toMatchSnapshot(); }); }); I can see the .snap file is created, I am new to the jest unit testing, can anyone please help me what I am doing wrong, not able to find out the mistake Continue reading...