Angular Plotly test TypeError: Cannot read properties of undefined (reading 'data')

Bắt đầu bằng cách chạy spec GraphComponent đang bị lỗi trong src/app/pages/graph.component.spec.ts và xem xét thiết lập PlotlyViaWindowModule. Truy vết lệnh gọi createFigure của PlotlyComponent trong ngOnDestroy, sử dụng stack trace được báo cáo làm điểm bắt đầu. Được xem là hoàn tất khi test hoàn thành mà không có TypeError, đồng thời component vẫn có thể sử dụng được với ng serve.

i am having an issue running the tests file for my page

TypeError: Cannot read properties of undefined (reading 'data')
TypeError: Cannot read properties of undefined (reading 'data')
    at PlotlyComponent.createFigure (http://localhost:9876/_karma_webpack_/webpack:/node_modules/angular-plotly.js/__ivy_ngcc__/fesm2015/angular-plotly.js.js:285:21)
    at PlotlyComponent.call [as ngOnDestroy] (http://localhost:9876/_karma_webpack_/webpack:/node_modules/angular-plotly.js/__ivy_ngcc__/fesm2015/angular-plotly.js.js:195:29)
    at executeOnDestroys (http://localhost:9876/_karma_webpack_/webpack:/node_modules/@angular/core/fesm2015/core.mjs:6537:32)
    at cleanUpView (http://localhost:9876/_karma_webpack_/webpack:/node_modules/@angular/core/fesm2015/core.mjs:6438:9)
    at destroyViewTree (http://localhost:9876/_karma_webpack_/webpack:/node_modules/@angular/core/fesm2015/core.mjs:6264:21)
    at destroyLView (http://localhost:9876/_karma_webpack_/webpack:/node_modules/@angular/core/fesm2015/core.mjs:6416:9)
    at RootViewRef.destroy (http://localhost:9876/_karma_webpack_/webpack:/node_modules/@angular/core/fesm2015/core.mjs:13512:9)
    at ComponentRef.destroy (http://localhost:9876/_karma_webpack_/webpack:/node_modules/@angular/core/fesm2015/core.mjs:13958:23)
    at ComponentFixture.destroy (http://localhost:9876/_karma_webpack_/webpack:/node_modules/@angular/core/fesm2015/testing.mjs:228:31)
    at UserContext.<anonymous> (http://localhost:9876/_karma_webpack_/webpack:/src/app/pages/graph.component.spec.ts:163:17)

i am using PlotlyViaWindowModule, when i start ng serve the plot is working correctly without any issues but i cant run the test


describe('GraphComponent', () => {
    let component: GraphComponent;
    let fixture: ComponentFixture<GraphComponent>;
    let debugElement: DebugElement;

    beforeEach(waitForAsync(() => {
        TestBed.configureTestingModule({
            declarations: [... , PlotlyComponent], providers: [...PlotlyService,                 { provide: MyPlotService, useClass: myPlotServiceMock},
],   imports: [
                ...
                PlotlyViaWindowModule,]

beforeEach(() => {
        fixture = TestBed.createComponent(GraphComponent);
        component = fixture.componentInstance;
        debugElement = fixture.debugElement;

    
        fixture.detectChanges();
    });

    it('shoud create the app', () => {
        expect(component).toBeTruthy();
    });