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

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();
    });

Commencez par exécuter le spec défaillant de GraphComponent dans src/app/pages/graph.component.spec.ts et examinez la configuration de PlotlyViaWindowModule. Suivez l'appel à createFigure de PlotlyComponent pendant ngOnDestroy, en utilisant la stack trace signalée comme point d'entrée. C'est terminé lorsque le test se termine sans TypeError alors que le composant reste utilisable avec ng serve.