I'm doing a test of a component that uses a signalStore signalStore: export const TemplateStore = signalStore( { providedIn: 'root' }, withState(initialState), withMethods( ( store, templateService = inject(TemplatesService) ) Component: @Component({ selector: 'app-template-list-layout', standalone: true, providers: [TemplateStore], templateUrl: './template-list-layout.component.html', changeDetection: ChangeDetectionStrategy.OnPush, }) export class TemplateListLayoutComponent { templateStore = inject(TemplateStore); My test: beforeEach(() => { TestBed.configureTestingModule({ imports: [TemplateListLayoutComponent], providers: [ { provide: TemplateStore, useValue: { filterTemplates: () => {}, sortTemplates: () => {}, }, }, ], }).compileComponents(); fixture = TestBed.createComponent(TemplateListLayoutComponent); component = fixture.componentInstance; fixture.detectChanges(); }); it('should create', () => { expect(component).toBeTruthy(); }); When I run the test this message is the error: NullInjectorError: R3InjectorError(Standalone[TemplateListLayoutComponent])[TemplatesService -> TemplatesService -> HttpClient -> HttpClient]: NullInjectorError: No provider for HttpClient! Why I'm getting this error if I am mocking it? I've tried different approaches but it doesnt work either... instead of using useValue I tried useClass and the same result. Continue reading...