Fixture for debugging and testing a component.
abstract class ComponentFixture { debugElement: DebugElement; componentInstance: T; nativeElement: any; elementRef: ElementRef<any>; changeDetectorRef: ChangeDetectorRef; ngZone: NgZone; override componentRef: ComponentRef<T>; abstract detectChanges(checkNoChanges?: boolean): void; checkNoChanges(): void; abstract autoDetectChanges(autoDetect?: boolean): void; isStable(): boolean; whenStable(): Promise<any>; getDeferBlocks(): Promise<DeferBlockFixture[]>; whenRenderingDone(): Promise<any>; destroy(): void;}