MockAnimationPlayer

  
    class MockAnimationPlayer extends NoopAnimationPlayer {  previousStyles: ɵStyleDataMap;  currentSnapshot: ɵStyleDataMap;  override element: any;  override keyframes: ɵStyleDataMap[];  override duration: number;  override delay: number;  override easing: string;  override previousPlayers: any[];  reset(): void;  finish(): void;  destroy(): void;  play(): void;  hasStarted(): boolean;  beforeDestroy(): void;}