Function panels

packages/core/test/acceptance/animation_spec.ts:2678–2678

()

      tickAnimationFrames(1);

      const panels = () => Array.from(fixture.nativeElement.querySelectorAll('.panel'));
      const panelByText = (text: string) =>
        panels().find((el) => (el as HTMLElement).textContent?.includes(text)) as
          | HTMLElement