  attribute: "scrollLeft",
    title: "Tests scrollend event for [scrollLeft] behavior:'auto' on subframe."
  },
  {
    key: "root-scrollTop-auto",
    target: document.scrollingElement,
    behavior: "auto",
    attribute: "scrollTop",
    title: "Tests scrollend event for [scrollTop] behavior:'auto' on root."
  },
  {
    key: "root-scrollLeft-auto",
    target: document.scrollingElement,
    behavior: "auto",
    attribute: "scrollLeft",
    title: "Tests scrollend event for [scrollLeft] behavior:'auto'