[Selection-isCollapsed.html]
  [Selection in light tree is not collapsed]
    expected: FAIL

  [Selection in shadow tree is not collapsed]
    expected: FAIL

  [Selection between light and shadow tree is not valid and is collapsed. Composed range is not collapsed]
    expected: FAIL

  [Selection between two shadow trees is not valid and is collapsed. Composed range is not collapsed]
    expected: FAIL