[focusgroupstart-basic.html]
  [Tab enters at focusgroupstart and exits the focusgroup]
    expected: FAIL

  [Shift+Tab enters at focusgroupstart and exits the focusgroup]
    expected: FAIL

  [focusgroupstart on shadow host: Tab enters at start element]
    expected: FAIL

  [focusgroupstart on shadow host: Shift+Tab enters at start element]
    expected: FAIL

  [focusgroupstart on shadow host: forward arrow navigation works]
    expected: FAIL

  [focusgroupstart on shadow host: backward arrow navigation works]
    expected: FAIL

  [Empty shadow-host item is skipped; Tab enters at focusgroupstart]
    expected: FAIL