[selectmenu-events.tentative.html]
  [Button controller code should not run if the click event is preventDefaulted.]
    expected: FAIL

  [Listbox controller code should not run if the click event is preventDefaulted.]
    expected: FAIL

  [<selectmenu> should fire input and change events when new option is selected]
    expected: FAIL

  [<selectmenu> should fire input and change events even when new selected option has the same value as the old]
    expected: FAIL

  [<selectmenu> should fire input and change events when option in listbox is clicked]
    expected: FAIL
