[ElementInternals-states.html]
  [CustomStateSet behavior of ElementInternals.states: Initial state]
    expected: FAIL

  [CustomStateSet behavior of ElementInternals.states: Exceptions]
    expected: FAIL

  [CustomStateSet behavior of ElementInternals.states: Modifications]
    expected: FAIL

  [Updating a CustomStateSet while iterating it should work]
    expected: FAIL