[modify-around-inline-element-boundary.tentative.html]
  [Selection.modify("move", "right", "character") when "abc[\]  <span>def</span>"]
    expected: FAIL

  [Selection.modify("move", "right", "character") when "abc[\]<span>  def</span>"]
    expected: FAIL

  [Selection.modify("move", "right", "character") when "<span>abc[\]  </span>def"]
    expected: FAIL

  [Selection.modify("move", "right", "character") when "<span>abc[\]</span>  def"]
    expected: FAIL