[box-shadow-spread-valid.html]
  [e.style['box-shadow-spread'\] = "0" should set the property value]
    expected: FAIL

  [e.style['box-shadow-spread'\] = "1px" should set the property value]
    expected: FAIL

  [e.style['box-shadow-spread'\] = "1em" should set the property value]
    expected: FAIL

  [e.style['box-shadow-spread'\] = "-1px" should set the property value]
    expected: FAIL

  [e.style['box-shadow-spread'\] = "calc(1em + 2px)" should set the property value]
    expected: FAIL