[gap-shorthand.html]
  [e.style['gap'\] = "normal" should set column-gap]
    expected: FAIL

  [e.style['gap'\] = "normal" should set row-gap]
    expected: FAIL

  [e.style['gap'\] = "normal" should not set unrelated longhands]
    expected: FAIL

  [e.style['gap'\] = "10px 20%" should set column-gap]
    expected: FAIL

  [e.style['gap'\] = "10px 20%" should set row-gap]
    expected: FAIL

  [e.style['gap'\] = "10px 20%" should not set unrelated longhands]
    expected: FAIL

  [e.style['gap'\] = "10px normal" should set column-gap]
    expected: FAIL

  [e.style['gap'\] = "10px normal" should set row-gap]
    expected: FAIL

  [e.style['gap'\] = "10px normal" should not set unrelated longhands]
    expected: FAIL

  [e.style['gap'\] = "normal calc(20% + 10px)" should set column-gap]
    expected: FAIL

  [e.style['gap'\] = "normal calc(20% + 10px)" should set row-gap]
    expected: FAIL

  [e.style['gap'\] = "normal calc(20% + 10px)" should not set unrelated longhands]
    expected: FAIL