[CSSPseudoElement-getBoxQuads.tentative.html]
  [CSSPseudoElement should have getBoxQuads method]
    expected: FAIL

  [getBoxQuads should return an array]
    expected: FAIL

  [getBoxQuads returns DOMQuad for ::before]
    expected: FAIL

  [getBoxQuads with box="border" returns border box dimensions]
    expected: FAIL

  [getBoxQuads with box="content" returns content box dimensions]
    expected: FAIL

  [getBoxQuads with box="padding" returns padding box dimensions]
    expected: FAIL

  [getBoxQuads with box="margin" returns margin box dimensions]
    expected: FAIL

  [getBoxQuads works for ::after pseudo-element]
    expected: FAIL