[background-position-x-computed.html]
  [Property background-position-x value 'right 10px' computes to 'calc(100% + 10px)']
    expected: FAIL

  [Property background-position-x value 'calc(10px - 0.5em), left -20%, right 10px' computes to '-10px, -20%, calc(100% + 10px)']
    expected: FAIL

  [Property background-position-x value 'center, left, right' computes to '50%, 0%, 100px']
    expected: FAIL

  [Property background-position-x value 'x-start' computes to 'x-start']
    expected: FAIL

  [Property background-position-x value '0.5em, x-start, x-end' computes to '20px, x-start, x-end']
    expected: FAIL

  [Property background-position-x value 'x-end' computes to 'x-end']
    expected: FAIL

  [Property background-position-x value 'calc(10px - 0.5em), -20%, 10px' computes to '-10px']
    expected: FAIL

  [Property background-position-x value 'calc(10px - 0.5em), left -20%, right 10px' computes to '-10px']
    expected: FAIL

  [Property background-position-x value '-20%, 10px' computes to '-20%']
    expected: FAIL

  [Property background-position-x value 'center, left, right' computes to '50%']
    expected: FAIL

  [Property background-position-x value '0.5em, x-start, x-end' computes to '20px']
    expected: FAIL

  [Property background-position-x value 'calc(10px - 0.5em), left -20%, right 10px']
    expected: FAIL

  [Property background-position-x value 'center, left, right']
    expected: FAIL

  [Property background-position-x value '0.5em, x-start, x-end']
    expected: FAIL

  [Property background-position-x value 'x-end']
    expected: FAIL

  [Property background-position-x value 'x-start']
    expected: FAIL

  [Property background-position-x value 'calc(10px - 0.5em), -20%, 10px']
    expected: FAIL

  [Property background-position-x value '-20%, 10px']
    expected: FAIL