[animation-duration-auto.tentative.html]
  [A value of auto can be specified for animation-duration]
    expected: FAIL

  [e.style['animation-duration'\] = "auto" should set the property value]
    expected: FAIL

  [Property animation-duration value 'auto']
    expected: FAIL

  [e.style['animation'\] = "auto cubic-bezier(0, -2, 1, 3) -3s 4 reverse both paused anim" should set the property value]
    expected: FAIL

  [Property animation value 'auto cubic-bezier(0, -2, 1, 3) -3s 4 reverse both paused anim']
    expected: FAIL