[image-set-parsing.html]
  expected: ERROR
  [e.style['background-image'\] = "image-set(url(\\"example.png\\") -1x)" should not set the property value]
    expected: FAIL

  [e.style['background-image'\] = "-webkit-image-set(url(\\"example.png\\") -1x)" should not set the property value]
    expected: FAIL

  [e.style['background-image'\] = "image-set(url(\\"example.png\\") -3dppx)" should not set the property value]
    expected: FAIL

  [e.style['background-image'\] = "-webkit-image-set(url(\\"example.png\\") -3dppx)" should not set the property value]
    expected: FAIL

  [e.style['background-image'\] = "image-set(url(\\"example.png\\") -96dpi)" should not set the property value]
    expected: FAIL

  [e.style['background-image'\] = "-webkit-image-set(url(\\"example.png\\") -96dpi)" should not set the property value]
    expected: FAIL

  [e.style['background-image'\] = "image-set(url(\\"example.png\\") -113dpcm)" should not set the property value]
    expected: FAIL

  [e.style['background-image'\] = "-webkit-image-set(url(\\"example.png\\") -113dpcm)" should not set the property value]
    expected: FAIL