[pseudo-classes-after-part.html]
  ["::part(mypart):active-view-transition" should be a valid selector]
    expected: FAIL

  ["::part(mypart):active-view-transition-type(mytype)" should be a valid selector]
    expected: FAIL

  ["::part(mypart):dir(ltr)" should be a valid selector]
    expected: FAIL

  ["::part(mypart):future" should be a valid selector]
    expected: FAIL

  ["::part(mypart):in-range" should be a valid selector]
    expected: FAIL

  ["::part(mypart):lang(en)" should be a valid selector]
    expected: FAIL

  ["::part(mypart):modal" should be a valid selector]
    expected: FAIL

  ["::part(mypart):open" should be a valid selector]
    expected: FAIL

  ["::part(mypart):past" should be a valid selector]
    expected: FAIL

  ["::part(mypart):paused" should be a valid selector]
    expected: FAIL

  ["::part(mypart):picture-in-picture" should be a valid selector]
    expected: FAIL

  ["::part(mypart):playing" should be a valid selector]
    expected: FAIL

  ["::part(mypart):xr-overlay" should be a valid selector]
    expected: FAIL