firefox/testing/web-platform/meta/css/css-text/parsing/text-spacing-trim-valid.html.ini

[text-spacing-trim-valid.html]
  [e.style['text-spacing-trim'\] = "auto" should set the property value]
    expected: FAIL

  [e.style['text-spacing-trim'\] = "space-all" should set the property value]
    expected: FAIL

  [e.style['text-spacing-trim'\] = "space-first" should set the property value]
    expected: FAIL

  [e.style['text-spacing-trim'\] = "trim-all" should set the property value]
    expected: FAIL

  [e.style['text-spacing-trim'\] = "normal" should set the property value]
    expected: FAIL

  [e.style['text-spacing-trim'\] = "trim-start" should set the property value]
    expected: FAIL

  [e.style['text-spacing-trim'\] = "trim-both" should set the property value]
    expected: FAIL