[MutationObserver-attributes.html]
  type: testharness
  [attributes Element.id: update, no oldValue, mutation]
    expected: FAIL

  [attributes Element.id: update mutation]
    expected: FAIL

  [attributes Element.id: empty string update mutation]
    expected: FAIL

  [attributes Element.id: same value mutation]
    expected: FAIL

  [attributes Element.unknown: IDL attribute no mutation]
    expected: FAIL

  [attributes HTMLInputElement.type: type update mutation]
    expected: FAIL

  [attributes Element.className: new value mutation]
    expected: FAIL

  [attributes Element.className: empty string update mutation]
    expected: FAIL

  [attributes Element.className: same value mutation]
    expected: FAIL

  [attributes Element.className: same multiple values mutation]
    expected: FAIL

  [attributes Element.classList.add: single token addition mutation]
    expected: FAIL

  [attributes Element.classList.add: multiple tokens addition mutation]
    expected: FAIL

  [attributes Element.classList.add: syntax err/no mutation]
    expected: FAIL

  [attributes Element.classList.add: invalid character/no mutation]
    expected: FAIL

  [attributes Element.classList.add: same value mutation]
    expected: FAIL

  [attributes Element.classList.remove: single token removal mutation]
    expected: FAIL

  [attributes Element.classList.remove: multiple tokens removal mutation]
    expected: FAIL

  [attributes Element.classList.remove: missing token removal mutation]
    expected: FAIL

  [attributes Element.classList.toggle: token removal mutation]
    expected: FAIL

  [attributes Element.classList.toggle: token addition mutation]
    expected: FAIL

  [attributes Element.classList.toggle: forced token removal mutation]
    expected: FAIL

  [attributes Element.classList.toggle: forced missing token removal no mutation]
    expected: FAIL

  [attributes Element.classList.toggle: forced existing token addition no mutation]
    expected: FAIL

  [attributes Element.classList.toggle: forced token addition mutation]
    expected: FAIL

  [attributes Element.attributes.value: update mutation]
    expected: FAIL

  [attributes Element.attributes.value: same id mutation]
    expected: FAIL

  [attributes Element.setAttribute: id mutation]
    expected: FAIL

  [attributes Element.setAttribute: same class mutation]
    expected: FAIL

  [attributes Element.setAttribute: classname mutation]
    expected: FAIL

  [attributes Element.removeAttribute: removal mutation]
    expected: FAIL

  [attributes Element.removeAttribute: removal no mutation]
    expected: FAIL

  [childList HTMLInputElement.removeAttribute: type removal mutation]
    expected: FAIL

  [attributes Element.setAttributeNS: creation mutation]
    expected: FAIL

  [attributes Element.setAttributeNS: prefixed attribute creation mutation]
    expected: FAIL

  [attributes Element.removeAttributeNS: removal mutation]
    expected: FAIL

  [attributes Element.removeAttributeNS: removal no mutation]
    expected: FAIL

  [attributes Element.removeAttributeNS: prefixed attribute removal no mutation]
    expected: FAIL

  [attributes/attributeFilter Element.id/Element.className: update mutation]
    expected: FAIL

  [attributes/attributeFilter Element.id/Element.className: multiple filter update mutation]
    expected: FAIL

  [attributeOldValue alone Element.id: update mutation]
    expected: FAIL

  [attributeFilter alone Element.id/Element.className: multiple filter update mutation]
    expected: FAIL

  [childList false: no childList mutation]
    expected: FAIL