This is a testharness.js-based test.
Found 56 FAIL, 0 TIMEOUT, 0 NOTRUN.
[FAIL] AnimationTimeline interface: operation play(optional AnimationEffect?)
  assert_own_property: interface prototype object missing non-static operation expected property "play" missing
[FAIL] AnimationTimeline interface: document.timeline must inherit property "currentTime" with the proper type
  Right-hand side of 'instanceof' is not an object
[FAIL] AnimationTimeline interface: document.timeline must inherit property "play(optional AnimationEffect?)" with the proper type
  assert_inherits: property "play" not found in prototype chain
[FAIL] AnimationTimeline interface: calling play(optional AnimationEffect?) on document.timeline with too few arguments must throw TypeError
  assert_inherits: property "play" not found in prototype chain
[FAIL] Animation interface: attribute trigger
  assert_true: The prototype object must have a property "trigger" expected true got false
[FAIL] Animation interface: new Animation() must inherit property "trigger" with the proper type
  assert_inherits: property "trigger" not found in prototype chain
[FAIL] AnimationEffect interface: attribute parent
  assert_true: The prototype object must have a property "parent" expected true got false
[FAIL] AnimationEffect interface: attribute previousSibling
  assert_true: The prototype object must have a property "previousSibling" expected true got false
[FAIL] AnimationEffect interface: attribute nextSibling
  assert_true: The prototype object must have a property "nextSibling" expected true got false
[FAIL] AnimationEffect interface: operation before(AnimationEffect...)
  assert_own_property: interface prototype object missing non-static operation expected property "before" missing
[FAIL] AnimationEffect interface: operation after(AnimationEffect...)
  assert_own_property: interface prototype object missing non-static operation expected property "after" missing
[FAIL] AnimationEffect interface: operation replace(AnimationEffect...)
  assert_own_property: interface prototype object missing non-static operation expected property "replace" missing
[FAIL] AnimationEffect interface: operation remove()
  assert_own_property: interface prototype object missing non-static operation expected property "remove" missing
[FAIL] AnimationEffect interface: new KeyframeEffect(null, null) must inherit property "parent" with the proper type
  assert_inherits: property "parent" not found in prototype chain
[FAIL] AnimationEffect interface: new KeyframeEffect(null, null) must inherit property "previousSibling" with the proper type
  assert_inherits: property "previousSibling" not found in prototype chain
[FAIL] AnimationEffect interface: new KeyframeEffect(null, null) must inherit property "nextSibling" with the proper type
  assert_inherits: property "nextSibling" not found in prototype chain
[FAIL] AnimationEffect interface: new KeyframeEffect(null, null) must inherit property "before(AnimationEffect...)" with the proper type
  assert_inherits: property "before" not found in prototype chain
[FAIL] AnimationEffect interface: calling before(AnimationEffect...) on new KeyframeEffect(null, null) with too few arguments must throw TypeError
  assert_inherits: property "before" not found in prototype chain
[FAIL] AnimationEffect interface: new KeyframeEffect(null, null) must inherit property "after(AnimationEffect...)" with the proper type
  assert_inherits: property "after" not found in prototype chain
[FAIL] AnimationEffect interface: calling after(AnimationEffect...) on new KeyframeEffect(null, null) with too few arguments must throw TypeError
  assert_inherits: property "after" not found in prototype chain
[FAIL] AnimationEffect interface: new KeyframeEffect(null, null) must inherit property "replace(AnimationEffect...)" with the proper type
  assert_inherits: property "replace" not found in prototype chain
[FAIL] AnimationEffect interface: calling replace(AnimationEffect...) on new KeyframeEffect(null, null) with too few arguments must throw TypeError
  assert_inherits: property "replace" not found in prototype chain
[FAIL] AnimationEffect interface: new KeyframeEffect(null, null) must inherit property "remove()" with the proper type
  assert_inherits: property "remove" not found in prototype chain
[FAIL] GroupEffect interface: existence and properties of interface object
  assert_own_property: self does not have own property "GroupEffect" expected property "GroupEffect" missing
[FAIL] GroupEffect interface object length
  assert_own_property: self does not have own property "GroupEffect" expected property "GroupEffect" missing
[FAIL] GroupEffect interface object name
  assert_own_property: self does not have own property "GroupEffect" expected property "GroupEffect" missing
[FAIL] GroupEffect interface: existence and properties of interface prototype object
  assert_own_property: self does not have own property "GroupEffect" expected property "GroupEffect" missing
[FAIL] GroupEffect interface: existence and properties of interface prototype object's "constructor" property
  assert_own_property: self does not have own property "GroupEffect" expected property "GroupEffect" missing
[FAIL] GroupEffect interface: existence and properties of interface prototype object's @@unscopables property
  assert_own_property: self does not have own property "GroupEffect" expected property "GroupEffect" missing
[FAIL] GroupEffect interface: attribute children
  assert_own_property: self does not have own property "GroupEffect" expected property "GroupEffect" missing
[FAIL] GroupEffect interface: attribute firstChild
  assert_own_property: self does not have own property "GroupEffect" expected property "GroupEffect" missing
[FAIL] GroupEffect interface: attribute lastChild
  assert_own_property: self does not have own property "GroupEffect" expected property "GroupEffect" missing
[FAIL] GroupEffect interface: operation clone()
  assert_own_property: self does not have own property "GroupEffect" expected property "GroupEffect" missing
[FAIL] GroupEffect interface: operation prepend(AnimationEffect...)
  assert_own_property: self does not have own property "GroupEffect" expected property "GroupEffect" missing
[FAIL] GroupEffect interface: operation append(AnimationEffect...)
  assert_own_property: self does not have own property "GroupEffect" expected property "GroupEffect" missing
[FAIL] AnimationNodeList interface: existence and properties of interface object
  assert_own_property: self does not have own property "AnimationNodeList" expected property "AnimationNodeList" missing
[FAIL] AnimationNodeList interface object length
  assert_own_property: self does not have own property "AnimationNodeList" expected property "AnimationNodeList" missing
[FAIL] AnimationNodeList interface object name
  assert_own_property: self does not have own property "AnimationNodeList" expected property "AnimationNodeList" missing
[FAIL] AnimationNodeList interface: existence and properties of interface prototype object
  assert_own_property: self does not have own property "AnimationNodeList" expected property "AnimationNodeList" missing
[FAIL] AnimationNodeList interface: existence and properties of interface prototype object's "constructor" property
  assert_own_property: self does not have own property "AnimationNodeList" expected property "AnimationNodeList" missing
[FAIL] AnimationNodeList interface: existence and properties of interface prototype object's @@unscopables property
  assert_own_property: self does not have own property "AnimationNodeList" expected property "AnimationNodeList" missing
[FAIL] AnimationNodeList interface: attribute length
  assert_own_property: self does not have own property "AnimationNodeList" expected property "AnimationNodeList" missing
[FAIL] AnimationNodeList interface: operation item(unsigned long)
  assert_own_property: self does not have own property "AnimationNodeList" expected property "AnimationNodeList" missing
[FAIL] SequenceEffect interface: existence and properties of interface object
  assert_own_property: self does not have own property "SequenceEffect" expected property "SequenceEffect" missing
[FAIL] SequenceEffect interface object length
  assert_own_property: self does not have own property "SequenceEffect" expected property "SequenceEffect" missing
[FAIL] SequenceEffect interface object name
  assert_own_property: self does not have own property "SequenceEffect" expected property "SequenceEffect" missing
[FAIL] SequenceEffect interface: existence and properties of interface prototype object
  assert_own_property: self does not have own property "SequenceEffect" expected property "SequenceEffect" missing
[FAIL] SequenceEffect interface: existence and properties of interface prototype object's "constructor" property
  assert_own_property: self does not have own property "SequenceEffect" expected property "SequenceEffect" missing
[FAIL] SequenceEffect interface: existence and properties of interface prototype object's @@unscopables property
  assert_own_property: self does not have own property "SequenceEffect" expected property "SequenceEffect" missing
[FAIL] SequenceEffect interface: operation clone()
  assert_own_property: self does not have own property "SequenceEffect" expected property "SequenceEffect" missing
[FAIL] AnimationTrigger interface: attribute timeline
  assert_true: The prototype object must have a property "timeline" expected true got false
[FAIL] AnimationTrigger interface: attribute behavior
  assert_true: The prototype object must have a property "behavior" expected true got false
[FAIL] AnimationTrigger interface: attribute rangeStart
  assert_true: The prototype object must have a property "rangeStart" expected true got false
[FAIL] AnimationTrigger interface: attribute rangeEnd
  assert_true: The prototype object must have a property "rangeEnd" expected true got false
[FAIL] AnimationTrigger interface: attribute exitRangeStart
  assert_true: The prototype object must have a property "exitRangeStart" expected true got false
[FAIL] AnimationTrigger interface: attribute exitRangeEnd
  assert_true: The prototype object must have a property "exitRangeEnd" expected true got false
Harness: the test ran to completion.