Harness status: OK

Found 279 tests

267 Pass
6 Fail
6 Optional Feature Unsupported
Pass	BeforeUnloadEvent should be an alias for BeforeUnloadEvent.
Pass	createEvent('BeforeUnloadEvent') should be initialized correctly.
Pass	beforeunloadevent should be an alias for BeforeUnloadEvent.
Pass	createEvent('beforeunloadevent') should be initialized correctly.
Pass	BEFOREUNLOADEVENT should be an alias for BeforeUnloadEvent.
Pass	createEvent('BEFOREUNLOADEVENT') should be initialized correctly.
Pass	Should throw NOT_SUPPORTED_ERR for pluralized legacy event interface "BeforeUnloadEvents"
Pass	CompositionEvent should be an alias for CompositionEvent.
Pass	createEvent('CompositionEvent') should be initialized correctly.
Pass	compositionevent should be an alias for CompositionEvent.
Pass	createEvent('compositionevent') should be initialized correctly.
Pass	COMPOSITIONEVENT should be an alias for CompositionEvent.
Pass	createEvent('COMPOSITIONEVENT') should be initialized correctly.
Pass	Should throw NOT_SUPPORTED_ERR for pluralized legacy event interface "CompositionEvents"
Pass	CustomEvent should be an alias for CustomEvent.
Pass	createEvent('CustomEvent') should be initialized correctly.
Pass	customevent should be an alias for CustomEvent.
Pass	createEvent('customevent') should be initialized correctly.
Pass	CUSTOMEVENT should be an alias for CustomEvent.
Pass	createEvent('CUSTOMEVENT') should be initialized correctly.
Pass	Should throw NOT_SUPPORTED_ERR for pluralized legacy event interface "CustomEvents"
Fail	DeviceMotionEvent should be an alias for DeviceMotionEvent.
Pass	createEvent('DeviceMotionEvent') should be initialized correctly.
Fail	devicemotionevent should be an alias for DeviceMotionEvent.
Pass	createEvent('devicemotionevent') should be initialized correctly.
Fail	DEVICEMOTIONEVENT should be an alias for DeviceMotionEvent.
Pass	createEvent('DEVICEMOTIONEVENT') should be initialized correctly.
Pass	Should throw NOT_SUPPORTED_ERR for pluralized legacy event interface "DeviceMotionEvents"
Fail	DeviceOrientationEvent should be an alias for DeviceOrientationEvent.
Pass	createEvent('DeviceOrientationEvent') should be initialized correctly.
Fail	deviceorientationevent should be an alias for DeviceOrientationEvent.
Pass	createEvent('deviceorientationevent') should be initialized correctly.
Fail	DEVICEORIENTATIONEVENT should be an alias for DeviceOrientationEvent.
Pass	createEvent('DEVICEORIENTATIONEVENT') should be initialized correctly.
Pass	Should throw NOT_SUPPORTED_ERR for pluralized legacy event interface "DeviceOrientationEvents"
Pass	DragEvent should be an alias for DragEvent.
Pass	createEvent('DragEvent') should be initialized correctly.
Pass	dragevent should be an alias for DragEvent.
Pass	createEvent('dragevent') should be initialized correctly.
Pass	DRAGEVENT should be an alias for DragEvent.
Pass	createEvent('DRAGEVENT') should be initialized correctly.
Pass	Should throw NOT_SUPPORTED_ERR for pluralized legacy event interface "DragEvents"
Pass	Event should be an alias for Event.
Pass	createEvent('Event') should be initialized correctly.
Pass	event should be an alias for Event.
Pass	createEvent('event') should be initialized correctly.
Pass	EVENT should be an alias for Event.
Pass	createEvent('EVENT') should be initialized correctly.
Pass	Events should be an alias for Event.
Pass	createEvent('Events') should be initialized correctly.
Pass	events should be an alias for Event.
Pass	createEvent('events') should be initialized correctly.
Pass	EVENTS should be an alias for Event.
Pass	createEvent('EVENTS') should be initialized correctly.
Pass	FocusEvent should be an alias for FocusEvent.
Pass	createEvent('FocusEvent') should be initialized correctly.
Pass	focusevent should be an alias for FocusEvent.
Pass	createEvent('focusevent') should be initialized correctly.
Pass	FOCUSEVENT should be an alias for FocusEvent.
Pass	createEvent('FOCUSEVENT') should be initialized correctly.
Pass	Should throw NOT_SUPPORTED_ERR for pluralized legacy event interface "FocusEvents"
Pass	HashChangeEvent should be an alias for HashChangeEvent.
Pass	createEvent('HashChangeEvent') should be initialized correctly.
Pass	hashchangeevent should be an alias for HashChangeEvent.
Pass	createEvent('hashchangeevent') should be initialized correctly.
Pass	HASHCHANGEEVENT should be an alias for HashChangeEvent.
Pass	createEvent('HASHCHANGEEVENT') should be initialized correctly.
Pass	Should throw NOT_SUPPORTED_ERR for pluralized legacy event interface "HashChangeEvents"
Pass	HTMLEvents should be an alias for Event.
Pass	createEvent('HTMLEvents') should be initialized correctly.
Pass	htmlevents should be an alias for Event.
Pass	createEvent('htmlevents') should be initialized correctly.
Pass	HTMLEVENTS should be an alias for Event.
Pass	createEvent('HTMLEVENTS') should be initialized correctly.
Pass	KeyboardEvent should be an alias for KeyboardEvent.
Pass	createEvent('KeyboardEvent') should be initialized correctly.
Pass	keyboardevent should be an alias for KeyboardEvent.
Pass	createEvent('keyboardevent') should be initialized correctly.
Pass	KEYBOARDEVENT should be an alias for KeyboardEvent.
Pass	createEvent('KEYBOARDEVENT') should be initialized correctly.
Pass	Should throw NOT_SUPPORTED_ERR for pluralized legacy event interface "KeyboardEvents"
Pass	MessageEvent should be an alias for MessageEvent.
Pass	createEvent('MessageEvent') should be initialized correctly.
Pass	messageevent should be an alias for MessageEvent.
Pass	createEvent('messageevent') should be initialized correctly.
Pass	MESSAGEEVENT should be an alias for MessageEvent.
Pass	createEvent('MESSAGEEVENT') should be initialized correctly.
Pass	Should throw NOT_SUPPORTED_ERR for pluralized legacy event interface "MessageEvents"
Pass	MouseEvent should be an alias for MouseEvent.
Pass	createEvent('MouseEvent') should be initialized correctly.
Pass	mouseevent should be an alias for MouseEvent.
Pass	createEvent('mouseevent') should be initialized correctly.
Pass	MOUSEEVENT should be an alias for MouseEvent.
Pass	createEvent('MOUSEEVENT') should be initialized correctly.
Pass	MouseEvents should be an alias for MouseEvent.
Pass	createEvent('MouseEvents') should be initialized correctly.
Pass	mouseevents should be an alias for MouseEvent.
Pass	createEvent('mouseevents') should be initialized correctly.
Pass	MOUSEEVENTS should be an alias for MouseEvent.
Pass	createEvent('MOUSEEVENTS') should be initialized correctly.
Pass	StorageEvent should be an alias for StorageEvent.
Pass	createEvent('StorageEvent') should be initialized correctly.
Pass	storageevent should be an alias for StorageEvent.
Pass	createEvent('storageevent') should be initialized correctly.
Pass	STORAGEEVENT should be an alias for StorageEvent.
Pass	createEvent('STORAGEEVENT') should be initialized correctly.
Pass	Should throw NOT_SUPPORTED_ERR for pluralized legacy event interface "StorageEvents"
Pass	SVGEvents should be an alias for Event.
Pass	createEvent('SVGEvents') should be initialized correctly.
Pass	svgevents should be an alias for Event.
Pass	createEvent('svgevents') should be initialized correctly.
Pass	SVGEVENTS should be an alias for Event.
Pass	createEvent('SVGEVENTS') should be initialized correctly.
Pass	TextEvent should be an alias for TextEvent.
Pass	createEvent('TextEvent') should be initialized correctly.
Pass	textevent should be an alias for TextEvent.
Pass	createEvent('textevent') should be initialized correctly.
Pass	TEXTEVENT should be an alias for TextEvent.
Pass	createEvent('TEXTEVENT') should be initialized correctly.
Pass	Should throw NOT_SUPPORTED_ERR for pluralized legacy event interface "TextEvents"
Pass	UIEvent should be an alias for UIEvent.
Pass	createEvent('UIEvent') should be initialized correctly.
Pass	uievent should be an alias for UIEvent.
Pass	createEvent('uievent') should be initialized correctly.
Pass	UIEVENT should be an alias for UIEvent.
Pass	createEvent('UIEVENT') should be initialized correctly.
Pass	UIEvents should be an alias for UIEvent.
Pass	createEvent('UIEvents') should be initialized correctly.
Pass	uievents should be an alias for UIEvent.
Pass	createEvent('uievents') should be initialized correctly.
Pass	UIEVENTS should be an alias for UIEvent.
Pass	createEvent('UIEVENTS') should be initialized correctly.
Optional Feature Unsupported	TouchEvent should be an alias for TouchEvent.
Optional Feature Unsupported	createEvent('TouchEvent') should be initialized correctly.
Optional Feature Unsupported	touchevent should be an alias for TouchEvent.
Optional Feature Unsupported	createEvent('touchevent') should be initialized correctly.
Optional Feature Unsupported	TOUCHEVENT should be an alias for TouchEvent.
Optional Feature Unsupported	createEvent('TOUCHEVENT') should be initialized correctly.
Pass	Should throw NOT_SUPPORTED_ERR for pluralized legacy event interface "TouchEvents"
Pass	Should throw NOT_SUPPORTED_ERR for unrecognized arguments
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "AnimationEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "AnimationEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "AnimationPlaybackEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "AnimationPlaybackEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "AnimationPlayerEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "AnimationPlayerEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "ApplicationCacheErrorEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "ApplicationCacheErrorEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "AudioProcessingEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "AudioProcessingEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "AutocompleteErrorEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "AutocompleteErrorEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "BeforeInstallPromptEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "BeforeInstallPromptEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "BlobEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "BlobEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "ClipboardEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "ClipboardEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "CloseEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "CloseEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "CommandEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "CommandEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "DataContainerEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "DataContainerEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "ErrorEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "ErrorEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "ExtendableEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "ExtendableEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "ExtendableMessageEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "ExtendableMessageEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "FetchEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "FetchEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "FontFaceSetLoadEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "FontFaceSetLoadEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "GamepadEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "GamepadEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "GeofencingEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "GeofencingEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "IDBVersionChangeEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "IDBVersionChangeEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "InstallEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "InstallEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "KeyEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "KeyEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "MIDIConnectionEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "MIDIConnectionEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "MIDIMessageEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "MIDIMessageEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "MediaEncryptedEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "MediaEncryptedEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "MediaKeyEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "MediaKeyEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "MediaKeyMessageEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "MediaKeyMessageEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "MediaQueryListEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "MediaQueryListEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "MediaStreamEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "MediaStreamEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "MediaStreamTrackEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "MediaStreamTrackEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "MouseScrollEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "MouseScrollEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "MutationEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "MutationEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "NotificationEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "NotificationEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "NotifyPaintEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "NotifyPaintEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "OfflineAudioCompletionEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "OfflineAudioCompletionEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "OrientationEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "OrientationEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "PageTransition"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "PageTransitions"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "PageTransitionEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "PageTransitionEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "PointerEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "PointerEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "PopStateEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "PopStateEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "PopUpEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "PopUpEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "PresentationConnectionAvailableEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "PresentationConnectionAvailableEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "PresentationConnectionCloseEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "PresentationConnectionCloseEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "ProgressEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "ProgressEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "PromiseRejectionEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "PromiseRejectionEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "PushEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "PushEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "RTCDTMFToneChangeEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "RTCDTMFToneChangeEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "RTCDataChannelEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "RTCDataChannelEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "RTCIceCandidateEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "RTCIceCandidateEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "RelatedEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "RelatedEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "ResourceProgressEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "ResourceProgressEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "SVGEvent"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "SVGZoomEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "SVGZoomEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "ScrollAreaEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "ScrollAreaEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "SecurityPolicyViolationEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "SecurityPolicyViolationEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "ServicePortConnectEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "ServicePortConnectEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "ServiceWorkerMessageEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "ServiceWorkerMessageEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "SimpleGestureEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "SimpleGestureEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "SpeechRecognitionError"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "SpeechRecognitionErrors"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "SpeechRecognitionEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "SpeechRecognitionEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "SpeechSynthesisEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "SpeechSynthesisEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "SyncEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "SyncEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "TimeEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "TimeEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "TrackEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "TrackEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "TransitionEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "TransitionEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "WebGLContextEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "WebGLContextEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "WebKitAnimationEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "WebKitAnimationEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "WebKitTransitionEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "WebKitTransitionEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "WheelEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "WheelEvents"
Pass	Should throw NOT_SUPPORTED_ERR for non-legacy event interface "XULCommandEvent"
Pass	Should throw NOT_SUPPORTED_ERR for pluralized non-legacy event interface "XULCommandEvents"