Test graph events for the object connection.
EventType = WebAudio.nodesConnected
contextId : <GraphObjectId>
sourceId : <GraphObjectId>
destinationId : <GraphObjectId>
sourceOutputIndex : 0
destinationInputIndex : 0
EventType = WebAudio.nodesDisconnected
contextId : <GraphObjectId>
sourceId : <GraphObjectId>
destinationId : <GraphObjectId>
sourceOutputIndex : 0
destinationInputIndex : 0
EventType = WebAudio.nodesDisconnected
contextId : <GraphObjectId>
sourceId : <GraphObjectId>
destinationId : null
sourceOutputIndex : 0
destinationInputIndex : 0
EventType = WebAudio.nodesConnected
contextId : <GraphObjectId>
sourceId : <GraphObjectId>
destinationId : <GraphObjectId>
sourceOutputIndex : 1
destinationInputIndex : 4
EventType = WebAudio.nodesDisconnected
contextId : <GraphObjectId>
sourceId : <GraphObjectId>
destinationId : <GraphObjectId>
sourceOutputIndex : 1
destinationInputIndex : 4
EventType = WebAudio.nodeParamConnected
contextId : <GraphObjectId>
sourceId : <GraphObjectId>
destinationId : <GraphObjectId>
sourceOutputIndex : 0
destinationInputIndex : undefined
EventType = WebAudio.nodeParamDisconnected
contextId : <GraphObjectId>
sourceId : <GraphObjectId>
destinationId : <GraphObjectId>
sourceOutputIndex : 0
destinationInputIndex : undefined
EventType = WebAudio.nodeParamConnected
contextId : <GraphObjectId>
sourceId : <GraphObjectId>
destinationId : <GraphObjectId>
sourceOutputIndex : 1
destinationInputIndex : undefined
EventType = WebAudio.nodeParamDisconnected
contextId : <GraphObjectId>
sourceId : <GraphObjectId>
destinationId : <GraphObjectId>
sourceOutputIndex : 1
destinationInputIndex : undefined