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