(java) Listen To Websocket Messages With Htmlunit

I am trying to listen to websocket messages on a particular page. It seems like HtmlUnit has support for WebSockets, but I can't find any documentation/tutorial or even an answer

Solution 1:

As of now, WebSocket is supported only from the the JavaScript side by this class, and there is no API from HtmlUnit to control it.

The current implementation is basic, I will see if there is a way to intercept the traffic from Jetty Websocket client, it can be added to the public API.

Update:

WebClient now has getInternals().addListener(). Once the listener.created(WebSocket) is called, you should invoke webSocket.setWebSocketListener() with the WebSocketListener.

Test case is here.

This feature is included in the latest build.