Channel serverChannel = _dummyServer.getChildChannel(clientAddr);
ChannelPipeline serverPipeline = serverChannel.getPipeline();
SimpleObjectCaptureHandler objCapture = (SimpleObjectCaptureHandler)serverPipeline.get("3");
Assert.assertTrue(objCapture.waitForMessage(1000, 0));
Object msgObj = objCapture.getMessages().get(0);
Assert.assertTrue(msgObj instanceof HttpRequest);
HttpRequest msgReq = (HttpRequest)msgObj;
Assert.assertTrue(msgReq.getUri().startsWith("/sources")); // now has "?protocolVersion=X" appended