withSettings().extraInterfaces(Initialisable.class));
((Initialisable) listener).initialise();
FlowConstruct flowConstruct = mock(FlowConstruct.class);
HttpCallbackFactory callbackFactory = new DefaultHttpCallbackFactory();
this.callback = (DefaultHttpCallback) callbackFactory.createCallback(adapter, "(.)",
fetchMessageProcessor, listener, muleContext, flowConstruct);
this.callback.start();
verify(((Initialisable) listener)).initialise();