JSFServerSession server = jsfSession.getJSFServerSession();
JSFClientSession client = jsfSession.getJSFClientSession();
RichFacesClient ajaxClient = new RichFacesClient(client);
ajaxClient.setInputNumberSpinner("spinner1", "44");
ajaxClient.clickInputNumberSpinnerUp("spinner1");
client.click("submit");
String value = (String)server.getComponentValue("spinner1");
assertEquals("45", value);