@Test
public void testAppsXML() throws JSONException, Exception {
rm.start();
MockNM amNodeManager = rm.registerNode("127.0.0.1:1234", 2048);
RMApp app1 = rm.submitApp(1024, "testwordcount", "user1");
amNodeManager.nodeHeartbeat(true);
WebResource r = resource();
ClientResponse response = r.path("ws").path("v1").path("cluster")
.path("apps").accept(MediaType.APPLICATION_XML)
.get(ClientResponse.class);
assertEquals(MediaType.APPLICATION_XML_TYPE, response.getType());