@Before
public void setUp() throws Exception {
resourceMgrDelegate = mock(ResourceMgrDelegate.class);
conf = new YarnConfiguration();
conf.set(YarnConfiguration.RM_PRINCIPAL, "mapred/host@REALM");
clientCache = new ClientCache(conf, resourceMgrDelegate);
clientCache = spy(clientCache);
yarnRunner = new YARNRunner(conf, resourceMgrDelegate, clientCache);
yarnRunner = spy(yarnRunner);
submissionContext = mock(ApplicationSubmissionContext.class);
doAnswer(