dagPlan = createTestDAGPlan();
dispatcher = new DrainDispatcher();
fsTokens = new Credentials();
appContext = mock(AppContext.class);
historyEventHandler = mock(HistoryEventHandler.class);
aclManager = new ACLManager("amUser");
doReturn(conf).when(appContext).getAMConf();
doReturn(appAttemptId).when(appContext).getApplicationAttemptId();
doReturn(appAttemptId.getApplicationId()).when(appContext).getApplicationID();
doReturn(dagId).when(appContext).getCurrentDAGID();
doReturn(historyEventHandler).when(appContext).getHistoryHandler();