public void testAMMRTokens() throws Exception {
MiniYARNCluster cluster = new MiniYARNCluster("testMRAMTokens", 1, 1, 1);
YarnClient rmClient = null;
try {
cluster.init(new YarnConfiguration());
cluster.start();
final Configuration yarnConf = cluster.getConfig();
rmClient = YarnClient.createYarnClient();
rmClient.init(yarnConf);
rmClient.start();