public void succeededAppsCreated(long duration) {
    totalSucceededAppsCreated.add(duration);
    getNewApplicationLatency.add(duration);
  }
@Test
  public void testSucceededAppsCreated() {

    long totalGoodBefore = metrics.getNumSucceededAppsCreated();

    goodSubCluster.getNewApplication(100);

    Assert.assertEquals(totalGoodBefore + 1,
        metrics.getNumSucceededAppsCreated());
    Assert.assertEquals(100, metrics.getLatencySucceededAppsCreated(), 0);

    goodSubCluster.getNewApplication(200);

    Assert.assertEquals(totalGoodBefore + 2,
        metrics.getNumSucceededAppsCreated());
    Assert.assertEquals(150, metrics.getLatencySucceededAppsCreated(), 0);
  }