@Override
  public boolean equals(Object o) {
    if (this == o) {
      return true;
    }
    if (!(o instanceof Capacity)) {
      return false;
    }
    Capacity that = (Capacity) o;
    return mTotal == that.mTotal && mUsed == that.mUsed;
  }
@Test
  public void equals() {
    CommonUtils.testEquals(AlluxioMasterInfo.class);
  }