  @Test
  public void testGetStoreFreeOfDifferentStorageType() throws Exception {

    DataNodeStorageInfo info1 = new DataNodeStorageInfo("1", "ssd", 1, "1", 1, 1, 1, 1, 1);
    DataNodeStorageInfo info2 = new DataNodeStorageInfo("2", "ssd", 2, "2", 2, 2, 2, 2, 2);

    metaStore.insertDataNodeStorageInfo(info1);
    metaStore.insertDataNodeStorageInfo(info2);

    long free = metaStore.getStoreFreeOfDifferentStorageType("ssd");
    Assert.assertTrue(free == 3);
  }