public boolean isDeleted() {
    return bcId == INVALID_INODE_ID;
  }
@Test
  public void testIsDeleted() {
    BlockInfo blockInfo = new BlockInfoContiguous((short) 3);
    BlockCollection bc = Mockito.mock(BlockCollection.class);
    blockInfo.setBlockCollectionId(1000);
    Assert.assertFalse(blockInfo.isDeleted());
    blockInfo.setBlockCollectionId(INVALID_INODE_ID);
    Assert.assertTrue(blockInfo.isDeleted());
  }