@Test
public void testAddStorage() throws Exception {

  BlockInfo blockInfo = new BlockInfoContiguous((short) 3);
  final DatanodeStorageInfo storage = DFSTestUtil.createDatanodeStorageInfo(
      "storageID", "127.0.0.1");
  boolean added = blockInfo.addStorage(storage, blockInfo);
  Assert.assertTrue(added);
  Assert.assertEquals(storage, blockInfo.getStorageInfo(0));
}