@Test
public void testConvertCheckpointSignature() {

  CheckpointSignature s = new CheckpointSignature(
      getStorageInfo(NodeType.NAME_NODE), "bpid", 100, 1);
  CheckpointSignatureProto sProto = PBHelper.convert(s);
  CheckpointSignature s1 = PBHelper.convert(sProto);
  assertEquals(s.getBlockpoolID(), s1.getBlockpoolID());
  assertEquals(s.getClusterID(), s1.getClusterID());
  assertEquals(s.getCTime(), s1.getCTime());
  assertEquals(s.getCurSegmentTxId(), s1.getCurSegmentTxId());
  assertEquals(s.getLayoutVersion(), s1.getLayoutVersion());
  assertEquals(s.getMostRecentCheckpointTxId(),
      s1.getMostRecentCheckpointTxId());
  assertEquals(s.getNamespaceID(), s1.getNamespaceID());
}