@Test
public void testConvertNamenodeRegistration() {

  StorageInfo info = getStorageInfo(NodeType.NAME_NODE);
  NamenodeRegistration reg = new NamenodeRegistration("address:999",
      "http:1000", info, NamenodeRole.NAMENODE);
  NamenodeRegistrationProto regProto = PBHelper.convert(reg);
  NamenodeRegistration reg2 = PBHelper.convert(regProto);
  assertEquals(reg.getAddress(), reg2.getAddress());
  assertEquals(reg.getClusterID(), reg2.getClusterID());
  assertEquals(reg.getCTime(), reg2.getCTime());
  assertEquals(reg.getHttpAddress(), reg2.getHttpAddress());
  assertEquals(reg.getLayoutVersion(), reg2.getLayoutVersion());
  assertEquals(reg.getNamespaceID(), reg2.getNamespaceID());
  assertEquals(reg.getRegistrationID(), reg2.getRegistrationID());
  assertEquals(reg.getRole(), reg2.getRole());
  assertEquals(reg.getVersion(), reg2.getVersion());
}