@Test
 public void testFromNameInNetBiosFormat() {
   PrincipalId idInNB = PrincipalUtil.fromName(PRINCIPAL_NETBIOS);
   assertEquals(PRINCIPAL_NAME, idInNB.getName());
   assertEquals(PRINCIPAL_DOMAIN, idInNB.getDomain());
 }
 @Test
 public void testFromNameInUPN() {
   PrincipalId idInUPN = PrincipalUtil.fromName(PRINCIPAL_UPN);
   assertEquals(PRINCIPAL_NAME, idInUPN.getName());
   assertEquals(PRINCIPAL_DOMAIN, idInUPN.getDomain());
 }