@Test
 public void testUnitRegistration() throws NamingException {
   Person personA = Person.Create("A");
   Unit unit =
       Unit.Create(
           (short) 9,
           Sentence.Create("I love Chicago", "Я люблю Чикаго"),
           Tapescript.Create(
               9.1F,
               Sentence.Create("Getting around", "На транспорте"),
               "23 9.1.mp3",
               Dialogue.Create(
                   Sentence.Create("Buying a ticket", "Покупка билета"),
                   new Person[] {personA, Person.Create("B")},
                   Replica.Create(personA, Sentence.Create("Hi.", "Привет.")))));
   UnitRegistration unitRegistration =
       (UnitRegistration) context.lookup("java:global/classes/UnitRegistration");
   unitRegistration.register(unit);
 }