person.setEmail("b");
person.setUri("c");
assertEquals("a", person.getName());
assertEquals("b", person.getEmail());
assertEquals("c", person.getUri().toString());
person = factory.newPerson(Constants.AUTHOR, null);
person.setName("a");
person.setEmail("b");
person.setUri("c");
assertEquals("a", person.getName());
assertEquals("b", person.getEmail());