@Test
  public void addSetMembers() throws Exception {
    ConceptSetRow conceptRow = new ConceptSetRow();
    conceptRow.name = "New concept";
    conceptRow.conceptClass = "New Class";
    conceptRow.description = "some description";

    List<KeyValue> children = new ArrayList<>();
    children.add(new KeyValue("1", "Child1"));
    children.add(new KeyValue("2", "Child2"));
    conceptRow.children = children;
    Messages persistErrorMessages = conceptSetPersister.persist(conceptRow);
    assertTrue(persistErrorMessages.isEmpty());
    Context.openSession();
    Context.authenticate("admin", "test");
    Concept persistedConcept = conceptService.getConceptByName(conceptRow.name);
    assertNotNull(persistedConcept);
    assertEquals(conceptRow.name, persistedConcept.getName(Context.getLocale()).getName());
    assertEquals(conceptRow.conceptClass, persistedConcept.getConceptClass().getName());
    assertEquals("some description", persistedConcept.getDescription().getDescription());

    assertEquals(2, persistedConcept.getSetMembers().size());
    assertEquals("some description", persistedConcept.getDescription().getDescription());
    assertEquals(0, persistedConcept.getSynonyms().size());
    assertTrue(persistedConcept.isSet());
    Context.flushSession();
    Context.closeSession();
  }