@Test
 public void testNonIndexableObjectUpdateMessage() throws Exception {
   String id = "/test";
   indexerGroup.onMessage(
       createUnindexableMessage(
           REPOSITORY_NAMESPACE + EventType.valueOf(NODE_ADDED).toString(), id));
   verify(indexer, never()).update(anyString(), any());
 }
 @Test
 public void testRDFIndexablePropertyUpdateMessage() throws Exception {
   when(indexer.getIndexerType()).thenReturn(Indexer.IndexerType.RDF);
   String id = "/test/dc:title";
   indexerGroup.onMessage(
       createIndexablePropertyMessage(
           REPOSITORY_NAMESPACE + EventType.valueOf(PROPERTY_CHANGED).toString(), id));
   verify(indexer, atLeastOnce()).update(anyString(), any());
 }
 @Test
 public void testNamedFieldsIndexableObjectUpdateMessage() throws Exception {
   when(indexer.getIndexerType()).thenReturn(Indexer.IndexerType.NAMEDFIELDS);
   String id = "/test";
   indexerGroup.onMessage(
       createIndexableMessage(
           REPOSITORY_NAMESPACE + EventType.valueOf(NODE_ADDED).toString(), id));
   verify(indexer, atLeastOnce()).update(anyString(), any());
 }