mk1.runBackgroundOperations();
mk2.runBackgroundOperations();
mk3.runBackgroundOperations();
NodeDocument doc = ds.find(NODES, Utils.getIdFromPath("/test"));
assertNotNull(doc);
Map<Revision, String> revs = doc.getLocalRevisions();
assertEquals(3, revs.size());
revs = doc.getValueMap("_revisions");
assertEquals(3 * NodeDocument.NUM_REVS_THRESHOLD, revs.size());