Test method for 'org.apache.lucene.gdata.storage.IDGenerator.getUID()'
List<String> idlist = new ArrayList<String>();
//TODO think about a better way to test this
for (int i = 0; i < 1000; i++) {
String id = this.idgen.getUID();
assertNotNull(id);
assertFalse(idlist.contains(id));
idlist.add(id);
}