@Test
    public void estLogIdGenerator() {
        
        LogIDGenerator logIDGenerator = new UUIDHashLogIDGenerator();
        int size = 10000;
        Set<Long> largeSet = new HashSet<Long>(size);
        
        for (int i = 0; i < size; i++) {
            long id = logIDGenerator.generate(null, null, new Object[0]);
            Assert.assertFalse(largeSet.contains(id));
            largeSet.add(id);
        }
        
    }