// Thread may still be alive in test environment
        // assertFalse(indexUpdater.isAlive());
    }

    // Test run with max empty list count exceeded
    @Test
    public void test_run_maxEmptyListCountExceeded() throws Exception {
        final List<String> sessionIdList = Arrays.asList("session1");
        indexUpdater.setSessionIdList(sessionIdList);

        // Set max empty list count to 1