@Test
public void createDirectChildrenCacheStressTest() {

    Stopwatch sw = new Stopwatch();
    sw.start();
    Set<Long> cuboidSet = generateMassCuboidSet();
    System.out.println("Time elapsed for creating sorted cuboid list: " + sw.elapsedMillis());
    sw.reset();
    sw.start();
    checkDirectChildrenCacheStressTest(CuboidStatsUtil.createDirectChildrenCache(cuboidSet));
    System.out.println("Time elapsed for creating direct children cache: " + sw.elapsedMillis());
    sw.stop();
}