public void HashTblMustWork()
        {
            int n = 1000;
            RandomStringGenerator rnd = new RandomStringGenerator(true, true, true, false);

            HashTbl <int, string>    table = new HashTbl <int, string>(n);
            Dictionary <int, string> dic   = new Dictionary <int, string>();

            for (int i = 0; i < n; i++)
            {
                int    key  = i;
                string item = rnd.Generate(10);
                table.Add(key, item);
                dic.Add(key, item);
            }


            Assert.AreEqual(table.GetItem(100), dic[100]);
        }