public void GetReservedRetunrsWhatTokenHasReserved()
        {
            ReservedIndexedCharList list = new ReservedIndexedCharList("ABC");
            Token t = new NullToken();
            list.Reserve(0, t);
            list.Reserve(2, t);

            Assert.IsTrue(list.ToStringOnlyNoneReserved().Length == 1);
            Assert.IsTrue(list.GetReserved(t) == "AC");
        }