public void removeExistingDiscount()
        {
            int     beforeDeletion = discountsArchive.getAllDiscounts().Count;
            Boolean check          = discountsArchive.removeDiscount(1);
            int     afterDeletion  = discountsArchive.getAllDiscounts().Count;

            Assert.IsTrue(check);
            Assert.AreEqual(beforeDeletion, afterDeletion + 1);
        }