Sharekhan.domain.ShortTermTaxCalculator.CalculateShortTermTax C# (CSharp) Method

        public Price CalculateShortTermTax()
        {
            Transactions = GetTransactionBalance();

            Stack buyStack = CreateBuyTransactionStack();
            Stack sellStack = CreateSellTransactionStack();

            return CalculateTaxOverTheBuyAndSellStacks(buyStack, sellStack);
        }

        public void ShouldGetSTCGForTheListOfValidTransactions()
        {
            Instrument share = new Stock(new Symbol("REL"), new Price(10.00), "Rel*iance Power");

            Transaction buyTransaction1 = new BuyTransaction(new DateTime(2005, 06, 01), share, 20, new Price(10.00), 5.00, 3.00);
            Transaction sellTransaction1 = new SellTransaction(new DateTime(2006, 01, 01), share, 10, new Price(20.00), 5.00, 3.00);
            Transaction buyTransaction2 = new BuyTransaction(new DateTime(2006, 12, 01), share, 10, new Price(30.00), 5.00, 3.00);
            Transaction sellTransaction2 = new SellTransaction(new DateTime(2007, 08, 01), share, 10, new Price(50.00), 5.00, 3.00);

            // The balance at end of this should be a Buy with 10 shares left.
            // These transactions below will not be considered.
            //            Transaction buyTransaction8 = new BuyTransaction(new DateTime(2008, 06, 01), share, 10, new Price(10.00), 5.00, 3.00);
            Transaction buyTransaction3 = new BuyTransaction(new DateTime(2008, 06, 01), share, 20, new Price(10.00), 5.00, 3.00);
            Transaction sellTransaction3 = new SellTransaction(new DateTime(2009, 01, 01), share, 10, new Price(20.00), 5.00, 3.00);
            Transaction buyTransaction4 = new BuyTransaction(new DateTime(2008, 12, 01), share, 10, new Price(10.00), 5.00, 3.00);
            Transaction sellTransaction4 = new SellTransaction(new DateTime(2009, 08, 01), share, 10, new Price(20.00), 5.00, 3.00);

            List<Transaction> listTransaction = new List<Transaction> { buyTransaction1, sellTransaction1, buyTransaction2, sellTransaction2,buyTransaction3, sellTransaction3, buyTransaction4, sellTransaction4 };

            ShortTermTaxCalculator TaxCalculator = new ShortTermTaxCalculator(listTransaction, new FinYear(2009));

            Price Tax = TaxCalculator.CalculateShortTermTax();

            Assert.AreEqual(20, Tax.Value);
        }