public void IsBasicFeeAdded() { Random randomNumber = new Random(); IFeeCalculator SUT = new FeeCalculator(); ITransactionData transaction = new TransactionData(); for (int i = 0; i < 100; i++) { transaction.Amount = (decimal)(randomNumber.NextDouble() * 200); transaction.Fee = SUT.AddBasicFee(transaction); Assert.AreEqual(transaction.Amount / 100, transaction.Fee); } }