public void CalculateInterestInvestment() { float initialBalance = 200; float expected = 210; Customer customer = new Customer(4, "Allen", "02222222"); InvestmentAccount investmentAccount = new InvestmentAccount(customer, 5, initialBalance, 5, 20); float actual = investmentAccount.CalculateInterest(); Console.WriteLine("actual " + actual); Assert.AreEqual(expected, actual, 0.001); }