public void Ifge() { var priceCalc = new PriceCalculator(); priceCalc.Push("Beans", "can", 0.65, 0); priceCalc.Push("Bread", "loaf", 0.80, 0); priceCalc.Push("Milk", "bottle", 1.30, 0); priceCalc.Push("Apple", "bag", 1, 0); priceCalc.Modify("Apple", "bag", 10, 0); priceCalc.Calculator("Apple,2,Milk,3,Beans,2,Bread,1"); //Assert.That(priceCalc._priceList[3], Is.EqualTo(10)); }