public void Price_Test_Converting_To_EURO()
        {
            var price = new CurrencyAndPrice(100, Currency.PLN);

            Assert.AreEqual(price.InPLN().Value, 100);
            Assert.AreEqual(price.InEURO().Value, 23.42);
        }
        public void Price_Test_Converting_To_PLN()
        {
            var price = new CurrencyAndPrice(10.10, Currency.EURO);

            Assert.AreEqual(price.InPLN().Value, 38.38);
            Assert.AreEqual(price.InEURO().Value, 10.10);
        }