EnumSpeed_02

        [Test]
        public void Enum_Casting_And_Comparison()
        {
            var castFromExisting = (InvoicePaymentMethod)'A'; //result: AutoGiroNorway
            var castFromNotExisting = (InvoicePaymentMethod)'Ż'; //result: 379 - (int)'Ż'

            var comparisonWithExisting = (InvoicePaymentMethod)'\0' == InvoicePaymentMethod.Undefined; //true
            var comparisonWithNotExisting = (InvoicePaymentMethod)'Ż' == InvoicePaymentMethod.Undefined; //false
        }