public void SetOperatorType_GenericOverload_SetTypeElement()
        {
            BinaryOperatorResult result = new BinaryOperatorResult();

            result.SetOperatorType<AddOperator>();

            string actual = result.Element.Element("Type").Value;

            Assert.AreEqual("Add", actual);
        }
        public void SetOperatorType_InvalidOperatorType_Throws()
        {
            BinaryOperatorResult result = new BinaryOperatorResult();

            result.SetOperatorType(typeof(int));
        }