public void ClosureLambda()
        {
            var result = ClosureService.ClosureLambda();

            Assert.AreEqual(7, result(5));
            Assert.AreEqual(9, result(6));
        }
        public void ClosureDelegate()
        {
            var result = ClosureService.ClosureDelegate();

            Assert.AreEqual(7, result(5));
            Assert.AreEqual(9, result(6));
        }