Catel.Test.Collections.CollectionExtensionsFacts.TheMoveItemDownMethod.ThrowsArgumentNullExceptionForNullItem C# (CSharp) Метод

            public void ThrowsArgumentNullExceptionForNullItem()
            {
                var list = new List<int> { 1, 2, 3 };
                ExceptionTester.CallMethodAndExpectException<ArgumentNullException>(() => list.MoveItemDown(null));
            }