System.Linq.Tests.SumTests.SumOfNullableOfInt_SelectorIsNull_ArgumentNullExceptionThrown C# (CSharp) 메소드

        public void SumOfNullableOfInt_SelectorIsNull_ArgumentNullExceptionThrown()
        {
            IQueryable<int?> sourceNullableInt = Enumerable.Empty<int?>().AsQueryable();
            Expression<Func<int?, int?>> selector = null;
            Assert.Throws<ArgumentNullException>("selector", () => sourceNullableInt.Sum(selector));
        }