System.Linq.Tests.SumTests.SumOfNullableOfInt_SourceIsNull_ArgumentNullExceptionThrown C# (CSharp) Метод

        public void SumOfNullableOfInt_SourceIsNull_ArgumentNullExceptionThrown()
        {
            IQueryable<int?> sourceNullableInt = null;
            Assert.Throws<ArgumentNullException>("source", () => sourceNullableInt.Sum());
            Assert.Throws<ArgumentNullException>("source", () => sourceNullableInt.Sum(x => x));
        }