System.Linq.Tests.ExceptTests.FirstNullCustomComparer C# (CSharp) Method

        public void FirstNullCustomComparer()
        {
            IQueryable<string> first = null;
            string[] second = { "bBo", "shriC" };

            Assert.Throws<ArgumentNullException>("source1", () => first.Except(second.AsQueryable(), new AnagramEqualityComparer()));
        }