System.Linq.Tests.JoinTests.SelectorsReturnNull C# (CSharp) Method

        public void SelectorsReturnNull()
        {
            int?[] inner = { null, null, null };
            int?[] outer = { null, null };
            Assert.Empty(outer.AsQueryable().Join(inner.AsQueryable(), e => e, e => e, (x, y) => x));
        }