System.Linq.Tests.WhereTests.Where_List_ReturnsExpectedValues_Complex C# (CSharp) Method

        public void Where_List_ReturnsExpectedValues_Complex()
        {
            List<int> source = new List<int> { 2, 1, 3, 5, 4 };
            Func<int, int, bool> complexPredicate = (value, index) => { return (value == index); };

            IEnumerable<int> result = source.Where(complexPredicate);

            Assert.Equal(2, result.Count());
            Assert.Equal(1, result.ElementAt(0));
            Assert.Equal(4, result.ElementAt(1));
        }