System.Linq.Tests.SelectTests.Select_SourceIsICollection_CurrentIsDefaultOfTAfterEnumeration C# (CSharp) Метод

        public void Select_SourceIsICollection_CurrentIsDefaultOfTAfterEnumeration()
        {
            ICollection<int> source = new LinkedList<int>(new List<int>() { 1 });
            Func<int, int> selector = i => i + 1;

            IEnumerable<int> query = source.Select(selector);

            var enumerator = query.GetEnumerator();
            while (enumerator.MoveNext()) ;

            Assert.Equal(default(int), enumerator.Current);
        }