Return collection from even numbers with/without yeld (time)

using System.Collections.Generic;
using System.Linq;

        [TestMethod]
        public void WithoutYield()
        {
            var someNumbers = Enumerable.Range(1, 10); //Creating an range from a number from minimum to maximum

             //var evens = GetEvenNumbers(someNumbers); //Processing input first, output after
             var evens = GetEvenNumbersUsingYield(someNumbers); //Processing and outputing result as it comes


            foreach (var even in evens)
            {
                Debug.WriteLine("Output: " + even);

                //if (even == 6)
                //{
                //    break;
                //}
            }
        }



        IList<int> GetEvenNumbers(IEnumerable<int> numbers)
        {
            List<int> evens = new List<int>();

            foreach (var number in numbers)
            {
                Debug.WriteLine("GetEvenNumbers: Processing input number: " + number);

                    if (number%2 == 0)
                    {
                        evens.Add(number);
                    }
            }

            return evens;
        }







        IEnumerable<int> GetEvenNumbersUsingYield(IEnumerable<int> numbers)
        {
            foreach (var number in numbers)
            {
                Debug.WriteLine("GetEvenNumbersUsingYield: Processing input number: " + number);

                if (number % 2 == 0)
                {
                    Debug.WriteLine("GetEvenNumbersUsingYield: yielding: " + number);
                    yield return number;
                }
            }
        }



    [TestClass]
    public class IntegerNumberSequenceGeneration
    {

        [TestMethod]
        public void EnumerableRange()
        {
            var oneToTen = Enumerable.Range(1, 10);

            int[] twentyToThirty = Enumerable.Range(20, 11).ToArray();

            List<int> oneHundredToOneThirty = Enumerable.Range(100, 31).ToList();
        }
    }