Alphanumeric sorting in C#

MyDataObject.cs

/// <summary>simple Value Object</summary>
public class MyDataObject
{
  public string Name { get; set; }
}

SortTest.cs

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

using NUnit.Framework;

[TestFixture]
public class SortTest
{
    [Test]
    public void SortListTest()
    {
        var ui = new UsageClass();
        var unsortedList = new List<MyDataObject>()
            {
                new MyDataObject() { Name = "wasser" },
                new MyDataObject() { Name = "Aaab" },
                new MyDataObject() { Name = "W93" },
                new MyDataObject() { Name = "wässer" },
            };
        var current = ui.GetSortedNameList(unsortedList);
        var unsortedNameList = unsortedList.Select(s => s.Name).ToList();
        var expected = new List<string>()
                           {
                               "Aaab",
                               "W93",
                               "wasser",
                               "wässer",
                           };
        Assert.AreNotEqual(unsortedNameList, expected);
        Assert.AreEqual(current, expected);
        for (int i = 0; i < current.Count; i++)
        {
            Assert.AreSame(
              current[i],
              expected[i],
              string.Format(
                "found `{0}` at pos #{1} but expected to be found at pos #{2}",
                current[i],
                i,
                expected.FindIndex(s => s.Equals(current[i]))));
        }
    }
}

UsageClass_GetSortedNameList.cs

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

public class UsageClass
{
  public List<string> GetSortedNameList(IEnumerable<MyDataObject> objList)
  {
    if (objList == null)
    {
      return new List<string>();
    }

    return objList
      .OrderBy(s => s.Name, StringComparer.Create(CultureInfo.CurrentCulture, true))
      .Select(p => p.Name)
      .ToList();
  }
}