// Done!
private static void MovesHelper(string parent, ICollection <string> childreen)
{
EightPuzzle pParent = EightPuzzleFactory.Create(parent);
IList <EightPuzzle> pChildreen = pParent.Children();
Assert.AreEqual(childreen.Count, pChildreen.Count);
var q1 = from x in pChildreen
orderby x.ToString()
select x;
var q2 = (from x in childreen
orderby x
select x).ToList();
int i = 0;
foreach (var item in q1)
{
Assert.AreEqual(q2[i++], item.ToString());
}
}
