public void RejectChanges_Should_RejectChanges_On_Collection_Property()
{
var order = Helper.GetOrder();
var trackable = order.AsTrackable();
trackable.OrderDetails[0].ItemNo = "ItemTesting";
var intf = trackable.CastToIChangeTrackable();
intf.RejectChanges();
trackable.OrderDetails[0].ShouldBeEquivalentTo(Helper.GetOrder().OrderDetails[0].AsTrackable());
}