public void RejectChanges_Should_RejectChanges()
{
var order = Helper.GetOrder();
var trackable = order.AsTrackable();
trackable.Id = 963;
trackable.CustomerNumber = "Testing";
var intf = trackable.CastToIChangeTrackable();
intf.RejectChanges();
trackable.ShouldBeEquivalentTo(Helper.GetOrder().AsTrackable());
}