public void AcceptChanges_Should_AcceptChanges()
{
var order = Helper.GetOrder();
var trackable = order.AsTrackable();
trackable.Id = 963;
trackable.CustomerNumber = "Testing";
var intf = trackable.CastToIChangeTrackable();
intf.AcceptChanges();
intf.ShouldBeEquivalentTo(intf.GetOriginal().AsTrackable());
intf.GetOriginalValue(o => o.Id).Should().Be(963);
}