public void When_Adding_To_Collection_Status_Should_Be_Added()
{
var orders = Helper.GetOrdersIList();
var trackable = orders.AsTrackable();
trackable.Add(new Order { Id = 999999999, CustomerNumber = "Customer" });
trackable.Single(o => o.Id == 999999999).CastToIChangeTrackable().ChangeTrackingStatus.Should().Be(ChangeStatus.Added);
}