public void AcceptChanges_On_Collection_Should_All_Items_Status_Be_Unchanged()
{
var orders = Helper.GetOrdersIList();
var trackable = orders.AsTrackable();
var first = trackable.First();
first.Id = 963;
first.CustomerNumber = "Testing";
var collectionintf = trackable.CastToIChangeTrackableCollection();
collectionintf.AcceptChanges();
trackable.All(o => o.CastToIChangeTrackable().ChangeTrackingStatus == ChangeStatus.Unchanged).Should().BeTrue();
}