public void AsTrackable_When_CollectionProperty_Children_Trackable_Child_Change_Property_Should_Change_Parent()
{
var order = Helper.GetOrder();
var trackable = order.AsTrackable();
trackable.OrderDetails[0].OrderDetailId = 999;
trackable.OrderDetails.CastToIChangeTrackableCollection().IsChanged.Should().BeTrue();
trackable.CastToIChangeTrackable().ChangeTrackingStatus.Should().Be(ChangeStatus.Changed);
}