* Create a product with that uses a category with automatic
  inventory valuation and FIFO costing method.

* Create a purchase order for this product and receive it into stock.

* Deliver the product to a customer and check the completed stock move in
  'Inventory / Reporting / Stock Moves'. You will see a section
  'Valuation Layers' where you will be able to identify the valuation layers
  that were used to value this move, and the quantity and value that was taken.

* Create several MTO order

* Deliver the products to a customer in a random way and check the section
  'Valuation Layers Usage'. The MTO logic is respected, then FIFO applies.
