def METHOD_NAME(self):
    """
    Test FIFO valuation method for stock accounting in case of return from sale
    """
    #  intrare in stoc
    self.make_purchase()
    stock_value_final_p1 = round(self.qty_po_p1 * self.price_p1, 2)
    stock_value_final_p2 = round(self.qty_po_p2 * self.price_p2, 2)
    # iesire din stoc prin vanzare
    self.create_so()
    # valoarea de stoc dupa vanzarea produselor
    stock_value_final_p1 -= self.val_stock_out_so_p1
    stock_value_final_p2 -= self.val_stock_out_so_p2
    price_p1 = self.price_p1
    price_p2 = self.price_p2
    self.price_p1 = 75.0
    self.price_p2 = 75.0
    self.make_purchase()
    stock_value_final_p1 += round(self.qty_po_p1 * self.price_p1, 2)
    stock_value_final_p2 += round(self.qty_po_p2 * self.price_p2, 2)
    self.check_stock_valuation(stock_value_final_p1, stock_value_final_p2)
    self.check_account_valuation(stock_value_final_p1, stock_value_final_p2)
    pick = self.so.picking_ids
    self.make_return(pick, 2.0)
    self.create_sale_invoice()
    stock_value_final_p1 += round(2 * price_p1, 2)
    stock_value_final_p2 += round(2 * price_p2, 2)
    self.check_stock_valuation(stock_value_final_p1, stock_value_final_p2)
    self.check_account_valuation(stock_value_final_p1, stock_value_final_p2)