-In order to test picking_line_description,I assign group_use_product_description_per_picking_line group to the admin user-!python{model:res.users}:|self.write(cr, uid, [ref("base.user_root")],{'groups_id': [(4, ref("stock_move_description.group_use_product_description_per_stock_move"))]})-I set the description field on the product 'USB Adapter'-!python{model:product.product}:|self.write(cr, uid, [ref("product.product_product_48")], {'description': 'Wi-Fi Adapter'})-Now i create an outgoing picking order that uses my product-!record{model:stock.picking,id:stock_picking_out0}:partner_id:base.res_partner_2picking_type_id:stock.picking_type_outmove_lines:-product_id:product.product_product_48product_uom_qty:10location_id:stock.stock_location_stocklocation_dest_id:stock.stock_location_customers-I verify that the onchange of product on move line was correctly triggered-!assert{model:stock.picking,id:stock_picking_out0,string:The onchange function of product was not correctly triggered}:-move_lines[0].name == move_lines[0].product_id.description-move_lines[0].name == u'Wi-Fi Adapter'