[FIX] mrp: Delivered quantity with kit

Steps to reproduce:

- Set the Decimal Accuracy at 5 digits for Product UoM
- Create a product X
- Create a kit BOM for X with a component Y, and qty 0.08600
- Create a Sale Order for 10 product X, confirm and deliver all

Issue

- On the SO, quantity delevered is 9.00000 instead of 10.00000, same
  issue occur with the same flow with a Purchase Order.

Cause

As the quantity per kit was rounded when calling _compute_qty,
the calcul of quantity ratio was not well computed.

Solution

Avoid rounding the quantity per kit, as the quantity ratio is rounded
a few steps after.

opw-2590126

closes odoo/odoo#78516

X-original-commit: 2a2b198ea6ce1d0553c606404e6db1117dc1c4a2
Signed-off-by: William Henrotin <Whenrow@users.noreply.github.com>
Signed-off-by: guva-odoo <guva-odoo@users.noreply.github.com>

addons/mrp/models/stock_move.py

@@ -429,7 +429,7 @@ class StockMove(models.Model):
                 # Then, we collect every relevant moves related to a specific component
                 # to know how many are considered delivered.
                 uom_qty_per_kit = bom_line_data['qty'] / bom_line_data['original_qty']
-                qty_per_kit = bom_line.product_uom_id._compute_quantity(uom_qty_per_kit, bom_line.product_id.uom_id)
+                qty_per_kit = bom_line.product_uom_id._compute_quantity(uom_qty_per_kit, bom_line.product_id.uom_id, round=False)
                 if not qty_per_kit:
                     continue
                 incoming_moves = bom_line_moves.filtered(filters['incoming_moves'])

addons/sale_mrp/tests/test_sale_mrp_kit_bom.py

@@ -296,3 +296,51 @@ class TestSaleMrpKitBom(TransactionCase):
         line = so.order_line
         purchase_price = line.product_id.with_company(line.company_id)._compute_average_price(0, line.product_uom_qty, line.move_ids)
         self.assertEqual(purchase_price, 92, "The purchase price must be the total cost of the components multiplied by their unit of measure")
+
+    def test_qty_delivered_with_bom(self):
+        """Check the quantity delivered, when a bom line has a non integer quantity"""
+
+        self.env.ref('product.decimal_product_uom').digits = 5
+
+        self.kit = self._create_product('Kit', 'product', 0.00)
+        self.comp = self._create_product('Component', 'product', 0.00)
+
+        # Create BoM for Kit
+        bom_product_form = Form(self.env['mrp.bom'])
+        bom_product_form.product_id = self.kit
+        bom_product_form.product_tmpl_id = self.kit.product_tmpl_id
+        bom_product_form.product_qty = 1.0
+        bom_product_form.type = 'phantom'
+        with bom_product_form.bom_line_ids.new() as bom_line:
+            bom_line.product_id = self.comp
+            bom_line.product_qty = 0.08600
+        self.bom = bom_product_form.save()
+
+
+        self.customer = self.env['res.partner'].create({
+            'name': 'customer',
+        })
+
+        so = self.env['sale.order'].create({
+            'partner_id': self.customer.id,
+            'order_line': [
+                (0, 0, {
+                    'name': self.kit.name,
+                    'product_id': self.kit.id,
+                    'product_uom_qty': 10.0,
+                    'product_uom': self.kit.uom_id.id,
+                    'price_unit': 1,
+                    'tax_id': False,
+                })],
+        })
+        so.action_confirm()
+
+        self.assertTrue(so.picking_ids)
+        self.assertEqual(so.order_line.qty_delivered, 0)
+
+        picking = so.picking_ids
+        picking.move_lines.quantity_done = 0.86000
+        picking.button_validate()
+
+        # Checks the delivery amount (must be 10).
+        self.assertEqual(so.order_line.qty_delivered, 10)