[IMP] rma: prevent the creation of zero qty moves

rma/models/stock_rule.py

@@ -30,6 +30,7 @@ class StockRule(models.Model):
         )
         if "rma_line_id" in values:
             line = values.get("rma_line_id")
+            line = self.env["rma.order.line"].browse([line])
             res["rma_line_id"] = line.id
             if line.delivery_address_id:
                 res["partner_id"] = line.delivery_address_id.id

rma/tests/test_rma.py

@@ -1049,3 +1049,18 @@ class TestRma(common.TransactionCase):
         ).create({})
         with self.assertRaisesRegex(UserError, "No rule found"):
             wizard._create_picking()
+
+    def test_07_no_zero_qty_moves(self):
+        rma_lines = self.rma_customer_id.rma_line_ids
+        rma_lines.write({"receipt_policy": "delivered"})
+        self.assertEqual(sum(rma_lines.mapped("qty_to_receive")), 0)
+        wizard = self.rma_make_picking.with_context(
+            {
+                "active_ids": rma_lines.ids,
+                "active_model": "rma.order.line",
+                "picking_type": "incoming",
+                "active_id": 1,
+            }
+        ).create({})
+        with self.assertRaisesRegex(ValidationError, "No quantity to transfer"):
+            wizard._create_picking()

rma/wizards/rma_make_picking.py

@@ -5,7 +5,7 @@ import time
 
 from odoo import _, api, fields, models
 from odoo.exceptions import UserError, ValidationError
-from odoo.tools import DEFAULT_SERVER_DATETIME_FORMAT as DT_FORMAT
+from odoo.tools import DEFAULT_SERVER_DATETIME_FORMAT as DT_FORMAT, float_compare
 
 
 class RmaMakePicking(models.TransientModel):
@@ -147,7 +147,12 @@ class RmaMakePicking(models.TransientModel):
         else:
             qty = item.qty_to_deliver
         values = self._get_procurement_data(item, group, qty, picking_type)
-        values = dict(values, rma_line_id=item.line_id, rma_id=item.line_id.rma_id)
+        product = item.line_id.product_id
+        if float_compare(qty, 0, product.uom_id.rounding) != 1:
+            raise ValidationError(
+                _("No quantity to transfer on %s shipment of product %s.")
+                % (_(picking_type), product.default_code or product.name)
+            )
         # create picking
         procurements = []
         try: