Bug From To

modules/purchase_trade/tests/test_module.py

@@ -604,6 +604,31 @@ class PurchaseTradeTestCase(ModuleTestCase):
                 'quantity': Decimal('1'),
             })
 
+    def test_sale_and_purchase_parent_write_check_embedded_line_commands(self):
+        'sale and purchase writes validate embedded one2many line commands'
+        Sale = Pool().get('sale.sale')
+        Purchase = Pool().get('purchase.purchase')
+        invalid = Mock(
+            from_del=datetime.date(2026, 4, 16),
+            to_del=datetime.date(2026, 4, 10),
+        )
+
+        with patch('trytond.modules.purchase_trade.sale.Pool') as SalePool:
+            SalePool.return_value.get.return_value = Mock(
+                browse=Mock(return_value=[invalid]))
+            with self.assertRaises(UserError):
+                Sale._check_lines_delivery_period_values({
+                    'lines': [['write', [564], {'quantity': Decimal('1')}]],
+                })
+
+        with patch('trytond.modules.purchase_trade.purchase.Pool') as PurchasePool:
+            PurchasePool.return_value.get.return_value = Mock(
+                browse=Mock(return_value=[invalid]))
+            with self.assertRaises(UserError):
+                Purchase._check_lines_delivery_period_values({
+                    'lines': [['add', [564]]],
+                })
+
     def test_pricing_eod_uses_weighted_average_for_manual_rows(self):
         'manual pricing eod uses the weighted average of fixed and unfixed legs'
         Pricing = Pool().get('pricing.pricing')