SalesOrder migration unit test (#8814) (#8961)

* Unit test for SalesOrder data migration

* make field checks more stable

* Adjust migration  strategy

* Fix for data migration

* Simplify login test for playwright

---------

Co-authored-by: Matthias Mair <code@mjmair.com>
(cherry picked from commit a13f5681a1a65eec9a59892cd53fc6d929703996)

Co-authored-by: Oliver <oliver.henry.walters@gmail.com>

src/backend/InvenTree/generic/states/fields.py

@@ -100,7 +100,9 @@ class InvenTreeCustomStatusModelField(models.PositiveIntegerField):
         """Add the _custom_key field to the model."""
         cls._meta.supports_custom_status = True
 
-        if not hasattr(self, '_custom_key_field'):
+        if not hasattr(self, '_custom_key_field') and not hasattr(
+            cls, f'{name}_custom_key'
+        ):
             self.add_field(cls, name)
 
         super().contribute_to_class(cls, name)

src/backend/InvenTree/order/migrations/0105_auto_20241128_0431.py

@@ -1,6 +1,6 @@
 # Generated by Django 4.2.16 on 2024-11-28 04:31
 
-from django.db import migrations
+from django.db import migrations, connection
 
 
 def update_shipment_date(apps, schema_editor):
@@ -18,9 +18,15 @@ def update_shipment_date(apps, schema_editor):
         shipment_date__isnull=True
     )
 
-    updated_orders = 0
+    update_count = 0
+
+    cursor = connection.cursor()
 
     for order in orders:
+
+        # Check that the shipment date is actually null here
+        assert order.shipment_date is None, f"SalesOrder {order.pk} has non-null shipment_date"
+
         # Find the latest shipment date for any associated allocations
         shipments = order.shipments.filter(shipment_date__isnull=False)
         latest_shipment = shipments.order_by('-shipment_date').first()
@@ -29,13 +35,21 @@ def update_shipment_date(apps, schema_editor):
             continue
 
         # Update the order with the new shipment date
-        order.shipment_date = latest_shipment.shipment_date
-        order.save()
+        shipment_date = latest_shipment.shipment_date
 
-        updated_orders += 1
-    
-    if updated_orders > 0:
-        print(f"Updated {updated_orders} SalesOrder objects with missing shipment_date")
+        # Raw SQL to prevent some weird migration "order of operations" issues
+        # Reference: https://github.com/inventree/InvenTree/pull/8814
+        query = f"UPDATE order_salesorder SET shipment_date = '{shipment_date}' WHERE id = {order.pk}"
+        cursor.execute(query)
+
+        # Fetch the updated object, check that the shipment date has been updated
+        order.refresh_from_db()
+        assert order.shipment_date is not None, f"SalesOrder {order.pk} still has missing shipment_date"
+
+        update_count += 1
+
+    if update_count > 0:
+        print(f"Updated {update_count} SalesOrder shipment dates")
 
 
 class Migration(migrations.Migration):

src/backend/InvenTree/order/test_migrations.py

@@ -198,3 +198,52 @@ class TestAdditionalLineMigration(MigratorTestCase):
         # so = SalesOrder.objects.get(reference=f"{ii}-xyz")
         # self.assertEqual(so.extra_lines, 1)
         # self.assertEqual(so.lines.count(), 1)
+
+
+class TestShipmentDateMigration(MigratorTestCase):
+    """Test data migration which fixes empty 'shipment date' on SalesOrder model.
+
+    Ref: 0105_auto_20241128_0431.py
+    """
+
+    migrate_from = ('order', '0100_remove_returnorderattachment_order_and_more')
+    migrate_to = ('order', '0105_auto_20241128_0431')
+
+    def prepare(self):
+        """Create initial SalesOrder dataset."""
+        Company = self.old_state.apps.get_model('company', 'company')
+        SalesOrder = self.old_state.apps.get_model('order', 'salesorder')
+        SalesOrderShipment = self.old_state.apps.get_model(
+            'order', 'salesordershipment'
+        )
+
+        # Create a customer
+        customer = Company.objects.create(
+            name='Customer A',
+            description='A great customer!',
+            is_customer=True,
+            is_supplier=False,
+        )
+
+        # Create a SalesOrder (Completed, but missing shipment date)
+        order = SalesOrder.objects.create(
+            customer=customer,
+            reference='SO-999',
+            description='A test sales order',
+            shipment_date=None,
+            status=SalesOrderStatus.COMPLETE,
+        )
+
+        # Add a shipment
+        SalesOrderShipment.objects.create(order=order, shipment_date='2024-11-28')
+
+        self.assertEqual(order.shipments.count(), 1)
+        self.assertIsNone(order.shipment_date)
+
+    def test_migration(self):
+        """Test that the migration has correctly updated the SalesOrder objects."""
+        SalesOrder = self.new_state.apps.get_model('order', 'salesorder')
+
+        order = SalesOrder.objects.get(reference='SO-999')
+        self.assertIsNotNone(order.shipment_date)
+        self.assertEqual(order.shipment_date.isoformat(), '2024-11-28')

src/frontend/tests/pui_login.spec.ts

@@ -8,23 +8,6 @@ test('Login - Basic Test', async ({ page }) => {
   // Check that the username is provided
   await page.getByText(user.username);
 
-  await expect(page).toHaveTitle(/^InvenTree/);
-
-  // Go to the dashboard
-  await page.goto(baseUrl);
-  await page.waitForURL('**/platform');
-
-  await page.getByText('InvenTree Demo Server -').waitFor();
-
-  // Check that the username is provided
-  await page.getByText(user.username);
-
-  await expect(page).toHaveTitle(/^InvenTree/);
-
-  // Go to the dashboard
-  await page.goto(baseUrl);
-  await page.waitForURL('**/platform');
-
   // Logout (via menu)
   await page.getByRole('button', { name: 'Ally Access' }).click();
   await page.getByRole('menuitem', { name: 'Logout' }).click();