Offfload email notification (#12470)

* Offfload email notification

* Run email sync in testing

src/backend/InvenTree/InvenTree/helpers_email.py

@@ -69,8 +69,21 @@ def send_email(
     html_message=None,
     prio: Priority = Priority.NORMAL,
     headers: Optional[dict] = None,
+    force_async: bool = False,
+    **kwargs,
 ) -> tuple[bool, Optional[str]]:
-    """Send an email with the specified subject and body, to the specified recipients list."""
+    """Send an email with the specified subject and body, to the specified recipients list.
+
+    Arguments:
+        subject: Subject of the email
+        body: Body of the email
+        recipients: List of recipients (or a single recipient)
+        from_email: Optional sender email address (if not specified, will use DEFAULT_FROM_EMAIL)
+        html_message: Optional HTML message to send
+        prio: Priority of the email (default is normal)
+        headers: Optional dictionary of headers to include in the email
+        force_async: If True, will force the email to be sent asynchronously
+    """
     if isinstance(recipients, str):
         recipients = [recipients]
 
@@ -109,6 +122,7 @@ def send_email(
         html_message=html_message,
         prio=prio,
         headers=headers,
+        force_async=force_async,
         group='notification',
     )
     return True, None

src/backend/InvenTree/plugin/builtin/integration/core_notifications.py

@@ -1,5 +1,6 @@
 """Core set of Notifications as a Plugin."""
 
+from django.conf import settings
 from django.contrib.auth.models import User
 from django.db.models import Model
 from django.template.loader import render_to_string
@@ -109,7 +110,11 @@ class InvenTreeEmailNotifications(NotificationMixin, SettingsMixin, InvenTreePlu
 
         if recipients:
             InvenTree.helpers_email.send_email(
-                subject, '', recipients, html_message=html_message
+                subject,
+                '',
+                recipients,
+                html_message=html_message,
+                force_async=not settings.TESTING,
             )
             return True
 

src/backend/InvenTree/plugin/builtin/integration/test_core_notifications.py

@@ -44,8 +44,6 @@ class CoreNotificationTestTests(InvenTreeTestCase):
         # No email should be send
         self.assertEqual(len(mail.outbox), 0)
 
-        print('- get email plugin:')
-
         plugin = registry.get_plugin('inventree-email-notification')
         self.assertIsNotNone(plugin, 'Email notification plugin should be available')