diff --git a/app/main/views/jobs.py b/app/main/views/jobs.py
index 3ebcf4f33..17d9996ed 100644
--- a/app/main/views/jobs.py
+++ b/app/main/views/jobs.py
@@ -386,7 +386,7 @@ def get_job_partials(job):
 
 
 def add_preview_of_content_to_notifications(notifications):
-    return [
+    return (
         dict(
             preview_of_content=(
                 str(Template(notification['template'], notification['personalisation']))
@@ -396,4 +396,4 @@ def add_preview_of_content_to_notifications(notifications):
             **notification
         )
         for notification in notifications
-    ]
+    )
diff --git a/tests/app/main/views/test_activity.py b/tests/app/main/views/test_activity.py
index 960a340f9..e53afd442 100644
--- a/tests/app/main/views/test_activity.py
+++ b/tests/app/main/views/test_activity.py
@@ -9,7 +9,6 @@ from bs4 import BeautifulSoup
 from app.main.views.jobs import get_time_left, get_status_filters
 from tests import notification_json
 from tests.conftest import SERVICE_ONE_ID
-from tests.app.test_utils import normalize_spaces
 from freezegun import freeze_time
 
 
@@ -136,23 +135,6 @@ def test_can_show_notifications(
     assert json_content.keys() == {'counts', 'notifications'}
 
 
-def test_shows_message_when_no_notifications(
-    client_request,
-    mock_get_detailed_service,
-    mock_get_notifications_with_no_notifications,
-):
-
-    page = client_request.get(
-        'main.view_notifications',
-        service_id=SERVICE_ONE_ID,
-        message_type='sms',
-    )
-
-    assert normalize_spaces(page.select('tbody tr')[0].text) == (
-        'No messages found'
-    )
-
-
 @pytest.mark.parametrize((
     'initial_query_arguments,'
     'form_post_data,'
diff --git a/tests/conftest.py b/tests/conftest.py
index 819caa29b..3f6519b29 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -1143,9 +1143,7 @@ def mock_get_notifications_with_no_notifications(mocker):
                            status=None,
                            limit_days=None,
                            include_jobs=None,
-                           include_from_test_key=None,
-                           to=None,
-                           ):
+                           include_from_test_key=None):
         return notification_json(service_id, rows=0)
 
     return mocker.patch(