Optionally get notifications created w/ test key

This is only for the method that the admin app uses; it doesn’t affect
the public get notifications endpoint.

tests/app/service/test_rest.py

@@ -16,6 +16,7 @@ from tests.app.conftest import (
     sample_user as create_sample_user,
     sample_notification as create_sample_notification,
     sample_notification_with_job)
+from app.models import KEY_TYPE_TEST
 
 
 def test_get_service_list(notify_api, service_factory):
@@ -1037,23 +1038,39 @@ def test_get_all_notifications_for_service_in_order(notify_api, notify_db, notif
         assert response.status_code == 200
 
 
+@pytest.mark.parametrize(
+    'include_from_test_key, expected_count_of_notifications',
+    [
+        (False, 2),
+        (True, 3)
+    ]
+)
 def test_get_all_notifications_for_service_including_ones_made_by_jobs(
         notify_api,
         notify_db,
         notify_db_session,
-        sample_service):
+        sample_service,
+        include_from_test_key,
+        expected_count_of_notifications
+):
     with notify_api.test_request_context(), notify_api.test_client() as client:
         with_job = sample_notification_with_job(notify_db, notify_db_session, service=sample_service)
         without_job = create_sample_notification(notify_db, notify_db_session, service=sample_service)
+        from_test_api_key = create_sample_notification(
+            notify_db, notify_db_session, service=sample_service, key_type=KEY_TYPE_TEST
+        )
 
         auth_header = create_authorization_header()
 
         response = client.get(
-            path='/service/{}/notifications'.format(sample_service.id),
-            headers=[auth_header])
+            path='/service/{}/notifications?include_from_test_key={}'.format(
+                sample_service.id, include_from_test_key
+            ),
+            headers=[auth_header]
+        )
 
         resp = json.loads(response.get_data(as_text=True))
-        assert len(resp['notifications']) == 2
+        assert len(resp['notifications']) == expected_count_of_notifications
         assert resp['notifications'][0]['to'] == with_job.to
         assert resp['notifications'][1]['to'] == without_job.to
         assert response.status_code == 200