Exclude test key notifications from:

- get all notifications by service
- template usage
- most recently used templates

Ensures that the dashboard shows no test key data. Supplements: https://github.com/alphagov/notifications-api/pull/677 which excludes CSV data. This branches from that so is dependant.

app/dao/notifications_dao.py

@@ -21,7 +21,7 @@ from app.models import (
     NOTIFICATION_CREATED,
     NOTIFICATION_SENDING,
     NOTIFICATION_PENDING,
-    NOTIFICATION_TEMPORARY_FAILURE, KEY_TYPE_NORMAL)
+    NOTIFICATION_TEMPORARY_FAILURE, KEY_TYPE_NORMAL, KEY_TYPE_TEST)
 
 from app.dao.dao_utils import transactional
 from app.statsd_decorators import statsd
@@ -97,7 +97,7 @@ def dao_get_template_usage(service_id, limit_days=None):
         Template.template_type
     )
 
-    query_filter = [table.service_id == service_id]
+    query_filter = [table.service_id == service_id, table.key_type != KEY_TYPE_TEST]
     if limit_days is not None:
         query_filter.append(table.created_at >= days_ago(limit_days))
 
@@ -110,7 +110,9 @@ def dao_get_template_usage(service_id, limit_days=None):
 
 @statsd(namespace="dao")
 def dao_get_last_template_usage(template_id):
-    return NotificationHistory.query.filter(NotificationHistory.template_id == template_id) \
+    return NotificationHistory.query.filter(
+        NotificationHistory.template_id == template_id,
+        NotificationHistory.key_type != KEY_TYPE_TEST) \
         .join(Template) \
         .order_by(desc(NotificationHistory.created_at)) \
         .first()
@@ -248,6 +250,9 @@ def get_notifications_for_service(service_id,
 
     if key_type is not None:
         filters.append(Notification.key_type == key_type)
+    else:
+        filters.append(Notification.key_type != KEY_TYPE_TEST)
+
     query = Notification.query.filter(*filters)
     query = _filter_query(query, filter_dict)
     if personalisation: