Adding a filter to exclude test keys for the template monthly usage query.

Added a test.

app/dao/fact_notification_status_dao.py

@@ -312,7 +312,8 @@ def fetch_monthly_template_usage_for_service(start_date, end_date, service_id):
         FactNotificationStatus.service_id == service_id,
         FactNotificationStatus.bst_date >= start_date,
         FactNotificationStatus.bst_date <= end_date,
-        FactNotificationStatus.notification_status != NOTIFICATION_CANCELLED
+        FactNotificationStatus.key_type != KEY_TYPE_TEST,
+        FactNotificationStatus.notification_status != NOTIFICATION_CANCELLED,
     ).group_by(
         FactNotificationStatus.template_id,
         Template.name,

tests/app/dao/test_fact_notification_status_dao.py

@@ -461,3 +461,21 @@ def test_fetch_monthly_template_usage_for_service_does_not_include_cancelled_sta
     )
 
     assert len(results) == 0
+
+
+@freeze_time('2018-03-30 14:00')
+def test_fetch_monthly_template_usage_for_service_does_not_include_test_notifications(
+        sample_template
+):
+    create_ft_notification_status(bst_date=date(2018, 3, 1),
+                                  service=sample_template.service,
+                                  template=sample_template,
+                                  notification_status='delivered',
+                                  key_type='test',
+                                  count=15)
+    create_notification(template=sample_template, created_at=datetime.utcnow(), status='cancelled')
+    results = fetch_monthly_template_usage_for_service(
+        datetime(2018, 1, 1), datetime(2018, 3, 31), sample_template.service_id
+    )
+
+    assert len(results) == 0