Add unit tests.

Fix data types in result set.

app/dao/fact_notification_status_dao.py

@@ -351,8 +351,8 @@ def fetch_monthly_template_usage_for_service(start_date, end_date, service_id):
             all_stats_table.c.name,
             all_stats_table.c.is_precompiled_letter,
             all_stats_table.c.template_type,
-            all_stats_table.c.month,
-            all_stats_table.c.year,
+            func.cast(all_stats_table.c.month, Integer).label('month'),
+            func.cast(all_stats_table.c.year, Integer).label('year'),
             func.cast(func.sum(all_stats_table.c.count), Integer).label('count'),
         ).group_by(
             all_stats_table.c.template_id,

app/service/rest.py

@@ -49,7 +49,6 @@ from app.dao.services_dao import (
     dao_create_service,
     dao_fetch_all_services,
     dao_fetch_all_services_by_user,
-    dao_fetch_monthly_historical_usage_by_template_for_service,
     dao_fetch_service_by_id,
     dao_fetch_todays_stats_for_service,
     dao_fetch_todays_stats_for_all_services,

tests/app/dao/test_fact_notification_status_dao.py

@@ -341,10 +341,11 @@ def test_fetch_stats_for_all_services_by_date_range(notify_db_session):
     assert not results[4].count
 
 
+@freeze_time('2018-01-04 14:00')
 def test_fetch_monthly_template_usage_for_service(sample_service):
-    template_one = create_template(service=sample_service, template_type='sms', template_name='one')
-    template_two = create_template(service=sample_service, template_type='email', template_name='one')
-    template_three = create_template(service=sample_service, template_type='letter', template_name='one')
+    template_one = create_template(service=sample_service, template_type='sms', template_name='1_one')
+    template_two = create_template(service=sample_service, template_type='email', template_name='2_two')
+    template_three = create_template(service=sample_service, template_type='letter', template_name='3_three')
 
     create_ft_notification_status(bst_date=date(2018, 1, 1),
                                   service=sample_service,
@@ -353,15 +354,38 @@ def test_fetch_monthly_template_usage_for_service(sample_service):
     create_ft_notification_status(bst_date=date(2018, 2, 1),
                                   service=sample_service,
                                   template=template_two,
-                                  count=3)
+                                  count=4)
     create_ft_notification_status(bst_date=date(2018, 3, 1),
                                   service=sample_service,
                                   template=template_three,
                                   count=5)
-
+    create_notification(template=template_one)
     results = fetch_monthly_template_usage_for_service(
         datetime(2017, 4, 1), datetime(2018, 3, 31), sample_service.id
     )
 
-    print(results)
     assert len(results) == 3
+
+    assert results[0].template_id == template_one.id
+    assert results[0].name == template_one.name
+    assert results[0].is_precompiled_letter is False
+    assert results[0].template_type == template_one.template_type
+    assert results[0].month == 1
+    assert results[0].year == 2018
+    assert results[0].count == 3
+
+    assert results[1].template_id == template_two.id
+    assert results[1].name == template_two.name
+    assert results[1].is_precompiled_letter is False
+    assert results[1].template_type == template_two.template_type
+    assert results[1].month == 2
+    assert results[1].year == 2018
+    assert results[1].count == 4
+
+    assert results[2].template_id == template_three.id
+    assert results[2].name == template_three.name
+    assert results[2].is_precompiled_letter is False
+    assert results[2].template_type == template_three.template_type
+    assert results[2].month == 3
+    assert results[2].year == 2018
+    assert results[2].count == 5