Report for total notifications sent per day for each channel.

Daily volumes report: total volumes across the platform aggregated by whole business day (bst_date)
Volumes by service report: total volumes per service aggregated by the date range given.

NB: start and end dates are inclusive

tests/app/notify_client/test_billing_client.py

@@ -41,3 +41,21 @@ def test_post_free_sms_fragment_limit_for_year_endpoint(mocker, api_user_active)
         url='/service/{}/billing/free-sms-fragment-limit'.format(service_id),
         data=sms_limit_data
     )
+
+
+def test_get_data_for_volumes_by_service_report(mocker, api_user_active):
+    mock_get = mocker.patch('app.notify_client.billing_api_client.BillingAPIClient.get')
+    client = BillingAPIClient()
+
+    client.get_data_for_volumes_by_service_report('2022-03-01', '2022-03-31')
+    mock_get.assert_called_once_with(url='/platform-stats/volumes-by-service',
+                                     params={'start_date': '2022-03-01', 'end_date': '2022-03-31'})
+
+
+def test_get_data_for_daily_volumes_report(mocker, api_user_active):
+    mock_get = mocker.patch('app.notify_client.billing_api_client.BillingAPIClient.get')
+    client = BillingAPIClient()
+
+    client.get_data_for_daily_volumes_report('2022-03-01', '2022-03-31')
+    mock_get.assert_called_once_with(url='/platform-stats/daily-volumes-report',
+                                     params={'start_date': '2022-03-01', 'end_date': '2022-03-31'})

tests/app/test_navigation.py

@@ -131,6 +131,8 @@ EXCLUDED_ENDPOINTS = tuple(map(Navigation.get_endpoint_with_blueprint, {
     'find_users_by_email',
     'forgot_password',
     'get_billing_report',
+    'get_daily_volumes',
+    'get_volumes_by_service',
     'get_example_csv',
     'get_notifications_as_json',
     'get_started',