Implemented the REST endpoint to communicate with the new send-to-provider code

- this allows us to send a notification to a provider by means of an API call
- This is in addition to the celery code.
- idea is that we can use this method to help speed up throughput by generating API traffic by node/lambda etc to supplement the celery code in times of high load.

tests/app/celery/test_provider_tasks.py

@@ -66,11 +66,10 @@ def test_should_add_to_retry_queue_if_notification_not_found_in_deliver_sms_task
 
 
 def test_should_call_send_sms_to_provider_from_send_sms_to_provider_task(
-    notify_db,
-    notify_db_session,
-    sample_notification,
-    mocker):
-
+        notify_db,
+        notify_db_session,
+        sample_notification,
+        mocker):
     mocker.patch('app.delivery.send_to_providers.send_sms_to_provider')
 
     send_sms_to_provider(sample_notification.service_id, sample_notification.id)
@@ -93,11 +92,10 @@ def test_should_add_to_retry_queue_if_notification_not_found_in_send_sms_to_prov
 
 
 def test_should_call_send_email_to_provider_from_deliver_email_task(
-    notify_db,
-    notify_db_session,
-    sample_notification,
-    mocker):
-
+        notify_db,
+        notify_db_session,
+        sample_notification,
+        mocker):
     mocker.patch('app.delivery.send_to_providers.send_email_to_provider')
 
     deliver_email(sample_notification.id)
@@ -119,11 +117,10 @@ def test_should_add_to_retry_queue_if_notification_not_found_in_deliver_email_ta
 
 
 def test_should_call_send_email_to_provider_from_email_task(
-    notify_db,
-    notify_db_session,
-    sample_notification,
-    mocker):
-
+        notify_db,
+        notify_db_session,
+        sample_notification,
+        mocker):
     mocker.patch('app.delivery.send_to_providers.send_email_to_provider')
 
     send_email_to_provider(sample_notification.service_id, sample_notification.id)

tests/app/delivery/test_rest.py

@@ -0,0 +1,105 @@
+from flask import json
+
+import app
+from tests import create_authorization_header
+
+
+def test_should_reject_if_not_authenticated(notify_api):
+    with notify_api.test_request_context():
+        with notify_api.test_client() as client:
+            response = client.post('/deliver/notification/{}'.format(app.create_uuid()))
+            assert response.status_code == 401
+
+
+def test_should_reject_if_invalid_uuid(notify_api):
+    with notify_api.test_request_context():
+        with notify_api.test_client() as client:
+            auth = create_authorization_header()
+            response = client.post(
+                '/deliver/notification/{}',
+                headers=[auth]
+            )
+        body = json.loads(response.get_data(as_text=True))
+        assert response.status_code == 404
+        assert body['message'] == 'The requested URL was not found on the server.  If you entered the URL manually please check your spelling and try again.'  # noqa
+        assert body['result'] == 'error'
+
+
+def test_should_reject_if_notification_id_cannot_be_found(notify_api):
+    with notify_api.test_request_context():
+        with notify_api.test_client() as client:
+            auth = create_authorization_header()
+            response = client.post(
+                '/deliver/notification/{}'.format(app.create_uuid()),
+                headers=[auth]
+            )
+        body = json.loads(response.get_data(as_text=True))
+        assert response.status_code == 404
+        assert body['message'] == 'No result found'
+        assert body['result'] == 'error'
+
+
+def test_should_call_send_sms_to_provider_as_primary(notify_api, sample_notification, mocker):
+    mocker.patch('app.delivery.send_to_providers.send_sms_to_provider')
+    with notify_api.test_request_context():
+        with notify_api.test_client() as client:
+            auth = create_authorization_header()
+            response = client.post(
+                '/deliver/notification/{}'.format(sample_notification.id),
+                headers=[auth]
+            )
+            app.delivery.send_to_providers.send_sms_to_provider.assert_called_with(sample_notification)
+            assert response.status_code == 204
+
+
+def test_should_call_send_email_to_provider_as_primary(notify_api, sample_email_notification, mocker):
+    mocker.patch('app.delivery.send_to_providers.send_email_to_provider')
+    with notify_api.test_request_context():
+        with notify_api.test_client() as client:
+            auth = create_authorization_header()
+            response = client.post(
+                '/deliver/notification/{}'.format(sample_email_notification.id),
+                headers=[auth]
+            )
+        app.delivery.send_to_providers.send_email_to_provider.assert_called_with(sample_email_notification)
+        assert response.status_code == 204
+
+
+def test_should_call_deliver_sms_task_if_send_sms_to_provider_fails(notify_api, sample_notification, mocker):
+    mocker.patch('app.delivery.send_to_providers.send_sms_to_provider', side_effect=Exception())
+    mocker.patch('app.celery.provider_tasks.deliver_sms.apply_async')
+
+    with notify_api.test_request_context():
+        with notify_api.test_client() as client:
+            auth = create_authorization_header()
+            response = client.post(
+                '/deliver/notification/{}'.format(sample_notification.id),
+                headers=[auth]
+            )
+        app.delivery.send_to_providers.send_sms_to_provider.assert_called_with(sample_notification)
+        app.celery.provider_tasks.deliver_sms.apply_async.assert_called_with(
+            (str(sample_notification.id)), queue='send-sms'
+        )
+        assert response.status_code == 204
+
+
+def test_should_call_deliver_email_task_if_send_email_to_provider_fails(
+        notify_api,
+        sample_email_notification,
+        mocker
+):
+    mocker.patch('app.delivery.send_to_providers.send_email_to_provider', side_effect=Exception())
+    mocker.patch('app.celery.provider_tasks.deliver_email.apply_async')
+
+    with notify_api.test_request_context():
+        with notify_api.test_client() as client:
+            auth = create_authorization_header()
+            response = client.post(
+                '/deliver/notification/{}'.format(sample_email_notification.id),
+                headers=[auth]
+            )
+        app.delivery.send_to_providers.send_email_to_provider.assert_called_with(sample_email_notification)
+        app.celery.provider_tasks.deliver_email.apply_async.assert_called_with(
+            (str(sample_email_notification.id)), queue='send-email'
+        )
+        assert response.status_code == 204