Add service events tests

Author: lippytm

backend/tests/test_service_events.py

@@ -0,0 +1,13 @@
+from backend.app.routes.service_events import publish_service_event, ServiceEventRequest
+
+
+def test_publish_service_event_returns_accepted_status():
+    request = ServiceEventRequest(
+        event_type='service.completed',
+        product_code='svc_basic',
+        customer_reference='cust_1',
+        service_receipt_id='srv_1',
+    )
+    response = publish_service_event(request)
+    assert response.status == 'accepted'
+    assert response.service_receipt_id == 'srv_1'