test contracts

backend/src/core/mapping_service.py

@@ -23,6 +23,21 @@ from src.core.logger import logger, belief_scope
 # [DEF:IdMappingService:Class]
 # @TIER: CRITICAL
 # @PURPOSE: Service handling the cataloging and retrieval of remote Superset Integer IDs.
+#
+# @TEST_CONTRACT: IdMappingServiceModel ->
+# {
+#   required_fields: {db_session: Session},
+#   invariants: [
+#       "sync_environment correctly creates or updates ResourceMapping records",
+#       "get_remote_id returns an integer or None",
+#       "get_remote_ids_batch returns a dictionary of valid UUIDs to integers"
+#   ]
+# }
+# @TEST_FIXTURE: valid_mapping_service -> {"db_session": "MockSession()"}
+# @TEST_EDGE: sync_api_failure -> handles exception gracefully
+# @TEST_EDGE: get_remote_id_not_found -> returns None
+# @TEST_EDGE: get_batch_empty_list -> returns empty dict
+# @TEST_INVARIANT: resilient_fetching -> verifies: [sync_api_failure]
 class IdMappingService:
 
     # [DEF:__init__:Function]