Report unobservable features on export

Author: TonisOrmisson

src/openstatspec/spss/sav.py

@@ -146,7 +146,7 @@ def _import_loss_report(meta: Any) -> tuple[dict[str, str], ...]:
 
 
 def _export_loss_report(dataset: dict[str, Any], variables: list[dict[str, Any]]) -> tuple[dict[str, str], ...]:
-    events = []
+    events = [{"code": "unobservable-source-dictionary-features", "detail": "Variable sets and custom file/variable attributes are not observable through the reader and therefore cannot be restored by export."}]
     if dataset["multiple_response_sets"] != "{}":
         events.append({"code": "multiple-response-sets-not-exported", "detail": "The SAV writer has no multiple-response-set output capability."})
     if any(item.get("alignment") not in (None, "unknown") for item in variables):

tests/test_loss_reports.py

@@ -26,5 +26,5 @@ def test_export_reports_unwritable_spss_dictionary_features(tmp_path) -> None:
     connection = sqlite3.connect(tmp_path / "dataset.sqlite")
     assert connection.execute("select set_name, member_ordinal, variable_name from multiple_response_set_catalog").fetchall() == [("set1", 1, None)]
     assert {event["code"] for event in result["loss_report"]} == {
-        "multiple-response-sets-not-exported", "variable-alignment-not-exported"
+        "multiple-response-sets-not-exported", "variable-alignment-not-exported", "unobservable-source-dictionary-features"
     }