Optimize regional BWK municipality selection

backend/tests/test_sprint210_regional_bwk_natura2000.py

@@ -9,6 +9,9 @@ import sys
 import pytest
 from shapely.geometry import box, mapping, shape
 
+from app.models import Dataset
+from app.services.vector_feature_service import VectorFeatureService
+
 
 ROOT = Path(__file__).resolve().parents[2]
 SCRIPTS = ROOT / "scripts"
@@ -240,3 +243,28 @@ def test_regional_operator_is_packaged_release_checked_and_exact_area_is_preferr
     assert '"provision_regional_bwk_natura2000.py"' in service
     assert "dataset.area_id === selectedAreaId ? 10_000_000" in workspace
     assert "largestBwkSnapshot" in catalog
+
+
+def test_regional_bwk_uses_only_canonical_preclipped_municipality_partitions() -> None:
+    dataset = Dataset(
+        name="regional-bwk.geojson",
+        dataset_type="vector",
+        status="ready",
+        source_metadata={
+            "partitioned_source_audit": True,
+            "geometry_clipped_to_area": True,
+        },
+        provenance_metadata={"operator_tool": "provision_regional_bwk_natura2000.py"},
+    )
+
+    assert VectorFeatureService.preclipped_partition_filter(
+        dataset, "Gemeente Mol - officiële grens"
+    ) == ("municipality", "Mol")
+    assert VectorFeatureService.preclipped_partition_filter(
+        dataset, "Vervoerregio Kempen - officiële operationele grens"
+    ) is None
+
+    dataset.provenance_metadata = {"operator_tool": "unrelated_operator.py"}
+    assert VectorFeatureService.preclipped_partition_filter(
+        dataset, "Gemeente Mol - officiële grens"
+    ) is None