fix: close Walloon terrain provisioning

backend/tests/test_spw_terrain_service.py

@@ -102,11 +102,23 @@ def make_source(path: Path) -> list[float]:
     return [min_lon, min_lat, max_lon, max_lat]
 
 
+def write_source_checksum(source_dir: Path) -> str:
+    digest = "a" * 64
+    (source_dir / SpwTerrainService.SOURCE_SHA256_FILENAME).write_text(
+        f"{digest}  {SpwTerrainService.SOURCE_FILENAME}\n", encoding="ascii"
+    )
+    return digest
+
+
 def test_spw_terrain_registry_reports_real_source_state(tmp_path: Path) -> None:
     before = SpwTerrainService.list_products(settings=settings(tmp_path))[0]
     assert before["status"] == "source_not_provisioned"
 
     make_source(tmp_path / SpwTerrainService.SOURCE_FILENAME)
+    without_checksum = SpwTerrainService.list_products(settings=settings(tmp_path))[0]
+    assert without_checksum["configured"] is False
+
+    write_source_checksum(tmp_path)
     after = SpwTerrainService.list_products(settings=settings(tmp_path))[0]
 
     assert after["configured"] is True
@@ -119,6 +131,7 @@ def test_spw_terrain_acquisition_persists_bounded_dng_raster_and_provenance(
     tmp_path: Path, monkeypatch
 ) -> None:
     bbox = make_source(tmp_path / SpwTerrainService.SOURCE_FILENAME)
+    source_digest = write_source_checksum(tmp_path)
     project = Project(id=uuid4(), name="Belgium")
     captured = {}
 
@@ -150,6 +163,8 @@ def test_spw_terrain_acquisition_persists_bounded_dng_raster_and_provenance(
     assert captured["source_metadata"]["vertical_unit_label"] == "m DNG"
     assert captured["source_metadata"]["coverage_zones"] == ["wallonia"]
     assert captured["provenance_metadata"]["resampling"] == "bilinear"
+    assert captured["provenance_metadata"]["source_sha256"] == source_digest
+    assert captured["temporal_granularity"] == "period"
     assert captured["valid_from"].date().isoformat() == "2021-02-19"
     with rasterio.MemoryFile(captured["content"]) as memory:
         with memory.open() as derived: