Protect manifest artifacts in RC10 audit

backend/tests/test_rc10_data_operations.py

@@ -146,6 +146,43 @@ def test_storage_audit_only_selects_old_unreferenced_allowlisted_files(
     assert "release-evidence" in report["cleanup"]["protected_prefixes"]
 
 
+def test_referenced_tile_manifest_protects_its_tiles(tmp_path: Path) -> None:
+    audit = load_script("audit_data_operations.py")
+    storage = tmp_path / "storage"
+    manifest = storage / "tiles" / "dataset" / "set" / "manifest.json"
+    tile = manifest.parent / "tile_0000.tif"
+    tile.parent.mkdir(parents=True)
+    tile.write_bytes(b"tile")
+    manifest.write_text(json.dumps({"tiles": [{"path": "tile_0000.tif"}]}), encoding="utf-8")
+
+    expanded = audit.expand_manifest_references({manifest.resolve()}, storage)
+
+    assert manifest.resolve() in expanded
+    assert tile.resolve() in expanded
+
+
+def test_disk_pressure_uses_absolute_headroom_for_large_arrays(
+    tmp_path: Path,
+    monkeypatch: pytest.MonkeyPatch,
+) -> None:
+    audit = load_script("audit_data_operations.py")
+    monkeypatch.setattr(
+        audit.shutil,
+        "disk_usage",
+        lambda _path: SimpleNamespace(
+            total=56 * 1024**4,
+            used=(56 * 1024**4) - (700 * 1024**3),
+            free=700 * 1024**3,
+        ),
+    )
+
+    pressure = audit.disk_pressure(tmp_path)
+
+    assert pressure["free_percent"] < 2
+    assert pressure["status"] == "ok"
+    assert pressure["acquisition_allowed"] is True
+
+
 def test_source_family_report_covers_national_regional_and_maritime(
     tmp_path: Path,
     monkeypatch: pytest.MonkeyPatch,