merge: testing → main (reconcile 2-week divergence)

tests/asn/conftest.py

@@ -0,0 +1,22 @@
+"""Per-package fixtures — sandbox the ASN provider into a tmp dir so no
+real /var/lib/decnet paths get touched and no real iptoasn URL gets
+fetched."""
+from __future__ import annotations
+
+from pathlib import Path
+
+import pytest
+
+
+@pytest.fixture(autouse=True)
+def _asn_sandbox(tmp_path: Path, monkeypatch: pytest.MonkeyPatch) -> Path:
+    monkeypatch.setenv("DECNET_ASN_ENABLED", "true")
+    monkeypatch.setenv("DECNET_ASN_ROOT", str(tmp_path))
+    import decnet.asn as _a
+    import decnet.asn.factory as _f
+    import decnet.asn.paths as _p
+    monkeypatch.setattr(_p, "ASN_ROOT", tmp_path)
+    _a._lookup = None
+    _a._provider_name = None
+    _f.reset_cache()
+    return tmp_path