Add unit tests for osism/tasks/conductor/sonic/interface detection

tests/unit/tasks/conductor/sonic/_detection_helpers.py

@@ -0,0 +1,43 @@
+# SPDX-License-Identifier: Apache-2.0
+
+"""Shared NetBox-stub helpers for the interface-detection test modules.
+
+Used by ``test_breakout_detection`` and ``test_port_channel_detection``;
+the module is private (``_``-prefixed) so pytest does not collect it.
+"""
+
+from types import SimpleNamespace
+
+
+def _make_sonic_device(device_id=1, name="sw1", hwsku="TEST-HWSKU"):
+    """Build a NetBox device stub carrying ``custom_fields.sonic_parameters.hwsku``."""
+    return SimpleNamespace(
+        id=device_id,
+        name=name,
+        custom_fields={"sonic_parameters": {"hwsku": hwsku}},
+    )
+
+
+def _make_iface(name, *, speed=None, type_value=None, lag=None):
+    """Build a NetBox-shaped interface stub.
+
+    ``type_value`` becomes ``interface.type.value`` (set ``None`` for no type),
+    ``speed`` mirrors ``interface.speed``, and ``lag`` is the LAG-parent stub.
+    """
+    return SimpleNamespace(
+        name=name,
+        speed=speed,
+        type=SimpleNamespace(value=type_value) if type_value else None,
+        lag=lag,
+    )
+
+
+def _make_lag(name, lag_id=99):
+    """Build a LAG-typed parent interface stub (``type.value == "lag"``)."""
+    return SimpleNamespace(
+        name=name,
+        id=lag_id,
+        speed=None,
+        type=SimpleNamespace(value="lag"),
+        lag=None,
+    )