feat: 完善 N7 智能座舱交互与控制链路

tests/unit/test_wired_dual_channel_can.py

@@ -1,6 +1,7 @@
 from __future__ import annotations
 
 import os
+import tempfile
 import unittest
 from pathlib import Path
 from types import SimpleNamespace
@@ -85,8 +86,13 @@ class _SeatExecutor:
 
 
 class WiredDualChannelCanTests(unittest.TestCase):
-    @staticmethod
-    def _linux_environment() -> dict[str, str]:
+    def setUp(self) -> None:
+        self._temporary_directory = tempfile.TemporaryDirectory()
+        self.addCleanup(self._temporary_directory.cleanup)
+        self._linux_library = Path(self._temporary_directory.name) / "libusbcanfd.so"
+        self._linux_library.touch()
+
+    def _linux_environment(self) -> dict[str, str]:
         return {
             "COGNITIVE_AGENT_VEHICLE_CAN_ENABLED": "true",
             "COGNITIVE_AGENT_VEHICLE_CAN_BACKEND": "zlgcan-linux",
@@ -95,9 +101,7 @@ class WiredDualChannelCanTests(unittest.TestCase):
             "COGNITIVE_AGENT_VEHICLE_CAN_CHANNEL": "1",
             "COGNITIVE_AGENT_HARDWARE_APPROVAL_TOKEN_REQUIRED": "false",
             "COGNITIVE_AGENT_ZLGCAN_PYTHON": os.sys.executable,
-            "COGNITIVE_AGENT_ZLGCAN_LINUX_LIBRARY": str(
-                REPOSITORY_ROOT.parent / "project-code" / "canfd" / "libusbcanfd.so"
-            ),
+            "COGNITIVE_AGENT_ZLGCAN_LINUX_LIBRARY": str(self._linux_library),
             "COGNITIVE_AGENT_SHARED_CAN_RUNTIME_ENABLED": "false",
         }