降低iDRAC会话压力并开放重试配置

tests/test_fan_controller.py

@@ -49,6 +49,11 @@ class FanControllerConfigTest(unittest.TestCase):
                 with self.assertRaises(ValueError):
                     self.make_controller(invalid_value)
 
+    def test_raw_fan_duty_query_is_disabled_by_default(self):
+        controller = self.make_controller()
+
+        self.assertFalse(controller.use_raw_fan_duty)
+
 
 if __name__ == '__main__':
     unittest.main()

tests/test_start_config.py

@@ -0,0 +1,32 @@
+import os
+import unittest
+from unittest.mock import patch
+
+from start import get_bool_env, get_int_env
+
+
+class StartConfigTest(unittest.TestCase):
+    def test_get_int_env_uses_default_when_missing(self):
+        with patch.dict(os.environ, {}, clear=True):
+            self.assertEqual(get_int_env('CONTROL_INTERVAL_SECONDS', 120), 120)
+
+    def test_get_int_env_rejects_invalid_value(self):
+        with patch.dict(os.environ, {'CONTROL_INTERVAL_SECONDS': 'abc'}, clear=True):
+            with self.assertRaises(RuntimeError):
+                get_int_env('CONTROL_INTERVAL_SECONDS', 120)
+
+    def test_get_bool_env_parses_supported_values(self):
+        with patch.dict(os.environ, {'USE_RAW_FAN_DUTY': 'true'}, clear=True):
+            self.assertTrue(get_bool_env('USE_RAW_FAN_DUTY'))
+
+        with patch.dict(os.environ, {'USE_RAW_FAN_DUTY': 'false'}, clear=True):
+            self.assertFalse(get_bool_env('USE_RAW_FAN_DUTY'))
+
+    def test_get_bool_env_rejects_invalid_value(self):
+        with patch.dict(os.environ, {'USE_RAW_FAN_DUTY': 'maybe'}, clear=True):
+            with self.assertRaises(RuntimeError):
+                get_bool_env('USE_RAW_FAN_DUTY')
+
+
+if __name__ == '__main__':
+    unittest.main()