补充test_mql PNVO焓流诊断与系数校正

tests/test_amesim_pneumatic_components.py

@@ -4,6 +4,7 @@ import unittest
 
 from PythonModels.components.amesim_pneumatic import (
     HELIUM_PNEUMATIC_GAS,
+    AmesimPneumaticGas,
     AmesimPneumaticOrifice,
     AmesimPneumaticVolume,
     AmesimVariablePneumaticVolume,
@@ -26,6 +27,40 @@ class AmesimPneumaticComponentsTest(unittest.TestCase):
         self.assertAlmostEqual(mm2_to_m2(78.5), 78.5e-6)
         self.assertAlmostEqual(diameter_mm_to_area_m2(10.0), 7.853981633974483e-5)
 
+    def test_reference_enthalpy_uses_amesim_operating_temperature_baseline(self) -> None:
+        gas = AmesimPneumaticGas(cp=5193.0, cv=3116.0)
+
+        self.assertAlmostEqual(gas.specific_reference_enthalpy(298.15), 0.0)
+        self.assertAlmostEqual(
+            gas.specific_reference_enthalpy(290.2036),
+            5193.0 * (290.2036 - 298.15),
+        )
+        self.assertAlmostEqual(
+            gas.reference_temperature_from_specific_enthalpy(
+                gas.specific_reference_enthalpy(287.7322),
+            ),
+            287.7322,
+        )
+
+    def test_pressure_reference_enthalpy_includes_real_gas_departure(self) -> None:
+        gas = AmesimPneumaticGas(cp=5193.0, cv=3116.0)
+
+        ideal_reference_h = gas.specific_reference_enthalpy(287.7322)
+        pressure_reference_h = gas.pressure_reference_enthalpy(13_839_965.0, 287.7322)
+
+        self.assertAlmostEqual(ideal_reference_h, -54099.6354, delta=0.001)
+        self.assertAlmostEqual(
+            pressure_reference_h - ideal_reference_h,
+            11936.1,
+            delta=0.1,
+        )
+
+    def test_reference_temperature_from_enthalpy_rejects_non_positive_cp(self) -> None:
+        gas = AmesimPneumaticGas(cp=0.0, cv=3116.0)
+
+        with self.assertRaisesRegex(ValueError, "cp must be positive"):
+            gas.reference_temperature_from_specific_enthalpy(42.0)
+
     def test_volume_initial_state_matches_requested_pressure_temperature(self) -> None:
         volume = AmesimPneumaticVolume.from_liters(
             name="pn_general_chamber",