装配test_mql气动元件

tests/test_test_mql_pneumatic.py

@@ -0,0 +1,68 @@
+from __future__ import annotations
+
+import unittest
+
+from PythonModels.components.amesim_pneumatic import HELIUM_PNEUMATIC_GAS
+from PythonModels.systems.test_mql_pneumatic import (
+    build_test_mql_pneumatic_assembly,
+    pressure_from_amesim_bar_parameter,
+)
+
+
+class TestMqlPneumaticAssemblyTests(unittest.TestCase):
+    def test_assembles_expected_amesim_pneumatic_component_counts(self) -> None:
+        assembly = build_test_mql_pneumatic_assembly()
+
+        self.assertEqual(len(assembly.fixed_chambers), 4)
+        self.assertEqual(len(assembly.variable_chambers), 8)
+        self.assertEqual(len(assembly.fixed_orifices), 8)
+        self.assertEqual(len(assembly.variable_orifices), 8)
+        self.assertEqual(assembly.component_count, 28)
+        self.assertIn("pn_general_chamber", assembly.aliases)
+        self.assertIn("pn_c1_8", assembly.aliases)
+        self.assertIn("pn_orifice_18", assembly.aliases)
+        self.assertIn("pn_morifice_11", assembly.aliases)
+
+    def test_uses_amesim_global_initial_pressure_convention(self) -> None:
+        assembly = build_test_mql_pneumatic_assembly()
+
+        self.assertAlmostEqual(
+            pressure_from_amesim_bar_parameter(153.0),
+            15198700.0,
+        )
+        self.assertAlmostEqual(assembly.initial_pressure_pa, 15198700.0)
+
+    def test_chamber_parameters_are_resolved_in_si_units(self) -> None:
+        assembly = build_test_mql_pneumatic_assembly()
+        fixed_chamber = assembly.fixed_chambers["pn_general_chamber"]
+        variable_chamber = assembly.variable_chambers["pn_c1_8"]
+
+        self.assertAlmostEqual(fixed_chamber.volume, 0.057)
+        self.assertAlmostEqual(variable_chamber.volume, 0.015)
+        self.assertIs(fixed_chamber.gas, HELIUM_PNEUMATIC_GAS)
+        self.assertIs(variable_chamber.gas, HELIUM_PNEUMATIC_GAS)
+        self.assertAlmostEqual(fixed_chamber.properties().T, 293.15)
+        self.assertAlmostEqual(variable_chamber.properties().T, 293.15)
+
+    def test_orifice_parameters_are_resolved_in_si_units(self) -> None:
+        assembly = build_test_mql_pneumatic_assembly()
+        fixed_orifice = assembly.fixed_orifices["pn_orifice_18"]
+        variable_orifice = assembly.variable_orifices["pn_morifice_11"]
+
+        self.assertAlmostEqual(fixed_orifice.area, 78.5e-6)
+        self.assertAlmostEqual(fixed_orifice.flow_coefficient, 0.9)
+        self.assertAlmostEqual(variable_orifice.area, 78.5e-6)
+        self.assertAlmostEqual(variable_orifice.flow_coefficient, 0.45)
+        self.assertAlmostEqual(variable_orifice.opening, 1.0)
+
+    def test_assembled_orifice_can_compute_helium_mass_flow(self) -> None:
+        assembly = build_test_mql_pneumatic_assembly()
+        fixed_orifice = assembly.fixed_orifices["pn_orifice_18"]
+
+        flow = fixed_orifice.mass_flow(15.0e6, 10.0e6, 293.15)
+
+        self.assertGreater(flow, 0.0)
+
+
+if __name__ == "__main__":
+    unittest.main()