补充test_mql气动支路配置接口

tests/test_test_mql_branch_simulation.py

@@ -60,6 +60,32 @@ class TestMqlPneumaticBranchSimulationTests(unittest.TestCase):
             series["sample_branch.flow"][0],
         )
 
+    def test_pneumatic_branch_spec_drives_closure_and_simulation(self) -> None:
+        system = TestMqlSystem()
+        spec = system.pneumatic_branch_spec(
+            name="sample_branch",
+            upstream_volume_alias="pn_general_chamber",
+            orifice_alias="pn_orifice_18",
+            downstream_volume_alias="pn_c1_8",
+            source="manual-test",
+        )
+
+        closure = system.pneumatic_branch_closure_from_spec(spec)
+        solution = system.simulate_pneumatic_branch_from_spec(
+            spec,
+            config=SolveIVPConfig(t_start=0.0, t_stop=1.0e-5, max_step=1.0e-6),
+            t_eval=[0.0, 1.0e-5],
+        )
+        series = system.evaluate_pneumatic_branch_solution_from_spec(solution, spec)
+
+        self.assertIs(closure.components.spec, spec)
+        self.assertEqual(spec.source, "manual-test")
+        self.assertEqual(len(solution.t), 2)
+        self.assertIn("sample_branch.flow", series)
+        self.assertGreater(series["sample_branch.flow"][0], 0.0)
+        self.assertGreater(series["pn_general_chamber.p"][0], series["pn_general_chamber.p"][-1])
+        self.assertLess(series["pn_c1_8.p"][0], series["pn_c1_8.p"][-1])
+
     def test_simulate_pneumatic_branch_rejects_invalid_component_aliases(self) -> None:
         system = TestMqlSystem()