优化仿真求解性能并修复流量闭合问题（初版）

tests/test_generic_system_xml_simulation.py

@@ -298,9 +298,20 @@ class GenericSystemXmlSimulationTests(unittest.TestCase):
             )
         ]
         self.assertLess(max(total_energy) - min(total_energy), 1e-6)
-        self.assertLess(
-            result.diagnostics["pressureFlow"]["maxScaledResidual"],
-            1e-7,
+        pressure_flow = result.diagnostics["pressureFlow"]
+        self.assertLess(pressure_flow["maxScaledResidual"], 1e-7)
+        self.assertEqual(
+            pressure_flow["solveCount"],
+            pressure_flow["seededSolveCount"]
+            + pressure_flow["nonlinearSolveCount"],
+        )
+        self.assertAlmostEqual(
+            pressure_flow["fastPathHitRate"],
+            pressure_flow["seededSolveCount"] / pressure_flow["solveCount"],
+        )
+        self.assertGreaterEqual(
+            pressure_flow["residualEvaluationCount"],
+            pressure_flow["optimizerEvaluationCount"],
         )
 
     def test_cancelled_simulation_returns_accepted_partial_samples(self) -> None: