实现test_mql P4节点代数契约

PythonModels/systems/test_mql.py

@@ -3863,6 +3863,7 @@ class TestMqlSystem:
         self.pnl0003_assembly = self._build_pnl0003_assembly()
         self.pnl00r_assembly = self._build_pnl00r_assembly()
         self.node3_assembly = self._build_node3_assembly()
+        self.node4_assembly = self._build_node4_assembly()
         self.pneumatic_assembly = self._build_pneumatic_assembly()
         pneumatic_components = self._pneumatic_components_by_alias()
         for spec in COMPONENT_SPECS:
@@ -3912,6 +3913,12 @@ class TestMqlSystem:
 
         return build_test_mql_node3_assembly()
 
+    @staticmethod
+    def _build_node4_assembly():
+        from PythonModels.systems.test_mql_nodes import build_test_mql_node4_assembly
+
+        return build_test_mql_node4_assembly()
+
     def _pneumatic_components_by_alias(self) -> dict[str, Component]:
         return {
             **self.pneumatic_assembly.fixed_chambers,
@@ -3940,6 +3947,10 @@ class TestMqlSystem:
     def typed_node3_count(self) -> int:
         return len(self.node3_assembly)
 
+    @property
+    def typed_node4_count(self) -> int:
+        return len(self.node4_assembly)
+
     def _pnl0003_spec_for_node_port(self, node_alias: str, port_name: str):
         for spec in self.pnl0003_assembly.specs:
             if spec.source_component == node_alias and spec.source_port == port_name: