Codegen: fix test

misc/codegen/lib/schema.py

@@ -94,7 +94,7 @@ class Class:
     default_doc_name: Optional[str] = None
     hideable: bool = False
     test_with: Optional[str] = None
-    rust_doc_test_function: Optional["FunctionInfo"] = None  # TODO: parametrized pragmas
+    rust_doc_test_function: Optional["FunctionInfo"] = "() -> ()"  # TODO: parametrized pragmas
 
     @property
     def final(self):

misc/codegen/loaders/schemaloader.py

@@ -56,7 +56,8 @@ def _get_class(cls: type) -> schema.Class:
                         ],
                         doc=schema.split_doc(cls.__doc__),
                         default_doc_name=cls.__dict__.get("_doc_name"),
-                        rust_doc_test_function=cls.__dict__.get("_rust_doc_test_function", "() -> ()")
+                        rust_doc_test_function=cls.__dict__.get("_rust_doc_test_function",
+                                                                schema.Class.rust_doc_test_function)
                         )