Update test_page_config

Author: AnastasiaSliusar

jupyterlab_server/handlers.py

@@ -84,7 +84,7 @@ def get_page_config(self) -> dict[str, Any]:
         base_url = self.settings.get("base_url")
         server_app = self.settings.get("serverapp")
         assert server_app is not None
-        if server_app.allow_insecure_kernelspec_params:
+        if hasattr(server_app, "allow_setup_custom_env_variables"):
             allow_setup_custom_env_variables = server_app.allow_setup_custom_env_variables
         else:
             allow_setup_custom_env_variables = False

tests/test_labapp.py

@@ -60,6 +60,7 @@ def ispath(p):
 
     nondirs = {k: v for k, v in page_config.items() if not ispath(k)}
     assert nondirs == {
+        "allow_setup_custom_env_variables": False,
         "appName": "JupyterLab Server Application",
         "appNamespace": "jupyterlab_server",
         "appUrl": "/lab",