Description

Invoked user-defined validation function implemented in Python. This test currently succeeds because we aren't properly checking the output. We should check the output, but that's beside the point. This test should be rewritten to invoke the user-defined validation function in JS instead of Python.

Desired behavior/Acceptance criteria

• user-defined validation function test is written in JS

Completion checklist

• Before closing this task, review one by one the checklist available here: https://www.mediawiki.org/wiki/Abstract_Wikipedia_team/Definition_of_Done#Front-end_Task/Bug_Completion_Checklist