Having a political education test before being allowed to vote

Who writes and administers the test? And who ensures everyone has equal access to education so a non-voting underclass isn’t created?

The United States used to have a “voting literacy test”. It existed to keep non-whites from voting as it was practically impossible to pass so it was at the clerk’s discretion who could or could not vote.

I am not saying it’s a good idea and implementation would be hard. But it is an idea

I’m for it, assuming everyone has equal access to a robust, non-biased education and sufficient resources to have the time and energy to utilize it; the test isn’t designed to exclude by race, class, gender, etc.; and it is designed to simply ascertain whether or not a person is capable of self-directed, rational decision making versus voting for the prettiest or most charismatic candidate or the candidate who will “hurt the right people”.