Should there be a test to p before being a parent?

No, that is a violation of human rights. If you p a law like that then next thing you know you have to only have x number of kids dependant on your income or population levels. It is what communism is "the greater good" sort of focus, eventually spirals downward into a dictatorship and then your rights are done for all together, look at china, and russia, do you want to go there?