How to test a new Filename Scraping Rule?

I'm trying to add a new rule. First I test it via https://regex101.com/ (on Java settings), this works but when I paste in in comixed as a rule (and put the rule first) the comic is not correctly parsed. I then need to delete the comic and try again. This is very time consuming, so how can a rule be tested easily in the app itself?

Rule: ^([\w[\s][,-]]+)\s-\s([0-9]{1,5})\s-\s+.*\(([0-9]{4})\)$

Filename: Serie name - 357 - Comic Title (1946)