Modifying your code so I can run this ... I get Illegal value 'invalid_value' for field 'new_animals' at C:/Perl/site/lib/WWW/Mechanize.pm line 541 (you should've mentioned the error message you got).
You're right, I should have included the error message. I did mention that HTML::Form performed as advertized, but I see now that it was not very clear.
So what do I do, that's right, I bust out Data::Dumper and discover (via ->find_input). Can you guess what I'd try next?
You want me to play with the class data directly??? I guess I may need to resort to that, but that would make my code brittle. I guess HTML::Form is stable enough that it's internal class data will probably not change in the future, but that is somethng I can not guarantee... I guess it if does happen my test will just fail, and I will be notified that there is a problem and can hunt it down, so it's not terrible.