One thing that I think is useful to note here is that docs for CPAN::Reporter state that
"Because cpan-testers uses a mailing list to collect test reports, it is helpful if the email address provided is subscribed to the list. Otherwise, test reports will be held until manually reviewed and approved.
Subscribing an account to the cpan-testers list is as easy as sending a blank email to firstname.lastname@example.org and replying to the confirmation email."
I had installed several modules using CPAN and checked CPAN Testers
and wasn't seeing any sign of my test reports. Frustration was the result-until I decided to RTFM. So sign up for the mailing list: it'll save people some work and you'll get confirmation that you are actually contributing.