Shout out of appreciation for the #Perl module Test::LWP::UserAgent.It allows one to create a wrapper UA to test code that uses an API module for a third-party API by faking the responses to some API calls.
Stayed up too late digging in to a maze of twisty #Cmacros to see if I could implement a 20 year old missing feature that was "planned for #perl 5.12". Today is a two pints of #coffee day.