There's an interesting bug happening on Ruby's standard library where this code triggers an exception (and it shouldn't, IMO):
IPAddr.new('::1').freeze.to_range
and here's my attempt to fix it:
https://github.com/ruby/ipaddr/pull/36
Got a lot of fun recalling the networking algebra just for the sake of having tests to support the patch - there were no test for `to_range'
Hello! Using my first toot to link to my PR with a fix for an edge case in Rails that also fixes an old demeter violation. https://github.com/rails/rails/pull/43760
Team Lead at andros.