dalizard

Advent of Code 2022 solutions in Perl Ruby

Just for kicks, I'm trying to solve them with semi-golfed Ruby. That is:

• As short as possible, but
• Have some whitespace to make them somewhat readable
• Avoid single-letter identifiers to keep them somewhat readable
• Don't make them too short when they are short enough

Each solution parses the input file and outputs the answer.

dalizard

module Net
  class HTTP
    alias_method(:orig_request, :request) unless method_defined?(:orig_request)

    def request(req, body = nil, &block)
      puts '===== REQUEST ====='
      puts "Request: #{req.method} http://#{@address}:#{@port}#{req.path}"
      puts 'Request headers: '
      req.each_header do |key, value|
        puts "\t#{key}: #{value}"

dalizard

Rules for good testing

Look at the following image...

...it shows an object being tested.

You can't see inside the object. All you can do is send it messages. This is an important point to make because we should be "testing the interface, and NOT the implementation" - doing so will allow us to change the implementation without causing our tests to break.