#ruby

Evals: The Unit Tests for the Non-Deterministic Parts of Your App

Building an app on top of a language model means part of your code now returns a different answer every time you run it. Here's how to keep that part honest — with a tiny, complete, runnable Ruby app and a real eval harness that tests it end to end.

Yes! It's 2021, and Ruby 3.0, and Ruby on Rails 6.1 are alive and thriving. Are you?

How to Write Awesome CLI tools in Ruby and test them with RSpec and Aruba

This post details how to use dry-cli gem to create multi-command and sub-command CLI tools, and how to test them using RSpec and Aruba.