Safely Call Superclass Methods from Ruby Modules
In today’s RubyTapas throwback, we tackle a metaprogramming topic. How do you reliably call superclass methods from included modules… when you can’t know for sure if those methods exist, or…
That’s So Fetch
It’s time for another dip into the RubyTapas archives! In this third and last episode on Ruby’s #fetch family of methods, now free to all, we get into some advanced…
Controlling superclass argument pass-through in Ruby
In Ruby class-based programming, superclass versions of subclass methods are always invoked explicitly using the super keyword. There are some nuances to using super though, particularly when it comes to…
Ruby Singleton Objects
Here’s another freebie from the deep RubyTapas stacks. This one is about a truth of object modeling that we don’t often talk about: not every object needs to have state….
Why and how to use Ruby’s Hash#fetch for default values
Here’s another classic from the early days of RubyTapas. Originally published as Episode #11 in October 2012, it’s a complement to the episode on using fetch as an assertion. This…
Alternative Ruby Symbol Literals
Periodically I take episodes from the RubyTapas archives and publish them for free. This episode from October 2012 is about symbol literals, and how you can use alternative quoting syntax…
Rails 6 System Tests, From Top to Bottom
Selenium! Capybara! Webdriver! chromedriver! …there are a LOT of moving parts in Rails system tests. Let’s break it down, layer by layer.
What is the Ruby Legacy?
The world is changed, I feel it in the water, I feel it in the earth. I smell it in the air. —Galadriel
How to relax your Ruby version specification in your Gemfile
Have you ever run into this error? Your Ruby version is 2.6.1, but your Gemfile specified 2.6.3 Annoying, right? You know your Ruby version is new enough to run this…
Test-Driven Re-implementation with Josh Thompson
Yesterday Josh Thompson, one of my Rubber Duck Session clients, proposed a novel idea for deliberately practicing coding skills: take a popular open-source project with a good test suite, delete…