Welcome - Monkey and Crow

This article references Rails 5 , Rails UJS 1.2.1 , and Rack 2.0.0.rc1 . Some code snippets have been abbreviated for clarity.
We're going to take a slightly different focus today, and look at the intersection of Rails, Rails-UJS, and Rack. These libraries work seamlessly together to provide functionality you probably take for granted. We'll also meander along a few detours...

Computer Science 601: Homo Sapien Communication Protocols
Sooner or later someone will ask you to do something you disagree with. Maybe it will lead to horrible performance, require excessive effort, or simply not solve the problem at hand. Sometimes we need to say no, but we need to say it well. It's not easy...

Previously we talked about several ways tests could fail indeterminately. Today we'll look at three ways Ruby's flexibility can lead to bizarre test behavior, and some really simple solutions.
Method Clobbering
I have to admit, when I write a new test I often just copy a similar one. This is of course expedient, but it comes with some risk. Pretend we're testing our new Fruit class. The basic rule appears to be that the presence of an a indicates whether a...

Too often we treat testing as an all or nothing activity. If you aren't in the habit of writing tests, or just find it frustrating, then it feels like a lost cause.
One of the best ways to add useful tests to your application is to write one each time you fix a bug. These tests cover real world problems, and verify when the issue is fixed....