April 2016
Intermediate to advanced
222 pages
4h 30m
English
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Testing mixins with dummy containers
Ruby's mixin functionality can be very useful. Modules can group together useful features that can be added at runtime to any class. However, given the dynamic nature of Ruby, testing the mixin features of a module can be tricky.
Let's go back to the AddressValidator module we worked with in previous sections of this chapter and in Chapter 1, Exploring Testability from Unit Tests to Behavior-Driven Development and Chapter 2, Specifying Behavior with Examples and Matchers. We want to make this module into a mixin that we can add to any object with an address method. Then we can call address_valid? on the object to trigger all the validations.
Regardless of the complexity of the metaprogramming involved with a ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.