Testing the Multiverse

Accepted Session
Short Form
Scheduled: Wednesday, June 24, 2015 from 3:45 – 4:30pm in B301


It’s a basic principle of testing that minimizing dependencies will make you happier, faster, and more productive.

But what happens when you can’t?


If your code plugs into or extends another gem, comfortable isolation might be out of the question. Stubbing and careful design can carry you a ways, but eventually you need to actually test your code against those gems you’re building on.

Luckily, there are ways to reduce this pain. We’ll dig deep on creating a simple environment to check your work against multiple dependencies. We’ll see patterns that help avoid pulling your hair out when those dependencies change. We’ll even search around the raw edges, examining how to verify what your code does when it lands in an environment you haven’t tested.

There’s a multitude of gems out there to build on. Let’s see how we can test with them!


Ruby, testing

Speaking experience

I've spoken at a number of conferences over the past two years, many of which are online at http://www.confreaks.com/presenters/1621-jason-clark. I also spoke last year at OS Bridge and loved it!