Since many years the ruby community asked to have branch coverage. That’s something that if you worked a little bit with JS frameworks you really missed. If you don’t miss it, you probably don’t know what is branch coverage and therefore you are in the right place

The command pattern is a behavior design pattern used to store the information necessary to call methods at a future time.

How do you go about debugging high CPU usage in a production Rails system?

There’s no dearth of information or best-practices or books about how best to test software. This post, however, focuses solely on testing backend services and not desktop software or safety critical systems or GUI tools or frontend applications and what have you

The employee who accidentally triggered the missile alert on Saturday pushed the wrong button. It was a disastrous mistake that sent Americans panicking and running for shelter. Needless to say this is the kind of accident that should be avoided at all costs

Good software is uncommon because writing it is hard. In the abstract, we all know that it is hard. We talk incessantly about how it’s hard. And yet, we also collectively seem shocked — just shocked! — when the expectable happens and the software we’re exposed to or is working on turns out poor.