Writing tests should be easy, but installing and maintaining every single piece needed is nontrivial. Thankfully Docker can provide each piece of the jigsaw: Symfony 3, Behat and PhantomJS.

I use Neovim for all my text editing, and as I'm a web developer I edit a lot of HTML, PHP, CSS and JavaScript. And not only do I have to switch between different programming/markup languages I also have to switch between different environments, ranging from old Drupal 6 sites on Debian squeeze to a Symfony setup on Debian Jessie to ensure that my code works in production.

I have switched from using Vagrant to Docker as my local development environment, and I’m still mentally trying to switch :)