We all know Drupal and Symfony do have multilingual support (i18n, l10n, pluralization). But do they match? Or do they equally well? How does one test this? This is what I did. I wanted to add tests for Symfonfy's PluralizationRules as there were none and I wanted to have support for PluralForms loading Drupals *.po files clean and simple. How hard can it be?!? These tests should cover:

1. Langcodes. Are all known language codes available (or easy to add)?
2. Parsing Gettext PluralForm rules like

While still working on D8MI Let Symfony Translation component handle language messages I needed to code for Symfony to on the Translation component. So how does that work writing and testing Symfony code?

Download Symfony

cd /tmp
git clone https://github.com/symfony/symfony.git 
cd symfony
ls

Dependency management

One of the goals of Drupal 8 Multilingual Inititive is to refactor Gettext file handling by a component. The first effort was Make gettext .po generation its own abstracted functionality by Gábor Hojtsy, Sutharsan, fubhy, sun and clemens.tolboom While I (clemens.tolboom) was working on that issue I skimmed over the Translation component delivered by Symfony to see whether we could match their architecture (why reinvent components?) or even take over their components.