Gitlab-CI introduced a flexible and powerful CI solution. My project Giltab CI fo Drupal 8 is meant to ease the integration with a Drupal 8 project. It is now ready to handle a single module or theme and provide a full pipeline for your testing. Here is a brief article to integrate Gitlab-CI with your module in probably less than 10 minutes! This CI includes Drupal testing (Unit, Functional...
Gitlab-ci
JavaScript tests under Drupal 8 with Chrome.