Drupal 8 - Frontend Automated Testing

Actually testing is as important as development because we all want to write code that works. So, why not also test our front-end code? To do that we can use some tools as Selenium, Jasmine but I will explain QUnit because it's used in Drupal8 testing. QUnit is a powerful, easy-to-use JavaScript unit testing framework. It's used by the jQuery, jQuery UI, jQuery Mobile projects, also by Drupal, and is capable of testing any generic JavaScript code.