Logging arrays with logger

In drupal 8 for logging we use logger service, to log array data in some readable format, you should use little hack like in drupal 7 adding html code and print_r to array.

First drush driver behat test

With drush driver for behat you will have some more power, basically drush power to do things. So to make out first drush test, you will need to bring some change in behat.yml file and change some lines.

Behat - log in to a site using only blackbox driver

This just another simple test for behat and mink combo with plain blackbox driver. To log in to a site and do check some behavior you can write this simple test, again no PHP needed for it. You will be logged in and checking what is on people admin page. Add it to your some.feature file and run behat.
 

Dependency injection and constructors - what really happens

use Drupal\Core\Controller\ControllerBase;
use Drupal\my_module\SomeClass;
use Symfony\Component\DependencyInjection\ContainerInterface;
use Symfony\Component\HttpFoundation\Response;

class SomeController extends ControllerBase
{
    private $someProperty;

    public function __construct(SomeClass $someProperty)
    {

Drupal 8 - getting what is what

Getting into drupal 8 from drupal 7 is hard. Especially if you are new to OOP, some articles about what is what will help you on that way. I suggest the following in that order