You may want to create your own abstract base test classes for your Drupal website. For example you may want to add a method that can be shared by all end to end tests, client, etc.
Place your extended classes in the src directory of this project like so. Place it in a folder that is namespaced with a logical name related to your project.
.
└── src
├── DrupalTest
│ ├── ...
└── module_name
├── ClientTestCase.php
├── EndToEndTestCase.php
├── KernelTestCase.php
└── UnitTestCase.php
Make sure your classes do extend the parent:
<?php
namespace Drupal\Tests\module_name;
use \AKlump\DrupalTest\ClientTestCase as Parent;
abstract class ClientTest extends Parent {
...
Add your namespace to drupal_test_config.yml.
Now create your test classes using your extended base class instead, e.g.,
<?php
namespace Drupal\Tests\module_name\Metrics;
use Drupal\Tests\module_name\ClientTestCase;
/**
* Client coverage for Curriculum.
*
* @group module_name
* @SuppressWarnings(PHPMD.StaticAccess)
* @SuppressWarnings(PHPMD.TooManyPublicMethods)
*/
class CurriculumClientTest extends ClientTestCase {
...