Updated structure for tests config files

module/Common/test-db/ApiTest/ApiTestCase.php

@@ -0,0 +1,10 @@
+<?php
+declare(strict_types=1);
+
+namespace ShlinkioTest\Shlink\Common\ApiTest;
+
+use PHPUnit\Framework\TestCase;
+
+abstract class ApiTestCase extends TestCase
+{
+}

module/Common/test-db/DbTest/DatabaseTestCase.php

@@ -1,7 +1,7 @@
 <?php
 declare(strict_types=1);
 
-namespace ShlinkioTest\Shlink\Common\DbUnit;
+namespace ShlinkioTest\Shlink\Common\DbTest;
 
 use Doctrine\ORM\EntityManagerInterface;
 use PHPUnit\Framework\TestCase;
@@ -20,14 +20,12 @@ abstract class DatabaseTestCase extends TestCase
 
     public function tearDown()
     {
-        // Empty all entity tables defined by this test after each test
         foreach (static::ENTITIES_TO_EMPTY as $entityClass) {
             $qb = $this->getEntityManager()->createQueryBuilder();
             $qb->delete($entityClass, 'x');
             $qb->getQuery()->execute();
         }
 
-        // Clear entity manager
         $this->getEntityManager()->clear();
     }
 }