diff --git a/tests/Controller/ApiControllerTest.php b/tests/Controller/ApiControllerTest.php
index 13b240b..cd55607 100755
--- a/tests/Controller/ApiControllerTest.php
+++ b/tests/Controller/ApiControllerTest.php
@@ -24,6 +24,7 @@ use phpOMS\DataStorage\Session\HttpSession;
 use phpOMS\Dispatcher\Dispatcher;
 use phpOMS\Event\EventManager;
 use phpOMS\Localization\ISO639x1Enum;
+use phpOMS\Localization\L11nManager;
 use phpOMS\Message\Http\HttpRequest;
 use phpOMS\Message\Http\HttpResponse;
 use phpOMS\Message\Http\RequestStatusCode;
@@ -66,6 +67,7 @@ final class ApiControllerTest extends \PHPUnit\Framework\TestCase
         $this->app->eventManager   = new EventManager($this->app->dispatcher);
         $this->app->eventManager->importFromFile(__DIR__ . '/../../../../Web/Api/Hooks.php');
         $this->app->sessionManager = new HttpSession(36000);
+        $this->app->l11nManager    = new L11nManager();
 
         $account = new Account();
         TestUtils::setMember($account, 'id', 1);
diff --git a/tests/Models/ContractTypeL11nTest.php b/tests/Models/ContractTypeL11nTest.php
deleted file mode 100755
index 79b1241..0000000
--- a/tests/Models/ContractTypeL11nTest.php
+++ /dev/null
@@ -1,87 +0,0 @@
-<?php
-/**
- * Karaka
- *
- * PHP Version 8.1
- *
- * @package   tests
- * @copyright Dennis Eichhorn
- * @license   OMS License 2.0
- * @version   1.0.0
- * @link      https://jingga.app
- */
-declare(strict_types=1);
-
-namespace Modules\ContractManagement\tests\Models;
-
-use Modules\ContractManagement\Models\ContractTypeL11n;
-use phpOMS\Localization\ISO639x1Enum;
-
-/**
- * @internal
- */
-final class ContractTypeL11nTest extends \PHPUnit\Framework\TestCase
-{
-    private ContractTypeL11n $l11n;
-
-    /**
-     * {@inheritdoc}
-     */
-    protected function setUp() : void
-    {
-        $this->l11n = new ContractTypeL11n();
-    }
-
-    /**
-     * @covers Modules\ContractManagement\Models\ContractTypeL11n
-     * @group module
-     */
-    public function testDefault() : void
-    {
-        self::assertEquals(0, $this->l11n->getId());
-        self::assertEquals('', $this->l11n->title);
-        self::assertEquals(0, $this->l11n->type);
-        self::assertEquals(ISO639x1Enum::_EN, $this->l11n->getLanguage());
-    }
-
-    /**
-     * @covers Modules\ContractManagement\Models\ContractTypeL11n
-     * @group module
-     */
-    public function testNameInputOutput() : void
-    {
-        $this->l11n->title = 'TestName';
-        self::assertEquals('TestName', $this->l11n->title);
-    }
-
-    /**
-     * @covers Modules\ContractManagement\Models\ContractTypeL11n
-     * @group module
-     */
-    public function testLanguageInputOutput() : void
-    {
-        $this->l11n->setLanguage(ISO639x1Enum::_DE);
-        self::assertEquals(ISO639x1Enum::_DE, $this->l11n->getLanguage());
-    }
-
-    /**
-     * @covers Modules\ContractManagement\Models\ContractTypeL11n
-     * @group module
-     */
-    public function testSerialize() : void
-    {
-        $this->l11n->title  = 'Title';
-        $this->l11n->type   = 2;
-        $this->l11n->setLanguage(ISO639x1Enum::_DE);
-
-        self::assertEquals(
-            [
-                'id'        => 0,
-                'title'     => 'Title',
-                'type'      => 2,
-                'language'  => ISO639x1Enum::_DE,
-            ],
-            $this->l11n->jsonSerialize()
-        );
-    }
-}
diff --git a/tests/Models/ContractTypeTest.php b/tests/Models/ContractTypeTest.php
index ab9ba80..6c2b259 100755
--- a/tests/Models/ContractTypeTest.php
+++ b/tests/Models/ContractTypeTest.php
@@ -16,6 +16,7 @@ namespace Modules\ContractManagement\tests\Models;
 
 use Modules\ContractManagement\Models\ContractType;
 use Modules\ContractManagement\Models\ContractTypeL11n;
+use phpOMS\Localization\BaseStringL11n;
 
 /**
  * @internal
@@ -51,7 +52,7 @@ final class ContractTypeTest extends \PHPUnit\Framework\TestCase
         $this->type->setL11n('Test');
         self::assertEquals('Test', $this->type->getL11n());
 
-        $this->type->setL11n(new ContractTypeL11n(0, 'NewTest'));
+        $this->type->setL11n(new BaseStringL11n('NewTest'));
         self::assertEquals('NewTest', $this->type->getL11n());
     }
 
@@ -61,12 +62,10 @@ final class ContractTypeTest extends \PHPUnit\Framework\TestCase
      */
     public function testSerialize() : void
     {
-        $this->type->type = 1;
-
         self::assertEquals(
             [
                 'id'       => 0,
-                'l11n'     => new ContractTypeL11n(),
+                'l11n'     => new BaseStringL11n(),
             ],
             $this->type->jsonSerialize()
         );
diff --git a/tests/Models/NullContractTypeL11nTest.php b/tests/Models/NullContractTypeL11nTest.php
deleted file mode 100755
index 070b3de..0000000
--- a/tests/Models/NullContractTypeL11nTest.php
+++ /dev/null
@@ -1,42 +0,0 @@
-<?php
-/**
- * Karaka
- *
- * PHP Version 8.1
- *
- * @package   tests
- * @copyright Dennis Eichhorn
- * @license   OMS License 2.0
- * @version   1.0.0
- * @link      https://jingga.app
- */
-declare(strict_types=1);
-
-namespace Modules\ContractManagement\tests\Models;
-
-use Modules\ContractManagement\Models\NullContractTypeL11n;
-
-/**
- * @internal
- */
-final class NullContractTypeL11nTest extends \PHPUnit\Framework\TestCase
-{
-    /**
-     * @covers Modules\ContractManagement\Models\NullContractTypeL11n
-     * @group framework
-     */
-    public function testNull() : void
-    {
-        self::assertInstanceOf('\Modules\ContractManagement\Models\ContractTypeL11n', new NullContractTypeL11n());
-    }
-
-    /**
-     * @covers Modules\ContractManagement\Models\NullContractTypeL11n
-     * @group framework
-     */
-    public function testId() : void
-    {
-        $null = new NullContractTypeL11n(2);
-        self::assertEquals(2, $null->getId());
-    }
-}