diff --git a/Controller/ApiController.php b/Controller/ApiController.php
index 0c97ee8..7d98bf4 100755
--- a/Controller/ApiController.php
+++ b/Controller/ApiController.php
@@ -31,6 +31,7 @@ use Modules\Media\Models\PathSettings;
 use Modules\ContractManagement\Models\Contract;
 use Modules\ContractManagement\Models\NullContractType;
 use Modules\ContractManagement\Models\ContractMapper;
+use phpOMS\Localization\ISO639x1Enum;
 
 /**
  * Api controller for the contracts module.
@@ -186,7 +187,6 @@ final class ApiController extends Controller
         }
 
         $contractType = $this->createContractTypeFromRequest($request);
-        $contractType->setL11n($request->getData('title'), $request->getData('language'));
         $this->createModel($request->header->account, $contractType, ContractTypeMapper::class, 'contract_type', $request->getOrigin());
 
         $this->fillJsonResponse($request, $response, NotificationLevel::OK, 'Contract type', 'Contract type successfully created', $contractType);
@@ -204,6 +204,7 @@ final class ApiController extends Controller
     private function createContractTypeFromRequest(RequestAbstract $request) : ContractType
     {
         $contractType = new ContractType();
+        $contractType->setL11n($request->getData('title'), $request->getData('language') ?? ISO639x1Enum::_EN);
 
         return $contractType;
     }
@@ -287,7 +288,9 @@ final class ApiController extends Controller
     private function validateContractTypeL11nCreate(RequestAbstract $request) : array
     {
         $val = [];
-        if (($val['title'] = empty($request->getData('title')))) {
+        if (($val['title'] = empty($request->getData('title')))
+            || ($val['type'] = empty($request->getData('type')))
+        ) {
             return $val;
         }
 
diff --git a/Models/Contract.php b/Models/Contract.php
index 6506b2f..d9c88cb 100755
--- a/Models/Contract.php
+++ b/Models/Contract.php
@@ -49,7 +49,7 @@ class Contract
 
     public string $description = '';
 
-    public \DateTime $start;
+    public ?\DateTime $start = null;
 
     public ?\DateTime $end = null;
 
@@ -82,6 +82,7 @@ class Contract
     {
         $this->createdAt = new \DateTimeImmutable('now');
         $this->account   = new NullAccount();
+        $this->type      = new ContractType();
     }
 
     /**
@@ -127,7 +128,19 @@ class Contract
      */
     public function toArray() : array
     {
-        return [];
+        return [
+            'id' => $this->id,
+            'title' => $this->title,
+            'description' => $this->description,
+            'start' => $this->start,
+            'end' => $this->end,
+            'duration' => $this->duration,
+            'warning' => $this->warning,
+            'responsible' => $this->responsible,
+            'createdAt' => $this->createdAt,
+            'costs' => $this->costs,
+            'type' => $this->type,
+        ];
     }
 
     /**
diff --git a/Models/ContractType.php b/Models/ContractType.php
index e700dfe..27eb374 100755
--- a/Models/ContractType.php
+++ b/Models/ContractType.php
@@ -45,15 +45,13 @@ class ContractType implements \JsonSerializable, ArrayableInterface
     /**
      * Constructor.
      *
-     * @param string $name Name/identifier of the attribute type
+     * @param string $name Name
      *
      * @since 1.0.0
      */
     public function __construct(string $name = '')
     {
-        if (!empty($name)) {
-            $this->setL11n($name);
-        }
+        $this->setL11n($name);
     }
 
     /**
@@ -106,7 +104,10 @@ class ContractType implements \JsonSerializable, ArrayableInterface
      */
     public function toArray() : array
     {
-        return [];
+        return [
+            'id' => $this->id,
+            'l11n' => $this->l11n,
+        ];
     }
 
     /**
diff --git a/Models/ContractTypeL11n.php b/Models/ContractTypeL11n.php
index 7da01e5..e9994ca 100755
--- a/Models/ContractTypeL11n.php
+++ b/Models/ContractTypeL11n.php
@@ -41,7 +41,7 @@ class ContractTypeL11n implements \JsonSerializable, ArrayableInterface
      * @var int|ContractType
      * @since 1.0.0
      */
-    protected int | ContractType $type = 0;
+    public int | ContractType $type = 0;
 
     /**
      * Language.
@@ -88,29 +88,15 @@ class ContractTypeL11n implements \JsonSerializable, ArrayableInterface
     }
 
     /**
-     * Get attribute type
+     * Get language
      *
-     * @return int|ContractType
+     * @return string
      *
      * @since 1.0.0
      */
-    public function getType() : int | ContractType
+    public function getLanguage() : string
     {
-        return $this->type;
-    }
-
-    /**
-     * Set type.
-     *
-     * @param int $type Type id
-     *
-     * @return void
-     *
-     * @since 1.0.0
-     */
-    public function setType(int $type) : void
-    {
-        $this->type = $type;
+        return $this->language;
     }
 
     /**
@@ -132,7 +118,12 @@ class ContractTypeL11n implements \JsonSerializable, ArrayableInterface
      */
     public function toArray() : array
     {
-        return [];
+        return [
+            'id' => $this->id,
+            'title' => $this->title,
+            'type' => $this->type,
+            'language' => $this->language,
+        ];
     }
 
     /**
diff --git a/tests/Controller/ApiControllerTest.php b/tests/Controller/ApiControllerTest.php
new file mode 100644
index 0000000..7320305
--- /dev/null
+++ b/tests/Controller/ApiControllerTest.php
@@ -0,0 +1,247 @@
+<?php
+/**
+ * Orange Management
+ *
+ * PHP Version 8.0
+ *
+ * @package   tests
+ * @copyright Dennis Eichhorn
+ * @license   OMS License 1.0
+ * @version   1.0.0
+ * @link      https://orange-management.org
+ */
+declare(strict_types=1);
+
+namespace Modules\ContractManagement\tests\Controller;
+
+use Model\CoreSettings;
+use Modules\Admin\Models\AccountPermission;
+use phpOMS\DataStorage\Session\HttpSession;
+use phpOMS\Account\Account;
+use phpOMS\Account\AccountManager;
+use phpOMS\Account\PermissionType;
+use phpOMS\Application\ApplicationAbstract;
+use phpOMS\Dispatcher\Dispatcher;
+use phpOMS\Event\EventManager;
+use phpOMS\Module\ModuleAbstract;
+use phpOMS\Module\ModuleManager;
+use phpOMS\Router\WebRouter;
+use phpOMS\Utils\TestUtils;
+use phpOMS\Localization\ISO639x1Enum;
+use Modules\Media\Models\MediaMapper;
+use Modules\Media\Models\PathSettings;
+use Modules\Media\Models\UploadStatus;
+use phpOMS\Message\Http\HttpRequest;
+use phpOMS\Message\Http\HttpResponse;
+use phpOMS\Message\Http\RequestStatusCode;
+use phpOMS\System\File\Local\Directory;
+use phpOMS\Uri\HttpUri;
+
+/**
+ * @testdox Modules\ContractManagement\tests\Controller\ApiControllerTest: ContractManagement api controller
+ *
+ * @internal
+ */
+final class ApiControllerTest extends \PHPUnit\Framework\TestCase
+{
+    protected ApplicationAbstract $app;
+
+    /**
+     * @var \Modules\ContractManagement\Controller\ApiController
+     */
+    protected ModuleAbstract $module;
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function setUp() : void
+    {
+        $this->app = new class() extends ApplicationAbstract
+        {
+            protected string $appName = 'Api';
+        };
+
+        $this->app->dbPool         = $GLOBALS['dbpool'];
+        $this->app->orgId          = 1;
+        $this->app->accountManager = new AccountManager($GLOBALS['session']);
+        $this->app->appSettings    = new CoreSettings();
+        $this->app->moduleManager  = new ModuleManager($this->app, __DIR__ . '/../../../../Modules/');
+        $this->app->dispatcher     = new Dispatcher($this->app);
+        $this->app->eventManager   = new EventManager($this->app->dispatcher);
+        $this->app->eventManager->importFromFile(__DIR__ . '/../../../../Web/Api/Hooks.php');
+        $this->app->sessionManager = new HttpSession(36000);
+
+        $account = new Account();
+        TestUtils::setMember($account, 'id', 1);
+
+        $permission = new AccountPermission();
+        $permission->setUnit(1);
+        $permission->setApp('backend');
+        $permission->setPermission(
+            PermissionType::READ
+            | PermissionType::CREATE
+            | PermissionType::MODIFY
+            | PermissionType::DELETE
+            | PermissionType::PERMISSION
+        );
+
+        $account->addPermission($permission);
+
+        $this->app->accountManager->add($account);
+        $this->app->router = new WebRouter();
+
+        $this->module = $this->app->moduleManager->get('ContractManagement');
+
+        TestUtils::setMember($this->module, 'app', $this->app);
+    }
+
+    /**
+     * @covers Modules\ContractManagement\Controller\ApiController
+     * @group module
+     */
+    public function testApiContractTypeCreate() : void
+    {
+        $response = new HttpResponse();
+        $request  = new HttpRequest(new HttpUri(''));
+
+        $request->header->account = 1;
+        $request->setData('title', 'Test');
+        $request->setData('language', ISO639x1Enum::_EN);
+
+        $this->module->apiContractTypeCreate($request, $response);
+        self::assertGreaterThan(0, $response->get('')['response']->getId());
+    }
+
+    /**
+     * @covers Modules\ContractManagement\Controller\ApiController
+     * @group module
+     */
+    public function testApiContractTypeCreateInvalidData() : void
+    {
+        $response = new HttpResponse();
+        $request  = new HttpRequest(new HttpUri(''));
+
+        $request->header->account = 1;
+        $request->setData('invalid', '1');
+
+        $this->module->apiContractTypeCreate($request, $response);
+        self::assertEquals(RequestStatusCode::R_400, $response->header->status);
+    }
+
+    /**
+     * @covers Modules\ContractManagement\Controller\ApiController
+     * @group module
+     */
+    public function testApiContractTypeL11nCreate() : void
+    {
+        $response = new HttpResponse();
+        $request  = new HttpRequest(new HttpUri(''));
+
+        $request->header->account = 1;
+        $request->setData('title', 'Test');
+        $request->setData('type', '1');
+        $request->setData('language', ISO639x1Enum::_DE);
+
+        $this->module->apiContractTypeL11nCreate($request, $response);
+        self::assertGreaterThan(0, $response->get('')['response']->getId());
+    }
+
+    /**
+     * @covers Modules\ContractManagement\Controller\ApiController
+     * @group module
+     */
+    public function testApiContractTypeL11nCreateInvalidData() : void
+    {
+        $response = new HttpResponse();
+        $request  = new HttpRequest(new HttpUri(''));
+
+        $request->header->account = 1;
+        $request->setData('invalid', '1');
+
+        $this->module->apiContractTypeL11nCreate($request, $response);
+        self::assertEquals(RequestStatusCode::R_400, $response->header->status);
+    }
+
+    /**
+     * @covers Modules\ContractManagement\Controller\ApiController
+     * @group module
+     */
+    public function testApiContractCreate() : void
+    {
+        $response = new HttpResponse();
+        $request  = new HttpRequest(new HttpUri(''));
+
+        $request->header->account = 1;
+        $request->setData('title', 'Title');
+        $request->setData('start', '2010-10-09');
+        $request->setData('end', '2011-10-09');
+        $request->setData('duration', '2');
+        $request->setData('type', '1');
+
+        $this->module->apiContractCreate($request, $response);
+        self::assertGreaterThan(0, $response->get('')['response']->getId());
+    }
+
+    /**
+     * @covers Modules\ContractManagement\Controller\ApiController
+     * @group module
+     */
+    public function testApiContractCreateInvalidData() : void
+    {
+        $response = new HttpResponse();
+        $request  = new HttpRequest(new HttpUri(''));
+
+        $request->header->account = 1;
+        $request->setData('invalid', '1');
+
+        $this->module->apiContractCreate($request, $response);
+        self::assertEquals(RequestStatusCode::R_400, $response->header->status);
+    }
+
+    /**
+     * @covers Modules\ContractManagement\Controller\ApiController
+     * @group module
+     */
+    public function testApiContractDocCreate() : void
+    {
+        $response = new HttpResponse();
+        $request  = new HttpRequest(new HttpUri(''));
+
+        if (!\is_file(__DIR__ . '/test_tmp.pdf')) {
+            \copy(__DIR__ . '/test.pdf', __DIR__ . '/test_tmp.pdf');
+        }
+
+        $request->header->account = 1;
+        $request->setData('contract', 1);
+        $request->setData('contract_title', 'Test title');
+
+        TestUtils::setMember($request, 'files', [
+            'file1' => [
+                'name'     => 'test.pdf',
+                'type'     => 'pdf',
+                'tmp_name' => __DIR__ . '/test_tmp.pdf',
+                'error'    => \UPLOAD_ERR_OK,
+                'size'     => \filesize(__DIR__ . '/test_tmp.pdf'),
+            ],
+        ]);
+
+        $this->module->apiContractDocumentCreate($request, $response);
+        self::assertCount(1, $response->get('')['response']);
+    }
+
+    /**
+     * @covers Modules\ContractManagement\Controller\ApiController
+     * @group module
+     */
+    public function testApiContractDocCreateInvalidData() : void
+    {
+        $response = new HttpResponse();
+        $request  = new HttpRequest(new HttpUri(''));
+
+        $request->header->account = 1;
+        $request->setData('invalid', '1');
+
+        $this->module->apiContractCreate($request, $response);
+        self::assertEquals(RequestStatusCode::R_400, $response->header->status);
+    }
+}
diff --git a/tests/Controller/test.pdf b/tests/Controller/test.pdf
new file mode 100644
index 0000000..4a7256a
--- /dev/null
+++ b/tests/Controller/test.pdf
@@ -0,0 +1,76 @@
+%PDF-1.5
+%µí®û
+3 0 obj
+<< /Length 4 0 R
+   /Filter /FlateDecode
+>>
+stream
+xœmPËjÄ0¼û+æœX²å”
+½·`è9
+›…BC“ìÿSy“@‹i¥ÑØ‹yÇb\Ç‘S()ŽJTâ)Ő°^Ñ×ÍøˆìÂ6Å‚õ‚é>ýàâ³Yп
+·Ûe1nèÛ8Ÿb”u ˜¶…]͐ð̝hL°‘N5uFê¨Y”Â$II–œ9ü±øRMÈpz4‘úâ$÷I´«~›~²Î:êdžœs¤`…W…(âQKG-+Êsý2¯uÿª»ü¿•´×4IŒ]&F{ƒ•Ã±¦I|<åÍ/ΐUe
+endstream
+endobj
+4 0 obj
+   224
+endobj
+2 0 obj
+<<
+   /ExtGState <<
+      /a0 << /CA 1 /ca 1 >>
+   >>
+   /Pattern << /p5 5 0 R >>
+   /Font <<
+      /f-0-0 6 0 R
+   >>
+>>
+endobj
+7 0 obj
+<< /Type /Page
+   /Parent 1 0 R
+   /MediaBox [ 0 0 595 841 ]
+   /Contents 3 0 R
+   /Group <<
+      /Type /Group
+      /S /Transparency
+      /CS /DeviceRGB
+   >>
+   /Resources 2 0 R
+>>
+endobj
+9 0 obj
+<< /Length 10 0 R
+   /Filter /FlateDecode
+   /Type /XObject
+   /Subtype /Image
+   /Width 565
+   /Height 532
+   /ColorSpace /DeviceGray
+   /BitsPerComponent 8
+>>
+stream
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diff --git a/tests/Models/ContractTest.php b/tests/Models/ContractTest.php
new file mode 100644
index 0000000..45b6e47
--- /dev/null
+++ b/tests/Models/ContractTest.php
@@ -0,0 +1,86 @@
+<?php
+/**
+ * Orange Management
+ *
+ * PHP Version 8.0
+ *
+ * @package   tests
+ * @copyright Dennis Eichhorn
+ * @license   OMS License 1.0
+ * @version   1.0.0
+ * @link      https://orange-management.org
+ */
+declare(strict_types=1);
+
+namespace Modules\ContractManagement\tests\Models;
+
+use Modules\ContractManagement\Models\Contract;
+use Modules\ContractManagement\Models\ContractType;
+use Modules\Media\Models\Media;
+
+/**
+ * @internal
+ */
+final class ContractTest extends \PHPUnit\Framework\TestCase
+{
+    private Contract $contract;
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function setUp() : void
+    {
+        $this->contract = new Contract();
+    }
+
+    /**
+     * @covers Modules\ContractManagement\Models\Contract
+     * @group module
+     */
+    public function testDefault() : void
+    {
+        self::assertEquals(0, $this->contract->getId());
+        self::assertEquals([], $this->contract->getFiles());
+    }
+
+    /**
+     * @covers Modules\ContractManagement\Models\Contract
+     * @group module
+     */
+    public function testMediaInputOutput() : void
+    {
+        $this->contract->addFile(new Media());
+        self::assertCount(1, $this->contract->getFiles());
+    }
+
+    /**
+     * @covers Modules\ContractManagement\Models\Contract
+     * @group module
+     */
+    public function testSerialize() : void
+    {
+        $this->contract->title = 'Title';
+        $this->contract->description = 'Description';
+        $this->contract->duration   = 123;
+        $this->contract->warning   = 2;
+
+        $serialized = $this->contract->jsonSerialize();
+        unset($serialized['createdAt']);
+
+        self::assertEquals(
+            [
+                'id'       => 0,
+                'title'    => 'Title',
+                'description'    => 'Description',
+                'start'    => null,
+                'end'    => null,
+                'duration'    => 123,
+                'warning'    => 2,
+                'responsible'    => null,
+                'costs'    => null,
+                'type'    => new ContractType(),
+            ],
+            $serialized
+        );
+    }
+}
diff --git a/tests/Models/ContractTypeL11nTest.php b/tests/Models/ContractTypeL11nTest.php
new file mode 100644
index 0000000..efa9e53
--- /dev/null
+++ b/tests/Models/ContractTypeL11nTest.php
@@ -0,0 +1,87 @@
+<?php
+/**
+ * Orange Management
+ *
+ * PHP Version 8.0
+ *
+ * @package   tests
+ * @copyright Dennis Eichhorn
+ * @license   OMS License 1.0
+ * @version   1.0.0
+ * @link      https://orange-management.org
+ */
+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
new file mode 100644
index 0000000..19a6917
--- /dev/null
+++ b/tests/Models/ContractTypeTest.php
@@ -0,0 +1,75 @@
+<?php
+/**
+ * Orange Management
+ *
+ * PHP Version 8.0
+ *
+ * @package   tests
+ * @copyright Dennis Eichhorn
+ * @license   OMS License 1.0
+ * @version   1.0.0
+ * @link      https://orange-management.org
+ */
+declare(strict_types=1);
+
+namespace Modules\ContractManagement\tests\Models;
+
+use Modules\ContractManagement\Models\ContractType;
+use Modules\ContractManagement\Models\ContractTypeL11n;
+use phpOMS\Localization\ISO639x1Enum;
+
+/**
+ * @internal
+ */
+final class ContractTypeTest extends \PHPUnit\Framework\TestCase
+{
+    private ContractType $type;
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function setUp() : void
+    {
+        $this->type = new ContractType();
+    }
+
+    /**
+     * @covers Modules\ContractManagement\Models\ContractType
+     * @group module
+     */
+    public function testDefault() : void
+    {
+        self::assertEquals(0, $this->type->getId());
+        self::assertEquals('', $this->type->getL11n());
+    }
+
+    /**
+     * @covers Modules\ContractManagement\Models\ContractType
+     * @group module
+     */
+    public function testL11nInputOutput() : void
+    {
+        $this->type->setL11n('Test');
+        self::assertEquals('Test', $this->type->getL11n());
+
+        $this->type->setL11n(new ContractTypeL11n(0, 'NewTest'));
+        self::assertEquals('NewTest', $this->type->getL11n());
+    }
+
+    /**
+     * @covers Modules\ContractManagement\Models\ContractType
+     * @group module
+     */
+    public function testSerialize() : void
+    {
+        $this->type->type = 1;
+
+        self::assertEquals(
+            [
+                'id'       => 0,
+                'l11n'    => new ContractTypeL11n(),
+            ],
+            $this->type->jsonSerialize()
+        );
+    }
+}
diff --git a/tests/Models/NullContract.php b/tests/Models/NullContract.php
deleted file mode 100644
index 8ec6095..0000000
--- a/tests/Models/NullContract.php
+++ /dev/null
@@ -1,42 +0,0 @@
-<?php
-/**
- * Orange Management
- *
- * PHP Version 8.0
- *
- * @package   tests
- * @copyright Dennis Eichhorn
- * @license   OMS License 1.0
- * @version   1.0.0
- * @link      https://orange-management.org
- */
-declare(strict_types=1);
-
-namespace Modules\ContractManagement\tests\Models;
-
-use Modules\ContractManagement\Models\NullContract;
-
-/**
- * @internal
- */
-final class Null extends \PHPUnit\Framework\TestCase
-{
-    /**
-     * @covers Modules\ContractManagement\Models\NullContract
-     * @group framework
-     */
-    public function testNull() : void
-    {
-        self::assertInstanceOf('\Modules\ContractManagement\Models\Contract', new NullContract());
-    }
-
-    /**
-     * @covers Modules\ContractManagement\Models\NullContract
-     * @group framework
-     */
-    public function testId() : void
-    {
-        $null = new NullContract(2);
-        self::assertEquals(2, $null->getId());
-    }
-}
diff --git a/tests/Models/NullContractType.php b/tests/Models/NullContractType.php
deleted file mode 100644
index 1dee31e..0000000
--- a/tests/Models/NullContractType.php
+++ /dev/null
@@ -1,42 +0,0 @@
-<?php
-/**
- * Orange Management
- *
- * PHP Version 8.0
- *
- * @package   tests
- * @copyright Dennis Eichhorn
- * @license   OMS License 1.0
- * @version   1.0.0
- * @link      https://orange-management.org
- */
-declare(strict_types=1);
-
-namespace Modules\ContractManagement\tests\Models;
-
-use Modules\ContractManagement\Models\NullContractType;
-
-/**
- * @internal
- */
-final class Null extends \PHPUnit\Framework\TestCase
-{
-    /**
-     * @covers Modules\ContractManagement\Models\NullContractType
-     * @group framework
-     */
-    public function testNull() : void
-    {
-        self::assertInstanceOf('\Modules\ContractManagement\Models\ContractType', new NullContractType());
-    }
-
-    /**
-     * @covers Modules\ContractManagement\Models\NullContractType
-     * @group framework
-     */
-    public function testId() : void
-    {
-        $null = new NullContractType(2);
-        self::assertEquals(2, $null->getId());
-    }
-}
diff --git a/tests/Models/NullContractTypeL11n.php b/tests/Models/NullContractTypeL11nTest.php
similarity index 100%
rename from tests/Models/NullContractTypeL11n.php
rename to tests/Models/NullContractTypeL11nTest.php