diff --git a/tests/DataStorage/Database/Connection/NullConnectionTest.php b/tests/DataStorage/Database/Connection/NullConnectionTest.php
index 5bbc5ab23..3f7c763c8 100644
--- a/tests/DataStorage/Database/Connection/NullConnectionTest.php
+++ b/tests/DataStorage/Database/Connection/NullConnectionTest.php
@@ -18,10 +18,17 @@ use phpOMS\DataStorage\Database\Connection\NullConnection;
 use phpOMS\DataStorage\Database\DatabaseType;
 
 /**
+ * @testdox phpOMS\tests\DataStorage\Database\Connection\NullConnectionTest: Null connection
+ *
  * @internal
  */
 class NullConnectionTest extends \PHPUnit\Framework\TestCase
 {
+    /**
+     * @testdox A null connection can be created as placeholder
+     * @covers phpOMS\DataStorage\Database\Connection\PostgresConnection
+     * @group framework
+     */
     public function testConnect() : void
     {
         $null = new NullConnection([]);
diff --git a/tests/DataStorage/Database/Connection/PostgresConnectionTest.php b/tests/DataStorage/Database/Connection/PostgresConnectionTest.php
index 8d2dd3dc8..10273bc4d 100644
--- a/tests/DataStorage/Database/Connection/PostgresConnectionTest.php
+++ b/tests/DataStorage/Database/Connection/PostgresConnectionTest.php
@@ -17,7 +17,7 @@ use phpOMS\DataStorage\Database\Connection\PostgresConnection;
 use phpOMS\DataStorage\Database\DatabaseStatus;
 
 /**
- * @testdox phpOMS\tests\DataStorage\Database\Connection\PostgresConnection: Postgresql connection
+ * @testdox phpOMS\tests\DataStorage\Database\Connection\PostgresConnectionTest: Postgresql connection
  *
  * @internal
  */
diff --git a/tests/DataStorage/Database/DataMapperAbstractTest.php b/tests/DataStorage/Database/DataMapperAbstractTest.php
index 498966ad8..d3bd1b68e 100644
--- a/tests/DataStorage/Database/DataMapperAbstractTest.php
+++ b/tests/DataStorage/Database/DataMapperAbstractTest.php
@@ -18,7 +18,7 @@ use phpOMS\tests\DataStorage\Database\TestModel\BaseModelMapper;
 use phpOMS\tests\DataStorage\Database\TestModel\ManyToManyDirectModelMapper;
 
 /**
- * @testdox phpOMS\tests\DataStorage\Database\DataMapperAbstract: Datamapper for database models
+ * @testdox phpOMS\tests\DataStorage\Database\DataMapperAbstractTest: Datamapper for database models
  *
  * @internal
  */
@@ -29,6 +29,7 @@ class DataMapperAbstractTest extends \PHPUnit\Framework\TestCase
 
     protected function setUp() : void
     {
+        var_dump(1);
         $this->model      = new BaseModel();
         $this->modelArray = [
             'id' => 0,