diff --git a/tests/Models/Driver/NullDriverInspection.php b/tests/Models/Driver/NullDriverInspection.php
new file mode 100644
index 0000000..3c97d6c
--- /dev/null
+++ b/tests/Models/Driver/NullDriverInspection.php
@@ -0,0 +1,52 @@
+<?php
+/**
+ * Jingga
+ *
+ * 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\FleetManagement\tests\Models\Driver;
+
+use Modules\FleetManagement\Models\Driver\NullDriverInspection;
+
+/**
+ * @internal
+ */
+final class NullDriverInspectionTest extends \PHPUnit\Framework\TestCase
+{
+    /**
+     * @covers Modules\FleetManagement\Models\Driver\NullDriverInspection
+     * @group framework
+     */
+    public function testNull() : void
+    {
+        self::assertInstanceOf('\Modules\FleetManagement\Models\Driver\DriverInspection', new NullDriverInspection());
+    }
+
+    /**
+     * @covers Modules\FleetManagement\Models\Driver\NullDriverInspection
+     * @group framework
+     */
+    public function testId() : void
+    {
+        $null = new NullDriverInspection(2);
+        self::assertEquals(2, $null->id);
+    }
+
+    /**
+     * @covers Modules\FleetManagement\Models\Driver\NullDriverInspection
+     * @group module
+     */
+    public function testJsonSerialize() : void
+    {
+        $null = new NullDriverInspection(2);
+        self::assertEquals(['id' => 2], $null);
+    }
+}
\ No newline at end of file
diff --git a/tests/Models/Driver/NullDriverTest.php b/tests/Models/Driver/NullDriverTest.php
new file mode 100644
index 0000000..98cc0ec
--- /dev/null
+++ b/tests/Models/Driver/NullDriverTest.php
@@ -0,0 +1,52 @@
+<?php
+/**
+ * Jingga
+ *
+ * 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\FleetManagement\tests\Models\Driver;
+
+use Modules\FleetManagement\Models\Driver\NullDriver;
+
+/**
+ * @internal
+ */
+final class NullDriverTest extends \PHPUnit\Framework\TestCase
+{
+    /**
+     * @covers Modules\FleetManagement\Models\Driver\NullDriver
+     * @group framework
+     */
+    public function testNull() : void
+    {
+        self::assertInstanceOf('\Modules\FleetManagement\Models\Driver\Driver', new NullDriver());
+    }
+
+    /**
+     * @covers Modules\FleetManagement\Models\Driver\NullDriver
+     * @group framework
+     */
+    public function testId() : void
+    {
+        $null = new NullDriver(2);
+        self::assertEquals(2, $null->id);
+    }
+
+    /**
+     * @covers Modules\FleetManagement\Models\Driver\NullDriver
+     * @group module
+     */
+    public function testJsonSerialize() : void
+    {
+        $null = new NullDriver(2);
+        self::assertEquals(['id' => 2], $null);
+    }
+}
\ No newline at end of file
diff --git a/tests/Models/NullInspectionTest.php b/tests/Models/NullInspectionTest.php
new file mode 100644
index 0000000..45875a2
--- /dev/null
+++ b/tests/Models/NullInspectionTest.php
@@ -0,0 +1,52 @@
+<?php
+/**
+ * Jingga
+ *
+ * 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\FleetManagement\tests\Models;
+
+use Modules\FleetManagement\Models\NullInspection;
+
+/**
+ * @internal
+ */
+final class NullInspectionTest extends \PHPUnit\Framework\TestCase
+{
+    /**
+     * @covers Modules\FleetManagement\Models\NullInspection
+     * @group framework
+     */
+    public function testNull() : void
+    {
+        self::assertInstanceOf('\Modules\FleetManagement\Models\Inspection', new NullInspection());
+    }
+
+    /**
+     * @covers Modules\FleetManagement\Models\NullInspection
+     * @group framework
+     */
+    public function testId() : void
+    {
+        $null = new NullInspection(2);
+        self::assertEquals(2, $null->id);
+    }
+
+    /**
+     * @covers Modules\FleetManagement\Models\NullInspection
+     * @group module
+     */
+    public function testJsonSerialize() : void
+    {
+        $null = new NullInspection(2);
+        self::assertEquals(['id' => 2], $null);
+    }
+}
\ No newline at end of file
diff --git a/tests/Models/NullVehicleTest.php b/tests/Models/NullVehicleTest.php
new file mode 100644
index 0000000..517d79a
--- /dev/null
+++ b/tests/Models/NullVehicleTest.php
@@ -0,0 +1,52 @@
+<?php
+/**
+ * Jingga
+ *
+ * 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\FleetManagement\tests\Models;
+
+use Modules\FleetManagement\Models\NullVehicle;
+
+/**
+ * @internal
+ */
+final class NullVehicleTest extends \PHPUnit\Framework\TestCase
+{
+    /**
+     * @covers Modules\FleetManagement\Models\NullVehicle
+     * @group framework
+     */
+    public function testNull() : void
+    {
+        self::assertInstanceOf('\Modules\FleetManagement\Models\Vehicle', new NullVehicle());
+    }
+
+    /**
+     * @covers Modules\FleetManagement\Models\NullVehicle
+     * @group framework
+     */
+    public function testId() : void
+    {
+        $null = new NullVehicle(2);
+        self::assertEquals(2, $null->id);
+    }
+
+    /**
+     * @covers Modules\FleetManagement\Models\NullVehicle
+     * @group module
+     */
+    public function testJsonSerialize() : void
+    {
+        $null = new NullVehicle(2);
+        self::assertEquals(['id' => 2], $null);
+    }
+}
\ No newline at end of file