Kleine Korrekturen wegen PHP 8.1

api/tests/unit/Controller/WorkingHoursControllerTest.php

@@ -51,6 +51,7 @@ class WorkingHoursControllerTest extends Unit
                 'write' => function (mixed $data) {
                     $this->assertIsString($data);
                     $this->assertJson($data);
+                    return strlen($data);
                 },
             ]),
             'withHeader' => $this->makeEmpty(Response::class, [

api/tests/unit/Controller/WorkingHoursViewControllerTest.php

@@ -35,6 +35,7 @@ class WorkingHoursViewControllerTest extends Unit
                 'write' => function (mixed $data) {
                     $this->assertIsString($data);
                     $this->assertJson($data);
+                    return strlen($data);
                 },
             ]),
             'withHeader' => $this->makeEmpty(Response::class, [

api/tests/unit/Middleware/ErrorHandlerTest.php

@@ -38,6 +38,7 @@ class ErrorHandlerTest extends Unit
                         'write' => function (mixed $data) {
                             $this->assertIsString($data);
                             $this->assertJson($data);
+                            return strlen($data);
                         },
                     ]),
                 ]),