diff --git a/composer.json b/composer.json
index 026491b..3c7c8b1 100644
--- a/composer.json
+++ b/composer.json
@@ -65,7 +65,7 @@
     "scripts": {
         "cs-fix": "php-cs-fixer fix",
         "rector": "rector",
-        "test": "phpunit --testdox --no-interaction",
+        "test": "phpunit",
         "test-watch": "phpunit-watcher watch"
     }
 }
diff --git a/tests/ItemsStorage/CreateNestedDirectory/CreateNestedDirectoryTest.php b/tests/ItemsStorage/CreateNestedDirectory/CreateNestedDirectoryTest.php
index 474fc52..de14329 100644
--- a/tests/ItemsStorage/CreateNestedDirectory/CreateNestedDirectoryTest.php
+++ b/tests/ItemsStorage/CreateNestedDirectory/CreateNestedDirectoryTest.php
@@ -55,9 +55,6 @@ public function testRestoreErrorHandler(): void
         assertSame($errorHandler, $currentErrorHandler);
     }
 
-    /**
-     * @requires OS Linux
-     */
     public function testDirectoryPermission(): void
     {
         $directory = self::RUNTIME_DIRECTORY . '/test/create/nested/directory-permissions';
@@ -65,6 +62,7 @@ public function testDirectoryPermission(): void
         $storage = new ItemsStorage($directory . '/items.php');
         $storage->add(new Permission('createPost'));
 
-        $this->assertSame(0755, TestHelper::getDirectoryPermissions($directory));
+        $this->assertTrue(is_writable($directory));
+        $this->assertTrue(is_readable($directory));
     }
 }
diff --git a/tests/Support/TestHelper.php b/tests/Support/TestHelper.php
index 076c7e1..47566e6 100644
--- a/tests/Support/TestHelper.php
+++ b/tests/Support/TestHelper.php
@@ -4,8 +4,6 @@
 
 namespace Yiisoft\Rbac\Php\Tests\Support;
 
-use function sprintf;
-
 final class TestHelper
 {
     private function __construct() {}
@@ -16,9 +14,4 @@ public static function getCurrentErrorHandler(): ?callable
         restore_error_handler();
         return $currentHandler;
     }
-
-    public static function getDirectoryPermissions(string $path): int
-    {
-        return octdec(substr(sprintf('%o', fileperms($path)), -4));
-    }
 }