diff --git a/Tests/AbstractAsciiTestCase.php b/Tests/AbstractAsciiTestCase.php
index 8631378..3e3d970 100644
--- a/Tests/AbstractAsciiTestCase.php
+++ b/Tests/AbstractAsciiTestCase.php
@@ -1084,6 +1084,7 @@ public static function provideSnake()
             ['symfonyisgreat', 'SYMFONY    IS     GREAT'],
             ['symfonyisgreat', 'SYMFONY _ IS _ GREAT'],
             ['symfony_isgreat', 'Symfony IS GREAT!'],
+            ['123_customer_with_special_name', '123-customer,with/special#name'],
         ];
     }