diff --git a/tests/ContextTest.php b/tests/ContextTest.php
index b2c8299..e5befab 100644
--- a/tests/ContextTest.php
+++ b/tests/ContextTest.php
@@ -47,7 +47,6 @@ public static function valuesProvider(): array
 
         $storage = new SplObjectStorage;
         $storage->attach($obj2);
-        $storage->foo = $obj2;
 
         return [
             [$obj, spl_object_hash($obj)],