From 006d1643e0540de7f455070dfa714142084f726f Mon Sep 17 00:00:00 2001
From: Daniel Seifert <ds@shopmodule.com>
Date: Thu, 14 Jul 2022 16:04:26 +0200
Subject: [PATCH] allow sender country is null

---
 src/Application/Model/Configuration.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Application/Model/Configuration.php b/src/Application/Model/Configuration.php
index 90f8777..9da0a7c 100644
--- a/src/Application/Model/Configuration.php
+++ b/src/Application/Model/Configuration.php
@@ -58,7 +58,7 @@ class Configuration
         $country = trim(Registry::getConfig()->getConfigParam('d3linkmobility_smsSenderCountry'));
         $country = strlen($country) ? strtoupper($country) : null;
 
-        Assert::that($country)->null() || Assert::that($country)->string()->length(2);
+        Assert::that($country)->nullOr()->string()->length(2);
 
         return $country;
     }