From 34de0591973c2603bae61514070e7861a1966776 Mon Sep 17 00:00:00 2001
From: Viacheslav Poturaev <vearutop@gmail.com>
Date: Thu, 28 Apr 2022 21:15:24 +0200
Subject: [PATCH] Add null check

---
 src/TextUI/Command.php | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/TextUI/Command.php b/src/TextUI/Command.php
index d67d261fbe..6103d099e3 100644
--- a/src/TextUI/Command.php
+++ b/src/TextUI/Command.php
@@ -338,9 +338,10 @@ protected function handleArguments(array $argv)
                     break;
 
                 case '--test-suffix':
+                    $o1 = isset($option[1]) ? $option[1] : '';
                     $this->arguments['testSuffixes'] = explode(
                         ',',
-                        $option[1]
+                        $o1
                     );
                     break;