From 2c1060f57aedd21a5114b4d151d0a445d9445dfd Mon Sep 17 00:00:00 2001
From: Chirag Aggarwal <chiragaggarwal5k@gmail.com>
Date: Wed, 1 Apr 2026 21:31:08 +0530
Subject: [PATCH] Fix null array key in HeadersTest

Cast null to string to avoid invalid array key type error
while preserving the test's intent of validating empty keys.
---
 tests/unit/Functions/Validator/HeadersTest.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/unit/Functions/Validator/HeadersTest.php b/tests/unit/Functions/Validator/HeadersTest.php
index 4a45f57427..b9cc7c6ea4 100644
--- a/tests/unit/Functions/Validator/HeadersTest.php
+++ b/tests/unit/Functions/Validator/HeadersTest.php
@@ -77,7 +77,7 @@ class HeadersTest extends TestCase
         $this->assertFalse($this->object->isValid($headers));
 
         $headers = [
-            null => 'value',
+            (string) null => 'value',
         ];
         $this->assertFalse($this->object->isValid($headers));