From ce6658d2c871cf792f2fe5e7808ea4409591256b Mon Sep 17 00:00:00 2001
From: Andrew Nicols <andrew@nicols.co.uk>
Date: Thu, 8 Jun 2023 11:59:04 +0800
Subject: [PATCH] MDL-76838 core: Add unit test for invalid unicode sequences

---
 lib/tests/moodlelib_test.php | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/tests/moodlelib_test.php b/lib/tests/moodlelib_test.php
index 0abcc021c3e..3124b326987 100644
--- a/lib/tests/moodlelib_test.php
+++ b/lib/tests/moodlelib_test.php
@@ -179,6 +179,7 @@ class moodlelib_test extends \advanced_testcase {
 
         // Invalid utf8 string.
         $this->assertSame('aš', fix_utf8('a'.chr(130).'š'), 'This fails with buggy iconv() when mbstring extenstion is not available as fallback.');
+        $this->assertSame('Hello ', fix_utf8('Hello ￿'));
     }
 
     public function test_optional_param() {