From 06ef0932d23c29c4cbd627d61dbfcfabc66ae2a8 Mon Sep 17 00:00:00 2001
From: Joshua Ramon Enslin <joshua@museum-digital.de>
Date: Sat, 31 Jan 2026 14:30:25 +0100
Subject: [PATCH] Make link checker in MD_STD_RSS_TEST non-final

---
 src/testing/MD_STD_RSS_TEST.php | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/src/testing/MD_STD_RSS_TEST.php b/src/testing/MD_STD_RSS_TEST.php
index e40a7d7..29a8e3e 100644
--- a/src/testing/MD_STD_RSS_TEST.php
+++ b/src/testing/MD_STD_RSS_TEST.php
@@ -25,9 +25,22 @@ abstract class MD_STD_RSS_TEST extends TestCase {
 
         $domDoc = new DomDocument();
         self::assertTrue($domDoc->loadXML($this->feed));
-        self::assertTrue($domDoc->schemaValidate(__DIR__ . "/../../assets/xsd/Rss2.xsd"));
+
+        // Don't just validate, but validate after ignoring warning on
+        // the existence of a non-specified <updated/> element.
+        libxml_use_internal_errors(true);
+        $domDoc->schemaValidate(__DIR__ . "/../../assets/xsd/Rss2.xsd");
+        $errors = libxml_get_errors();
         unset($domDoc);
 
+        foreach ($errors as $e) {
+
+            if (str_contains((string)$e->message, '\'updated\': This element is not expected')) {
+                continue;
+            }
+            throw new Exception($e->message);
+        }
+
     }
 
     /**
@@ -35,7 +48,7 @@ abstract class MD_STD_RSS_TEST extends TestCase {
      *
      * @return void
      */
-    final public function testRssFeedLinksAndEnclosure() {
+    public function testRssFeedLinksAndEnclosure() {
 
         if (!($xmlData = simplexml_load_string($this->feed))) {
             throw new Exception("Failed to load RSS feed string to SimpleXML element");