diff --git a/core/modules/node/tests/src/Functional/NodeRSSContentTest.php b/core/modules/node/tests/src/Functional/NodeRSSContentTest.php
index 861c8c555776cbc59b41465a2e71f4d363d3c4f7..4bc8a2c44295e17e1778970c2f7d2064f093cc78 100644
--- a/core/modules/node/tests/src/Functional/NodeRSSContentTest.php
+++ b/core/modules/node/tests/src/Functional/NodeRSSContentTest.php
@@ -96,18 +96,18 @@ public function testUrlHandling(): void {
     $file_url_generator = \Drupal::service('file_url_generator');
     $this->drupalCreateNode($defaults + [
       'body' => [
-        'value' => '<p><a href="' . $file_url_generator->generateString('public://root-relative') . '">Root-relative URL</a></p>',
+        'value' => '<p><a href="' . $file_url_generator->generate('public://root-relative')->toString() . '">Root-relative URL</a></p>',
         'format' => 'full_html',
       ],
     ]);
-    $protocol_relative_url = substr($file_url_generator->generateAbsoluteString('public://protocol-relative'), strlen(\Drupal::request()->getScheme() . ':'));
+    $protocol_relative_url = substr($file_url_generator->generate('public://protocol-relative')->setAbsolute()->toString(), strlen(\Drupal::request()->getScheme() . ':'));
     $this->drupalCreateNode($defaults + [
       'body' => [
         'value' => '<p><a href="' . $protocol_relative_url . '">Protocol-relative URL</a></p>',
         'format' => 'full_html',
       ],
     ]);
-    $absolute_url = $file_url_generator->generateAbsoluteString('public://absolute');
+    $absolute_url = $file_url_generator->generate('public://absolute')->setAbsolute()->toString();
     $this->drupalCreateNode($defaults + [
       'body' => [
         'value' => '<p><a href="' . $absolute_url . '">Absolute URL</a></p>',
@@ -117,7 +117,7 @@ public function testUrlHandling(): void {
 
     $this->drupalGet('rss.xml');
     // Verify that root-relative URL is transformed to absolute.
-    $this->assertSession()->responseContains($file_url_generator->generateAbsoluteString('public://root-relative'));
+    $this->assertSession()->responseContains($file_url_generator->generate('public://root-relative')->setAbsolute()->toString());
     // Verify that protocol-relative URL is left untouched.
     $this->assertSession()->responseContains($protocol_relative_url);
     // Verify that absolute URL is left untouched.