core/modules/ckeditor5/tests/src/Unit/HTMLRestrictionsTest.php | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/core/modules/ckeditor5/tests/src/Unit/HTMLRestrictionsTest.php b/core/modules/ckeditor5/tests/src/Unit/HTMLRestrictionsTest.php
index c049ecf03b..840cf083ad 100644
--- a/core/modules/ckeditor5/tests/src/Unit/HTMLRestrictionsTest.php
+++ b/core/modules/ckeditor5/tests/src/Unit/HTMLRestrictionsTest.php
@@ -442,9 +442,9 @@ public function providerRepresentations(): \Generator {
     ];
 
     yield 'realistic' => [
-      new HTMLRestrictions(['a' => ['href' => TRUE, 'hreflang' => ['en' => TRUE, 'fr' => TRUE]], 'p' => ['data-*' => TRUE], 'br' => FALSE]),
-      ['<a href hreflang="en fr">', '<p data-*>', '<br>'],
-      '<a href hreflang="en fr"> <p data-*> <br>',
+      new HTMLRestrictions(['a' => ['href' => TRUE, 'hreflang' => ['en' => TRUE, 'fr' => TRUE]], 'p' => ['data-*' => TRUE, 'class' => ['block' => TRUE]], 'br' => FALSE]),
+      ['<a href hreflang="en fr">', '<p data-* class="block">', '<br>'],
+      '<a href hreflang="en fr"> <p data-* class="block"> <br>',
       [
         [
           'name' => 'a',
@@ -462,6 +462,9 @@ public function providerRepresentations(): \Generator {
           'attributes' => [
             'data-*' => TRUE,
           ],
+          'classes' => [
+            'block',
+          ],
         ],
         ['name' => 'br'],
       ],