diff --git a/core/modules/views/src/Tests/Handler/AreaTest.php b/core/modules/views/src/Tests/Handler/AreaTest.php
index 8bcb173..23463cf 100644
--- a/core/modules/views/src/Tests/Handler/AreaTest.php
+++ b/core/modules/views/src/Tests/Handler/AreaTest.php
@@ -7,7 +7,7 @@
 
 namespace Drupal\views\Tests\Handler;
 
-use Drupal\Component\Utility\SafeMarkup;
+use Drupal\Component\Utility\Xss;
 use Drupal\views\Views;
 
 /**
@@ -93,9 +93,9 @@ public function testRenderArea() {
 
     // Insert a random string to the test area plugin and see whether it is
     // rendered for both header, footer and empty text.
-    $header_string = $this->randomString();
-    $footer_string = $this->randomString();
-    $empty_string = $this->randomString();
+    $header_string = '<script type="text/javascript">alert("boo");</script><p>' . $this->randomMachineName() . '</p>';
+    $footer_string = '<script type="text/javascript">alert("boo");</script><p>' . $this->randomMachineName() . '</p>';
+    $empty_string = '<script type="text/javascript">alert("boo");</script><p>' . $this->randomMachineName() . '</p>';
 
     $view->header['test_example']->options['string'] = $header_string;
     $view->header['test_example']->options['empty'] = TRUE;