diff -u b/core/modules/system/tests/src/Kernel/Token/TokenReplaceKernelTest.php b/core/modules/system/tests/src/Kernel/Token/TokenReplaceKernelTest.php
--- b/core/modules/system/tests/src/Kernel/Token/TokenReplaceKernelTest.php
+++ b/core/modules/system/tests/src/Kernel/Token/TokenReplaceKernelTest.php
@@ -6,6 +6,7 @@
 use Drupal\Component\Render\FormattableMarkup;
 use Drupal\Component\Utility\Html;
 use Drupal\Component\Utility\Xss;
+use Drupal\Core\Datetime\Entity\DateFormat;
 use Drupal\Core\Render\BubbleableMetadata;
 
 /**
@@ -139,6 +140,7 @@
     $tests = [];
     /** @var \Drupal\Core\Datetime\DateFormatterInterface $date_formatter */
     $date_formatter = \Drupal::service('date.formatter');
+
     // Test standard date format tokens.
     $date_formats = array_keys(\Drupal::entityTypeManager()->getStorage('date_format')->loadMultiple());
     $this->assertCount(11, $date_formats);