diff -u b/core/tests/Drupal/FunctionalJavascriptTests/Core/Form/JavascriptStatesTest.php b/core/tests/Drupal/FunctionalJavascriptTests/Core/Form/JavascriptStatesTest.php
--- b/core/tests/Drupal/FunctionalJavascriptTests/Core/Form/JavascriptStatesTest.php
+++ b/core/tests/Drupal/FunctionalJavascriptTests/Core/Form/JavascriptStatesTest.php
@@ -28,20 +28,18 @@
   protected function setUp():void {
     parent::setUp();
     // Add text formats.
-    $filtered_html_format = FilterFormat::create([
+    FilterFormat::create([
       'format' => 'filtered_html',
       'name' => 'Filtered HTML',
       'weight' => 0,
       'filters' => [],
-    ]);
-    $filtered_html_format->save();
-    $full_html_format = FilterFormat::create([
+    ])->save();
+    FilterFormat::create([
       'format' => 'full_html',
       'name' => 'Full HTML',
       'weight' => 1,
       'filters' => [],
-    ]);
-    $full_html_format->save();
+    ])->save();
     $normal_user = $this->drupalCreateUser([
       'use text format filtered_html',
       'use text format full_html',