reverted:
--- b/core/modules/content_moderation/src/Tests/ModerationStateDuplicateLabelTest.php
+++ /dev/null
@@ -1,66 +0,0 @@
-<?php
-
-namespace Drupal\content_moderation\Tests;
-
-use Drupal\content_moderation\Entity\ModerationState;
-
-/**
- * Tests the Unique/Duplicate labels form "Moderation states" screen and "Add Moderation state transition".
- *
- * @group workbench_moderation
- */
-class ModerationStateDuplicateLabelTest extends ModerationStateTestBase {
-
-  /**
-   * Tests route access/permissions.
-   */
-  public function testAccess() {
-    $paths = [
-      'admin/config/workflow/moderation',
-      'admin/config/workflow/moderation/states',
-      'admin/config/workflow/moderation/states/add',
-      'admin/config/workflow/moderation/states/draft',
-    ];
-
-    foreach ($paths as $path) {
-      $this->drupalGet($path);
-      // No access.
-      $this->assertResponse(403);
-    }
-    $this->drupalLogin($this->adminUser);
-    foreach ($paths as $path) {
-      $this->drupalGet($path);
-      // User has access.
-      $this->assertResponse(200);
-    }
-  }
-
-  /**
-   * Tests administration of moderation state transition entity.
-   */
-  public function testDuplicateLabel() {
-    $duplicate_label = 'Draft';
-
-    $this->drupalLogin($this->adminUser);
-    $this->drupalGet('admin/config/workflow/moderation');
-    $this->assertLink('Moderation states');
-    $this->clickLink('Moderation states');
-    $this->clickLink('Add Moderation state');
-    // Add two states with the same label and one unique.
-    $this->drupalPostForm(NULL, [
-      'label' => $duplicate_label,
-      'id' => 'duplicate',
-    ], t('Save'));
-
-    /** @var ModerationState $state */
-    foreach (ModerationState::loadMultiple() as $state) {
-      if ($state->id() === 'duplicate' || $state->id() === 'draft') {
-        $this->assertNotIdentical($state->label(FALSE), $state->label(), 'The labels are different.');
-      }
-      else {
-        $this->assertIdentical($state->label(FALSE), $state->label(), 'The labels are identical.');
-      }
-    }
-  }
-
-}
diff -u b/core/modules/content_moderation/src/Tests/ModerationStateTransitionsTest.php b/core/modules/content_moderation/src/Tests/ModerationStateTransitionsTest.php
--- b/core/modules/content_moderation/src/Tests/ModerationStateTransitionsTest.php
+++ b/core/modules/content_moderation/src/Tests/ModerationStateTransitionsTest.php
@@ -2,6 +2,8 @@
 
 namespace Drupal\content_moderation\Tests;
 
+use Drupal\content_moderation\Entity\ModerationState;
+
 /**
  * Tests moderation state transition config entity.
  *
@@ -86,6 +88,11 @@
     $this->assertText('Are you sure you want to delete Published » Expired?');
     $this->drupalPostForm(NULL, [], t('Delete'));
     $this->assertText('Moderation transition Published » Expired deleted');
+
+    /** @var ModerationState $state */
+    foreach (ModerationState::loadMultiple() as $state) {
+      $this->assertIdentical($state->label(FALSE), $state->label(), 'The labels are identical.');
+    }
   }
 
 }