diff -u b/core/modules/field/src/Tests/String/UuidFormatterTest.php b/core/modules/field/src/Tests/String/UuidFormatterTest.php
--- b/core/modules/field/src/Tests/String/UuidFormatterTest.php
+++ b/core/modules/field/src/Tests/String/UuidFormatterTest.php
@@ -47,12 +47,14 @@
     $uuid_field = $entity->get('uuid');
 
     $render_array = $uuid_field->view([]);
-    $this->assertIdentical($render_array[0]['#context']['value'], $entity->uuid(), 'The rendered UUID matches the entity UUID.');
+    $value = $this->render($render_array);
+    $this->assertTrue(strpos($value, $entity->uuid()), 'The rendered UUID matches the entity UUID.');
 
     $render_array = $uuid_field->view(['settings' => ['link_to_entity' => TRUE]]);
     $this->assertIdentical($render_array[0]['#type'], 'link');
-    $this->assertIdentical($render_array[0]['#title']['#context']['value'], $entity->uuid());
     $this->assertIdentical($render_array[0]['#url']->toString(), $entity->url());
+    $value = $this->render($render_array);
+    $this->assertTrue(strpos($value, $entity->uuid()));
   }
 
 }