--- /dev/null
+<?php
+
+namespace Drupal\Tests\video_embed_field\Functional;
+
+use Drupal\simpletest\UserCreationTrait;
+
+/**
+ * Create admin users.
+ */
+trait AdminUserTrait {
+
+ use UserCreationTrait;
+
+ /**
+ * Create an admin user.
+ *
+ * @return \Drupal\user\UserInterface
+ * A user with all permissions.
+ */
+ protected function createAdminUser() {
+ return $this->drupalCreateUser(array_keys($this->container->get('user.permissions')->getPermissions()));
+ }
+
+}