diff --git a/core/modules/system/tests/modules/entity_test/entity_test.module b/core/modules/system/tests/modules/entity_test/entity_test.module
index 05498f7..d0bf3e2 100644
--- a/core/modules/system/tests/modules/entity_test/entity_test.module
+++ b/core/modules/system/tests/modules/entity_test/entity_test.module
@@ -213,18 +213,12 @@ function entity_test_menu() {
     $items[$entity_type . '/add'] = array(
       'title' => 'Add an @type',
       'title arguments' => array('@type' => $entity_type),
-      'page callback' => 'entity_test_add',
-      'page arguments' => array($entity_type),
-      'access arguments' => array('administer entity_test content'),
       'type' => MENU_NORMAL_ITEM,
     );
 
     $items[$entity_type . '/manage/%' . $entity_type] = array(
       'title' => 'Edit @type',
       'title arguments' => array('@type' => $entity_type),
-      'page callback' => 'entity_test_edit',
-      'page arguments' => array(2),
-      'access arguments' => array('administer entity_test content'),
       'type' => MENU_NORMAL_ITEM,
     );
 
@@ -246,39 +240,6 @@ function entity_test_form_node_form_alter(&$form, &$form_state, $form_id) {
 }
 
 /**
- * Menu callback: displays the 'Add new entity_test' form.
- *
- * @param string $entity_type
- *   Name of the entity type for which a create form should be displayed.
- *
- * @return array
- *   The processed form for a new entity_test.
- *
- * @see entity_test_menu()
- */
-function entity_test_add($entity_type) {
-  drupal_set_title(t('Create an @type', array('@type' => $entity_type)));
-  $entity = entity_create($entity_type, array());
-  return Drupal::entityManager()->getForm($entity);
-}
-
-/**
- * Menu callback: displays the 'Edit existing entity_test' form.
- *
- * @param \Drupal\Core\Entity\EntityInterface $entity
- *   The entity to be edited.
- *
- * @return array
- *   The processed form for the edited entity.
- *
- * @see entity_test_menu()
- */
-function entity_test_edit(EntityInterface $entity) {
-  drupal_set_title($entity->label(), PASS_THROUGH);
-  return Drupal::entityManager()->getForm($entity);
-}
-
-/**
  * Loads a test entity.
  *
  * @param int $id
diff --git a/core/modules/system/tests/modules/entity_test/entity_test.services.yml b/core/modules/system/tests/modules/entity_test/entity_test.services.yml
new file mode 100644
index 0000000..645504c
--- /dev/null
+++ b/core/modules/system/tests/modules/entity_test/entity_test.services.yml
@@ -0,0 +1,5 @@
+services:
+  entity_test.route_subscriber:
+    class: Drupal\entity_test\EntityTestSubscriber
+    tags:
+      - { name: event_subscriber }
diff --git a/core/modules/system/tests/modules/entity_test/lib/Drupal/entity_test/Controller/EntityTest.php b/core/modules/system/tests/modules/entity_test/lib/Drupal/entity_test/Controller/EntityTest.php
new file mode 100644
index 0000000..8615e9a
--- /dev/null
+++ b/core/modules/system/tests/modules/entity_test/lib/Drupal/entity_test/Controller/EntityTest.php
@@ -0,0 +1,73 @@
+<?php
+/**
+ * @file
+ * Contains \Drupal\entity_test\Controller\EntityTest.
+ */
+
+namespace Drupal\entity_test\Controller;
+
+use Symfony\Component\DependencyInjection\ContainerInterface;
+
+use Drupal\Core\Controller\ControllerInterface;
+use Drupal\Core\Entity\EntityManager;
+use Drupal\Core\Entity\EntityInterface;
+
+/**
+ * Controller routines for entity_test routes.
+ */
+class EntityTest implements ControllerInterface {
+
+  protected $entityManager;
+
+  /*
+   * {@inheritdoc}
+   */
+  public static function create(ContainerInterface $container) {
+    return new static($container->get('entity_manager'));
+  }
+
+  /**
+   * Constructs a UpdateTestController object.
+   *
+   * @param \Drupal\Core\Config\ConfigFactory $config_factory
+   *   The factory for configuration objects.
+   */
+  public function __construct(EntityManager $entityManager) {
+    $this->entityManager = $entityManager;
+  }
+
+  /**
+   * Menu callback: displays the 'Add new entity_test' form.
+   *
+   * @param string $entity_type
+   *   Name of the entity type for which a create form should be displayed.
+   *
+   * @return array
+   *   The processed form for a new entity_test.
+   *
+   * @see entity_test_menu()
+   */
+  function add($entity_type) {
+    drupal_set_title(t('Create an @type', array('@type' => $entity_type)));
+    $entity = entity_create($entity_type, array());
+    return $this->entityManager->getForm($entity);
+  }
+
+  /**
+   * Menu callback: displays the 'Edit existing entity_test' form.
+   *
+   * @param \Drupal\Core\Entity\EntityInterface $entity
+   *   The entity to be edited.
+   *
+   * @return array
+   *   The processed form for the edited entity.
+   *
+   * @see entity_test_menu()
+   */
+  function edit(EntityInterface $entity) {
+    drupal_set_title($entity->label(), PASS_THROUGH);
+    return $this->entityManager->getForm($entity);
+  }
+
+
+}
diff --git a/core/modules/system/tests/modules/entity_test/lib/Drupal/entity_test/EntityTestSubscriber.php b/core/modules/system/tests/modules/entity_test/lib/Drupal/entity_test/EntityTestSubscriber.php
new file mode 100644
index 0000000..d3e942d
--- /dev/null
+++ b/core/modules/system/tests/modules/entity_test/lib/Drupal/entity_test/EntityTestSubscriber.php
@@ -0,0 +1,52 @@
+<?php
+/**
+ * @file
+ * Definition of \Drupal\entity_test\EntityTestSubscriber.
+ */
+
+namespace Drupal\entity_test;
+
+use \Drupal\Core\Routing\RouteBuildEvent;
+use \Drupal\Core\Routing\RoutingEvents;
+use \Symfony\Component\EventDispatcher\EventSubscriberInterface;
+use \Symfony\Component\Routing\Route;
+
+/**
+ * Listens to the dynamic route event and add a test route.
+ */
+class EntityTestSubscriber implements EventSubscriberInterface {
+
+  /**
+   * Implements EventSubscriberInterface::getSubscribedEvents().
+   */
+  static public function getSubscribedEvents() {
+    $events[RoutingEvents::DYNAMIC] = 'createEntityTestRoutes';
+    return $events;
+  }
+
+  /**
+   * Adds dynamic entity_test routes.
+   *
+   * @param \Drupal\Core\Routing\RouteBuildEvent $event
+   *   The route building event.
+   *
+   * @return \Symfony\Component\Routing\RouteCollection
+   *   The route collection that contains the new dynamic route.
+   */
+  public function createEntityTestRoutes(RouteBuildEvent $event) {
+    $collection = $event->getRouteCollection();
+    foreach (entity_test_entity_types() as $entity_type) {
+      $route = new Route('/' . $entity_type . '/add', array(
+        '_content' => '\Drupal\entity_test\Controller\EntityTest::add',), array(
+          '_access' => 'administer entity_test content',
+        ));
+      $collection->add('entity_test_add_' . $entity_type, $route);
+      $route = new Route('/' . $entity_type . '/manage/{entity}', array(
+        '_content' => '\Drupal\entity_test\Controller\EntityTest::edit',), array(
+          '_access' => 'administer entity_test content',
+        ));
+      $collection->add('entity_test_edit_' . $entity_type, $route);
+    }
+  }
+
+}