diff --git a/core/modules/config/tests/config_test/config_test.info b/core/modules/config/tests/config_test/config_test.info
index 3c0ca6b..aceba11 100644
--- a/core/modules/config/tests/config_test/config_test.info
+++ b/core/modules/config/tests/config_test/config_test.info
@@ -2,4 +2,4 @@ name = Configuration test module
 package = Core
 version = VERSION
 core = 8.x
-hidden = TRUE
+hidden = FALSE
diff --git a/core/modules/config/tests/config_test/config_test.module b/core/modules/config/tests/config_test/config_test.module
index 44df4da..4a06695 100644
--- a/core/modules/config/tests/config_test/config_test.module
+++ b/core/modules/config/tests/config_test/config_test.module
@@ -83,6 +83,9 @@ function config_test_entity_info() {
     'controller class' => 'Drupal\Core\Config\Entity\ConfigStorageController',
     'entity class' => 'Drupal\config_test\ConfigTest',
     'list controller class' => 'Drupal\Core\Config\Entity\ConfigEntityListController',
+    'form controller class' => array(
+      'default' => 'Drupal\config_test\ConfigTestFormController',
+    ),
     'uri callback' => 'config_test_uri',
     'config prefix' => 'config_test.dynamic',
     'entity keys' => array(
@@ -95,6 +98,19 @@ function config_test_entity_info() {
 }
 
 /**
+ * Implements hook_permission().
+ */
+function config_test_permission() {
+  $permissions = array(
+    'administer config_test content' => array(
+      'title' => t('Administer entity_test content'),
+      'description' => t('Manage config_test contnet'),
+    )
+  );
+  return $permissions;
+}
+
+/**
  * Entity URI callback.
  *
  * @param Drupal\config_test\ConfigTest $config_test
@@ -117,15 +133,14 @@ function config_test_menu() {
   );
   $items['admin/structure/config_test/add'] = array(
     'title' => 'Add test configuration',
-    'page callback' => 'drupal_get_form',
-    'page arguments' => array('config_test_form'),
+    'page callback' => 'config_test_add',
     'access callback' => TRUE,
     'type' => MENU_LOCAL_ACTION,
   );
   $items['admin/structure/config_test/manage/%config_test'] = array(
     'title' => 'Edit test configuration',
-    'page callback' => 'drupal_get_form',
-    'page arguments' => array('config_test_form', 4),
+    'page callback' => 'config_test_edit',
+    'page arguments' => array(4),
     'access callback' => TRUE,
   );
   $items['admin/structure/config_test/manage/%config_test/edit'] = array(
@@ -154,26 +169,6 @@ function config_test_load($id) {
 }
 
 /**
- * Saves a ConfigTest object.
- *
- * @param Drupal\config_test\ConfigTest $config_test
- *   The ConfigTest object to save.
- */
-function config_test_save(ConfigTest $config_test) {
-  return $config_test->save();
-}
-
-/**
- * Deletes a ConfigTest object.
- *
- * @param string $id
- *   The ID of the ConfigTest object to delete.
- */
-function config_test_delete($id) {
-  entity_delete_multiple('config_test', array($id));
-}
-
-/**
  * Page callback; Lists available ConfigTest objects.
  */
 function config_test_list_page() {
@@ -182,79 +177,20 @@ function config_test_list_page() {
 }
 
 /**
- * Form constructor to add or edit a ConfigTest object.
- *
- * @param Drupal\config_test\ConfigTest $config_test
- *   (optional) An existing ConfigTest object to edit. If omitted, the form
- *   creates a new ConfigTest.
+ * Menu callback: displays the 'Add new config_test' form.
  */
-function config_test_form($form, &$form_state, ConfigTest $config_test = NULL) {
-  // Standard procedure for handling the entity argument in entity forms, taking
-  // potential form caching and rebuilds properly into account.
-  // @see http://drupal.org/node/1499596
-  if (!isset($form_state['config_test'])) {
-    if (!isset($config_test)) {
-      $config_test = entity_create('config_test', array());
-    }
-    $form_state['config_test'] = $config_test;
-  }
-  else {
-    $config_test = $form_state['config_test'];
-  }
-
-  $form['label'] = array(
-    '#type' => 'textfield',
-    '#title' => 'Label',
-    '#default_value' => $config_test->label(),
-    '#required' => TRUE,
-  );
-  $form['id'] = array(
-    '#type' => 'machine_name',
-    '#default_value' => $config_test->id(),
-    '#required' => TRUE,
-    '#machine_name' => array(
-      'exists' => 'config_test_load',
-      // @todo Update form_process_machine_name() to use 'label' by default.
-      'source' => array('label'),
-    ),
-  );
-  $form['style'] = array(
-    '#type' => 'select',
-    '#title' => 'Image style',
-    '#options' => array(),
-    '#default_value' => $config_test->get('style'),
-    '#access' => FALSE,
-  );
-  if (module_exists('image')) {
-    $form['style']['#access'] = TRUE;
-    $form['style']['#options'] = image_style_options();
-  }
-
-  $form['actions'] = array('#type' => 'actions');
-  $form['actions']['submit'] = array('#type' => 'submit', '#value' => 'Save');
-
-  return $form;
+function config_test_add() {
+  drupal_set_title(t('Create a config_test'));
+  $entity = entity_create('config_test', array());
+  return entity_get_form($entity);
 }
 
 /**
- * Form submission handler for config_test_form().
+ * Menu callback: displays the 'Edit existing config_test form.
  */
-function config_test_form_submit($form, &$form_state) {
-  form_state_values_clean($form_state);
-
-  $config_test = $form_state['config_test'];
-  entity_form_submit_build_entity('config_test', $config_test, $form, $form_state);
-
-  $status = $config_test->save();
-
-  if ($status == SAVED_UPDATED) {
-    drupal_set_message(format_string('%label configuration has been updated.', array('%label' => $config_test->label())));
-  }
-  else {
-    drupal_set_message(format_string('%label configuration has been created.', array('%label' => $config_test->label())));
-  }
-
-  $form_state['redirect'] = 'admin/structure/config_test';
+function config_test_edit($entity) {
+  drupal_set_title(t('config_test @id', array('@id' => $entity->id)), PASS_THROUGH);
+  return entity_get_form($entity);
 }
 
 /**
diff --git a/core/modules/config/tests/config_test/lib/Drupal/config_test/ConfigTestFormController.php b/core/modules/config/tests/config_test/lib/Drupal/config_test/ConfigTestFormController.php
new file mode 100644
index 0000000..ed8a2e4
--- /dev/null
+++ b/core/modules/config/tests/config_test/lib/Drupal/config_test/ConfigTestFormController.php
@@ -0,0 +1,104 @@
+<?php
+/**
+ * @file
+ * Definition of Drupal\config_test\ConfigTestFormController.
+ */
+
+namespace Drupal\config_test;
+
+use Drupal\Core\Entity\EntityInterace;
+use Drupal\Core\Entity\EntityFormControllerNG;
+
+/**
+ * Form controller for the test config edit forms.
+ */
+class ConfigTestFormController extends EntityFormControllerNG {
+
+  /**
+   * Overrides Drupal\Core\Entity\EntityFormController::form().
+   */
+  public function form(array $form, array &$form_state, EntityInterface $entity) {
+    $form = parent::form($form, $form_state, $entity);
+
+    $langcode = $this->getFormLangcode($form_state);
+    $name = $entity->get('name', $langcode);
+    $uid = $entity->get('uid', $langcode);
+
+    $form['label'] = array(
+      '#type' => 'textfield',
+      '#title' => 'Label',
+      '#default_value' => $entity->label(),
+      '#required' => TRUE,
+    );
+    $form['id'] = array(
+      '#type' => 'machine_name',
+      '#default_value' => $entity->id(),
+      '#required' => TRUE,
+      '#machine_name' => array(
+        'exists' => 'config_test_load',
+        // @todo Update form_process_machine_name() to use 'label' by default.
+        'source' => array('label'),
+      ),
+    );
+    $form['style'] = array(
+      '#type' => 'select',
+      '#title' => 'Image style',
+      '#options' => array(),
+      '#default_value' => $entity->get('style'),
+      '#access' => FALSE,
+    );
+    if (module_exists('image')) {
+      $form['style']['#access'] = TRUE;
+      $form['style']['#options'] = image_style_options();
+    }
+
+    $form['actions'] = array('#type' => 'actions');
+    $form['actions']['submit'] = array('#type' => 'submit', '#value' => 'Save');
+
+    return $form;
+  }
+
+  /**
+   * Overrides Drupal\Core\Entity\EntityFormController::submit().
+   */
+  public function submit(array $form, array &$form_state) {
+    form_state_values_clean($form_state);
+    $entity = parent::submit($form, $form_state);
+
+    return $entity;
+  }
+
+  /**
+   * Overrides Drupal\Core\Entity\EntityFormController::save().
+   */
+  public function save(array $form, array &$form_state) {
+    $entity = $this->getEntity($form_state);
+    $is_new = $entity->isNew();
+    $entity->save();
+
+    $message = $is_new ? t('config_test @id has been created.', array('@id' => $entity->id())) : t('config_test @id has been updated.', array('@id' => $entity->id()));
+    drupal_set_message($message);
+
+    if ($entity->id()) {
+      $form_state['redirect'] = 'admin/structure/config_test/manage';
+    }
+    else {
+      // Error on save.
+      drupal_set_message(t('The entity could not be saved.'), 'error');
+      $form_state['rebuild'] = TRUE;
+    }
+  }
+
+  /**
+   * Overrides Drupal\Core\Entity\EntityFormController::delete().
+   */
+  public function delete(array $form, array &$form_state) {
+    $entity = $this->getEntity($form_state);
+    $entity->delete();
+    drupal_set_message(t('config_test @id has been deleted.', array('@id' => $entity->id())));
+    $form_state['redirect'] = 'admin/structure/config_test/manage';
+  }
+};
+
+?>
+