Update to Drupal 8.0.0-rc3. For more information, see https://www.drupal.org/node/2608078

core/modules/system/src/Tests/Theme/TwigWhiteListTest.php

@@ -0,0 +1,130 @@
+<?php
+/**
+ * @file
+ * Contains \Drupal\system\Tests\Theme\TwigWhiteListTest.php.
+ */
+
+namespace Drupal\system\Tests\Theme;
+
+use Drupal\Core\Language\LanguageInterface;
+use Drupal\field\Entity\FieldConfig;
+use Drupal\field\Entity\FieldStorageConfig;
+use Drupal\node\Entity\Node;
+use Drupal\node\Entity\NodeType;
+use Drupal\simpletest\KernelTestBase;
+use Drupal\taxonomy\Entity\Term;
+use Drupal\taxonomy\Entity\Vocabulary;
+
+/**
+ * Tests white-listing of entity properties.
+ *
+ * @group Theme
+ */
+class TwigWhiteListTest extends KernelTestBase {
+
+  /**
+   * Term for referencing.
+   *
+   * @var \Drupal\taxonomy\TermInterface
+   */
+  protected $term;
+
+  /**
+   * Twig environment.
+   *
+   * @var \Drupal\Core\Template\TwigEnvironment
+   */
+  protected $twig;
+
+  /**
+   * {@inheritdoc}
+   */
+  public static $modules = ['node', 'taxonomy', 'user', 'system', 'text', 'field', 'entity_reference'];
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function setUp() {
+    parent::setUp();
+    $this->installSchema('system', array('router', 'sequences'));
+    $this->installEntitySchema('node');
+    $this->installEntitySchema('user');
+    $this->installEntitySchema('taxonomy_term');
+    NodeType::create([
+      'type' => 'page',
+      'name' => 'Basic page',
+      'display_submitted' => FALSE,
+    ])->save();
+    // Add a vocabulary so we can test different view modes.
+    $vocabulary = Vocabulary::create([
+      'name' => $this->randomMachineName(),
+      'description' => $this->randomMachineName(),
+      'vid' => $this->randomMachineName(),
+      'langcode' => LanguageInterface::LANGCODE_NOT_SPECIFIED,
+      'help' => '',
+    ]);
+    $vocabulary->save();
+
+    // Add a term to the vocabulary.
+    $this->term = Term::create([
+      'name' => 'Sometimes people are just jerks',
+      'description' => $this->randomMachineName(),
+      'vid' => $vocabulary->id(),
+      'langcode' => LanguageInterface::LANGCODE_NOT_SPECIFIED,
+    ]);
+    $this->term->save();
+
+    // Create a field.
+    $handler_settings = array(
+      'target_bundles' => array(
+        $vocabulary->id() => $vocabulary->id(),
+      ),
+      'auto_create' => TRUE,
+    );
+    // Add the term field.
+    FieldStorageConfig::create(array(
+      'field_name' => 'field_term',
+      'type' => 'entity_reference',
+      'entity_type' => 'node',
+      'cardinality' => 1,
+      'settings' => array(
+        'target_type' => 'taxonomy_term',
+      ),
+    ))->save();
+    FieldConfig::create(array(
+      'field_name' => 'field_term',
+      'entity_type' => 'node',
+      'bundle' => 'page',
+      'label' => 'Terms',
+      'settings' => array(
+        'handler' => 'default',
+        'handler_settings' => $handler_settings,
+      ),
+    ))->save();
+
+    // Show on default display and teaser.
+    entity_get_display('node', 'page', 'default')
+      ->setComponent('field_term', array(
+        'type' => 'entity_reference_label',
+      ))
+      ->save();
+    // Boot twig environment.
+    $this->twig = \Drupal::service('twig');
+  }
+
+  /**
+   * Tests white-listing of methods doesn't interfere with chaining.
+   */
+  public function testWhiteListChaining() {
+    $node = Node::create([
+      'type' => 'page',
+      'title' => 'Some node mmk',
+      'status' => 1,
+      'field_term' => $this->term->id(),
+    ]);
+    $node->save();
+    $this->setRawContent(twig_render_template(drupal_get_path('theme', 'test_theme') . '/templates/node.html.twig', ['node' => $node]));
+    $this->assertText('Sometimes people are just jerks');
+  }
+
+}