/**
  * {@inheritdoc}
  */
 public function getCacheContexts()
 {
     // The block by itself doesn't really vary by user, but some of its
     // implementations are (collection module, I'm looking at you). For the sake
     // of semplicity, we add the user context here already.
     $contexts = parent::getCacheContexts();
     return Cache::mergeContexts($contexts, ['user']);
 }

 /**
  * Tests private profile field access.
  */
 public function testPrivateField()
 {
     $this->drupalLogin($this->adminUser);
     // Create a private profile field.
     $edit = ['new_storage_type' => 'string', 'label' => 'Secret', 'field_name' => 'secret'];
     $this->drupalPostForm("admin/config/people/profiles/types/manage/{$this->type->id()}/fields/add-field", $edit, t('Save and continue'));
     $this->drupalPostForm(NULL, [], t('Save field settings'));
     $edit = ['profile_private' => 1];
     $this->drupalPostForm(NULL, $edit, t('Save settings'));
     // Fill in a field value.
     $this->drupalLogin($this->webUser);
     $uid = $this->webUser->id();
     $secret = $this->randomMachineName();
     $edit = ['field_secret[0][value]' => $secret];
     $this->drupalPostForm("user/{$uid}/{$this->type->id()}", $edit, t('Save'));
     // User cache page need to be cleared to see new profile.
     Cache::invalidateTags(['user:' . $uid, 'user_view']);
     // Verify that the private field value appears for the profile owner.
     $this->drupalGet("user/{$uid}");
     $this->assertText($secret);
     // Verify that the private field value appears for the administrator.
     $this->drupalLogin($this->adminUser);
     $this->drupalGet("user/{$uid}");
     $this->assertText($secret);
     // Verify that the private field value does not appear for other users.
     $this->drupalLogin($this->otherUser);
     $this->drupalGet("user/{$uid}");
     $this->assertNoText($secret);
 }

 /**
  * {@inheritdoc}
  */
 public function submitForm(array &$form, FormStateInterface $form_state)
 {
     module_load_include('inc', 'sociallogin');
     $data = get_authentication($form_state->getValue('api_key'), $form_state->getValue('api_secret'));
     if (isset($data['status']) && $data['status'] != 'status') {
         drupal_set_message($data['message'], $data['status']);
         return FALSE;
     }
     parent::SubmitForm($form, $form_state);
     $this->config('sociallogin.settings')->set('sso_site_name', $form_state->getValue('sso_site_name'))->set('api_key', $form_state->getValue('api_key'))->set('api_secret', $form_state->getValue('api_secret'))->set('username_option', $form_state->getValue('username_option'))->set('login_redirection', $form_state->getValue('login_redirection'))->set('register_redirection', $form_state->getValue('register_redirection'))->set('custom_login_url', $form_state->getValue('custom_login_url'))->set('custom_register_url', $form_state->getValue('custom_register_url'))->set('enable_linking', $form_state->getValue('enable_linking'))->set('linking_text', $form_state->getValue('linking_text'))->save();
     if (count(\Drupal::moduleHandler()->getImplementations('add_extra_sociallogin_config_settings')) > 0) {
         // Call all modules that implement the hook, and let them make changes to $variables.
         $config_data = \Drupal::moduleHandler()->invokeAll('add_extra_sociallogin_config_settings');
     }
     if (isset($config_data) && is_array($config_data)) {
         foreach ($config_data as $key => $value) {
             $this->config('sociallogin.settings')->set($value, $form_state->getValue($value))->save();
         }
     }
     drupal_set_message(t('Social Login settings have been saved.'), 'status');
     //Clear page cache
     foreach (Cache::getBins() as $service_id => $cache_backend) {
         if ($service_id == 'dynamic_page_cache') {
             $cache_backend->deleteAll();
         }
     }
 }

 /**
  * #pre_render callback for building the regions.
  */
 public function buildRegions(array $build)
 {
     $cacheability = CacheableMetadata::createFromRenderArray($build)->addCacheableDependency($this);
     $contexts = $this->getContexts();
     foreach ($this->getRegionAssignments() as $region => $blocks) {
         if (!$blocks) {
             continue;
         }
         $region_name = Html::getClass("block-region-{$region}");
         $build[$region]['#prefix'] = '<div class="' . $region_name . '">';
         $build[$region]['#suffix'] = '</div>';
         /** @var \Drupal\Core\Block\BlockPluginInterface[] $blocks */
         $weight = 0;
         foreach ($blocks as $block_id => $block) {
             if ($block instanceof ContextAwarePluginInterface) {
                 $this->contextHandler()->applyContextMapping($block, $contexts);
             }
             $access = $block->access($this->account, TRUE);
             $cacheability->addCacheableDependency($access);
             if (!$access->isAllowed()) {
                 continue;
             }
             $block_build = ['#theme' => 'block', '#attributes' => [], '#weight' => $weight++, '#configuration' => $block->getConfiguration(), '#plugin_id' => $block->getPluginId(), '#base_plugin_id' => $block->getBaseId(), '#derivative_plugin_id' => $block->getDerivativeId(), '#block_plugin' => $block, '#pre_render' => [[$this, 'buildBlock']], '#cache' => ['keys' => ['page_manager_block_display', $this->id(), 'block', $block_id], 'tags' => Cache::mergeTags($this->getCacheTags(), $block->getCacheTags()), 'contexts' => $block->getCacheContexts(), 'max-age' => $block->getCacheMaxAge()]];
             // Merge the cacheability metadata of blocks into the page. This helps
             // to avoid cache redirects if the blocks have more cache contexts than
             // the page, which the page must respect as well.
             $cacheability->addCacheableDependency($block);
             $build[$region][$block_id] = $block_build;
         }
     }
     $build['#title'] = $this->renderPageTitle($this->configuration['page_title']);
     $cacheability->applyTo($build);
     return $build;
 }

 /**
  * Tests contact link.
  */
 public function testContactLink()
 {
     $accounts = array();
     $accounts['root'] = User::load(1);
     // Create an account with access to all contact pages.
     $admin_account = $this->drupalCreateUser(array('administer users'));
     $accounts['admin'] = $admin_account;
     // Create an account with no access to contact pages.
     $no_contact_account = $this->drupalCreateUser();
     $accounts['no_contact'] = $no_contact_account;
     // Create an account with access to contact pages.
     $contact_account = $this->drupalCreateUser(array('access user contact forms'));
     $accounts['contact'] = $contact_account;
     $this->drupalLogin($admin_account);
     $this->drupalGet('test-contact-link');
     // The admin user has access to all contact links beside his own.
     $this->assertContactLinks($accounts, array('root', 'no_contact', 'contact'));
     $this->drupalLogin($no_contact_account);
     $this->drupalGet('test-contact-link');
     // Ensure that the user without the permission doesn't see any link.
     $this->assertContactLinks($accounts, array());
     $this->drupalLogin($contact_account);
     $this->drupalGet('test-contact-link');
     $this->assertContactLinks($accounts, array('root', 'admin', 'no_contact'));
     // Disable contact link for no_contact.
     $this->userData->set('contact', $no_contact_account->id(), 'enabled', FALSE);
     // @todo Remove cache invalidation in https://www.drupal.org/node/2477903.
     Cache::invalidateTags($no_contact_account->getCacheTagsToInvalidate());
     $this->drupalGet('test-contact-link');
     $this->assertContactLinks($accounts, array('root', 'admin'));
 }

 /**
  * {@inheritdoc}
  */
 public function getDerivativeDefinitions($base_plugin_definition)
 {
     $this->derivatives = [];
     /** @var \Drupal\rng\Entity\EventType[] $event_types */
     foreach ($this->eventManager->getEventTypes() as $entity_type => $event_types) {
         $cache_tags = $this->entityManager->getDefinition($entity_type)->getListCacheTags();
         foreach ($event_types as $event_type) {
             $cache_tags = Cache::mergeTags($cache_tags, $event_type->getCacheTags());
         }
         // Only need one set of tasks task per entity type.
         if ($this->routeProvider->getRouteByName("entity.{$entity_type}.canonical")) {
             $event_default = "rng.event.{$entity_type}.event.default";
             $this->derivatives[$event_default] = array('title' => t('Event'), 'base_route' => "entity.{$entity_type}.canonical", 'route_name' => "rng.event.{$entity_type}.event", 'weight' => 30, 'cache_tags' => $cache_tags);
             $this->derivatives["rng.event.{$entity_type}.event.settings"] = array('title' => t('Settings'), 'route_name' => $this->derivatives[$event_default]['route_name'], 'parent_id' => 'rng.local_tasks:' . $event_default, 'weight' => 10, 'cache_tags' => $cache_tags);
             $this->derivatives["rng.event.{$entity_type}.event.access"] = array('title' => t('Access'), 'route_name' => "rng.event.{$entity_type}.access", 'parent_id' => 'rng.local_tasks:' . $event_default, 'weight' => 20, 'cache_tags' => $cache_tags);
             $this->derivatives["rng.event.{$entity_type}.event.messages"] = array('title' => t('Messages'), 'route_name' => "rng.event.{$entity_type}.messages", 'parent_id' => 'rng.local_tasks:' . $event_default, 'weight' => 30, 'cache_tags' => $cache_tags);
             $this->derivatives["rng.event.{$entity_type}.event.group.list"] = array('title' => t('Groups'), 'route_name' => "rng.event.{$entity_type}.group.list", 'parent_id' => 'rng.local_tasks:' . $event_default, 'weight' => 40, 'cache_tags' => $cache_tags);
             $this->derivatives["rng.event.{$entity_type}.register.type_list"] = array('route_name' => "rng.event.{$entity_type}.register.type_list", 'base_route' => "entity.{$entity_type}.canonical", 'title' => t('Register'), 'weight' => 40, 'cache_tags' => $cache_tags);
         }
     }
     foreach ($this->derivatives as &$entry) {
         $entry += $base_plugin_definition;
     }
     return parent::getDerivativeDefinitions($base_plugin_definition);
 }

 /**
  * {@inheritdoc}
  */
 public function viewMultiple(array $entities = array(), $view_mode = 'full', $langcode = NULL)
 {
     /** @var \Drupal\block\BlockInterface[] $entities */
     $build = array();
     foreach ($entities as $entity) {
         $entity_id = $entity->id();
         $plugin = $entity->getPlugin();
         $cache_tags = Cache::mergeTags($this->getCacheTags(), $entity->getCacheTags());
         $cache_tags = Cache::mergeTags($cache_tags, $plugin->getCacheTags());
         // Create the render array for the block as a whole.
         // @see template_preprocess_block().
         $build[$entity_id] = array('#cache' => ['keys' => ['entity_view', 'block', $entity->id()], 'contexts' => Cache::mergeContexts($entity->getCacheContexts(), $plugin->getCacheContexts()), 'tags' => $cache_tags, 'max-age' => $plugin->getCacheMaxAge()], '#weight' => $entity->getWeight());
         // Allow altering of cacheability metadata or setting #create_placeholder.
         $this->moduleHandler->alter(['block_build', "block_build_" . $plugin->getBaseId()], $build[$entity_id], $plugin);
         if ($plugin instanceof MainContentBlockPluginInterface || $plugin instanceof TitleBlockPluginInterface) {
             // Immediately build a #pre_render-able block, since this block cannot
             // be built lazily.
             $build[$entity_id] += static::buildPreRenderableBlock($entity, $this->moduleHandler());
         } else {
             // Assign a #lazy_builder callback, which will generate a #pre_render-
             // able block lazily (when necessary).
             $build[$entity_id] += ['#lazy_builder' => [static::class . '::lazyBuilder', [$entity_id, $view_mode, $langcode]]];
         }
     }
     return $build;
 }

 /**
  * {@inheritdoc}
  *
  * Cached by role, invalidated whenever permissions change.
  */
 public function generate(AccountInterface $account)
 {
     // User 1 is the super user, and can always access all permissions. Use a
     // different, unique identifier for the hash.
     if ($account->id() == 1) {
         return $this->hash('is-super-user');
     }
     $sorted_roles = $account->getRoles();
     sort($sorted_roles);
     $role_list = implode(',', $sorted_roles);
     $cid = "user_permissions_hash:{$role_list}";
     if ($static_cache = $this->static->get($cid)) {
         return $static_cache->data;
     } else {
         $tags = Cache::buildTags('config:user.role', $sorted_roles, '.');
         if ($cache = $this->cache->get($cid)) {
             $permissions_hash = $cache->data;
         } else {
             $permissions_hash = $this->doGenerate($sorted_roles);
             $this->cache->set($cid, $permissions_hash, Cache::PERMANENT, $tags);
         }
         $this->static->set($cid, $permissions_hash, Cache::PERMANENT, $tags);
     }
     return $permissions_hash;
 }

 /**
  * {@inheritdoc}
  */
 public function submitForm(array &$form, FormStateInterface $form_state) {
   $this->config('dropdown_language.setting')
     ->set('wrapper', $form_state->getValue('wrapper'))
     ->save();
   parent::submitForm($form, $form_state);
   Cache::invalidateTags(['rendered']);
 }

 /**
  * {@inheritdoc}
  */
 public function viewMultiple(array $entities = array(), $view_mode = 'full', $langcode = NULL)
 {
     // @todo Remove when https://www.drupal.org/node/2453059 lands.
     $default_cache_contexts = ['languages', 'theme'];
     /** @var \Drupal\block\BlockInterface[] $entities */
     $build = array();
     foreach ($entities as $entity) {
         $entity_id = $entity->id();
         $plugin = $entity->getPlugin();
         $plugin_id = $plugin->getPluginId();
         $base_id = $plugin->getBaseId();
         $derivative_id = $plugin->getDerivativeId();
         $configuration = $plugin->getConfiguration();
         // Create the render array for the block as a whole.
         // @see template_preprocess_block().
         $build[$entity_id] = array('#theme' => 'block', '#attributes' => array(), '#contextual_links' => array('block' => array('route_parameters' => array('block' => $entity->id()))), '#weight' => $entity->getWeight(), '#configuration' => $configuration, '#plugin_id' => $plugin_id, '#base_plugin_id' => $base_id, '#derivative_plugin_id' => $derivative_id, '#id' => $entity->id(), '#cache' => ['contexts' => Cache::mergeContexts($default_cache_contexts, $plugin->getCacheContexts()), 'tags' => Cache::mergeTags($this->getCacheTags(), $entity->getCacheTags(), $plugin->getCacheTags()), 'max-age' => $plugin->getCacheMaxAge()], '#block' => $entity);
         $build[$entity_id]['#configuration']['label'] = String::checkPlain($configuration['label']);
         if ($plugin->isCacheable()) {
             $build[$entity_id]['#pre_render'][] = array($this, 'buildBlock');
             // Generic cache keys, with the block plugin's custom keys appended.
             $default_cache_keys = array('entity_view', 'block', $entity->id());
             $build[$entity_id]['#cache']['keys'] = array_merge($default_cache_keys, $plugin->getCacheKeys());
         } else {
             $build[$entity_id] = $this->buildBlock($build[$entity_id]);
         }
         // Don't run in ::buildBlock() to ensure cache keys can be altered. If an
         // alter hook wants to modify the block contents, it can append another
         // #pre_render hook.
         $this->moduleHandler()->alter(array('block_view', "block_view_{$base_id}"), $build[$entity_id], $plugin);
     }
     return $build;
 }

 /**
  * {@inheritdoc}
  */
 public function viewMultiple(array $entities = array(), $view_mode = 'full', $langcode = NULL)
 {
     /** @var \Drupal\block\BlockInterface[] $entities */
     $build = array();
     foreach ($entities as $entity) {
         $entity_id = $entity->id();
         $plugin = $entity->getPlugin();
         $plugin_id = $plugin->getPluginId();
         $base_id = $plugin->getBaseId();
         $derivative_id = $plugin->getDerivativeId();
         $configuration = $plugin->getConfiguration();
         // Create the render array for the block as a whole.
         // @see template_preprocess_block().
         $build[$entity_id] = array('#theme' => 'block', '#attributes' => array(), '#contextual_links' => array('block' => array('route_parameters' => array('block' => $entity->id()))), '#weight' => $entity->get('weight'), '#configuration' => $configuration, '#plugin_id' => $plugin_id, '#base_plugin_id' => $base_id, '#derivative_plugin_id' => $derivative_id, '#id' => $entity->id(), '#block' => $entity);
         $build[$entity_id]['#configuration']['label'] = String::checkPlain($configuration['label']);
         // Set cache tags; these always need to be set, whether the block is
         // cacheable or not, so that the page cache is correctly informed.
         $build[$entity_id]['#cache']['tags'] = Cache::mergeTags($this->getCacheTag(), $entity->getCacheTag(), $plugin->getCacheTags());
         if ($plugin->isCacheable()) {
             $build[$entity_id]['#pre_render'][] = array($this, 'buildBlock');
             // Generic cache keys, with the block plugin's custom keys appended
             // (usually cache context keys like 'cache_context.user.roles').
             $default_cache_keys = array('entity_view', 'block', $entity->id(), $this->languageManager->getCurrentLanguage()->getId(), 'cache_context.theme');
             $max_age = $plugin->getCacheMaxAge();
             $build[$entity_id]['#cache'] += array('keys' => array_merge($default_cache_keys, $plugin->getCacheKeys()), 'expire' => $max_age === Cache::PERMANENT ? Cache::PERMANENT : REQUEST_TIME + $max_age);
         } else {
             $build[$entity_id] = $this->buildBlock($build[$entity_id]);
         }
         // Don't run in ::buildBlock() to ensure cache keys can be altered. If an
         // alter hook wants to modify the block contents, it can append another
         // #pre_render hook.
         $this->moduleHandler()->alter(array('block_view', "block_view_{$base_id}"), $build[$entity_id], $plugin);
     }
     return $build;
 }

 /**
  * Tests the bubbling of cache tags.
  */
 public function testCacheTags()
 {
     /** @var \Drupal\Core\Render\RendererInterface $renderer */
     $renderer = $this->container->get('renderer');
     // Create the entity that will be commented upon.
     $commented_entity = entity_create('entity_test', array('name' => $this->randomMachineName()));
     $commented_entity->save();
     // Verify cache tags on the rendered entity before it has comments.
     $build = \Drupal::entityManager()->getViewBuilder('entity_test')->view($commented_entity);
     $renderer->renderRoot($build);
     $cache_context_tags = \Drupal::service('cache_contexts_manager')->convertTokensToKeys($build['#cache']['contexts'])->getCacheTags();
     $expected_cache_tags = Cache::mergeTags($cache_context_tags, ['entity_test_view', 'entity_test:' . $commented_entity->id(), 'comment_list', 'config:core.entity_form_display.comment.comment.default', 'config:field.field.comment.comment.comment_body', 'config:field.field.entity_test.entity_test.comment', 'config:field.storage.comment.comment_body', 'config:user.settings']);
     sort($expected_cache_tags);
     $this->assertEqual($build['#cache']['tags'], $expected_cache_tags);
     // Create a comment on that entity. Comment loading requires that the uid
     // also exists in the {users} table.
     $user = $this->createUser();
     $user->save();
     $comment = entity_create('comment', array('subject' => 'Llama', 'comment_body' => array('value' => 'Llamas are cool!', 'format' => 'plain_text'), 'entity_id' => $commented_entity->id(), 'entity_type' => 'entity_test', 'field_name' => 'comment', 'comment_type' => 'comment', 'status' => CommentInterface::PUBLISHED, 'uid' => $user->id()));
     $comment->save();
     // Load commented entity so comment_count gets computed.
     // @todo Remove the $reset = TRUE parameter after
     //   https://www.drupal.org/node/597236 lands. It's a temporary work-around.
     $commented_entity = entity_load('entity_test', $commented_entity->id(), TRUE);
     // Verify cache tags on the rendered entity when it has comments.
     $build = \Drupal::entityManager()->getViewBuilder('entity_test')->view($commented_entity);
     $renderer->renderRoot($build);
     $cache_context_tags = \Drupal::service('cache_contexts_manager')->convertTokensToKeys($build['#cache']['contexts'])->getCacheTags();
     $expected_cache_tags = Cache::mergeTags($cache_context_tags, ['entity_test_view', 'entity_test:' . $commented_entity->id(), 'comment_list', 'comment_view', 'comment:' . $comment->id(), 'config:filter.format.plain_text', 'user_view', 'user:2', 'config:core.entity_form_display.comment.comment.default', 'config:field.field.comment.comment.comment_body', 'config:field.field.entity_test.entity_test.comment', 'config:field.storage.comment.comment_body', 'config:user.settings']);
     sort($expected_cache_tags);
     $this->assertEqual($build['#cache']['tags'], $expected_cache_tags);
 }

 /**
  * Tests embedded users on node pages.
  */
 function testPictureOnNodeComment()
 {
     $this->drupalLogin($this->web_user);
     // Save a new picture.
     $image = current($this->drupalGetTestFiles('image'));
     $file = $this->saveUserPicture($image);
     $node = $this->drupalCreateNode(array('type' => 'article'));
     // Enable user pictures on nodes.
     $this->container->get('config.factory')->get('system.theme.global')->set('features.node_user_picture', TRUE)->save();
     // Verify that the image is displayed on the user account page.
     $this->drupalGet('node/' . $node->id());
     $this->assertRaw(file_uri_target($file->getFileUri()), 'User picture found on node page.');
     // Enable user pictures on comments, instead of nodes.
     $this->container->get('config.factory')->get('system.theme.global')->set('features.node_user_picture', FALSE)->set('features.comment_user_picture', TRUE)->save();
     // @todo Remove when https://www.drupal.org/node/2040135 lands.
     Cache::invalidateTags(['rendered']);
     $edit = array('comment_body[0][value]' => $this->randomString());
     $this->drupalPostForm('comment/reply/node/' . $node->id() . '/comment', $edit, t('Save'));
     $this->assertRaw(file_uri_target($file->getFileUri()), 'User picture found on comment.');
     // Disable user pictures on comments and nodes.
     $this->container->get('config.factory')->get('system.theme.global')->set('features.node_user_picture', FALSE)->set('features.comment_user_picture', FALSE)->save();
     // @todo Remove when https://www.drupal.org/node/2040135 lands.
     Cache::invalidateTags(['rendered']);
     $this->drupalGet('node/' . $node->id());
     $this->assertNoRaw(file_uri_target($file->getFileUri()), 'User picture not found on node and comment.');
 }

 /**
  * Tests that the block is cached with the correct contexts and tags.
  */
 public function testBlock()
 {
     $block = $this->drupalPlaceBlock('block_content:' . $this->entity->uuid());
     $build = $this->container->get('entity.manager')->getViewBuilder('block')->view($block, 'block');
     // Render the block.
     // @todo The request stack manipulation won't be necessary once
     //   https://www.drupal.org/node/2367555 is fixed and the
     //   corresponding $request->isMethodSafe() checks are removed from
     //   Drupal\Core\Render\Renderer.
     $request_stack = $this->container->get('request_stack');
     $request_stack->push(new Request());
     $this->container->get('renderer')->renderRoot($build);
     $request_stack->pop();
     // Expected keys, contexts, and tags for the block.
     // @see \Drupal\block\BlockViewBuilder::viewMultiple()
     $expected_block_cache_keys = ['entity_view', 'block', $block->id()];
     $expected_block_cache_contexts = ['languages:' . LanguageInterface::TYPE_INTERFACE, 'theme'];
     $expected_block_cache_tags = Cache::mergeTags(['block_view', 'rendered'], $block->getCacheTags(), $block->getPlugin()->getCacheTags());
     // Expected contexts and tags for the BlockContent entity.
     // @see \Drupal\Core\Entity\EntityViewBuilder::getBuildDefaults().
     $expected_entity_cache_contexts = ['theme'];
     $expected_entity_cache_tags = Cache::mergeTags(['block_content_view'], $this->entity->getCacheTags(), $this->getAdditionalCacheTagsForEntity($this->entity));
     // Verify that what was render cached matches the above expectations.
     $cid = $this->createCacheId($expected_block_cache_keys, $expected_block_cache_contexts);
     $redirected_cid = $this->createCacheId($expected_block_cache_keys, Cache::mergeContexts($expected_block_cache_contexts, $expected_entity_cache_contexts));
     $this->verifyRenderCache($cid, Cache::mergeTags($expected_block_cache_tags, $expected_entity_cache_tags), $cid !== $redirected_cid ? $redirected_cid : NULL);
 }

 /**
  * Tests the path cache.
  */
 function testPathCache()
 {
     // Create test node.
     $node1 = $this->drupalCreateNode();
     // Create alias.
     $edit = array();
     $edit['source'] = '/node/' . $node1->id();
     $edit['alias'] = '/' . $this->randomMachineName(8);
     $this->drupalPostForm('admin/config/search/path/add', $edit, t('Save'));
     // Check the path alias whitelist cache.
     $whitelist = \Drupal::cache()->get('path_alias_whitelist');
     $this->assertTrue($whitelist->data['node']);
     $this->assertFalse($whitelist->data['admin']);
     // Visit the system path for the node and confirm a cache entry is
     // created.
     \Drupal::cache('data')->deleteAll();
     // Make sure the path is not converted to the alias.
     $this->drupalGet(trim($edit['source'], '/'), array('alias' => TRUE));
     $this->assertTrue(\Drupal::cache('data')->get('preload-paths:' . $edit['source']), 'Cache entry was created.');
     // Visit the alias for the node and confirm a cache entry is created.
     \Drupal::cache('data')->deleteAll();
     // @todo Remove this once https://www.drupal.org/node/2480077 lands.
     Cache::invalidateTags(['rendered']);
     $this->drupalGet(trim($edit['alias'], '/'));
     $this->assertTrue(\Drupal::cache('data')->get('preload-paths:' . $edit['source']), 'Cache entry was created.');
 }

 /**
  * {@inheritdoc}
  */
 public function submitForm(array &$form, FormStateInterface $form_state)
 {
     $this->config('juicebox.settings')->set('apply_markup_filter', $form_state->getvalue('apply_markup_filter'))->set('enable_cors', $form_state->getvalue('enable_cors'))->set('translate_interface', $form_state->getvalue('translate_interface'))->set('base_languagelist', $form_state->getvalue('base_languagelist'))->set('juicebox_multisize_small', $form_state->getvalue('juicebox_multisize_small'))->set('juicebox_multisize_medium', $form_state->getvalue('juicebox_multisize_medium'))->set('juicebox_multisize_large', $form_state->getvalue('juicebox_multisize_large'))->save();
     // These settings are global and may affect any gallery embed or XML code,
     // so we need to clear everything tagged with juicebox_gallery cache tag.
     Cache::invalidateTags(array('juicebox_gallery'));
     drupal_set_message(t('The Juicebox configuration options have been saved'));
 }

 /**
  * Confirms that our FinishResponseSubscriber logic works properly.
  */
 public function testFinishResponseSubscriber()
 {
     $renderer_required_cache_contexts = ['languages:' . LanguageInterface::TYPE_INTERFACE, 'theme', 'user.permissions'];
     $expected_cache_contexts = Cache::mergeContexts($renderer_required_cache_contexts, ['url.query_args:' . MainContentViewSubscriber::WRAPPER_FORMAT]);
     // Confirm that the router can get to a controller.
     $this->drupalGet('router_test/test1');
     $this->assertRaw('test1', 'The correct string was returned because the route was successful.');
     // Check expected headers from FinishResponseSubscriber.
     $headers = $this->drupalGetHeaders();
     $this->assertEqual($headers['x-ua-compatible'], 'IE=edge');
     $this->assertEqual($headers['content-language'], 'en');
     $this->assertEqual($headers['x-content-type-options'], 'nosniff');
     $this->assertEqual($headers['x-frame-options'], 'SAMEORIGIN');
     $this->drupalGet('router_test/test2');
     $this->assertRaw('test2', 'The correct string was returned because the route was successful.');
     // Check expected headers from FinishResponseSubscriber.
     $headers = $this->drupalGetHeaders();
     $this->assertEqual($headers['x-drupal-cache-contexts'], implode(' ', $expected_cache_contexts));
     $this->assertEqual($headers['x-drupal-cache-tags'], 'config:user.role.anonymous rendered');
     // Confirm that the page wrapping is being added, so we're not getting a
     // raw body returned.
     $this->assertRaw('</html>', 'Page markup was found.');
     // In some instances, the subrequest handling may get confused and render
     // a page inception style.  This test verifies that is not happening.
     $this->assertNoPattern('#</body>.*</body>#s', 'There was no double-page effect from a misrendered subrequest.');
     // Confirm that route-level access check's cacheability is applied to the
     // X-Drupal-Cache-Contexts and X-Drupal-Cache-Tags headers.
     // 1. controller result: render array, globally cacheable route access.
     $this->drupalGet('router_test/test18');
     $headers = $this->drupalGetHeaders();
     $this->assertEqual($headers['x-drupal-cache-contexts'], implode(' ', Cache::mergeContexts($renderer_required_cache_contexts, ['url'])));
     $this->assertEqual($headers['x-drupal-cache-tags'], 'config:user.role.anonymous foo rendered');
     // 2. controller result: render array, per-role cacheable route access.
     $this->drupalGet('router_test/test19');
     $headers = $this->drupalGetHeaders();
     $this->assertEqual($headers['x-drupal-cache-contexts'], implode(' ', Cache::mergeContexts($renderer_required_cache_contexts, ['url', 'user.roles'])));
     $this->assertEqual($headers['x-drupal-cache-tags'], 'config:user.role.anonymous foo rendered');
     // 3. controller result: Response object, globally cacheable route access.
     $this->drupalGet('router_test/test1');
     $headers = $this->drupalGetHeaders();
     $this->assertFalse(isset($headers['x-drupal-cache-contexts']));
     $this->assertFalse(isset($headers['x-drupal-cache-tags']));
     // 4. controller result: Response object, per-role cacheable route access.
     $this->drupalGet('router_test/test20');
     $headers = $this->drupalGetHeaders();
     $this->assertFalse(isset($headers['x-drupal-cache-contexts']));
     $this->assertFalse(isset($headers['x-drupal-cache-tags']));
     // 5. controller result: CacheableResponse object, globally cacheable route access.
     $this->drupalGet('router_test/test21');
     $headers = $this->drupalGetHeaders();
     $this->assertEqual($headers['x-drupal-cache-contexts'], '');
     $this->assertEqual($headers['x-drupal-cache-tags'], '');
     // 6. controller result: CacheableResponse object, per-role cacheable route access.
     $this->drupalGet('router_test/test22');
     $headers = $this->drupalGetHeaders();
     $this->assertEqual($headers['x-drupal-cache-contexts'], 'user.roles');
     $this->assertEqual($headers['x-drupal-cache-tags'], '');
 }

 /**
  * Auxiliary function to get all available drupal caches.
  *
  * @return array The all available drupal caches
  */
 public function getCaches()
 {
     if (!$this->caches) {
         foreach (Cache::getBins() as $name => $bin) {
             $this->caches[$name] = $bin;
         }
     }
     return $this->caches;
 }

 /**
  * {@inheritdoc}
  */
 public function delete()
 {
     $this->data = array();
     $this->storage->delete($this->name);
     Cache::invalidateTags($this->getCacheTags());
     $this->isNew = TRUE;
     $this->eventDispatcher->dispatch(LanguageConfigOverrideEvents::DELETE_OVERRIDE, new LanguageConfigOverrideCrudEvent($this));
     $this->originalData = $this->data;
     return $this;
 }

 /**
  * Clear cache tables.
  */
 public function init()
 {
     $module_handler = \Drupal::moduleHandler();
     $module_handler->invokeAll('cache_flush');
     // Flush drupal cache tables.
     foreach (Cache::getBins() as $service_id => $cache_backend) {
         $cache_backend->deleteAll();
     }
     // Clear all plugin caches.
     \Drupal::service('plugin.cache_clearer')->clearCachedDefinitions();
     $this->prepare();
 }