Chris@0: <?php
Chris@0: 
Chris@0: namespace Drupal\Tests\rdf\Functional;
Chris@0: 
Chris@0: use Drupal\Core\Url;
Chris@0: use Drupal\file\Entity\File;
Chris@0: use Drupal\image\Entity\ImageStyle;
Chris@0: use Drupal\node\Entity\NodeType;
Chris@0: use Drupal\node\NodeInterface;
Chris@0: use Drupal\Tests\BrowserTestBase;
Chris@0: use Drupal\comment\Entity\Comment;
Chris@0: use Drupal\taxonomy\Entity\Term;
Chris@0: 
Chris@0: /**
Chris@0:  * Tests the RDF mappings and RDFa markup of the standard profile.
Chris@0:  *
Chris@0:  * @group rdf
Chris@0:  */
Chris@0: class StandardProfileTest extends BrowserTestBase {
Chris@0: 
Chris@0:   /**
Chris@0:    * The profile used during tests.
Chris@0:    *
Chris@0:    * This purposefully uses the standard profile.
Chris@0:    *
Chris@0:    * @var string
Chris@0:    */
Chris@0:   public $profile = 'standard';
Chris@0: 
Chris@0:   /**
Chris@0:    * @var string
Chris@0:    */
Chris@0:   protected $baseUri;
Chris@0: 
Chris@0:   /**
Chris@0:    * @var \Drupal\user\UserInterface
Chris@0:    */
Chris@0:   protected $adminUser;
Chris@0: 
Chris@0:   /**
Chris@0:    * @var \Drupal\user\UserInterface
Chris@0:    */
Chris@0:   protected $webUser;
Chris@0: 
Chris@0:   /**
Chris@0:    * @var \Drupal\taxonomy\TermInterface
Chris@0:    */
Chris@0:   protected $term;
Chris@0: 
Chris@0:   /**
Chris@0:    * @var \Drupal\file\FileInterface
Chris@0:    */
Chris@0:   protected $image;
Chris@0: 
Chris@0:   /**
Chris@0:    * @var \Drupal\node\NodeInterface
Chris@0:    */
Chris@0:   protected $article;
Chris@0: 
Chris@0:   /**
Chris@0:    * @var \Drupal\comment\CommentInterface
Chris@0:    */
Chris@0:   protected $articleComment;
Chris@0: 
Chris@0:   /**
Chris@0:    * @var \Drupal\node\NodeInterface
Chris@0:    */
Chris@0:   protected $page;
Chris@0: 
Chris@0:   /**
Chris@0:    * @var string
Chris@0:    */
Chris@0:   protected $imageUri;
Chris@0: 
Chris@0:   /**
Chris@0:    * @var string
Chris@0:    */
Chris@0:   protected $termUri;
Chris@0: 
Chris@0:   /**
Chris@0:    * @var string
Chris@0:    */
Chris@0:   protected $articleUri;
Chris@0: 
Chris@0:   /**
Chris@0:    * @var string
Chris@0:    */
Chris@0:   protected $pageUri;
Chris@0: 
Chris@0:   /**
Chris@0:    * @var string
Chris@0:    */
Chris@0:   protected $authorUri;
Chris@0: 
Chris@0:   /**
Chris@0:    * @var string
Chris@0:    */
Chris@0:   protected $articleCommentUri;
Chris@0: 
Chris@0:   /**
Chris@0:    * @var string
Chris@0:    */
Chris@0:   protected $commenterUri;
Chris@0: 
Chris@0:   protected function setUp() {
Chris@0:     parent::setUp();
Chris@0: 
Chris@0:     // Use Classy theme for testing markup output.
Chris@0:     \Drupal::service('theme_handler')->install(['classy']);
Chris@0:     $this->config('system.theme')->set('default', 'classy')->save();
Chris@0: 
Chris@18:     $this->baseUri = Url::fromRoute('<front>', [], ['absolute' => TRUE])->toString();
Chris@0: 
Chris@0:     // Create two test users.
Chris@0:     $this->adminUser = $this->drupalCreateUser([
Chris@0:       'administer content types',
Chris@0:       'administer comments',
Chris@0:       'access comments',
Chris@0:       'access content',
Chris@0:     ]);
Chris@0:     $this->webUser = $this->drupalCreateUser([
Chris@0:       'access comments',
Chris@0:       'post comments',
Chris@0:       'skip comment approval',
Chris@0:       'access content',
Chris@0:     ]);
Chris@0: 
Chris@0:     $this->drupalLogin($this->adminUser);
Chris@0: 
Chris@0:     // Create term.
Chris@0:     $this->term = Term::create([
Chris@0:       'name' => $this->randomMachineName(),
Chris@0:       'description' => $this->randomMachineName(),
Chris@0:       'vid' => 'tags',
Chris@0:     ]);
Chris@0:     $this->term->save();
Chris@0: 
Chris@0:     // Create image.
Chris@18:     \Drupal::service('file_system')->copy($this->root . '/core/misc/druplicon.png', 'public://example.jpg');
Chris@0:     $this->image = File::create(['uri' => 'public://example.jpg']);
Chris@0:     $this->image->save();
Chris@0: 
Chris@0:     // Create article.
Chris@0:     $article_settings = [
Chris@0:       'type' => 'article',
Chris@0:       'promote' => NodeInterface::PROMOTED,
Chris@0:       'field_image' => [
Chris@0:         [
Chris@0:           'target_id' => $this->image->id(),
Chris@0:         ],
Chris@0:       ],
Chris@0:       'field_tags' => [
Chris@0:         [
Chris@0:           'target_id' => $this->term->id(),
Chris@0:         ],
Chris@0:       ],
Chris@0:     ];
Chris@0:     $this->article = $this->drupalCreateNode($article_settings);
Chris@0:     // Create second article to test teaser list.
Chris@0:     $this->drupalCreateNode(['type' => 'article', 'promote' => NodeInterface::PROMOTED]);
Chris@0: 
Chris@0:     // Create article comment.
Chris@0:     $this->articleComment = $this->saveComment($this->article->id(), $this->webUser->id(), NULL, 0);
Chris@0: 
Chris@0:     // Create page.
Chris@0:     $this->page = $this->drupalCreateNode(['type' => 'page']);
Chris@0: 
Chris@0:     // Set URIs.
Chris@0:     // Image.
Chris@0:     $image_file = $this->article->get('field_image')->entity;
Chris@0:     $this->imageUri = ImageStyle::load('large')->buildUrl($image_file->getFileUri());
Chris@0:     // Term.
Chris@18:     $this->termUri = $this->term->toUrl('canonical', ['absolute' => TRUE])->toString();
Chris@0:     // Article.
Chris@18:     $this->articleUri = $this->article->toUrl('canonical', ['absolute' => TRUE])->toString();
Chris@0:     // Page.
Chris@18:     $this->pageUri = $this->page->toUrl('canonical', ['absolute' => TRUE])->toString();
Chris@0:     // Author.
Chris@18:     $this->authorUri = $this->adminUser->toUrl('canonical', ['absolute' => TRUE])->toString();
Chris@0:     // Comment.
Chris@18:     $this->articleCommentUri = $this->articleComment->toUrl('canonical', ['absolute' => TRUE])->toString();
Chris@0:     // Commenter.
Chris@18:     $this->commenterUri = $this->webUser->toUrl('canonical', ['absolute' => TRUE])->toString();
Chris@0: 
Chris@0:     $this->drupalLogout();
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * Tests that data is exposed correctly when using standard profile.
Chris@0:    *
Chris@0:    * Because tests using standard profile take a very long time to run, and
Chris@0:    * because there is no manipulation of config or data within the test, simply
Chris@0:    * run all the tests from within this function.
Chris@0:    */
Chris@0:   public function testRdfaOutput() {
Chris@0:     $this->doFrontPageRdfaTests();
Chris@0:     $this->doArticleRdfaTests();
Chris@0:     $this->doPageRdfaTests();
Chris@0:     $this->doUserRdfaTests();
Chris@0:     $this->doTermRdfaTests();
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * Tests that data is exposed in the front page teasers.
Chris@0:    */
Chris@0:   protected function doFrontPageRdfaTests() {
Chris@0:     // Feed the HTML into the parser.
Chris@0:     $graph = $this->getRdfGraph(Url::fromRoute('<front>'));
Chris@0: 
Chris@0:     // Ensure that both articles are listed.
Chris@0:     $this->assertEqual(2, count($graph->allOfType('http://schema.org/Article')), 'Two articles found on front page.');
Chris@0: 
Chris@0:     // Test interaction count.
Chris@0:     $expected_value = [
Chris@0:       'type' => 'literal',
Chris@0:       'value' => 'UserComments:1',
Chris@0:       'lang' => 'en',
Chris@0:     ];
Chris@0:     $this->assertTrue($graph->hasProperty($this->articleUri, 'http://schema.org/interactionCount', $expected_value), "Teaser comment count was found (schema:interactionCount).");
Chris@0: 
Chris@0:     // Test the properties that are common between pages and articles and are
Chris@0:     // displayed in full and teaser mode.
Chris@0:     $this->assertRdfaCommonNodeProperties($graph, $this->article, "Teaser");
Chris@0:     // Test properties that are displayed in both teaser and full mode.
Chris@0:     $this->assertRdfaArticleProperties($graph, "Teaser");
Chris@0: 
Chris@0:     // @todo Once the image points to the original instead of the processed
Chris@0:     //   image, move this to testArticleProperties().
Chris@0:     $image_file = $this->article->get('field_image')->entity;
Chris@0:     $image_uri = ImageStyle::load('medium')->buildUrl($image_file->getFileUri());
Chris@0:     $expected_value = [
Chris@0:       'type' => 'uri',
Chris@0:       'value' => $image_uri,
Chris@0:     ];
Chris@0:     $this->assertTrue($graph->hasProperty($this->articleUri, 'http://schema.org/image', $expected_value), "Teaser image was found (schema:image).");
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * Tests that article data is exposed using RDFa.
Chris@0:    *
Chris@0:    * Two fields are not tested for output here. Changed date is not displayed
Chris@0:    * on the page, so there is no test for output in node view. Comment count is
Chris@0:    * displayed in teaser view, so it is tested in the front article tests.
Chris@0:    */
Chris@0:   protected function doArticleRdfaTests() {
Chris@0:     // Feed the HTML into the parser.
Chris@18:     $graph = $this->getRdfGraph($this->article->toUrl());
Chris@0: 
Chris@0:     // Type.
Chris@0:     $this->assertEqual($graph->type($this->articleUri), 'schema:Article', 'Article type was found (schema:Article).');
Chris@0: 
Chris@0:     // Test the properties that are common between pages and articles.
Chris@0:     $this->assertRdfaCommonNodeProperties($graph, $this->article, "Article");
Chris@0:     // Test properties that are displayed in both teaser and full mode.
Chris@0:     $this->assertRdfaArticleProperties($graph, "Article");
Chris@0:     // Test the comment properties displayed on articles.
Chris@0:     $this->assertRdfaNodeCommentProperties($graph);
Chris@0: 
Chris@0:     // @todo Once the image points to the original instead of the processed
Chris@0:     //   image, move this to testArticleProperties().
Chris@0:     $expected_value = [
Chris@0:       'type' => 'uri',
Chris@0:       'value' => $this->imageUri,
Chris@0:     ];
Chris@0:     $this->assertTrue($graph->hasProperty($this->articleUri, 'http://schema.org/image', $expected_value), "Article image was found (schema:image).");
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * Tests that page data is exposed using RDFa.
Chris@0:    *
Chris@0:    * Two fields are not tested for output here. Changed date is not displayed
Chris@0:    * on the page, so there is no test for output in node view. Comment count is
Chris@0:    * displayed in teaser view, so it is tested in the front page tests.
Chris@0:    */
Chris@0:   protected function doPageRdfaTests() {
Chris@0:     // The standard profile hides the created date on pages. Revert display to
Chris@0:     // true for testing.
Chris@0:     // @todo Clean-up standard profile defaults.
Chris@0:     $node_type = NodeType::load('page');
Chris@0:     $node_type->setDisplaySubmitted(TRUE);
Chris@0:     $node_type->save();
Chris@0: 
Chris@0:     // Feed the HTML into the parser.
Chris@18:     $graph = $this->getRdfGraph($this->page->toUrl());
Chris@0: 
Chris@0:     // Type.
Chris@0:     $this->assertEqual($graph->type($this->pageUri), 'schema:WebPage', 'Page type was found (schema:WebPage).');
Chris@0: 
Chris@0:     // Test the properties that are common between pages and articles.
Chris@0:     $this->assertRdfaCommonNodeProperties($graph, $this->page, "Page");
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * Tests that user data is exposed on user page.
Chris@0:    */
Chris@0:   protected function doUserRdfaTests() {
Chris@0:     $this->drupalLogin($this->rootUser);
Chris@0: 
Chris@0:     // Feed the HTML into the parser.
Chris@18:     $graph = $this->getRdfGraph($this->adminUser->toUrl());
Chris@0: 
Chris@0:     // User type.
Chris@0:     $this->assertEqual($graph->type($this->authorUri), 'schema:Person', "User type was found (schema:Person) on user page.");
Chris@0: 
Chris@0:     // User name.
Chris@0:     $expected_value = [
Chris@0:       'type' => 'literal',
Chris@0:       'value' => $this->adminUser->label(),
Chris@0:     ];
Chris@0:     $this->assertTrue($graph->hasProperty($this->authorUri, 'http://schema.org/name', $expected_value), "User name was found (schema:name) on user page.");
Chris@0: 
Chris@0:     $this->drupalLogout();
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * Tests that term data is exposed on term page.
Chris@0:    */
Chris@0:   protected function doTermRdfaTests() {
Chris@0:     // Feed the HTML into the parser.
Chris@18:     $graph = $this->getRdfGraph($this->term->toUrl());
Chris@0: 
Chris@0:     // Term type.
Chris@0:     $this->assertEqual($graph->type($this->termUri), 'schema:Thing', "Term type was found (schema:Thing) on term page.");
Chris@0: 
Chris@0:     // Term name.
Chris@0:     $expected_value = [
Chris@0:       'type' => 'literal',
Chris@0:       'value' => $this->term->getName(),
Chris@0:       'lang' => 'en',
Chris@0:     ];
Chris@0:     $this->assertTrue($graph->hasProperty($this->termUri, 'http://schema.org/name', $expected_value), "Term name was found (schema:name) on term page.");
Chris@0: 
Chris@0:     // @todo Add test for term description once it is a field:
Chris@0:     //   https://www.drupal.org/node/569434.
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * Tests output for properties held in common between articles and pages.
Chris@0:    *
Chris@0:    * @param \EasyRdf_Graph $graph
Chris@0:    *   The EasyRDF graph object.
Chris@0:    * @param \Drupal\node\NodeInterface $node
Chris@0:    *   The node being displayed.
Chris@0:    * @param string $message_prefix
Chris@0:    *   The word to use in the test assertion message.
Chris@0:    */
Chris@0:   protected function assertRdfaCommonNodeProperties($graph, NodeInterface $node, $message_prefix) {
Chris@18:     $uri = $node->toUrl('canonical', ['absolute' => TRUE])->toString();
Chris@0: 
Chris@0:     // Title.
Chris@0:     $expected_value = [
Chris@0:       'type' => 'literal',
Chris@0:       'value' => $node->get('title')->value,
Chris@0:       'lang' => 'en',
Chris@0:     ];
Chris@0:     $this->assertTrue($graph->hasProperty($uri, 'http://schema.org/name', $expected_value), "$message_prefix title was found (schema:name).");
Chris@0: 
Chris@0:     // Created date.
Chris@0:     $expected_value = [
Chris@0:       'type' => 'literal',
Chris@18:       'value' => $this->container->get('date.formatter')->format($node->get('created')->value, 'custom', 'c', 'UTC'),
Chris@0:       'lang' => 'en',
Chris@0:     ];
Chris@0:     $this->assertTrue($graph->hasProperty($uri, 'http://schema.org/dateCreated', $expected_value), "$message_prefix created date was found (schema:dateCreated) in teaser.");
Chris@0: 
Chris@0:     // Body.
Chris@0:     $expected_value = [
Chris@0:       'type' => 'literal',
Chris@0:       'value' => $node->get('body')->value,
Chris@0:       'lang' => 'en',
Chris@0:     ];
Chris@0:     $this->assertTrue($graph->hasProperty($uri, 'http://schema.org/text', $expected_value), "$message_prefix body was found (schema:text) in teaser.");
Chris@0: 
Chris@0:     // Author.
Chris@0:     $expected_value = [
Chris@0:       'type' => 'uri',
Chris@0:       'value' => $this->authorUri,
Chris@0:     ];
Chris@0:     $this->assertTrue($graph->hasProperty($uri, 'http://schema.org/author', $expected_value), "$message_prefix author was found (schema:author) in teaser.");
Chris@0: 
Chris@0:     // Author type.
Chris@0:     $this->assertEqual($graph->type($this->authorUri), 'schema:Person', "$message_prefix author type was found (schema:Person).");
Chris@0: 
Chris@0:     // Author name.
Chris@0:     $expected_value = [
Chris@0:       'type' => 'literal',
Chris@0:       'value' => $this->adminUser->label(),
Chris@0:     ];
Chris@0:     $this->assertTrue($graph->hasProperty($this->authorUri, 'http://schema.org/name', $expected_value), "$message_prefix author name was found (schema:name).");
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * Tests output for article properties displayed in both view modes.
Chris@0:    *
Chris@0:    * @param \EasyRdf_Graph $graph
Chris@0:    *   The EasyRDF graph object.
Chris@0:    * @param string $message_prefix
Chris@0:    *   The word to use in the test assertion message.
Chris@0:    */
Chris@0:   protected function assertRdfaArticleProperties($graph, $message_prefix) {
Chris@0:     // Tags.
Chris@0:     $expected_value = [
Chris@0:       'type' => 'uri',
Chris@0:       'value' => $this->termUri,
Chris@0:     ];
Chris@0:     $this->assertTrue($graph->hasProperty($this->articleUri, 'http://schema.org/about', $expected_value), "$message_prefix tag was found (schema:about).");
Chris@0: 
Chris@0:     // Tag type.
Chris@0:     // @todo Enable with https://www.drupal.org/node/2072791.
Chris@0:     // $this->assertEqual($graph->type($this->termUri), 'schema:Thing', 'Tag type was found (schema:Thing).');
Chris@0: 
Chris@0:     // Tag name.
Chris@0:     $expected_value = [
Chris@0:       'type' => 'literal',
Chris@0:       'value' => $this->term->getName(),
Chris@0:       'lang' => 'en',
Chris@0:     ];
Chris@0:     // @todo Enable with https://www.drupal.org/node/2072791.
Chris@0:     // $this->assertTrue($graph->hasProperty($this->termUri, 'http://schema.org/name', $expected_value), "$message_prefix name was found (schema:name).");
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * Tests output for comment properties on nodes in full page view mode.
Chris@0:    *
Chris@0:    * @param \EasyRdf_Graph $graph
Chris@0:    *   The EasyRDF graph object.
Chris@0:    */
Chris@0:   protected function assertRdfaNodeCommentProperties($graph) {
Chris@0:     // Relationship between node and comment.
Chris@0:     $expected_value = [
Chris@0:       'type' => 'uri',
Chris@0:       'value' => $this->articleCommentUri,
Chris@0:     ];
Chris@0:     $this->assertTrue($graph->hasProperty($this->articleUri, 'http://schema.org/comment', $expected_value), 'Relationship between node and comment found (schema:comment).');
Chris@0: 
Chris@0:     // Comment type.
Chris@0:     $this->assertEqual($graph->type($this->articleCommentUri), 'schema:Comment', 'Comment type was found (schema:Comment).');
Chris@0: 
Chris@0:     // Comment title.
Chris@0:     $expected_value = [
Chris@0:       'type' => 'literal',
Chris@0:       'value' => $this->articleComment->get('subject')->value,
Chris@0:       'lang' => 'en',
Chris@0:     ];
Chris@0:     $this->assertTrue($graph->hasProperty($this->articleCommentUri, 'http://schema.org/name', $expected_value), 'Article comment title was found (schema:name).');
Chris@0: 
Chris@0:     // Comment created date.
Chris@0:     $expected_value = [
Chris@0:       'type' => 'literal',
Chris@18:       'value' => $this->container->get('date.formatter')->format($this->articleComment->get('created')->value, 'custom', 'c', 'UTC'),
Chris@0:       'lang' => 'en',
Chris@0:     ];
Chris@0:     $this->assertTrue($graph->hasProperty($this->articleCommentUri, 'http://schema.org/dateCreated', $expected_value), 'Article comment created date was found (schema:dateCreated).');
Chris@0: 
Chris@0:     // Comment body.
Chris@0:     $text = $this->articleComment->get('comment_body')->value;
Chris@0:     $expected_value = [
Chris@0:       'type' => 'literal',
Chris@0:       // There is an extra carriage return in the when parsing comments as
Chris@0:       // output by Bartik, so it must be added to the expected value.
Chris@0:       'value' => "$text
Chris@0: ",
Chris@0:       'lang' => 'en',
Chris@0:     ];
Chris@0:     $this->assertTrue($graph->hasProperty($this->articleCommentUri, 'http://schema.org/text', $expected_value), 'Article comment body was found (schema:text).');
Chris@0: 
Chris@0:     // Comment uid.
Chris@0:     $expected_value = [
Chris@0:       'type' => 'uri',
Chris@0:       'value' => $this->commenterUri,
Chris@0:     ];
Chris@0:     $this->assertTrue($graph->hasProperty($this->articleCommentUri, 'http://schema.org/author', $expected_value), 'Article comment author was found (schema:author).');
Chris@0: 
Chris@0:     // Comment author type.
Chris@0:     $this->assertEqual($graph->type($this->commenterUri), 'schema:Person', 'Comment author type was found (schema:Person).');
Chris@0: 
Chris@0:     // Comment author name.
Chris@0:     $expected_value = [
Chris@0:       'type' => 'literal',
Chris@18:       'value' => $this->webUser->getAccountName(),
Chris@0:     ];
Chris@0:     $this->assertTrue($graph->hasProperty($this->commenterUri, 'http://schema.org/name', $expected_value), 'Comment author name was found (schema:name).');
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * Creates a comment entity.
Chris@0:    *
Chris@0:    * @param int $nid
Chris@0:    *   Node id which will hold the comment.
Chris@0:    * @param int $uid
Chris@0:    *   User id of the author of the comment. Can be NULL if $contact provided.
Chris@0:    * @param mixed $contact
Chris@0:    *   Set to NULL for no contact info, TRUE to ignore success checking, and
Chris@0:    *   array of values to set contact info.
Chris@0:    * @param int $pid
Chris@0:    *   Comment id of the parent comment in a thread.
Chris@0:    *
Chris@0:    * @return \Drupal\comment\Entity\Comment
Chris@0:    *   The saved comment.
Chris@0:    */
Chris@0:   protected function saveComment($nid, $uid, $contact = NULL, $pid = 0) {
Chris@0:     $values = [
Chris@0:       'entity_id' => $nid,
Chris@0:       'entity_type' => 'node',
Chris@0:       'field_name' => 'comment',
Chris@0:       'uid' => $uid,
Chris@0:       'pid' => $pid,
Chris@0:       'subject' => $this->randomMachineName(),
Chris@0:       'comment_body' => $this->randomMachineName(),
Chris@0:       'status' => 1,
Chris@0:     ];
Chris@0:     if ($contact) {
Chris@0:       $values += $contact;
Chris@0:     }
Chris@0: 
Chris@0:     $comment = Comment::create($values);
Chris@0:     $comment->save();
Chris@0:     return $comment;
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * Get the EasyRdf_Graph object for a page.
Chris@0:    *
Chris@0:    * @param \Drupal\Core\Url $url
Chris@0:    *   The URL object for the page.
Chris@0:    *
Chris@0:    * @return \EasyRdf_Graph
Chris@0:    *   The RDF graph object.
Chris@0:    */
Chris@0:   protected function getRdfGraph(Url $url) {
Chris@0:     $parser = new \EasyRdf_Parser_Rdfa();
Chris@0:     $graph = new \EasyRdf_Graph();
Chris@0:     $parser->parse($graph, $this->drupalGet($url), 'rdfa', $this->baseUri);
Chris@0:     return $graph;
Chris@0:   }
Chris@0: 
Chris@0: }