Chris@0: <?php
Chris@0: 
Chris@0: namespace Drupal\rdf\Tests;
Chris@0: 
Chris@0: use Drupal\simpletest\WebTestBase;
Chris@0: 
Chris@0: /**
Chris@0:  * Confirm that the serialization of RDF namespaces in present in the HTML
Chris@0:  * markup.
Chris@0:  *
Chris@0:  * @group rdf
Chris@0:  */
Chris@0: class GetNamespacesTest extends WebTestBase {
Chris@0: 
Chris@0:   /**
Chris@0:    * Modules to enable.
Chris@0:    *
Chris@0:    * @var array
Chris@0:    */
Chris@0:   public static $modules = ['rdf', 'rdf_test_namespaces'];
Chris@0: 
Chris@0:   /**
Chris@0:    * Tests RDF namespaces.
Chris@0:    */
Chris@0:   public function testGetRdfNamespaces() {
Chris@0:     // Fetches the front page and extracts RDFa 1.1 prefixes.
Chris@0:     $this->drupalGet('');
Chris@0: 
Chris@0:     $element = $this->xpath('//html[contains(@prefix, :prefix_binding)]', [
Chris@0:       ':prefix_binding' => 'rdfs: http://www.w3.org/2000/01/rdf-schema#',
Chris@0:     ]);
Chris@0:     $this->assertTrue(!empty($element), 'A prefix declared once is displayed.');
Chris@0: 
Chris@0:     $element = $this->xpath('//html[contains(@prefix, :prefix_binding)]', [
Chris@0:       ':prefix_binding' => 'foaf: http://xmlns.com/foaf/0.1/',
Chris@0:     ]);
Chris@0:     $this->assertTrue(!empty($element), 'The same prefix declared in several implementations of hook_rdf_namespaces() is valid as long as all the namespaces are the same.');
Chris@0: 
Chris@0:     $element = $this->xpath('//html[contains(@prefix, :prefix_binding)]', [
Chris@0:       ':prefix_binding' => 'foaf1: http://xmlns.com/foaf/0.1/',
Chris@0:     ]);
Chris@0:     $this->assertTrue(!empty($element), 'Two prefixes can be assigned the same namespace.');
Chris@0: 
Chris@0:     $element = $this->xpath('//html[contains(@prefix, :prefix_binding)]', [
Chris@0:       ':prefix_binding' => 'dc: http://purl.org/dc/terms/',
Chris@0:     ]);
Chris@0:     $this->assertTrue(!empty($element), 'When a prefix has conflicting namespaces, the first declared one is used.');
Chris@0:   }
Chris@0: 
Chris@0: }