function GetNamespacesTest::testGetRdfNamespaces

Tests RDF namespaces.

File

drupal/core/modules/rdf/lib/Drupal/rdf/Tests/GetNamespacesTest.php, line 35
Definition of Drupal\rdf\Tests\GetNamespacesTest.

Class

GetNamespacesTest
Tests for RDF namespaces XML serialization.

Namespace

Drupal\rdf\Tests

Code

function testGetRdfNamespaces() {

  // Fetches the front page and extracts RDFa 1.1 prefixes.
  $this
    ->drupalGet('');
  $element = $this
    ->xpath('//html[contains(@prefix, :prefix_binding)]', array(
    ':prefix_binding' => 'rdfs: http://www.w3.org/2000/01/rdf-schema#',
  ));
  $this
    ->assertTrue(!empty($element), 'A prefix declared once is displayed.');
  $element = $this
    ->xpath('//html[contains(@prefix, :prefix_binding)]', array(
    ':prefix_binding' => 'foaf: http://xmlns.com/foaf/0.1/',
  ));
  $this
    ->assertTrue(!empty($element), 'The same prefix declared in several implementations of hook_rdf_namespaces() is valid as long as all the namespaces are the same.');
  $element = $this
    ->xpath('//html[contains(@prefix, :prefix_binding)]', array(
    ':prefix_binding' => 'foaf1: http://xmlns.com/foaf/0.1/',
  ));
  $this
    ->assertTrue(!empty($element), 'Two prefixes can be assigned the same namespace.');
  $element = $this
    ->xpath('//html[contains(@prefix, :prefix_binding)]', array(
    ':prefix_binding' => 'dc: http://purl.org/dc/terms/',
  ));
  $this
    ->assertTrue(!empty($element), 'When a prefix has conflicting namespaces, the first declared one is used.');
}