class NodeAttributesTest

class NodeAttributesTest extends NodeTestBase {
  use RdfParsingTrait;
  
  /**
   * Modules to enable.
   *
   * @var array
   */
  protected static $modules = [
    'rdf',
  ];
  
  /**
   * {@inheritdoc}
   */
  protected $defaultTheme = 'stark';
  
  /**
   * URI of the front page of the Drupal site.
   *
   * @var string
   */
  protected $baseUri;
  
  /**
   * {@inheritdoc}
   */
  protected function setUp() : void {
    parent::setUp();
    rdf_get_mapping('node', 'article')->setBundleMapping([
      'types' => [
        'sioc:Item',
        'foaf:Document',
      ],
    ])
      ->setFieldMapping('title', [
      'properties' => [
        'dc:title',
      ],
    ])
      ->setFieldMapping('created', [
      'properties' => [
        'dc:date',
        'dc:created',
      ],
      'datatype' => 'xsd:dateTime',
      'datatype_callback' => [
        'callable' => 'Drupal\\rdf\\CommonDataConverter::dateIso8601Value',
      ],
    ])
      ->save();
    // Prepares commonly used URIs.
    $this->baseUri = Url::fromRoute('<front>', [], [
      'absolute' => TRUE,
    ])->toString();
  }
  
  /**
   * Creates a node of type article and tests its RDFa markup.
   */
  public function testNodeAttributes() {
    // Create node with single quotation mark title to ensure it does not get
    // escaped more than once.
    $node = $this->drupalCreateNode([
      'type' => 'article',
      'title' => $this->randomMachineName(8) . "'",
    ]);
    $node_uri = $node->toUrl('canonical', [
      'absolute' => TRUE,
    ])
      ->toString();
    $this->drupalGet($node->toUrl());
    // Inspects RDF graph output.
    // Node type.
    $expected_value = [
      'type' => 'uri',
      'value' => 'http://rdfs.org/sioc/ns#Item',
    ];
    $this->assertTrue($this->hasRdfProperty($this->getSession()
      ->getPage()
      ->getContent(), $this->baseUri, $node_uri, 'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', $expected_value), 'Node type found in RDF output (sioc:Item).');
    // Node type.
    $expected_value = [
      'type' => 'uri',
      'value' => 'http://xmlns.com/foaf/0.1/Document',
    ];
    $this->assertTrue($this->hasRdfProperty($this->getSession()
      ->getPage()
      ->getContent(), $this->baseUri, $node_uri, 'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', $expected_value), 'Node type found in RDF output (foaf:Document).');
    // Node title.
    $expected_value = [
      'type' => 'literal',
      'value' => $node->getTitle(),
      'lang' => 'en',
    ];
    $this->assertTrue($this->hasRdfProperty($this->getSession()
      ->getPage()
      ->getContent(), $this->baseUri, $node_uri, 'http://purl.org/dc/terms/title', $expected_value), 'Node title found in RDF output (dc:title).');
    // Node date (date format must be UTC).
    $expected_value = [
      'type' => 'literal',
      'value' => \Drupal::service('date.formatter')->format($node->getCreatedTime(), 'custom', 'c', 'UTC'),
      'datatype' => 'http://www.w3.org/2001/XMLSchema#dateTime',
    ];
    $this->assertTrue($this->hasRdfProperty($this->getSession()
      ->getPage()
      ->getContent(), $this->baseUri, $node_uri, 'http://purl.org/dc/terms/date', $expected_value), 'Node date found in RDF output (dc:date).');
    // Node date (date format must be UTC).
    $expected_value = [
      'type' => 'literal',
      'value' => \Drupal::service('date.formatter')->format($node->getCreatedTime(), 'custom', 'c', 'UTC'),
      'datatype' => 'http://www.w3.org/2001/XMLSchema#dateTime',
    ];
    $this->assertTrue($this->hasRdfProperty($this->getSession()
      ->getPage()
      ->getContent(), $this->baseUri, $node_uri, 'http://purl.org/dc/terms/created', $expected_value), 'Node date found in RDF output (dc:created).');
  }

}