NodeAttributesTest.php

<?php

namespace Drupal\Tests\rdf\Functional;

use Drupal\Core\Url;
use Drupal\Tests\node\Functional\NodeTestBase;
use Drupal\Tests\rdf\Traits\RdfParsingTrait;

/**
 * Tests the RDFa markup of Nodes.
 *
 * @group rdf
 * @group legacy
 */
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).');
    }

}