TaxonomyAttributesTest.php

<?php

namespace Drupal\Tests\rdf\Functional;

use Drupal\Core\Url;
use Drupal\Tests\taxonomy\Functional\TaxonomyTestBase;
use Drupal\Tests\rdf\Traits\RdfParsingTrait;

/**
 * Tests the RDFa markup of Taxonomy terms.
 *
 * @group rdf
 * @group legacy
 */
class TaxonomyAttributesTest extends TaxonomyTestBase {
    use RdfParsingTrait;
    
    /**
     * Modules to enable.
     *
     * @var array
     */
    protected static $modules = [
        'rdf',
        'views',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * URI of the front page of the Drupal site.
     *
     * @var string
     */
    protected $baseUri;
    
    /**
     * Vocabulary created for testing purposes.
     *
     * @var \Drupal\taxonomy\VocabularyInterface
     */
    protected $vocabulary;
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        $this->vocabulary = $this->createVocabulary();
        // RDF mapping - term bundle.
        rdf_get_mapping('taxonomy_term', $this->vocabulary
            ->id())
            ->setBundleMapping([
            'types' => [
                'skos:Concept',
            ],
        ])
            ->setFieldMapping('name', [
            'properties' => [
                'rdfs:label',
                'skos:prefLabel',
            ],
        ])
            ->save();
        // Prepares commonly used URIs.
        $this->baseUri = Url::fromRoute('<front>', [], [
            'absolute' => TRUE,
        ])->toString();
    }
    
    /**
     * Creates a random term and ensures the RDF output is correct.
     */
    public function testTaxonomyTermRdfaAttributes() {
        $term = $this->createTerm($this->vocabulary);
        $term_uri = $term->toUrl('canonical', [
            'absolute' => TRUE,
        ])
            ->toString();
        $this->drupalGet('taxonomy/term/' . $term->id());
        $this->drupalGet($term->toUrl());
        // Inspects RDF graph output.
        // Term type.
        $expected_value = [
            'type' => 'uri',
            'value' => 'http://www.w3.org/2004/02/skos/core#Concept',
        ];
        $this->assertTrue($this->hasRdfProperty($this->getSession()
            ->getPage()
            ->getContent(), $this->baseUri, $term_uri, 'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', $expected_value), 'Term type found in RDF output (skos:Concept).');
        // Term label.
        $expected_value = [
            'type' => 'literal',
            'value' => $term->getName(),
            'lang' => 'en',
        ];
        $this->assertTrue($this->hasRdfProperty($this->getSession()
            ->getPage()
            ->getContent(), $this->baseUri, $term_uri, 'http://www.w3.org/2000/01/rdf-schema#label', $expected_value), 'Term label found in RDF output (rdfs:label).');
        // Term label.
        $expected_value = [
            'type' => 'literal',
            'value' => $term->getName(),
            'lang' => 'en',
        ];
        $this->assertTrue($this->hasRdfProperty($this->getSession()
            ->getPage()
            ->getContent(), $this->baseUri, $term_uri, 'http://www.w3.org/2004/02/skos/core#prefLabel', $expected_value), 'Term label found in RDF output (skos:prefLabel).');
        // @todo Add test for term description once it is a field:
        //   https://www.drupal.org/node/569434.
    }

}