class EntityReferenceRdfaTest

class EntityReferenceRdfaTest extends FieldRdfaTestBase {
  use EntityReferenceTestTrait;
  
  /**
   * {@inheritdoc}
   */
  protected $fieldType = 'entity_reference';
  
  /**
   * The entity type used in this test.
   *
   * @var string
   */
  protected $entityType = 'entity_test';
  
  /**
   * The bundle used in this test.
   *
   * @var string
   */
  protected $bundle = 'entity_test';
  
  /**
   * The term for testing.
   *
   * @var \Drupal\taxonomy\Entity\Term
   */
  protected $targetEntity;
  
  /**
   * {@inheritdoc}
   */
  protected static $modules = [
    'text',
    'filter',
  ];
  
  /**
   * {@inheritdoc}
   */
  protected function setUp() : void {
    parent::setUp();
    $this->installEntitySchema('entity_test_rev');
    // Give anonymous users permission to view test entities.
    $this->installConfig([
      'user',
    ]);
    Role::load(RoleInterface::ANONYMOUS_ID)->grantPermission('view test entity')
      ->save();
    $this->createEntityReferenceField($this->entityType, $this->bundle, $this->fieldName, 'Field test', $this->entityType);
    // Add the mapping.
    $mapping = rdf_get_mapping('entity_test', 'entity_test');
    $mapping->setFieldMapping($this->fieldName, [
      'properties' => [
        'schema:knows',
      ],
    ])
      ->save();
    // Create the entity to be referenced.
    $this->targetEntity = $this->container
      ->get('entity_type.manager')
      ->getStorage($this->entityType)
      ->create([
      'name' => $this->randomMachineName(),
    ]);
    $this->targetEntity
      ->save();
    // Create the entity that will have the entity reference field.
    $this->entity = $this->container
      ->get('entity_type.manager')
      ->getStorage($this->entityType)
      ->create([
      'name' => $this->randomMachineName(),
    ]);
    $this->entity
      ->save();
    $this->entity->{$this->fieldName}->entity = $this->targetEntity;
    $this->uri = $this->getAbsoluteUri($this->entity);
  }
  
  /**
   * Tests all the entity reference formatters.
   */
  public function testAllFormatters() {
    $entity_uri = $this->getAbsoluteUri($this->targetEntity);
    // Tests the label formatter.
    $this->assertFormatterRdfa([
      'type' => 'entity_reference_label',
    ], 'http://schema.org/knows', [
      'value' => $entity_uri,
      'type' => 'uri',
    ]);
    // Tests the entity formatter.
    $this->assertFormatterRdfa([
      'type' => 'entity_reference_entity_view',
    ], 'http://schema.org/knows', [
      'value' => $entity_uri,
      'type' => 'uri',
    ]);
  }

}