function EntityReferenceFormatterTest::testEntityReferenceRecursiveProtectionWithManyRenderedEntities

Renders the same entity referenced from different places.

File

core/modules/field/tests/src/Kernel/EntityReference/EntityReferenceFormatterTest.php, line 303

Class

EntityReferenceFormatterTest

Tests the formatters functionality.

Namespace

Code

public function testEntityReferenceRecursiveProtectionWithManyRenderedEntities() : void {
  $formatter = 'entity_reference_entity_view';
  $view_builder = $this->entityTypeManager
    ->getViewBuilder($this->entityType);
  // Set the default view mode to use the 'entity_reference_entity_view'
  // formatter.
  \Drupal::service('entity_display.repository')->getViewDisplay($this->entityType, $this->bundle)
    ->setComponent($this->fieldName, [
    'type' => $formatter,
  ])
    ->save();
  $storage = $this->entityTypeManager
    ->getStorage($this->entityType);
  /** @var \Drupal\Core\Entity\ContentEntityInterface $referenced_entity */
  $referenced_entity = $storage->create([
    'name' => $this->randomMachineName(),
  ]);
  $range = range(0, 30);
  $referencing_entities = array_map(function () use ($storage, $referenced_entity) {
    $referencing_entity = $storage->create([
      'name' => $this->randomMachineName(),
      $this->fieldName => $referenced_entity,
    ]);
    $referencing_entity->save();
    return $referencing_entity;
  }, $range);
  $build = $view_builder->viewMultiple($referencing_entities, 'default');
  $output = $this->render($build);
  // The title of entity_test entities is printed twice by default, so we have
  // to multiply the formatter's recursive rendering protection limit by 2.
  // Additionally, we have to take into account 2 additional occurrences of
  // the entity title because we're rendering the full entity, not just the
  // reference field.
  $expected_occurrences = 30 * 2 + 2;
  $actual_occurrences = substr_count($output, $referenced_entity->get('name')->value);
  $this->assertEquals($expected_occurrences, $actual_occurrences);
}