EntityReferenceFormatterTest.php in Drupal 8

Namespace

Drupal\Tests\field\Kernel\EntityReference

File

core/modules/field/tests/src/Kernel/EntityReference/EntityReferenceFormatterTest.php

<?php

namespace Drupal\Tests\field\Kernel\EntityReference;

use Drupal\Component\Render\FormattableMarkup;
use Drupal\Core\Cache\Cache;
use Drupal\Core\Cache\CacheableMetadata;
use Drupal\Core\Field\FieldStorageDefinitionInterface;
use Drupal\Core\Field\Plugin\Field\FieldFormatter\EntityReferenceEntityFormatter;
use Drupal\field\Entity\FieldConfig;
use Drupal\field\Entity\FieldStorageConfig;
use Drupal\filter\Entity\FilterFormat;
use Drupal\KernelTests\Core\Entity\EntityKernelTestBase;
use Drupal\user\Entity\Role;
use Drupal\user\RoleInterface;
use Drupal\entity_test\Entity\EntityTestLabel;
use Drupal\Tests\field\Traits\EntityReferenceTestTrait;

/**
 * Tests the formatters functionality.
 *
 * @group entity_reference
 */
class EntityReferenceFormatterTest extends EntityKernelTestBase {
  use EntityReferenceTestTrait;

  /**
   * 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 name of the field used in this test.
   *
   * @var string
   */
  protected $fieldName = 'field_test';

  /**
   * The entity to be referenced in this test.
   *
   * @var \Drupal\Core\Entity\EntityInterface
   */
  protected $referencedEntity;

  /**
   * The entity that is not yet saved to its persistent storage to be referenced
   * in this test.
   *
   * @var \Drupal\Core\Entity\EntityInterface
   */
  protected $unsavedReferencedEntity;
  protected function setUp() {
    parent::setUp();

    // Use Classy theme for testing markup output.
    \Drupal::service('theme_installer')
      ->install([
      'classy',
    ]);
    $this
      ->config('system.theme')
      ->set('default', 'classy')
      ->save();
    $this
      ->installEntitySchema('entity_test');

    // Grant the 'view test entity' permission.
    $this
      ->installConfig([
      'user',
    ]);
    Role::load(RoleInterface::ANONYMOUS_ID)
      ->grantPermission('view test entity')
      ->save();

    // The label formatter rendering generates links, so build the router.
    $this->container
      ->get('router.builder')
      ->rebuild();
    $this
      ->createEntityReferenceField($this->entityType, $this->bundle, $this->fieldName, 'Field test', $this->entityType, 'default', [], FieldStorageDefinitionInterface::CARDINALITY_UNLIMITED);

    // Set up a field, so that the entity that'll be referenced bubbles up a
    // cache tag when rendering it entirely.
    FieldStorageConfig::create([
      'field_name' => 'body',
      'entity_type' => $this->entityType,
      'type' => 'text',
      'settings' => [],
    ])
      ->save();
    FieldConfig::create([
      'entity_type' => $this->entityType,
      'bundle' => $this->bundle,
      'field_name' => 'body',
      'label' => 'Body',
    ])
      ->save();
    \Drupal::service('entity_display.repository')
      ->getViewDisplay($this->entityType, $this->bundle)
      ->setComponent('body', [
      'type' => 'text_default',
      'settings' => [],
    ])
      ->save();
    FilterFormat::create([
      'format' => 'full_html',
      'name' => 'Full HTML',
    ])
      ->save();

    // Create the entity to be referenced.
    $this->referencedEntity = $this->container
      ->get('entity_type.manager')
      ->getStorage($this->entityType)
      ->create([
      'name' => $this
        ->randomMachineName(),
    ]);
    $this->referencedEntity->body = [
      'value' => '<p>Hello, world!</p>',
      'format' => 'full_html',
    ];
    $this->referencedEntity
      ->save();

    // Create another entity to be referenced but do not save it.
    $this->unsavedReferencedEntity = $this->container
      ->get('entity_type.manager')
      ->getStorage($this->entityType)
      ->create([
      'name' => $this
        ->randomMachineName(),
    ]);
    $this->unsavedReferencedEntity->body = [
      'value' => '<p>Hello, unsaved world!</p>',
      'format' => 'full_html',
    ];
  }

  /**
   * Assert inaccessible items don't change the data of the fields.
   */
  public function testAccess() {

    // Revoke the 'view test entity' permission for this test.
    Role::load(RoleInterface::ANONYMOUS_ID)
      ->revokePermission('view test entity')
      ->save();
    $field_name = $this->fieldName;
    $referencing_entity = $this->container
      ->get('entity_type.manager')
      ->getStorage($this->entityType)
      ->create([
      'name' => $this
        ->randomMachineName(),
    ]);
    $referencing_entity
      ->save();
    $referencing_entity->{$field_name}->entity = $this->referencedEntity;

    // Assert user doesn't have access to the entity.
    $this
      ->assertFalse($this->referencedEntity
      ->access('view'), 'Current user does not have access to view the referenced entity.');
    $formatter_manager = $this->container
      ->get('plugin.manager.field.formatter');

    // Get all the existing formatters.
    foreach ($formatter_manager
      ->getOptions('entity_reference') as $formatter => $name) {

      // Set formatter type for the 'full' view mode.
      \Drupal::service('entity_display.repository')
        ->getViewDisplay($this->entityType, $this->bundle)
        ->setComponent($field_name, [
        'type' => $formatter,
      ])
        ->save();

      // Invoke entity view.
      \Drupal::entityTypeManager()
        ->getViewBuilder($referencing_entity
        ->getEntityTypeId())
        ->view($referencing_entity, 'default');

      // Verify the un-accessible item still exists.
      $this
        ->assertEqual($referencing_entity->{$field_name}->target_id, $this->referencedEntity
        ->id(), new FormattableMarkup('The un-accessible item still exists after @name formatter was executed.', [
        '@name' => $name,
      ]));
    }
  }

  /**
   * Tests the merging of cache metadata.
   */
  public function testCustomCacheTagFormatter() {

    /** @var \Drupal\Core\Render\RendererInterface $renderer */
    $renderer = $this->container
      ->get('renderer');
    $formatter = 'entity_reference_custom_cache_tag';
    $build = $this
      ->buildRenderArray([
      $this->referencedEntity,
    ], $formatter);
    $renderer
      ->renderRoot($build);
    $this
      ->assertContains('custom_cache_tag', $build['#cache']['tags']);
  }

  /**
   * Tests the ID formatter.
   */
  public function testIdFormatter() {
    $formatter = 'entity_reference_entity_id';
    $build = $this
      ->buildRenderArray([
      $this->referencedEntity,
      $this->unsavedReferencedEntity,
    ], $formatter);
    $this
      ->assertEqual($build[0]['#plain_text'], $this->referencedEntity
      ->id(), sprintf('The markup returned by the %s formatter is correct for an item with a saved entity.', $formatter));
    $this
      ->assertEqual($build[0]['#cache']['tags'], $this->referencedEntity
      ->getCacheTags(), sprintf('The %s formatter has the expected cache tags.', $formatter));
    $this
      ->assertTrue(!isset($build[1]), sprintf('The markup returned by the %s formatter is correct for an item with a unsaved entity.', $formatter));
  }

  /**
   * Tests the entity formatter.
   */
  public function testEntityFormatter() {

    /** @var \Drupal\Core\Render\RendererInterface $renderer */
    $renderer = $this->container
      ->get('renderer');
    $formatter = 'entity_reference_entity_view';
    $build = $this
      ->buildRenderArray([
      $this->referencedEntity,
      $this->unsavedReferencedEntity,
    ], $formatter);

    // Test the first field item.
    $expected_rendered_name_field_1 = '
            <div class="field field--name-name field--type-string field--label-hidden field__item">' . $this->referencedEntity
      ->label() . '</div>
      ';
    $expected_rendered_body_field_1 = '
  <div class="clearfix text-formatted field field--name-body field--type-text field--label-above">
    <div class="field__label">Body</div>
              <div class="field__item"><p>Hello, world!</p></div>
          </div>
';
    $renderer
      ->renderRoot($build[0]);
    $this
      ->assertEqual($build[0]['#markup'], 'default | ' . $this->referencedEntity
      ->label() . $expected_rendered_name_field_1 . $expected_rendered_body_field_1, sprintf('The markup returned by the %s formatter is correct for an item with a saved entity.', $formatter));
    $expected_cache_tags = Cache::mergeTags(\Drupal::entityTypeManager()
      ->getViewBuilder($this->entityType)
      ->getCacheTags(), $this->referencedEntity
      ->getCacheTags());
    $expected_cache_tags = Cache::mergeTags($expected_cache_tags, FilterFormat::load('full_html')
      ->getCacheTags());
    $this
      ->assertEqual($build[0]['#cache']['tags'], $expected_cache_tags, new FormattableMarkup('The @formatter formatter has the expected cache tags.', [
      '@formatter' => $formatter,
    ]));

    // Test the second field item.
    $expected_rendered_name_field_2 = '
            <div class="field field--name-name field--type-string field--label-hidden field__item">' . $this->unsavedReferencedEntity
      ->label() . '</div>
      ';
    $expected_rendered_body_field_2 = '
  <div class="clearfix text-formatted field field--name-body field--type-text field--label-above">
    <div class="field__label">Body</div>
              <div class="field__item"><p>Hello, unsaved world!</p></div>
          </div>
';
    $renderer
      ->renderRoot($build[1]);
    $this
      ->assertEqual($build[1]['#markup'], 'default | ' . $this->unsavedReferencedEntity
      ->label() . $expected_rendered_name_field_2 . $expected_rendered_body_field_2, sprintf('The markup returned by the %s formatter is correct for an item with a unsaved entity.', $formatter));
  }

  /**
   * Tests the recursive rendering protection of the entity formatter.
   */
  public function testEntityFormatterRecursiveRendering() {

    /** @var \Drupal\Core\Render\RendererInterface $renderer */
    $renderer = $this->container
      ->get('renderer');
    $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();
    $storage = \Drupal::entityTypeManager()
      ->getStorage($this->entityType);
    $referencing_entity_1 = $storage
      ->create([
      'name' => $this
        ->randomMachineName(),
    ]);
    $referencing_entity_1
      ->save();

    // Create a self-reference.
    $referencing_entity_1->{$this->fieldName}->entity = $referencing_entity_1;
    $referencing_entity_1
      ->save();

    // Check that the recursive rendering stops after it reaches the specified
    // limit.
    $build = $view_builder
      ->view($referencing_entity_1, 'default');
    $output = $renderer
      ->renderRoot($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 = EntityReferenceEntityFormatter::RECURSIVE_RENDER_LIMIT * 2 + 2;
    $actual_occurrences = substr_count($output, $referencing_entity_1->name->value);
    $this
      ->assertEqual($actual_occurrences, $expected_occurrences);

    // Repeat the process with another entity in order to check that the
    // 'recursive_render_id' counter is generated properly.
    $referencing_entity_2 = $storage
      ->create([
      'name' => $this
        ->randomMachineName(),
    ]);
    $referencing_entity_2
      ->save();
    $referencing_entity_2->{$this->fieldName}->entity = $referencing_entity_2;
    $referencing_entity_2
      ->save();
    $build = $view_builder
      ->view($referencing_entity_2, 'default');
    $output = $renderer
      ->renderRoot($build);
    $actual_occurrences = substr_count($output, $referencing_entity_2->name->value);
    $this
      ->assertEqual($actual_occurrences, $expected_occurrences);

    // Now render both entities at the same time and check again.
    $build = $view_builder
      ->viewMultiple([
      $referencing_entity_1,
      $referencing_entity_2,
    ], 'default');
    $output = $renderer
      ->renderRoot($build);
    $actual_occurrences = substr_count($output, $referencing_entity_1->name->value);
    $this
      ->assertEqual($actual_occurrences, $expected_occurrences);
    $actual_occurrences = substr_count($output, $referencing_entity_2->name->value);
    $this
      ->assertEqual($actual_occurrences, $expected_occurrences);
  }

  /**
   * Renders the same entity referenced from different places.
   */
  public function testEntityReferenceRecursiveProtectionWithManyRenderedEntities() {
    $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);
  }

  /**
   * Tests the label formatter.
   */
  public function testLabelFormatter() {
    $this
      ->installEntitySchema('entity_test_label');

    /** @var \Drupal\Core\Render\RendererInterface $renderer */
    $renderer = $this->container
      ->get('renderer');
    $formatter = 'entity_reference_label';

    // The 'link' settings is TRUE by default.
    $build = $this
      ->buildRenderArray([
      $this->referencedEntity,
      $this->unsavedReferencedEntity,
    ], $formatter);
    $expected_field_cacheability = [
      'contexts' => [],
      'tags' => [],
      'max-age' => Cache::PERMANENT,
    ];
    $this
      ->assertEqual($build['#cache'], $expected_field_cacheability, 'The field render array contains the entity access cacheability metadata');
    $expected_item_1 = [
      '#type' => 'link',
      '#title' => $this->referencedEntity
        ->label(),
      '#url' => $this->referencedEntity
        ->toUrl(),
      '#options' => $this->referencedEntity
        ->toUrl()
        ->getOptions(),
      '#cache' => [
        'contexts' => [
          'user.permissions',
        ],
        'tags' => $this->referencedEntity
          ->getCacheTags(),
      ],
    ];
    $this
      ->assertEqual($renderer
      ->renderRoot($build[0]), $renderer
      ->renderRoot($expected_item_1), sprintf('The markup returned by the %s formatter is correct for an item with a saved entity.', $formatter));
    $this
      ->assertEqual(CacheableMetadata::createFromRenderArray($build[0]), CacheableMetadata::createFromRenderArray($expected_item_1));

    // The second referenced entity is "autocreated", therefore not saved and
    // lacking any URL info.
    $expected_item_2 = [
      '#plain_text' => $this->unsavedReferencedEntity
        ->label(),
      '#cache' => [
        'contexts' => [
          'user.permissions',
        ],
        'tags' => $this->unsavedReferencedEntity
          ->getCacheTags(),
        'max-age' => Cache::PERMANENT,
      ],
    ];
    $this
      ->assertEqual($build[1], $expected_item_2, sprintf('The render array returned by the %s formatter is correct for an item with a unsaved entity.', $formatter));

    // Test with the 'link' setting set to FALSE.
    $build = $this
      ->buildRenderArray([
      $this->referencedEntity,
      $this->unsavedReferencedEntity,
    ], $formatter, [
      'link' => FALSE,
    ]);
    $this
      ->assertEqual($build[0]['#plain_text'], $this->referencedEntity
      ->label(), sprintf('The markup returned by the %s formatter is correct for an item with a saved entity.', $formatter));
    $this
      ->assertEqual($build[1]['#plain_text'], $this->unsavedReferencedEntity
      ->label(), sprintf('The markup returned by the %s formatter is correct for an item with a unsaved entity.', $formatter));

    // Test an entity type that doesn't have any link templates, which means
    // \Drupal\Core\Entity\EntityInterface::urlInfo() will throw an exception
    // and the label formatter will output only the label instead of a link.
    $field_storage_config = FieldStorageConfig::loadByName($this->entityType, $this->fieldName);
    $field_storage_config
      ->setSetting('target_type', 'entity_test_label');
    $field_storage_config
      ->save();
    $referenced_entity_with_no_link_template = EntityTestLabel::create([
      'name' => $this
        ->randomMachineName(),
    ]);
    $referenced_entity_with_no_link_template
      ->save();
    $build = $this
      ->buildRenderArray([
      $referenced_entity_with_no_link_template,
    ], $formatter, [
      'link' => TRUE,
    ]);
    $this
      ->assertEqual($build[0]['#plain_text'], $referenced_entity_with_no_link_template
      ->label(), sprintf('The markup returned by the %s formatter is correct for an entity type with no valid link template.', $formatter));
  }

  /**
   * Sets field values and returns a render array as built by
   * \Drupal\Core\Field\FieldItemListInterface::view().
   *
   * @param \Drupal\Core\Entity\EntityInterface[] $referenced_entities
   *   An array of entity objects that will be referenced.
   * @param string $formatter
   *   The formatted plugin that will be used for building the render array.
   * @param array $formatter_options
   *   Settings specific to the formatter. Defaults to the formatter's default
   *   settings.
   *
   * @return array
   *   A render array.
   */
  protected function buildRenderArray(array $referenced_entities, $formatter, $formatter_options = []) {

    // Create the entity that will have the entity reference field.
    $referencing_entity = $this->container
      ->get('entity_type.manager')
      ->getStorage($this->entityType)
      ->create([
      'name' => $this
        ->randomMachineName(),
    ]);
    $items = $referencing_entity
      ->get($this->fieldName);

    // Assign the referenced entities.
    foreach ($referenced_entities as $referenced_entity) {
      $items[] = [
        'entity' => $referenced_entity,
      ];
    }

    // Build the renderable array for the field.
    return $items
      ->view([
      'type' => $formatter,
      'settings' => $formatter_options,
    ]);
  }

}

Classes

Name	Description
EntityReferenceFormatterTest	Tests the formatters functionality.