drupalLogin($this->adminUser); // Create an image media type for testing the formatter. $this->createMediaType('image', ['id' => 'image']); // Create an article content type. $this->drupalCreateContentType([ 'type' => 'article', 'name' => 'Article', ]); // Creates an entity reference field for media. $field_storage = FieldStorageConfig::create([ 'field_name' => 'field_media_reference', 'type' => 'entity_reference', 'entity_type' => 'node', 'cardinality' => 1, 'settings' => [ 'target_type' => 'media', ], ]); $field_storage->save(); FieldConfig::create([ 'field_storage' => $field_storage, 'bundle' => 'article', 'label' => 'Reference media', 'translatable' => FALSE, ])->save(); // Alter the form display. $this->container->get('entity_display.repository') ->getFormDisplay('node', 'article') ->setComponent('field_media_reference', [ 'type' => 'entity_reference_autocomplete', ]) ->save(); // Change the image thumbnail to point into the media. $this->changeMediaReferenceFieldLinkType('media'); // Create and upload a file to the media. $file = File::create([ 'uri' => current($this->getTestFiles('image'))->uri, ]); $file->save(); $mediaImage = Media::create([ 'bundle' => 'image', 'name' => 'Test image', 'field_media_image' => $file->id(), ]); $mediaImage->save(); // Save the article node. $title = $this->randomMachineName(); $edit = [ 'title[0][value]' => $title, ]; $edit['field_media_reference[0][target_id]'] = $mediaImage->getName(); $this->drupalGet('node/add/article'); $this->submitForm($edit, 'Save'); // Validate the image being loaded with the media reference. $this->assertSession()->responseContains('toUrl()->toString()); $this->assertSession()->responseContains('loading="eager"'); } /** * Helper function to change field display. * * @param string $type * Image link type. */ private function changeMediaReferenceFieldLinkType(string $type): void { // Change the display to use the media thumbnail formatter with image link. $this->container->get('entity_display.repository') ->getViewDisplay('node', 'article', 'default') ->setComponent('field_media_reference', [ 'type' => 'media_thumbnail', 'settings' => [ 'image_link' => $type, 'image_style' => '', 'image_loading' => ['attribute' => 'eager'], ], ]) ->save(); } }