trait TaxonomyTranslationTestTrait in Drupal 8

trait TaxonomyTranslationTestTrait {
  use EntityReferenceTestTrait;

  /**
   * The vocabulary.
   *
   * @var \Drupal\taxonomy\Entity\Vocabulary
   */
  protected $vocabulary;

  /**
   * The field name for our taxonomy term field.
   *
   * @var string
   */
  protected $termFieldName = 'field_tag';

  /**
   * The langcode of the source language.
   *
   * @var string
   */
  protected $baseLangcode = 'en';

  /**
   * Target langcode for translation.
   *
   * @var string
   */
  protected $translateToLangcode = 'hu';

  /**
   * The node to check the translated value on.
   *
   * @var \Drupal\node\Entity\Node
   */
  protected $node;

  /**
   * Adds additional languages.
   */
  protected function setupLanguages() {
    ConfigurableLanguage::createFromLangcode($this->translateToLangcode)
      ->save();
    $this
      ->rebuildContainer();
  }

  /**
   * Enables translations where it needed.
   */
  protected function enableTranslation() {

    // Enable translation for the current entity type and ensure the change is
    // picked up.
    \Drupal::service('content_translation.manager')
      ->setEnabled('node', 'article', TRUE);
    \Drupal::service('content_translation.manager')
      ->setEnabled('taxonomy_term', $this->vocabulary
      ->id(), TRUE);
  }

  /**
   * Adds term reference field for the article content type.
   */
  protected function setUpTermReferenceField() {
    $handler_settings = [
      'target_bundles' => [
        $this->vocabulary
          ->id() => $this->vocabulary
          ->id(),
      ],
      'auto_create' => TRUE,
    ];
    $this
      ->createEntityReferenceField('node', 'article', $this->termFieldName, NULL, 'taxonomy_term', 'default', $handler_settings, FieldStorageDefinitionInterface::CARDINALITY_UNLIMITED);
    $field_storage = FieldStorageConfig::loadByName('node', $this->termFieldName);
    $field_storage
      ->setTranslatable(FALSE);
    $field_storage
      ->save();

    /** @var \Drupal\Core\Entity\EntityDisplayRepositoryInterface $display_repository */
    $display_repository = \Drupal::service('entity_display.repository');
    $display_repository
      ->getFormDisplay('node', 'article')
      ->setComponent($this->termFieldName, [
      'type' => 'entity_reference_autocomplete_tags',
    ])
      ->save();
    $display_repository
      ->getViewDisplay('node', 'article')
      ->setComponent($this->termFieldName, [
      'type' => 'entity_reference_label',
    ])
      ->save();
  }

}