Issue #3403491 by Kingdutch, ankithashetty, BramDriesen, longwave, Berdir,...

<?php

namespace Drupal\Tests\field\Traits;

@trigger_error('The ' . __NAMESPACE__ . '\EntityReferenceTestTrait is deprecated in drupal:10.2.0 and is removed from drupal:11.0.0. Instead, use \Drupal\Tests\field\Traits\EntityReferenceFieldCreationTrait. See https://www.drupal.org/node/3401941', E_USER_DEPRECATED);

/**

 * Provides common functionality for the EntityReference test classes.

 *

 * @deprecated in drupal:10.2.0 and is removed from drupal:11.0.0. Use

 *    \Drupal\Tests\field\Traits\EntityReferenceFieldCreationTrait instead.

 *

 * @see https://www.drupal.org/node/3401941

 */

trait EntityReferenceTestTrait {

  use EntityReferenceFieldCreationTrait;

}