2 merge requests!7452Issue #1797438. HTML5 validation is preventing form submit and not fully...,!789Issue #3210310: Adjust Database API to remove deprecated Drupal 9 code in Drupal 10
// Check if we got the rendered output of our template file.
$this->assertTrue(strpos(\Drupal::service('renderer')->renderRoot($output),'This module defines its own display template.')!==FALSE,'Display plugin DisplayTemplateTest defines its own template.');