TwigLoaderTest.php in Drupal 9

Namespace

Drupal\Tests\system\Functional\Theme

File

core/modules/system/tests/src/Functional/Theme/TwigLoaderTest.php

<?php

namespace Drupal\Tests\system\Functional\Theme;

use Drupal\Tests\BrowserTestBase;

/**
 * Tests adding Twig loaders.
 *
 * @group Theme
 */
class TwigLoaderTest extends BrowserTestBase {

  /**
   * Modules to enable.
   *
   * @var array
   */
  protected static $modules = [
    'twig_loader_test',
  ];

  /**
   * {@inheritdoc}
   */
  protected $defaultTheme = 'stark';

  /**
   * Tests adding an additional twig loader to the loader chain.
   */
  public function testTwigLoaderAddition() {
    $environment = \Drupal::service('twig');
    $template = $environment
      ->loadTemplate('kittens');
    $this
      ->assertEquals('kittens', $template
      ->render([]), 'Passing "kittens" to the custom Twig loader returns "kittens".');
    $template = $environment
      ->loadTemplate('meow');
    $this
      ->assertEquals('cats', $template
      ->render([]), 'Passing something other than "kittens" to the custom Twig loader returns "cats".');
  }

}

Classes

Name	Description
TwigLoaderTest	Tests adding Twig loaders.