TwigFilterTest.php

<?php

namespace Drupal\Tests\system\Kernel\Theme;

use Drupal\KernelTests\KernelTestBase;

/**
 * Tests Drupal's Twig filters.
 *
 * @group Theme
 */
class TwigFilterTest extends KernelTestBase {
    
    /**
     * Modules to enable.
     *
     * @var array
     */
    protected static $modules = [
        'twig_theme_test',
    ];
    
    /**
     * Tests Twig "without" filter.
     */
    public function testTwigWithoutFilter() {
        $filter_test = [
            '#theme' => 'twig_theme_test_filter',
            '#quote' => [
                'content' => [
                    '#markup' => 'You can only find truth with logic if you have already found truth without it.',
                ],
                'author' => [
                    '#markup' => 'Gilbert Keith Chesterton',
                ],
                'date' => [
                    '#markup' => '1874-1936',
                ],
            ],
            '#attributes' => [
                'id' => 'quotes',
                'checked' => TRUE,
                'class' => [
                    'red',
                    'green',
                    'blue',
                ],
            ],
        ];
        $rendered = \Drupal::service('renderer')->renderRoot($filter_test);
        $this->setRawContent($rendered);
        $elements = [
            [
                'expected' => '<div><strong>No author:</strong> You can only find truth with logic if you have already found truth without it.1874-1936.</div>',
                'message' => '"No author" was successfully rendered.',
            ],
            [
                'expected' => '<div><strong>Complete quote after without:</strong> You can only find truth with logic if you have already found truth without it.Gilbert Keith Chesterton1874-1936.</div>',
                'message' => '"Complete quote after without" was successfully rendered.',
            ],
            [
                'expected' => '<div><strong>Only author:</strong> Gilbert Keith Chesterton.</div>',
                'message' => '"Only author:" was successfully rendered.',
            ],
            [
                'expected' => '<div><strong>No author or date:</strong> You can only find truth with logic if you have already found truth without it..</div>',
                'message' => '"No author or date" was successfully rendered.',
            ],
            [
                'expected' => '<div><strong>Only date:</strong> 1874-1936.</div>',
                'message' => '"Only date" was successfully rendered.',
            ],
            [
                'expected' => '<div><strong>Complete quote again for good measure:</strong> You can only find truth with logic if you have already found truth without it.Gilbert Keith Chesterton1874-1936.</div>',
                'message' => '"Complete quote again for good measure" was successfully rendered.',
            ],
            [
                'expected' => '<div><strong>Marked-up:</strong>
  <blockquote>
    <p>You can only find truth with logic if you have already found truth without it.</p>
    <footer>
      &ndash; <cite><a href="#">Gilbert Keith Chesterton</a> <em>(1874-1936)</em></cite>
    </footer>
  </blockquote>',
                'message' => '"Marked-up quote" was successfully rendered.',
            ],
            [
                'expected' => '<div><span id="quotes" checked class="red green blue">All attributes:</span></div>',
                'message' => 'All attributes printed.',
            ],
            [
                'expected' => '<div><span class="red green blue" id="quotes" checked>Class attributes in front, remainder at the back:</span></div>',
                'message' => 'Class attributes printed in the front, the rest in the back.',
            ],
            [
                'expected' => '<div><span id="quotes" checked data-class="red green blue">Class attributes in back, remainder at the front:</span></div>',
                'message' => 'Class attributes printed in the back, the rest in the front.',
            ],
            [
                'expected' => '<div><span class="red green blue">Class attributes only:</span></div>',
                'message' => 'Class attributes only printed.',
            ],
            [
                'expected' => '<div><span checked id="quotes" class="red green blue">Without boolean attribute.</span></div>',
                'message' => 'Boolean attribute printed in the front.',
            ],
            [
                'expected' => '<div><span data-id="quotes" checked class="red green blue">Without string attribute.</span></div>',
                'message' => 'Without string attribute in the front.',
            ],
            [
                'expected' => '<div><span checked>Without id and class attributes.</span></div>',
                'message' => 'Attributes printed without id and class attributes.',
            ],
            [
                'expected' => '<div><span checked>Without id and class attributes via an array.</span></div>',
                'message' => 'Attributes printed without an array of things (id and class).',
            ],
            [
                'expected' => '<div><span>Without any attributes via mixed array and string.</span></div>',
                'message' => 'Attributes printed without an array of keys then a string key.',
            ],
            [
                'expected' => '<div><span>Without any attributes via mixed string then array.</span></div>',
                'message' => 'Attributes printed without a string key then an array of keys.',
            ],
            [
                'expected' => '<div><span>Without any attributes with duplicate "id" key.</span></div>',
                'message' => 'Attributes printed without two arrays of keys with a duplicate key present in both arrays.',
            ],
            [
                'expected' => '<div><span id="quotes" checked class="red green blue">All attributes again.</span></div>',
                'message' => 'All attributes printed again.',
            ],
            [
                'expected' => '<div id="quotes-here"><span class="gray-like-a-bunny bem__ized--top-feature" id="quotes-here">ID and class. Having the same ID twice is not valid markup but we want to make sure the filter doesn\'t use \\Drupal\\Component\\Utility\\Html::getUniqueId().</span></div>',
                'message' => 'Class and ID filtered.',
            ],
            [
                'expected' => '<div><strong>Rendered author string length:</strong> 24.</div>',
                'message' => 'Render filter string\'s length.',
            ],
        ];
        foreach ($elements as $element) {
            $this->assertRaw($element['expected'], $element['message']);
        }
    }

}