HtmlTagUnitTest.php

<?php

/**
 * @file
 * Definition of Drupal\system\Tests\Theme\HtmlTagUnitTest.
 */
namespace Drupal\system\Tests\Theme;

use Drupal\simpletest\UnitTestBase;

/**
 * Unit tests for theme_html_tag().
 */
class HtmlTagUnitTest extends UnitTestBase {
  public static function getInfo() {
    return array(
      'name' => 'Theme HTML Tag',
      'description' => 'Tests theme_html_tag() built-in theme functions.',
      'group' => 'Theme',
    );
  }

  /**
   * Test function theme_html_tag()
   */
  function testThemeHtmlTag() {

    // Test auto-closure meta tag generation
    $tag['element'] = array(
      '#tag' => 'meta',
      '#attributes' => array(
        'name' => 'description',
        'content' => 'Drupal test',
      ),
    );
    $this
      ->assertEqual('<meta name="description" content="Drupal test" />' . "\n", theme_html_tag($tag), 'Test auto-closure meta tag generation.');

    // Test title tag generation
    $tag['element'] = array(
      '#tag' => 'title',
      '#value' => 'title test',
    );
    $this
      ->assertEqual('<title>title test</title>' . "\n", theme_html_tag($tag), 'Test title tag generation.');
  }

}