BlockHtmlIdTest.php

<?php

/**
 * @file
 * Definition of Drupal\block\Tests\BlockHtmlIdTest.
 */
namespace Drupal\block\Tests;

use Drupal\simpletest\WebTestBase;

/**
 * Tests block HTML ID validity.
 */
class BlockHtmlIdTest extends WebTestBase {

  /**
   * Modules to enable.
   *
   * @var array
   */
  public static $modules = array(
    'block',
    'block_test',
  );
  public static function getInfo() {
    return array(
      'name' => 'Block HTML ID',
      'description' => 'Tests block HTML ID validity.',
      'group' => 'Block',
    );
  }
  function setUp() {
    parent::setUp();
    $this
      ->drupalLogin($this->root_user);

    // Make sure the block has some content so it will appear.
    $current_content = $this
      ->randomName();
    \Drupal::state()
      ->set('block_test.content', $current_content);

    // Enable our test blocks.
    $this
      ->drupalPlaceBlock('system_menu_block:menu-tools');
    $this
      ->drupalPlaceBlock('test_html_id', array(
      'machine_name' => 'test_id_block',
    ));
  }

  /**
   * Tests for a valid HTML ID for a block.
   */
  function testHtmlId() {
    $this
      ->drupalGet('');
    $this
      ->assertRaw('id="block-test-id-block"', 'HTML ID for test block is valid.');
    $elements = $this
      ->xpath('//div[contains(@class, :div-class)]/div/ul[contains(@class, :ul-class)]/li', array(
      ':div-class' => 'block-system',
      ':ul-class' => 'menu',
    ));
    $this
      ->assertTrue(!empty($elements), 'The proper block markup was found.');
  }

}