loadAllIncludes example

$search_settings = $this->config('search.settings');
    // Collect some stats.     $remaining = 0;
    $total = 0;
    foreach ($this->entities as $entity) {
      if ($entity->isIndexable() && $status = $entity->getPlugin()->indexStatus()) {
        $remaining += $status['remaining'];
        $total += $status['total'];
      }
    }

    $this->moduleHandler->loadAllIncludes('admin.inc');
    $count = $this->formatPlural($remaining, 'There is 1 item left to index.', 'There are @count items left to index.');
    $done = $total - $remaining;
    // Use floor() to calculate the percentage, so if it is not quite 100%, it     // will show as 99%, to indicate "almost done".     $percentage = $total > 0 ? floor(100 * $done / $total) : 100;
    $percentage .= '%';
    $status = '<p><strong>' . $this->t('%percentage of the site has been indexed.', ['%percentage' => $percentage]) . ' ' . $count . '</strong></p>';
    $form['status'] = [
      '#type' => 'details',
      '#title' => $this->t('Indexing progress'),
      '#open' => TRUE,
      

'type' => 'module',
            'pathname' => 'core/tests/Drupal/Tests/Core/Extension/modules/module_handler_test/module_handler_test.info.yml',
            'filename' => 'module_handler_test.module',
          ],
        ], $this->cacheBackend,
      ])
      ->onlyMethods(['loadInclude'])
      ->getMock();

    // Ensure we reset implementations when settings a new modules list.     $module_handler->expects($this->once())->method('loadInclude');
    $module_handler->loadAllIncludes('hook');
  }

  /** * @covers ::loadInclude * * Note we load code, so isolate the test. * * @runInSeparateProcess * @preserveGlobalState disabled */
  public function testLoadInclude() {