Chris@0: <?php
Chris@0: 
Chris@0: namespace Drupal\system\Tests\Module;
Chris@0: 
Chris@0: /**
Chris@0:  * Attempt disabling of required modules.
Chris@0:  *
Chris@0:  * @group Module
Chris@0:  */
Chris@0: class RequiredTest extends ModuleTestBase {
Chris@0:   /**
Chris@0:    * Assert that core required modules cannot be disabled.
Chris@0:    */
Chris@0:   public function testDisableRequired() {
Chris@0:     $module_info = system_get_info('module');
Chris@0:     $this->drupalGet('admin/modules');
Chris@0:     foreach ($module_info as $module => $info) {
Chris@0:       // Check to make sure the checkbox for each required module is disabled
Chris@0:       // and checked (or absent from the page if the module is also hidden).
Chris@0:       if (!empty($info['required'])) {
Chris@0:         $field_name = 'modules[' . $module . '][enable]';
Chris@0:         if (empty($info['hidden'])) {
Chris@0:           $this->assertFieldByXPath("//input[@name='$field_name' and @disabled='disabled' and @checked='checked']", '', format_string('Field @name was disabled and checked.', ['@name' => $field_name]));
Chris@0:         }
Chris@0:         else {
Chris@0:           $this->assertNoFieldByName($field_name);
Chris@0:         }
Chris@0:       }
Chris@0:     }
Chris@0:   }
Chris@0: 
Chris@0: }