UpdatePathTestJavaScriptTest.php

<?php

namespace Drupal\Tests\system\Functional\UpdateSystem;

use Drupal\Tests\BrowserTestBase;
use Drupal\Tests\UpdatePathTestTrait;

/**
 * Tests the presence of JavaScript at update.php.
 *
 * @group Update
 */
class UpdatePathTestJavaScriptTest extends BrowserTestBase {
    use UpdatePathTestTrait;
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        $this->ensureUpdatesToRun();
    }
    
    /**
     * Tests JavaScript loading at update.php.
     *
     * @see ::doPreUpdateTests
     */
    public function testJavaScriptLoading() {
        $this->runUpdates();
    }
    
    /**
     * {@inheritdoc}
     */
    protected function doSelectionTest() {
        // Ensure that at least one JS script has drupalSettings in there.
        $scripts = $this->xpath('//script');
        $found = FALSE;
        foreach ($scripts as $script) {
            if (!$script->getAttribute('src')) {
                continue;
            }
            // Source is a root-relative URL. Transform it to an absolute URL to allow
            // file_get_contents() to access the file.
            $src = preg_replace('#^' . $GLOBALS['base_path'] . '(.*)#i', $GLOBALS['base_url'] . '/' . '${1}', $script->getAttribute('src'));
            $file_content = file_get_contents($src);
            if (strpos($file_content, 'window.drupalSettings =') !== FALSE) {
                $found = TRUE;
                break;
            }
        }
        $this->assertTrue($found, 'Ensure that the drupalSettingsLoader.js was included in the JS files');
    }

}