RetrieveFileTest.php

<?php

declare (strict_types=1);
namespace Drupal\Tests\system\Functional\System;

use Drupal\Tests\BrowserTestBase;

/**
 * Tests HTTP file fetching and error handling.
 *
 * @group system
 * @group legacy
 */
class RetrieveFileTest extends BrowserTestBase {
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * Invokes system_retrieve_file() in several scenarios.
     */
    public function testFileRetrieving() : void {
        // Test 404 handling by trying to fetch a randomly named file.
        
        /** @var \Drupal\Core\File\FileSystemInterface $file_system */
        $file_system = \Drupal::service('file_system');
        $file_system->mkdir($source_dir = 'public://' . $this->randomMachineName());
        // cSpell:disable-next-line
        $filename = 'Файл для тестирования ' . $this->randomMachineName();
        $url = \Drupal::service('file_url_generator')->generateAbsoluteString($source_dir . '/' . $filename);
        $retrieved_file = system_retrieve_file($url);
        $this->assertFalse($retrieved_file, 'Non-existent file not fetched.');
        // Actually create that file, download it via HTTP and test the returned path.
        file_put_contents($source_dir . '/' . $filename, 'testing');
        $retrieved_file = system_retrieve_file($url);
        // URLs could not contains characters outside the ASCII set so $filename
        // has to be encoded.
        $encoded_filename = rawurlencode($filename);
        $this->assertEquals('public://' . $encoded_filename, $retrieved_file, 'Sane path for downloaded file returned (public:// scheme).');
        $this->assertFileExists($retrieved_file);
        $this->assertEquals(7, filesize($retrieved_file), 'File size of downloaded file is correct (public:// scheme).');
        
        /** @var \Drupal\Core\File\FileSystemInterface $file_system */
        $file_system = \Drupal::service('file_system');
        $file_system->delete($retrieved_file);
        // Test downloading file to a different location.
        $file_system->mkdir($target_dir = 'temporary://' . $this->randomMachineName());
        $retrieved_file = system_retrieve_file($url, $target_dir);
        $this->assertEquals("{$target_dir}/{$encoded_filename}", $retrieved_file, 'Sane path for downloaded file returned (temporary:// scheme).');
        $this->assertFileExists($retrieved_file);
        $this->assertEquals(7, filesize($retrieved_file), 'File size of downloaded file is correct (temporary:// scheme).');
        $file_system->delete($retrieved_file);
        $file_system->deleteRecursive($source_dir);
        $file_system->deleteRecursive($target_dir);
    }

}