BinaryFileResponseTest.php

<?php

declare (strict_types=1);
namespace Drupal\KernelTests\Core\Http;

use Drupal\KernelTests\KernelTestBase;
use Symfony\Component\HttpFoundation\Request;

/**
 * Tests the headers added by BinaryFileResponse.
 *
 * @group Http
 */
class BinaryFileResponseTest extends KernelTestBase {
  
  /**
   * {@inheritdoc}
   */
  protected static $modules = [
    'binary_file_response_test',
  ];
  
  /**
   * Test the content type generated by Drupal is correct.
   *
   * @dataProvider providerTestCalculatedContentType
   */
  public function testCalculatedContentType($path, $content_type) : void {
    $query = [
      'relative_file_url' => $path,
    ];
    $request = Request::create('/binary_file_response_test/download', 'GET', $query);
    $response = \Drupal::service('http_kernel')->handle($request);
    $response->prepare($request);
    $this->assertSame($content_type, current(explode(';', $response->headers
      ->get('Content-Type'))));
  }
  
  /**
   * Data provider of file names and expected content-type values.
   */
  public static function providerTestCalculatedContentType() : array {
    return [
      [
        'core/misc/print.css',
        'text/css',
      ],
      [
        'core/misc/checkbox.js',
        'text/javascript',
      ],
      [
        'core/misc/tree.png',
        'image/png',
      ],
    ];
  }

}