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',
            ],
        ];
    }

}