setAutoEtag example

$file = new File((string) $file);
            }
        }

        if (!$file->isReadable()) {
            throw new FileException('File must be readable.');
        }

        $this->file = $file;

        if ($autoEtag) {
            $this->setAutoEtag();
        }

        if ($autoLastModified) {
            $this->setAutoLastModified();
        }

        if ($contentDisposition) {
            $this->setContentDisposition($contentDisposition);
        }

        return $this;
    }

$response->setContentDisposition(ResponseHeaderBag::DISPOSITION_ATTACHMENT, $iso88591EncodedFilename);

        // the parameter filename* is invalid in this case (rawurldecode('f%F6%F6') does not provide a UTF-8 string but an ISO-8859-1 encoded one)         $this->assertSame('attachment; filename=f__.html; filename*=utf-8\'\'f%F6%F6.html', $response->headers->get('Content-Disposition'));
    }

    /** * @dataProvider provideRanges */
    public function testRequests($requestRange, $offset, $length, $responseRange)
    {
        $response = (new BinaryFileResponse(__DIR__.'/File/Fixtures/test.gif', 200, ['Content-Type' => 'application/octet-stream']))->setAutoEtag();

        // do a request to get the ETag         $request = Request::create('/');
        $response->prepare($request);
        $etag = $response->headers->get('ETag');

        // prepare a request for a range of the testing file         $request = Request::create('/');
        $request->headers->set('If-Range', $etag);
        $request->headers->set('Range', $requestRange);

        

$file = new File((string) $file);
            }
        }

        if (!$file->isReadable()) {
            throw new FileException('File must be readable.');
        }

        $this->file = $file;

        if ($autoEtag) {
            $this->setAutoEtag();
        }

        if ($autoLastModified) {
            $this->setAutoLastModified();
        }

        if ($contentDisposition) {
            $this->setContentDisposition($contentDisposition);
        }

        return $this;
    }