getFileExtension()); self::assertEquals('application/vnd.openxmlformats-officedocument.spreadsheetml.sheet', $sut->getContentType()); $spreadsheet = new Spreadsheet(); $file = $sut->save($spreadsheet); self::assertInstanceOf(\SplFileInfo::class, $file); self::assertTrue(file_exists($file->getRealPath())); } public function testGetResponse() { $sut = new BinaryFileResponseWriter(new XlsxWriter(), 'foobar'); $spreadsheet = new Spreadsheet(); $response = $sut->getFileResponse($spreadsheet); self::assertEquals('application/vnd.openxmlformats-officedocument.spreadsheetml.sheet', $response->headers->get('Content-Type')); self::assertStringContainsString('attachment; filename=foobar', $response->headers->get('Content-Disposition')); $file = $response->getFile(); self::assertTrue(file_exists($file->getRealPath())); ob_start(); $response->sendContent(); $content2 = ob_get_clean(); self::assertNotEmpty($content2); self::assertFalse(file_exists($file->getRealPath())); } }