public function testSend() {
$response = new Response();
$responseSend = $response
->send();
$this
->assertObjectHasAttribute('headers', $responseSend);
$this
->assertObjectHasAttribute('content', $responseSend);
$this
->assertObjectHasAttribute('version', $responseSend);
$this
->assertObjectHasAttribute('statusCode', $responseSend);
$this
->assertObjectHasAttribute('statusText', $responseSend);
$this
->assertObjectHasAttribute('charset', $responseSend);
}