public function validateSuccesfulResponse(Response $response, $param = 'ok')
{
$content = $response->getContent();
$data = json_decode($content, true);
$this->assertInternalType('array', $data);
$info = $response->getInfo();
$this->assertInternalType('array', $info);
$this->assertEquals(200, $info['http_code']);
$this->assertEquals($param, $data['args']['curl-easy']);
$this->assertEquals(200, $response->getInfo(CURLINFO_HTTP_CODE));
$this->assertFalse($response->hasError());
}