public function testErrorDetection()
{
$response = Response::fromString($this->getTestOkResponse());
$this->assertFalse($response->isError());
$response->setCode(400);
$this->assertTrue($response->isError());
$response = new Response();
$this->assertTrue($response->isError());
$response = new Response();
// Curl timeout
$response->setErrorCode(68);
$this->assertTrue($response->isError());
}