public function test()
{
$payload = new Payload();
$payload->setStatus($payload::SUCCESS)->setInput('input')->setOutput('output')->setMessages('messages')->setExtras('extras');
$this->assertSame($payload::SUCCESS, $payload->getStatus());
$this->assertSame('input', $payload->getInput());
$this->assertSame('output', $payload->getOutput());
$this->assertSame('messages', $payload->getMessages());
$this->assertSame('extras', $payload->getExtras());
}