public function ackSendWithEarliestGet()
{
$message = ['key1' => 0, 'key2' => true];
$this->queue->send($message);
$result = $this->queue->get([], PHP_INT_MAX, 0);
$this->assertSame($message['key1'], $result['key1']);
$this->assertSame($message['key2'], $result['key2']);
$this->queue->ackSend($result, ['key1' => 1, 'key2' => 2], strtotime('+ 1 day'));
$actual = $this->queue->get([], PHP_INT_MAX, 0);
$this->assertNull($actual);
}