/**
* testRead method
*
* @return void
*/
public function testRead()
{
$socket = new FileStreamSocket();
$socket->connect(__DIR__ . '/../test_packets/connack_not_authorized.hex');
$result = Packet::read($socket);
$expected = pack('C*', 0x0, 0x5);
$this->assertEquals($expected, $result->buffer());
}
/**
* Listen on the socket and receive a single packet.
*
* @param $topic Only return packets from this topic (optional)
* @return Packet
*/
public function receivePacket($topic = null)
{
$socket = $this->socket();
while (true) {
if ($topic && !empty($this->inbox[$topic])) {
return array_shift($this->inbox[$topic]);
}
if ($socket->dataAvailable()) {
$packet = Packet::read($socket);
if ($topic && $packet->topic() != $topic) {
$this->inbox[$packet->topic()] = $packet;
continue;
}
return $packet;
}
}
}