public function createMessagePong(Message $ping)
{
if ($ping->getType() !== Message::TYPE_ECHO_REQUEST) {
throw new InvalidArgumentException();
}
return new Message(Message::TYPE_ECHO_REPLY, 0, null, $ping->getHeader(), $ping->getPayload());
}
public function testGetters()
{
$message = new Message(1, 2, 3, 4, 'payload');
$this->assertEquals(1, $message->getType());
$this->assertEquals(2, $message->getCode());
$this->assertEquals(3, $message->getChecksum());
$this->assertEquals(4, $message->getHeader());
$this->assertEquals('payload', $message->getPayload());
$this->assertFalse($message->isChecksumValid());
}