/**
  * Adds connection to list and sets connection to master mode
  *
  * @param Connection $connection
  *
  * @return $this
  */
 public function addConnection(Connection $connection)
 {
     $connection->setMasterMode();
     $connection->onPacketReceived([$this, 'receivedPacket']);
     $this->connections[$connection->getPid()] = $connection;
     return $this;
 }
 public function testPidSetters()
 {
     $this->connection->setParentPid(10);
     $this->assertSame(10, $this->connection->getParentPid());
     $this->connection->setPid(10);
     $this->assertSame(10, $this->connection->getPid());
 }