override fun isConnected(): Boolean = delegate!!.isConnected

  override fun isClosed(): Boolean = delegate!!.isClosed

  @Throws(IOException::class)
  override fun bind(localAddr: SocketAddress) {
    delegate!!.bind(localAddr)
  }

  @Throws(IOException::class)
  override fun connect(remoteAddr: SocketAddress) {
    delegate!!.connect(remoteAddr)
  }

  @Throws(IOException::class)

	return []byte{}
}

func (m *MockConnMeta) ServerVersion() []byte {
	return []byte{}
}

func (m *MockConnMeta) RemoteAddr() net.Addr {
	return nil
}

func (m *MockConnMeta) LocalAddr() net.Addr {
	return nil
}

func newSSHConnMock(username string) ssh.ConnMetadata {
	return &MockConnMeta{username: username}
}

func TestSFTPAuthentication(t *testing.T) {

pkg net, type AddrError struct, Addr string
pkg net, type AddrError struct, Err string
pkg net, type Conn interface { Close, LocalAddr, Read, RemoteAddr, SetDeadline, SetReadDeadline, SetWriteDeadline, Write }
pkg net, type Conn interface, Close() error
pkg net, type Conn interface, LocalAddr() Addr
pkg net, type Conn interface, Read([]uint8) (int, error)
pkg net, type Conn interface, RemoteAddr() Addr

pkg net, method (*UnixConn) CloseRead() error
pkg net, method (*UnixConn) CloseWrite() error
pkg net, type Dialer struct
pkg net, type Dialer struct, Deadline time.Time
pkg net, type Dialer struct, LocalAddr Addr
pkg net, type Dialer struct, Timeout time.Duration
pkg net, type IPAddr struct, Zone string
pkg net, type NS struct
pkg net, type NS struct, Host string
pkg net, type TCPAddr struct, Zone string