return delegate!!.isConnected
  }

  override fun isClosed(): Boolean {
    return 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) {