}

    @Test
    void testConstructor() {
        assertNotNull(channelManager);
        assertFalse(channelManager.isUseMultiChannel());
        assertEquals(0, channelManager.getChannels().size());
        assertNotNull(channelManager.getLoadBalancer());
    }

    @Test
    void testInitializationWithoutMultiChannelSupport() throws IOException {

    }

    @Test
    void testMultiChannelInitialization() throws Exception {
        // Test that ChannelManager initializes properly
        assertNotNull(channelManager);
        assertNotNull(channelManager.getChannels());
        // Note: isUseMultiChannel() checks if actual multi-channel is negotiated with server
        // In mock environment, this will be false until we mock successful negotiation

        }
        URL website = new URL(urlString);
        ReadableByteChannel rbc;
        rbc = Channels.newChannel(website.openStream());
        FileOutputStream fos = new FileOutputStream(destination);
        fos.getChannel().transferFrom(rbc, 0, Long.MAX_VALUE);
        fos.close();
        rbc.close();
    }

  override fun getTrafficClass(): Int = delegate!!.trafficClass

  @Throws(IOException::class)
  override fun sendUrgentData(value: Int) {
    delegate!!.sendUrgentData(value)
  }

  override fun getChannel(): SocketChannel = delegate!!.channel

  override fun getHandshakeSession(): SSLSession = delegate!!.handshakeSession

  override fun getApplicationProtocol(): String = delegate!!.applicationProtocol