byte[] buffer = new byte[10];
        int bytesRead = stream.read(buffer, 2, 5);

        assertEquals(5, bytesRead);
        assertEquals("01234", new String(buffer, 2, 5));
    }

    public void test_available_delegatesToUnderlying() throws IOException {
        // Test that available() delegates to underlying stream
        byte[] data = "Test data".getBytes();

        void shouldIdentifyFailedStates() {
            // Failed states: 5=disconnecting, 6=disconnected/invalid
            int[] failedStates = { 5, 6 };
            int[] nonFailedStates = { 0, 1, 2, 3, 4 };

            for (int state : failedStates) {
                transport.setState(state);
                assertTrue(transport.isFailed(), "State " + state + " should be failed");
            }

  }

  private class FakeSocket(
    private val localAddress: InetAddress,
    private val localPort: Int,
    private val remoteAddress: InetAddress = localAddress,
    private val remotePort: Int = 1234,
  ) : Socket() {
    override fun getInputStream() = Buffer().inputStream()

    override fun getOutputStream() = Buffer().outputStream()

    override fun getInetAddress() = remoteAddress

            4, MODIFIABLE, newArrayList(1, 2, 3), IteratorTester.KnownOrder.KNOWN_ORDER) {
          @Override
          protected Iterator<Integer> newTargetIterator() {
            return Lists.newArrayList(1, 2, 3, 4).iterator();
          }
        };
    assertFailure(tester);
  }

  public void testCanCatchDifferentContents() {
    IteratorTester<Integer> tester =
        new IteratorTester<Integer>(

        when(nego.getServerData()).thenReturn(serverData);
        when(transport.getNegotiateResponse()).thenReturn(nego);

        // Mock config methods needed for SMB1
        when(config.getPid()).thenReturn(1234);

        SmbComTreeConnectAndXResponse response = mock(SmbComTreeConnectAndXResponse.class);
        when(response.getService()).thenReturn("A:");
        when(response.isValidTid()).thenReturn(true);

        // Test different sizes
        assertEquals("00", Hexdump.toHexString(0, 2));
        assertEquals("FF", Hexdump.toHexString(255, 2));
        assertEquals("1234", Hexdump.toHexString(0x1234, 4));
    }

    @Test
    @DisplayName("Should convert long to hex string with padding")
    void testLongToHexString() {
        // Test various long values

        }
    }

    @BeforeEach
    void setUp() {
        MockitoAnnotations.openMocks(this);
        when(mockConfig.getMaximumBufferSize()).thenReturn(65535);
        when(mockConfig.getPid()).thenReturn(1234);
        response = new TestSmbComTransactionResponse(mockConfig);
    }

    @Test
    @DisplayName("Test constructor initialization with config only")
    void testConstructorWithConfigOnly() {

  }

  private static final List<Integer> SOME_LIST = Lists.newArrayList(1, 2, 3, 4);

  private static final List<Integer> SOME_SEQUENTIAL_LIST = new LinkedList<>(asList(1, 2, 3, 4));

  private static final List<String> SOME_STRING_LIST = asList("1", "2", "3", "4");

  private static final Function<Number, String> SOME_FUNCTION = new SomeFunction();

    }

    @Test
    @DisplayName("Should get challenge from server")
    void testGetChallenge() throws Exception {
        // Given: Mock transport with server key
        byte[] expectedKey = { 1, 2, 3, 4 };

        SmbTransportPoolImpl poolSpy = spy(pool);
        when(ctx.getTransportPool()).thenReturn(poolSpy);

        SmbTransportImpl mockTransport = mock(SmbTransportImpl.class);

        authElementVector.add(new DERTaggedObject(0, new ASN1Integer(999))); // ad-type
        authElementVector.add(new DERTaggedObject(1, new DEROctetString(new byte[] { 1, 2, 3, 4 })));
        authDataVector.add(new DERSequence(authElementVector));
        vector.add(new DERTaggedObject(10, new DERSequence(authDataVector)));

        DERSequence sequence = new DERSequence(vector);