assertThat(ioe.message).isEqualTo("google.com")
      val cause = ioe.cause!!
      assertThat(cause).isInstanceOf<IOException>()
      assertThat(cause).hasMessage("response size exceeds limit (65536 bytes): 65537 bytes")
    }
  }

  @Test
  fun failOnBadResponse() {
    server.enqueue(dnsResponse("00"))
    try {
      dns.lookup("google.com")
      fail<Any>()
    } catch (ioe: IOException) {

    public static final int MAX_DOMAIN_LENGTH = 255;
    public static final int MAX_SHARE_NAME_LENGTH = 80;
    public static final int MAX_BUFFER_SIZE = 65536; // 64KB default max buffer
    public static final int MAX_SMB2_BUFFER_SIZE = 8388608; // 8MB for SMB2/3
    public static final int MAX_CREDITS = 65535;

    // Patterns for validation
    private static final Pattern VALID_USERNAME = Pattern.compile("^[a-zA-Z0-9._\\-@]+$");

    @Test
    @DisplayName("Test edge case with maximum buffer index")
    void testReadBytesWireFormatMaxBufferIndex() throws SMBProtocolDecodingException {
        byte[] buffer = new byte[65536]; // Large buffer
        int bufferIndex = 65534; // Near the end

        // Set structure size to 2
        SMBUtil.writeInt2(2, buffer, bufferIndex);

        int result = response.readBytesWireFormat(buffer, bufferIndex);

        assertDoesNotThrow(() -> InputValidator.validatePort(65535));

        assertThrows(IllegalArgumentException.class, () -> InputValidator.validatePort(0));
        assertThrows(IllegalArgumentException.class, () -> InputValidator.validatePort(-1));
        assertThrows(IllegalArgumentException.class, () -> InputValidator.validatePort(65536));
    }

    @Test
    @DisplayName("Test timeout validation")

        // Arrange
        byte[] largeBuffer = new byte[65536]; // 64KB buffer

        // Act & Assert
        assertEquals(0, response.writeSetupWireFormat(largeBuffer, 0));
        assertEquals(0, response.writeParametersWireFormat(largeBuffer, 32768));
        assertEquals(0, response.writeDataWireFormat(largeBuffer, 65535));
        assertEquals(0, response.readSetupWireFormat(largeBuffer, 0, 65536));

        // Arrange
        byte[] largeBuffer = new byte[65536]; // 64KB buffer

        // Act & Assert
        assertEquals(0, response.writeSetupWireFormat(largeBuffer, 0));
        assertEquals(0, response.writeParametersWireFormat(largeBuffer, 32768));
        assertEquals(0, response.writeDataWireFormat(largeBuffer, 65535));
        assertEquals(0, response.readSetupWireFormat(largeBuffer, 0, 65536));

    }

    @Test
    void testWriteSingleByte() throws IOException, CIFSException {
        // Given
        when(mockTreeHandle.isSMB2()).thenReturn(true);
        when(mockTreeHandle.getSendBufferSize()).thenReturn(65536);
        when(mockFileHandle.isValid()).thenReturn(false, true); // First false to trigger ensureOpen, then true
        when(mockFileHandle.getFileId()).thenReturn(new byte[16]);

        }

        @Test
        @DisplayName("Should handle large arrays efficiently")
        void testWriteBytesWireFormatWithLargeArray() {
            // Given
            byte[] dst = new byte[65536]; // 64KB array

            // When
            int result = response.writeBytesWireFormat(dst, 32768);

            // Then
            assertEquals(0, result);
        }
    }

    @Nested

        assertEquals(65535, decodedSize);
        assertEquals(65535, referral.getSize());
        assertEquals(65535, referral.getServerType());
        assertEquals(65535, referral.getRFlags());
        assertEquals(65535, referral.getProximity());
        assertEquals(65535, referral.getTtl());
    }

    @Test
    public void testEmptyStrings() {

        });
    }

    @Test
    public void testValidMessageSize() throws Exception {
        validator.validateMessageSize(1024, false);
        validator.validateMessageSize(65535, true);
        validator.validateMessageSize(1048576, false); // 1MB for SMB2
    }

    @Test
    public void testMessageSizeTooSmall() throws Exception {
        assertThrows(SmbException.class, () -> {