}
        offset += descrBytes.length;

        // 3. Level (2 bytes)
        assertEquals(0x0001, SMBUtil.readInt2(dst, offset));
        offset += 2;

        // 4. MaxDataCount (2 bytes)
        int maxDataCount = SMBUtil.readInt2(dst, offset);
        assertTrue(maxDataCount > 0);
        offset += 2;

        // Verify total bytes written

            // Assert: message is meaningful
            assertEquals("Structure size is not 4", ex.getMessage());
        }

        @Test
        @DisplayName("Null buffer leads to NullPointerException from readInt2")
        void nullBuffer_throwsNPE() {
            // Arrange
            Smb2LogoffResponse resp = newResponse();

            // Act & Assert

    }
  }

  @Test
  fun publicSuffixExceptions() {
    val buffer = Buffer()
    FileSystem.SYSTEM.read(pathForTests) {
      var length = readInt()
      skip(length.toLong())
      length = readInt()
      buffer.write(this, length.toLong())
    }
    while (!buffer.exhausted()) {
      val exception = buffer.readUtf8LineStrict()

	}
	for zb0001 > 0 {
		zb0001--
		field, err = dc.ReadMapKeyPtr()
		if err != nil {
			err = msgp.WrapError(err)
			return
		}
		switch msgp.UnsafeString(field) {
		case "Num":
			z.Num, err = dc.ReadInt()
			if err != nil {
				err = msgp.WrapError(err, "Num")
				return
			}
		case "String":
			z.String, err = dc.ReadString()
			if err != nil {
				err = msgp.WrapError(err, "String")
				return
			}

        assertEquals(4, written, "Should report 4 bytes written");
        // StructureSize (2 bytes, LE) == 4
        assertEquals(4, SMBUtil.readInt2(buf, offset));
        // Reserved (2 bytes, LE) == 0
        assertEquals(0, SMBUtil.readInt2(buf, offset + 2));
    }

    @Test
    @DisplayName("writeBytesWireFormat throws when buffer too small")
    void writeBytesWireFormat_throwsIfInsufficientSpace() {

    try {
      listSource().buffer().use { bufferedSource ->
        val totalBytes = bufferedSource.readInt()
        publicSuffixListBytes = bufferedSource.readByteString(totalBytes.toLong())

        val totalExceptionBytes = bufferedSource.readInt()
        publicSuffixExceptionListBytes = bufferedSource.readByteString(totalExceptionBytes.toLong())
      }

      synchronized(this) {

            /*
             * these fields are common to all andx commands
             * so let's populate them here
             */

            andxCommand = buffer[bufferIndex];
            andxOffset = readInt2(buffer, bufferIndex + 2);

            if (andxOffset == 0) { /* Snap server workaround */
                andxCommand = (byte) 0xFF;
            }

            /*

     */
    @Override
    protected int readBytesWireFormat(final byte[] buffer, final int bufferIndex) throws SMBProtocolDecodingException {
        final int structureSize = SMBUtil.readInt2(buffer, bufferIndex);
        if (structureSize != 4) {
            throw new SMBProtocolDecodingException("Expected structureSize = 4");
        }
        return 4;
    }

     */
    @Override
    protected int readBytesWireFormat(final byte[] buffer, final int bufferIndex) throws SMBProtocolDecodingException {
        final int structureSize = SMBUtil.readInt2(buffer, bufferIndex);
        if (structureSize != 4) {
            throw new SMBProtocolDecodingException("Structure size != 4");
        }

        return 4;
    }

    int writeBytesWireFormat(final byte[] dst, final int dstIndex) {
        return 0;
    }

    @Override
    int readParameterWordsWireFormat(final byte[] buffer, final int bufferIndex) {
        count = readInt2(buffer, bufferIndex) & 0xFFFFL;
        return 8;
    }

    @Override
    int readBytesWireFormat(final byte[] buffer, final int bufferIndex) {
        return 0;
    }

    @Override