@DisplayName("Should encode basic lock structure correctly")
        void testBasicEncoding() {
            long offset = 0x1234567890ABCDEFL;
            long length = 0xFEDCBA0987654321L;
            int flags = 0x12345678;

            lock = new Smb2Lock(offset, length, flags);
            int encoded = lock.encode(buffer, 0);

            assertEquals(24, encoded);

            // Verify offset (8 bytes)

    }

    @Test
    @DisplayName("Test readParametersWireFormat reads length correctly")
    void testReadParametersWireFormat() throws Exception {
        byte[] buffer = new byte[100];
        int expectedLength = 0x12345678;

        // Write length in little-endian format
        SMBUtil.writeInt4(expectedLength, buffer, 0);

        int result = response.readParametersWireFormat(buffer, 0, buffer.length);

        void testCompleteEncodingStructure() {
            // Given
            long sourceOffset = 0x1234567890ABCDEFL;
            long targetOffset = 0xFEDCBA0987654321L;
            int length = 0x12345678;
            SrvCopychunk chunk = new SrvCopychunk(sourceOffset, targetOffset, length);
            byte[] buffer = new byte[EXPECTED_SIZE];

            // When
            int bytesWritten = chunk.encode(buffer, 0);

        // Prepare test data
        byte[] buffer = new byte[64];
        int bufferIndex = 10;

        // Set capabilities (4 bytes)
        int testCapabilities = 0x12345678;
        SMBUtil.writeInt4(testCapabilities, buffer, bufferIndex);

        // Set server GUID (16 bytes)
        byte[] testGuid = new byte[16];
        for (int i = 0; i < 16; i++) {

		{"032033\x00 ", 032033, true},
		{"320330\x00 ", 0320330, true},
		{"0000660\x00 ", 0660, true},
		{"\x00 0000660\x00 ", 0660, true},
		{"0123456789abcdef", 0, false},
		{"0123456789\x00abcdef", 0, false},
		{"01234567\x0089abcdef", 342391, true},
		{"0123\x7e\x5f\x264123", 0, false},
	}

	for _, v := range vectors {
		var p parser
		got := p.parseNumeric([]byte(v.in))
		ok := (p.err == nil)
		if ok != v.ok {
			if v.ok {

    }

    @Test
    @DisplayName("Test desired access setter")
    void testSetDesiredAccess() {
        request = new Smb2CreateRequest(mockConfig, "test.txt");

        int access = 0x12345678;
        request.setDesiredAccess(access);

        byte[] buffer = new byte[1024];
        request.writeBytesWireFormat(buffer, 0);

    assertCrc(0xf3dbd4fe, "1234567890".getBytes(UTF_8));
    assertCrc(0xBFE92A83, "23456789".getBytes(UTF_8));
  }

  public void testAgainstSimplerImplementation() {
    Random r = new Random(1234567);
    for (int length = 0; length < 1000; length++) {
      byte[] bytes = new byte[length];
      r.nextBytes(bytes);
      assertCrc(referenceCrc(bytes), bytes);
    }
  }

    @DisplayName("Test decode with typical values")
    void testDecodeWithTypicalValues() throws SMBProtocolDecodingException {
        // Prepare test data
        byte[] buffer = new byte[22];
        int idFileSystem = 0x12345678;
        int sectPerAlloc = 8;
        long alloc = 1000000L;
        long free = 500000L;
        int bytesPerSect = 512;

        // Encode test data
        int offset = 0;

    void testReadBytesWireFormatReserved2Field() throws Exception {
        // Given
        byte[] buffer = new byte[256];
        int bodyStart = 0;
        int dataOffsetFromHeader = 80;
        int reserved2Value = 0x12345678;

        // Write structure
        SMBUtil.writeInt2(17, buffer, bodyStart);
        buffer[bodyStart + 2] = (byte) dataOffsetFromHeader;
        SMBUtil.writeInt4(10, buffer, bodyStart + 4);

    void testGetFileIndex() throws SMBProtocolDecodingException {
        // Prepare test data
        byte[] buffer = createValidBuffer("file.txt", "FILE~1.TXT", true);
        int expectedFileIndex = 0x12345678;
        SMBUtil.writeInt4(expectedFileIndex, buffer, 4);

        // Decode
        fileBothDirectoryInfo.decode(buffer, 0, buffer.length);

        // Verify