* The pipe should be opened read-only.
     */

    public static final int PIPE_TYPE_RDONLY = O_RDONLY;

    /**
     * The pipe should be opened only for writing.
     */

    public static final int PIPE_TYPE_WRONLY = O_WRONLY;

    /**
     * The pipe should be opened for both reading and writing.
     */

    public static final int PIPE_TYPE_RDWR = O_RDWR;

    /**

        void testEncodeWithOffset() {
            String path = "\\\\test";
            int maxReferralLevel = 5;
            buffer = new DfsReferralRequestBuffer(path, maxReferralLevel);

            int offset = 10;
            byte[] dst = new byte[offset + buffer.size()];
            int bytesEncoded = buffer.encode(dst, offset);

            assertEquals(buffer.size(), bytesEncoded);

    }

    /**
     * Test that a large file lock (bit 0x10 set) is encoded and decoded correctly.
     */
    @ParameterizedTest
    @ValueSource(ints = { 0x10, 0x11 })
    void largeFileFlagSet_and_decoded_according_to_type(int type) throws Exception {
        Configuration cfg = mock(Configuration.class);
        SmbComLockingAndX cmd = new SmbComLockingAndX(cfg);
        setField(cmd, "fid", 1);

    void mapsKnownDosCodesToNtStatus(int dosCode, int expectedNtStatus) {
        // Act
        int actual = findNtStatusOrMinusOne(dosCode);

        // Assert
        assertEquals(expectedNtStatus, actual, "Mapping must match table entry");
    }

    @Test
    @DisplayName("Edge: zero DOS code maps to zero NTSTATUS")
    void zeroCodeMapsToZero() {
        // Act
        int actual = findNtStatusOrMinusOne(0x00000000);

        }

        @ParameterizedTest
        @ValueSource(ints = { 0, 1, 2, 3, 5, 6, 100, 255, 65535 })
        @DisplayName("Should throw exception for various invalid structure sizes")
        void testReadBytesWireFormatVariousInvalidSizes(int invalidSize) {
            // Given
            byte[] buffer = new byte[10];
            int bufferIndex = 0;
            SMBUtil.writeInt2(invalidSize, buffer, bufferIndex);

            byte[] buffer = new byte[8];
            int encoded = original.encode(buffer, 0);

            assertEquals(8, encoded);

            // Decode into new instance
            FileEndOfFileInformation decoded = new FileEndOfFileInformation();
            int decodedBytes = decoded.decode(buffer, 0, buffer.length);

            assertEquals(8, decodedBytes);

        if (response.command == ServerMessageBlock.SMB_COM_READ_ANDX) {
            /* SmbComReadAndXResponse reads directly from the stream into separate byte[] b.
             */
            final SmbComReadAndXResponse raxr = (SmbComReadAndXResponse) response;
            final int length = response.length - raxr.dataLength;
            update(data, index, length - SmbConstants.SIGNATURE_OFFSET - 8);

    }

    @ParameterizedTest
    @ValueSource(ints = { 0, 1, 2, 4, 8, 16 })
    @DisplayName("Test verify method with different extra padding values")
    void testVerifyWithDifferentExtraPadding(int extraPad) {
        // Arrange
        int offset = 0;
        int length = testData.length;

        int written = trans2QueryPathInfo.writeParametersWireFormat(buffer, 0);

        // Should handle Unicode characters
        assertTrue(written > 6);

        // Check information level
        int actualInfoLevel = SMBUtil.readInt2(buffer, 0);
        assertEquals(0x0101, actualInfoLevel);
    }

    @ParameterizedTest
    @ValueSource(ints = { -1, 0, 100, 255, Integer.MAX_VALUE })

    void testWriteParametersWireFormatNetServerEnum2() throws Exception {
        String domain = "TESTDOMAIN";
        int serverTypes = NetServerEnum2.SV_TYPE_ALL;
        netServerEnum2 = new NetServerEnum2(realConfig, domain, serverTypes);

        byte[] dst = new byte[1024];
        int dstIndex = 0;

        int bytesWritten = netServerEnum2.writeParametersWireFormat(dst, dstIndex);

        // Verify bytes written