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 testRpcPtCancel() {
            assertEquals(0x12, DcerpcConstants.RPC_PT_CANCEL, "RPC_PT_CANCEL should be 0x12");
        }

        @Test
        @DisplayName("RPC_PT_ACK should have correct value")
        void testRpcPtAck() {
            assertEquals(0x13, DcerpcConstants.RPC_PT_ACK, "RPC_PT_ACK should be 0x13");
        }

        @Test

    class ParameterizedInit {
        static Stream<Arguments> validRanges() {
            byte[] src = new byte[] { 0, 1, 2, 3 };
            return Stream.of(Arguments.of(src, 0, 0, new byte[] {}), Arguments.of(src, 0, 4, new byte[] { 0, 1, 2, 3 }),
                    Arguments.of(src, 1, 2, new byte[] { 1, 2 }), Arguments.of(src, 3, 1, new byte[] { 3 }));
        }

package jcifs.smb1.smb1;

class Trans2QueryFSInformationResponse extends SmbComTransactionResponse {

    // information levels
    static final int SMB_INFO_ALLOCATION = 1;
    static final int SMB_QUERY_FS_SIZE_INFO = 0x103;
    static final int SMB_FS_FULL_SIZE_INFORMATION = 1007;

    class SmbInfoAllocation implements AllocInfo {
        long alloc; // Also handles SmbQueryFSSizeInfo
        long free;
        int sectPerAlloc;

     */
    int RPC_PT_SHUTDOWN = 0x11;
    /**
     * Cancel packet type
     */
    int RPC_PT_CANCEL = 0x12;
    /**
     * Acknowledgment packet type
     */
    int RPC_PT_ACK = 0x13;
    /**
     * Reject packet type
     */
    int RPC_PT_REJECT = 0x14;
    /**
     * Connection-oriented cancel packet type
     */
    int RPC_PT_CO_CANCEL = 0x15;
    /**

     * - Negative values with 0xC0000000 bits set are returned as-is
     * - Positive values not in DOS_ERROR_CODES map to NT_STATUS_UNSUCCESSFUL
     */
    @ParameterizedTest
    @ValueSource(ints = { 0, 1, 123, -7 })
    void testGetNtStatusVariousCodes(int errcode) {
        SmbException ex = new SmbException(errcode, false);
        int expected;
        if (errcode == 0) {
            expected = 0;

        smbComOpenAndX = new SmbComOpenAndX(fileName, access, flags, andx);
        assertEquals(fileName, smbComOpenAndX.path);
        assertEquals(ServerMessageBlock.SMB_COM_OPEN_ANDX, smbComOpenAndX.command);
        assertEquals(0x12, smbComOpenAndX.openFunction); // OPEN_FN_CREATE | OPEN_FN_TRUNC
    }

    /**
     * Test constructor with O_CREAT and O_EXCL flags.
     */
    @Test
    void testConstructor_CreateAndFailIfExists() {

     *
     * @throws SmbException if the SID string is invalid
     */
    @Test
    void testStringConstructorWithHex() throws SmbException {
        SID sid = new SID("S-1-0x12-21-1");
        assertEquals(1, sid.revision);
        assertEquals(0x12, sid.identifier_authority[5]);
        assertEquals(2, sid.sub_authority_count);
        assertEquals(21, sid.sub_authority[0]);
        assertEquals(1, sid.sub_authority[1]);
    }

     */
    public static final byte FILE_NAMES_INFO = 0x0C;

    /**
     * File information class for both names with file IDs.
     */
    public static final byte FILE_ID_BOTH_DIRECTORY_INFO = 0x24;

    /**
     * File information class for full directory information with file IDs.
     */
    public static final byte FILE_ID_FULL_DIRECTORY_INFO = 0x26;

    /**

        assertEquals(0x0068, SmbComTransaction.NET_SERVER_ENUM2);
        assertEquals(0x00D7, SmbComTransaction.NET_SERVER_ENUM3);

        // Test TRANS subcommands
        assertEquals((byte) 0x23, SmbComTransaction.TRANS_PEEK_NAMED_PIPE);
        assertEquals((byte) 0x53, SmbComTransaction.TRANS_WAIT_NAMED_PIPE);
        assertEquals((byte) 0x54, SmbComTransaction.TRANS_CALL_NAMED_PIPE);