assertEquals(2048L * 4 * 4096, fileFsSizeInfo.getCapacity());
            assertEquals(1024L * 4 * 4096, fileFsSizeInfo.getFree());
        }

        @Test
        @DisplayName("Should handle negative values in buffer")
        void shouldHandleNegativeValuesInBuffer() throws SMBProtocolDecodingException {
            // Given - negative values (treated as unsigned in protocol)

    }

    @Test
    @DisplayName("close(): clears cache and closes handle; does not close shared SmbFile")
    void close_sharedFile_closesHandle_only() throws Exception {
        SmbRandomAccessFile raf = newInstance("rw", false, true, false);
        SmbFile file = (SmbFile) getField(raf, "file");
        SmbFileHandleImpl handle = (SmbFileHandleImpl) getField(raf, "handle");

        // Act
        raf.close();

        assertEquals("FFFE80", Hexdump.toHexString(data2, 0, 6)); // 6 chars = 3 bytes
        assertEquals("FFFE807F", Hexdump.toHexString(data2, 0, 8)); // 8 chars = 4 bytes

        // Test odd size (should handle correctly)
        byte[] data3 = { 0x0A, 0x0B, 0x0C };
        assertEquals("0", Hexdump.toHexString(data3, 0, 1)); // 1 char = 0.5 bytes (rounds up to 1)

            configField.setAccessible(true);
            assertEquals(mockConfig, configField.get(request));
        }

        @Test
        @DisplayName("Should handle null configuration")
        void testConstructorWithNullConfig() {
            assertDoesNotThrow(() -> {
                Smb2EchoRequest request = new Smb2EchoRequest(null);
                assertNotNull(request);

        for (int i = 0; i < WinError.WINERR_CODES.length; i++) {
            handler.handle(WinError.WINERR_CODES[i], WinError.WINERR_MESSAGES[i]);
        }

        // Verify the collaborator is invoked exactly N times
        verify(handler, times(WinError.WINERR_CODES.length)).handle(anyInt(), anyString());

        // Capture one known interaction to verify argument integrity

 * Lesser General Public License for more details.
 */
package jcifs.internal.smb2.persistent;

/**
 * Constants for SMB2/3 durable and persistent handle capabilities.
 */
public final class Smb2HandleCapabilities {

    /**
     * Flag indicating persistent handle capability
     */
    public static final int SMB2_DHANDLE_FLAG_PERSISTENT = 0x00000002;

    /**
     * Default timeout for durable handles (2 minutes)

     * @throws SmbException
     */
    synchronized SmbFileHandleImpl ensureOpen() throws CIFSException {
        if (this.handle == null || !this.handle.isValid()) {
            // one extra acquire to keep this open till the stream is released
            if (this.file instanceof SmbNamedPipe) {
                this.handle = this.file.openUnshared(SmbConstants.O_EXCL, ((SmbNamedPipe) this.file).getPipeType() & 0xFF0000, this.sharing,

    /**
     * Construct bind message
     *
     */
    public DcerpcBind() {
    }

    DcerpcBind(final DcerpcBinding binding, final DcerpcHandle handle) {
        this.binding = binding;
        this.max_xmit = handle.getMaxXmit();
        this.max_recv = handle.getMaxRecv();
        this.ptype = 11;
        this.flags = DCERPC_FIRST_FRAG | DCERPC_LAST_FRAG;
    }

    @Override
    public int getOpnum() {

    /**
     * Constructs a new DcerpcBind message.
     */
    public DcerpcBind() {
    }

    DcerpcBind(final DcerpcBinding binding, final DcerpcHandle handle) {
        this.binding = binding;
        max_xmit = handle.max_xmit;
        max_recv = handle.max_recv;
        ptype = 11;
        flags = DCERPC_FIRST_FRAG | DCERPC_LAST_FRAG;
    }

    @Override
    public int getOpnum() {
        return 0;
    }

            // Should use caller available units, not actual free units
            assertEquals(500L * 8 * 512, fileFsFullSizeInfo.getFree());
        }

        @Test
        @DisplayName("Should handle negative values in buffer")
        void shouldHandleNegativeValuesInBuffer() throws SMBProtocolDecodingException {
            // Given - negative values (treated as unsigned in protocol)