// metacacheBlockSize is the number of file/directory entries to have in each block.
	metacacheBlockSize = 5000

	// metacacheSharePrefix controls whether prefixes on dirty paths are always shared.
	// This will make `test/a` and `test/b` share listings if they are concurrent.
	// Enabling this will make cache sharing more likely and cause less IO,
	// but may cause additional latency to some calls.
	metacacheSharePrefix = false
)

        // Normal extensions should be allowed
        assertEquals("\\share\\file.txt", validator.validatePath("\\share\\file.txt"));
        assertEquals("\\share\\document.docx", validator.validatePath("\\share\\document.docx"));
        assertEquals("\\share\\archive.tar.gz", validator.validatePath("\\share\\archive.tar.gz"));
    }

    @Test
    public void testInternationalCharacters() throws Exception {

        SmbResourceLocatorImpl a = locator("smb://server/share/dir/file.txt");
        assertEquals("file.txt", a.getName());

        // share name with trailing slash when only share present
        SmbResourceLocatorImpl b = locator("smb://server/share/");
        assertEquals("share/", b.getName());

        // host when no path/share
        SmbResourceLocatorImpl c = locator("smb://server/");

    CIFSContext context = getTestContext();
    context.getConfig().setProperty("jcifs.smb.client.directoryNotificationsEnabled", "true");
    
    SmbFile dir = new SmbFile("smb://server/share/testdir/", context);
    SmbFile testFile = new SmbFile("smb://server/share/testdir/newfile.txt", context);
    
    // Get initial listing (establishes cache)
    SmbFile[] initialFiles = dir.listFiles();
    
    // Create new file

            "share, " // empty service
    })
    void getSmbTree_invalid(String share, String service) {
        doThrow(new IllegalArgumentException("invalid share/service")).when(session).getSmbTree(eq(share), eq(service));

        IllegalArgumentException ex = assertThrows(IllegalArgumentException.class, () -> session.getSmbTree(share, service));
        assertTrue(ex.getMessage().contains("invalid"));

            assertEquals("smb1://server/share/", new SmbFile("smb1://server/share/file.txt").getParent());
            // Test parent of a directory
            assertEquals("smb1://server/share/", new SmbFile("smb1://server/share/dir/").getParent());
            // Test parent of a share
            assertEquals("smb1://server/", new SmbFile("smb1://server/share/").getParent());
            // Test parent of a server

      sourceCount++
    }

    return RelaySource()
  }

  internal inner class RelaySource : Source {
    private val timeout = Timeout()

    /** The operator to read and write the shared file. Null if this source is closed. */
    private var fileOperator: FileOperator? = FileOperator(file!!.channel)

    /** The next byte to read. This is always less than or equal to [upstreamPos]. */

     */
    int connectionState;
    int tid;

    String share;
    String service = "?????";
    String service0;
    SmbSession session;
    boolean inDfs, inDomainDfs;
    int tree_num; // used by SmbFile.isOpen

    SmbTree(final SmbSession session, final String share, final String service) {
        this.session = session;
        this.share = share.toUpperCase();
        if (service != null && !service.startsWith("??")) {

        SmbTreeImpl tree = new SmbTreeImpl(session, "SHARE", "A:");
        assertNotNull(tree);
        assertEquals("SHARE", tree.getShare());
        assertEquals("A:", tree.getService());
    }

    // Test case for the matches method
    @Test
    void testMatches() {
        SmbTreeImpl tree = new SmbTreeImpl(session, "SHARE", "A:");
        assertTrue(tree.matches("share", "A:"));

            p++;
        }
        while (p < len && pathInfo.charAt(p) == '/') {
            p++;
        }
        if (p < len) { /* then there must be a share */
            out[i] = '/';
            i++;
            do { /* collect the share name */
                out[i++] = ch = pathInfo.charAt(p++);
            } while (p < len && ch != '/');
        }
        return new String(out, 0, i);
    }