SmbTreeImpl tree2 = new SmbTreeImpl(session, "LPT1", "LPT1:");
        assertEquals(SmbConstants.TYPE_PRINTER, tree2.getTreeType());

        SmbTreeImpl tree3 = new SmbTreeImpl(session, "COMM", "COMM");
        assertEquals(SmbConstants.TYPE_COMM, tree3.getTreeType());
    }

    // Test case for DFS related methods
    @Test
    void testDfs() throws SmbException {