}

        @Test
        @DisplayName("Test read string length without termination throws exception")
        void testReadStringLengthNoTermination() {
            byte[] buffer = "TestTest".getBytes();

            assertThrows(RuntimeCIFSException.class, () -> {
                testBlock.readStringLength(buffer, 0, 3);
            });
        }
    }

    @Nested

     */
    @Test
    public void testConcurrentTreeOperationsThreadSafe() throws Exception {
        // Given
        SmbSessionImpl session = new SmbSessionImpl(mockContext, "testhost", "testdomain", mockTransport);

        int threadCount = 10;
        int opsPerThread = 100;
        ExecutorService executor = Executors.newFixedThreadPool(threadCount);

    }

    @Test
    void testGetNbtAllByAddress_StringIntString() throws UnknownHostException {
        // Arrange
        String host = "testHost";
        int type = 0x20;
        String scope = "testScope";
        NetbiosAddress[] expectedAddresses = { mock(NetbiosAddress.class) };

            writer.write("192.168.1.100 TESTHOST\n");
            writer.write("10.0.0.1      SERVER01\n");
        }

        when(mockConfig.getLmHostsFileName()).thenReturn(lmhostsFile.getAbsolutePath());

        // Test first host
        NbtAddress result = lmhosts.getByName("TESTHOST", mockContext);
        assertNotNull(result);
        assertEquals("TESTHOST", result.getHostName());

        // Test second host

    /**
     * Test basic session lifecycle management
     */
    @Test
    @Timeout(5)
    public void testSessionLifecycle() throws Exception {
        SmbSessionImpl session = new SmbSessionImpl(mockContext, "testhost", "testdomain", mockTransport);

        // Test initial state - session starts with usage count > 0 due to transport.acquire()
        assertTrue(session.isInUse(), "New session should be in use due to transport acquisition");

        // Test the constructor with minimal parameters
        mockName = new Name(mockConfig, "TESTHOST", 0x20, null);
        NbtAddress nbtAddress = new NbtAddress(mockName, testAddressInt, false, NbtAddress.H_NODE);

        assertNotNull(nbtAddress);
        assertEquals("TESTHOST", nbtAddress.getHostName());
        assertArrayEquals(new byte[] { (byte) 192, (byte) 168, (byte) 1, (byte) 1 }, nbtAddress.getAddress());

        // Then
        assertEquals(expiration, result);
        verify(mockReferralData).getExpiration();
    }

    @Test
    @DisplayName("Should get next referral")
    void testNext() {
        // Given
        DfsReferralData nextReferral = mock(DfsReferralData.class);
        when(mockReferralData.next()).thenReturn(nextReferral);

        // When

    private SmbTransport transport;

    @BeforeEach
    void setUp() {
        MockitoAnnotations.openMocks(this);
        // Setup transport fields that are accessed directly
        transport.tconHostName = "testHost";
        // Setup session.transport field (accessed directly in SmbTree)
        session.transport = transport;
        // Setup session to return transport via method call

            mockContext.withCredentials(mock(Credentials.class));
            mockContext.renewCredentials("hint", new Exception());
        });
    }

    @Test
    @DisplayName("Should get SmbResource")
    void testGet() throws CIFSException {
        // Given
        String url = "smb://server/share/file";
        SmbResource mockResource = mock(SmbResource.class);
        when(mockContext.get(url)).thenReturn(mockResource);

        assertArrayEquals(plaintext, decrypted);
        assertNotEquals(new String(plaintext), new String(encrypted));
    }

    @Test
    @DisplayName("Should perform DES encryption/decryption")
    void testDES() throws Exception {
        // Given
        byte[] key = "testkey1".getBytes(); // 8 bytes for DES
        byte[] plaintext = "12345678".getBytes(); // 8 bytes (DES block size)

        // When