void testNextReturnsNull() {
        // When
        SmbResource result = emptyIterator.next();

        // Then
        assertNull(result, "next() should return null for empty iterator");
    }

    @Test
    @DisplayName("next should not throw NoSuchElementException")
    void testNextDoesNotThrowException() {
        // When & Then
        assertDoesNotThrow(() -> {
            emptyIterator.next();

        when(readResponse.getFlags2()).thenReturn(SmbConstants.FLAGS2_SECURITY_SIGNATURES);
        when(readResponse.getSignSeq()).thenReturn(10);
        when(readResponse.getCommand()).thenReturn((int) ServerMessageBlock.SMB_COM_READ_ANDX);
        when(readResponse.getLength()).thenReturn(100);
        when(readResponse.getDataLength()).thenReturn(50);
        when(readResponse.getData()).thenReturn(readData);

            buffer.putInt(512); // Bytes per sector
            byte[] bufferArray = buffer.array();

            // When
            int bytesConsumed = fileFsFullSizeInfo.decode(bufferArray, 0, bufferArray.length);

            // Then
            assertEquals(32, bytesConsumed);
            assertEquals(1048576L * 8 * 512, fileFsFullSizeInfo.getCapacity());

        DfsReferralData mockData = mock(DfsReferralData.class);
        when(mockData.getServer()).thenReturn("SERVER");
        when(mockData.getShare()).thenReturn("share");
        when(mockData.getPath()).thenReturn("path");
        when(mockData.getExpiration()).thenReturn(System.currentTimeMillis() + 60000);
        when(mockData.getPathConsumed()).thenReturn(0);
        when(mockData.getDomain()).thenReturn("DOMAIN");

        context = mock(CIFSContext.class);
        when(context.getConfig()).thenReturn(config);
    }

    /**
     * Test method for {@link jcifs.internal.smb1.com.SmbComClose#SmbComClose(jcifs.Configuration, int, long)}.
     */
    @Test
    public void testConstructor() {
        // Given
        int fid = 123;
        long lastWriteTime = System.currentTimeMillis();

        // When

            // Given
            long sourceOffset = 1024L;
            long targetOffset = 2048L;
            int length = 4096;

            // When
            SrvCopychunk chunk = new SrvCopychunk(sourceOffset, targetOffset, length);

            // Then
            assertNotNull(chunk);
        }

        @ParameterizedTest
        @DisplayName("Should create instance with various offset values")

        lenient().when(tree.acquire()).thenReturn(tree);
        lenient().when(tree.getConfig()).thenReturn(config);
        lenient().when(config.getListCount()).thenReturn(10);
        lenient().when(config.getListSize()).thenReturn(4096);

        lenient().when(parent.getLocator()).thenReturn(locator);
        lenient().when(locator.getUNCPath()).thenReturn("\\\\SERVER\\Share\\dir\\"); // ends with \\

        // Set up mock behaviors
        when(mockContext.getConfig()).thenReturn(mockConfig);
        when(mockContext.getCredentials()).thenReturn(mockCredentials);
        when(mockContext.getTransportPool()).thenReturn(mockTransportPool);
        when(mockConfig.getDfsTtl()).thenReturn(300L);

        // Mock transport to throw IOException - simulating connection failure

        // Given
        when(request.isResponseAsync()).thenReturn(true);
        when(request.getNext()).thenReturn(nextRequest);
        when(request.split()).thenReturn(nextRequest);
        when(request.allowChain(nextRequest)).thenReturn(true);
        when(request.createCancel()).thenReturn(nextRequest);
        when(request.size()).thenReturn(1024);
        when(request.getOverrideTimeout()).thenReturn(5000);

        // Given
        when(mockCredentials.isAnonymous()).thenReturn(true);

        // When
        boolean isAnonymous = mockCredentials.isAnonymous();

        // Then
        assertTrue(isAnonymous);
        verify(mockCredentials).isAnonymous();
    }

    @Test
    @DisplayName("Should check for guest credentials")
    void testIsGuest() {
        // Given