// Act
        blob.set(null);

        // Assert
        assertNotNull(blob.get(), "get() should return non-null after set(null)");
        assertEquals(0, blob.length(), "length() should be 0 after set(null)");
        assertEquals("", blob.toString(), "toString() should be empty after set(null)");
    }

    // Verifies constructor stores the exact array reference and exposes it via get()
    @Test

        long allocatedBeforeCleanup = bufferManager.getTotalAllocated();

        // Cleanup should not throw exception
        assertDoesNotThrow(() -> bufferManager.cleanup());

        // After cleanup, all regions should be released (but the count may not match exactly
        // if some regions were pooled rather than immediately released)

     */
    public void setMinimumCount(final int minimumCount) {
        this.minimumCount = minimumCount;
    }

    /**
     * Sets the number of bytes remaining to be read after this request
     *
     * @param remainingBytes
     *            the remainingBytes to set
     */
    public void setRemainingBytes(final int remainingBytes) {
        this.remainingBytes = remainingBytes;

        // Operations should fail after destroy
        assertThrows(IllegalStateException.class, () -> {
            storage.encryptCredentials(plaintext);
        }, "Should throw IllegalStateException after destroy");

        assertThrows(IllegalStateException.class, () -> {
            storage.decryptCredentials(encrypted);
        }, "Should throw IllegalStateException after destroy");

        // Clean up

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     * Creates a new duplicate host helper instance.
     */
    public DuplicateHostHelper() {
        // Default constructor
    }

    /**
     * Initializes the duplicate host helper after construction.
     * Loads duplicate host configurations from the DuplicateHostService.
     */
    @PostConstruct
    public void init() {
        if (logger.isDebugEnabled()) {

        void testGetDfsResponseNeverNull() {
            assertNotNull(response.getDfsResponse());
        }

        @Test
        @DisplayName("Should maintain DfsResponse after reading data")
        void testGetDfsResponseAfterReadingData() {
            byte[] buffer = createValidDfsReferralBuffer();
            DfsReferralResponseBuffer originalBuffer = response.getDfsResponse();

        }

        // Then - Should be able to get buffers again
        byte[] newBuffer = BufferCache.getBuffer();
        assertNotNull(newBuffer, "Should be able to get buffer after release");
        assertEquals(SmbComTransaction.TRANSACTION_BUF_SIZE, newBuffer.length, "Buffer should have correct size");
    }

    /**
     * Test that invalid buffer sizes are rejected during release.
     */

        assertEquals(testData.length, smbRandomAccessFile.getFilePointer());
    }

    @Test
    void testClose() throws SmbException {
        // Mock isOpen to return false after close
        doAnswer(new Answer<Void>() {
            @Override
            public Void answer(InvocationOnMock invocation) throws Throwable {
                when(smbFile.isOpen()).thenReturn(false);

        assertEquals("Success", result);
        assertEquals(6, attemptCount.get()); // Initial attempt + 5 retries
    }

    /**
     * Test: Retry logic fails after exceeding maxRetryCount
     * Verifies that the operation fails after maxRetryCount attempts
     */
    @Test
    public void testRetryLogicExceedsMaxRetryCount() {
        fesenClient.setMaxRetryCount(3);
        fesenClient.setRetryInterval(10L);