}

    @Test
    public void testContentCache() {
        CurlResponse response = new CurlResponse();
        byte[] data = "test content".getBytes();
        ContentCache cache = new ContentCache(data);

        response.setContentCache(cache);

        // ContentCache is not directly accessible, but we can test through content methods
        assertNotNull(response);
    }

    @Test

    }

    /**
     * Test that buffer cache handles allocation when cache is full.
     */
    @Test
    public void testBufferAllocationWhenCacheFull() {
        // Given - Allocate many buffers to potentially fill the cache
        List<byte[]> buffers = new ArrayList<>();

        // Allocate more buffers than cache can hold
        for (int i = 0; i < 20; i++) {

            if (!cache.isEmpty()) {
                return cache.remove(0);
            }
            return new byte[bufferSize];
        }

        @Override
        public synchronized void releaseBuffer(byte[] buf) {
            if (buf != null && cache.size() < maxBuffers) {
                cache.add(buf);
            }
        }
    }

    }

    // Tests for cache
    @Test
    void testCache_DfsDisabled() {
        // Scenario: DFS is disabled.
        when(mockConfig.isDfsDisabled()).thenReturn(true);
        DfsReferralDataInternal mockReferral = mock(DfsReferralDataInternal.class);
        // Should not throw any exception and simply return.
        assertDoesNotThrow(() -> dfsImpl.cache(mockContext, "\\\\server\\share\\path", mockReferral));

 */
public interface BufferCache {

    /**
     * Gets a buffer from the cache or creates a new one if the cache is empty.
     *
     * @return a buffer from the cache, or a new one
     */
    byte[] getBuffer();

    /**
     * Return a buffer to the cache
     *
     * @param buf the buffer to return to the cache for reuse
     */
    void releaseBuffer(byte[] buf);

    /**
     * Get the cache key for this referral
     *
     * @return cache key
     */
    String getKey();

    /**
     * Set the cache key for this referral
     *
     * @param key
     *            cache key
     */
    void setKey(String key);

    /**
     * Set the cache map for this referral
     *
     * @param map the cache map to associate with this referral
     */

 * byte[] data = "example data".getBytes();
 * try (ContentCache cache = new ContentCache(data)) {
 *     InputStream inputStream = cache.getInputStream();
 *     // Read from inputStream
 * }
 *
 * // File-based caching
 * File file = new File("example.txt");
 * try (ContentCache cache = new ContentCache(file)) {
 *     InputStream inputStream = cache.getInputStream();
 *     // Read from inputStream
 * }
 * }
 * </pre>

    protected static final String CONTENT_DISPOSITION = "Content-Disposition";

    /** Cache key for highlighted cache content */
    protected static final String HL_CACHE = "hl_cache";

    /** Cache key for search queries */
    protected static final String QUERIES = "queries";

    /** Cache key for cache message */
    protected static final String CACHE_MSG = "cache_msg";

                String key = "key-" + i;
                entry.setKey(key);
                entry.setCacheMap(cache);
                entry.replaceCache();
            }

            // Verify all entries
            assertEquals(10, cache.size());
            for (int i = 0; i < 10; i++) {
                assertNotNull(cache.get("key-" + i));
            }

            // Replace some entries

    /**
     * Gets a buffer from the cache or creates a new one if the cache is empty.
     *
     * Performance: O(1) operation using concurrent queue
     *
     * @return a byte buffer for SMB operations
     * @throws IllegalStateException if buffer size exceeds maximum allowed
     */
    static public byte[] getBuffer() {
        // Try to get from cache first - O(1) operation
        byte[] buf = bufferQueue.poll();