@Override
            public long getExecuteTime() {
                return execTime.get();
            }

            @Override
            public void commit() {
                // No-op for test
            }
        };

        // Test initial state
        assertEquals(0L, callback.getDocumentSize());
        assertEquals(0L, callback.getExecuteTime());

        // Test store method

            }

            @Override
            public long getDocumentSize() {
                return 0;
            }

            @Override
            public long getExecuteTime() {
                return 0;
            }

            @Override
            public void commit() {
            }
        };

     */
    long getDocumentSize();

    /**
     * Returns the total execution time for index update operations.
     *
     * @return the execution time in milliseconds
     */
    long getExecuteTime();

    /**
     * Commits all pending index update operations to ensure data persistence.
     * This method should be called after all documents have been stored.
     */
    void commit();

        }

        @Override
        public long getDocumentSize() {
            return documentCount.get();
        }

        @Override
        public long getExecuteTime() {
            executeTime.set(System.currentTimeMillis() - startTime);
            return executeTime.get();
        }

        @Override
        public void commit() {
            committed.set(true);

    }

    // Fast mock implementations to minimize overhead

    private static class FastMockIndexUpdateCallback implements IndexUpdateCallback {
        @Override
        public long getExecuteTime() {
            return 100L;
        }

        @Override
        public long getDocumentSize() {
            return 10L;
        }

        @Override
        public void commit() {

            }
        }
    }

    /**
     * Gets the total execution time for index updates.
     *
     * @return the total execution time in milliseconds
     */
    public long getExecuteTime() {
        return executeTime;
    }

    /**
     * Gets the list of crawler session IDs being processed.
     *
     * @return the list of session IDs
     */

        assertEquals(0, indexUpdateCallback.getExecuteTime());

        systemHelper.processingTime = 100L;

        DataStoreParams paramMap = new DataStoreParams();
        Map<String, Object> dataMap = new HashMap<>();
        dataMap.put("url", "http://example.com/test");

        indexUpdateCallback.store(paramMap, dataMap);
        assertEquals(100L, indexUpdateCallback.getExecuteTime());

        } catch (final InterruptedException e) {
            logger.warn("Interrupted index update.", e);
        }

        crawlingInfoHelper.putToInfoMap(Constants.WEB_FS_INDEX_EXEC_TIME, Long.toString(indexUpdater.getExecuteTime()));
        crawlingInfoHelper.putToInfoMap(Constants.WEB_FS_INDEX_SIZE, Long.toString(indexUpdater.getDocumentSize()));

        if (systemHelper.isForceStop()) {
            return;
        }