long endTime = System.currentTimeMillis();
        long duration = endTime - startTime;

        // Then - should complete quickly (this is more of a performance indicator)
        assertTrue(duration < 1000, "Creating and using 10000 EmptyIterators should be fast (took " + duration + "ms)");
    }

    @Test
    @DisplayName("EmptyIterator should work correctly in nested iteration")
    void testNestedIteration() {

        // Arrange
        transPeekNamedPipe = new TransPeekNamedPipe(mockConfig, TEST_PIPE_NAME, TEST_FID);
        byte[] smallBuffer = new byte[1];
        byte[] largeBuffer = new byte[1000];

        // Act & Assert
        assertEquals(0, transPeekNamedPipe.readSetupWireFormat(smallBuffer, 0, 1));
        assertEquals(0, transPeekNamedPipe.readSetupWireFormat(largeBuffer, 500, 500));

        trans2FindNext2 = new Trans2FindNext2(config, TEST_SID, TEST_RESUME_KEY, TEST_FILENAME, TEST_BATCH_COUNT, TEST_BATCH_SIZE);

        for (int i = 1; i <= 5; i++) {
            int newResumeKey = i * 1000;
            String newFilename = "file" + i + ".txt";

            trans2FindNext2.reset(newResumeKey, newFilename);

            byte[] buffer = new byte[256];

        }
    }

    static class MockFessConfig extends FessConfig.SimpleImpl {
        @Override
        public Integer getPageRelatedqueryMaxFetchSizeAsInteger() {
            return 1000;
        }
    }

        if (StringUtil.isBlank(configName)) {
            configName = StringUtils.abbreviate(configPath, 30);
        }

        // normalize
        final StringBuilder buf = new StringBuilder(1000);
        for (int i = 0; i < configPath.length(); i++) {
            final char c = configPath.charAt(i);
            if (c == '\\') {
                buf.append('/');
            } else if (c == ' ') {

      }
    };
  }

  public enum Value {
    INSTANCE;
  }

  public enum ListSizeDistribution {
    UNIFORM_0_TO_2(0, 2),
    UNIFORM_0_TO_9(0, 9),
    ALWAYS_0(0, 0),
    ALWAYS_10(10, 10);

    final int min;
    final int max;

    ListSizeDistribution(int min, int max) {
      this.min = min;
      this.max = max;
    }

    public int chooseSize(Random random) {

    executorService =
        new ThreadPoolExecutor(
            NUM_THREADS,
            NUM_THREADS,
            Long.MAX_VALUE,
            SECONDS,
            new ArrayBlockingQueue<Runnable>(1000));
    executorService.prestartAllCoreThreads();
    AtomicInteger integer = new AtomicInteger();
    // Execute a bunch of tasks to ensure that our threads are allocated and hot

        if (input == null) {
            return "null";
        }
        // Remove control characters and limit length
        String sanitized = input.replaceAll("[\\x00-\\x1f]", "");
        if (sanitized.length() > 1000) {
            sanitized = sanitized.substring(0, 997) + "...";
        }
        return sanitized;
    }

    /**
     * Validates that a value is within the specified range
     *

            return "doc-id-" + dataMap.get("url");
        }
    }

    private static class TestIndexingHelper extends IndexingHelper {
        int sendDocumentsCalled = 0;
        long documentSize = 1000;

        @Override
        public void sendDocuments(SearchEngineClient searchEngineClient, DocList docList) {
            sendDocumentsCalled++;
            docList.clear();
        }

        @Override

        assertFalse(result);
    }

    /**
     * Test thread safety of enum
     */
    public void test_threadSafety() throws Exception {
        final int threadCount = 100;
        final int iterationsPerThread = 1000;
        final Set<Exception> exceptions = new HashSet<>();

        Thread[] threads = new Thread[threadCount];
        for (int i = 0; i < threadCount; i++) {