crawlerContext.setStatus(CrawlerStatus.RUNNING);
        crawlerContext.maxThreadCheckCount = 1; // Will exit after 1 check

        crawlerThread.run();

        verify(intervalController, times(1)).delay(IntervalController.NO_URL_IN_QUEUE);
    }

    /**
     * Test isContinue with active threads still running.
     */
    public void test_isContinue_withActiveThreads() throws Exception {

        Thread.sleep(200);

        long laterAge = keyManager.getKeyAge(sessionId);
        assertTrue(laterAge >= 200, "Age should increase after delay");
    }

    @Test
    public void testKeyAgeNonExistent() {
        assertEquals(-1, keyManager.getKeyAge("non-existent"), "Non-existent key should return -1 for age");
    }

    @Test

                                localFailures = 0; // Reset on success
                            }

                            Thread.sleep(5); // Small delay to spread out requests
                        }
                        successfulThreads.incrementAndGet();
                    } catch (Exception e) {
                        exceptionCount.incrementAndGet();

        // First read
        NbtAddress result = lmhosts.getByName("TESTHOST", mockContext);
        assertNotNull(result);

        // Modify file with a delay to ensure different lastModified time
        Thread.sleep(100);
        try (FileWriter writer = new FileWriter(lmhostsFile)) {
            writer.write("192.168.1.200 NEWHOST\n");
        }

                    logger.debug("Interrupted.", e);
                }
            }
        }
    }

    /**
     * Sets the crawling execution interval.
     * This interval controls the delay between starting new crawler threads
     * and the frequency of status checks during crawling operations.
     *
     * @param crawlingExecutionInterval interval in milliseconds
     */

            } else if (behavior == 1) { // return null
              computeNullCount.incrementAndGet();
              return null;
            } else if (behavior == 2) { // slight delay before returning
              Thread.sleep(5);
              computeCount.incrementAndGet();
              return key;
            } else {
              computeCount.incrementAndGet();
              return key;

    }

    /**
     * Test implementation of IntervalController for testing
     */
    private static class TestIntervalController implements IntervalController {
        @Override
        public void delay(int type) {
        }

        public void delayBeforeProcessing() {
        }

        public void delayAfterProcessing() {
        }

        public void delayAtNoUrlInQueue() {
        }

						sp >>>= 0;
						const msec = (new Date).getTime();
						setInt64(sp + 8, msec / 1000);
						this.mem.setInt32(sp + 16, (msec % 1000) * 1000000, true);
					},

					// func scheduleTimeoutEvent(delay int64) int32
					"runtime.scheduleTimeoutEvent": (sp) => {
						sp >>>= 0;
						const id = this._nextCallbackTimeoutID;
						this._nextCallbackTimeoutID++;
						this._scheduledTimeouts.set(id, setTimeout(

  private void assertEvents(String... events) {
    assertEquals(Arrays.toString(events), stopwatch.readEventsAndClear());
  }

  /**
   * The stopwatch gathers events and presents them as strings. R0.6 means a delay of 0.6 seconds
   * caused by the (R)ateLimiter U1.0 means the (U)ser caused the stopwatch to sleep for a second.
   */
  static class FakeStopwatch extends SleepingStopwatch {
    long instant = 0L;

  private void assertEvents(String... events) {
    assertEquals(Arrays.toString(events), stopwatch.readEventsAndClear());
  }

  /**
   * The stopwatch gathers events and presents them as strings. R0.6 means a delay of 0.6 seconds
   * caused by the (R)ateLimiter U1.0 means the (U)ser caused the stopwatch to sleep for a second.
   */
  static class FakeStopwatch extends SleepingStopwatch {
    long instant = 0L;