public static void sleep(final long millis) {
        if (millis < 1L) {
            return;
        }
        try {
            Thread.sleep(millis);
        } catch (final InterruptedException e) {
            throw new InterruptedRuntimeException(e);
        }
    }

    public static void sleepQuietly(final long millis) {
        if (millis < 1L) {
            return;
        }
        try {

   */
  static void delay(long millis) throws InterruptedException {
    long startTime = System.nanoTime();
    long ns = millis * 1000 * 1000;
    for (; ; ) {
      if (millis > 0L) Thread.sleep(millis);
      else // too short to sleep
      Thread.yield();
      long d = ns - (System.nanoTime() - startTime);
      if (d > 0L) millis = d / (1000 * 1000);
      else break;
    }
  }

    assertEquals(0, ticker.read());
    assertEquals(10, ticker.read());
    assertEquals(20, ticker.read());
  }

  public void testAutoIncrementStep_millis() {
    FakeTicker ticker = new FakeTicker().setAutoIncrementStep(1, TimeUnit.MILLISECONDS);
    assertEquals(0, ticker.read());
    assertEquals(1000000, ticker.read());
    assertEquals(2000000, ticker.read());
  }

    stopwatch.start();
    ticker.advance(999);
    assertEquals(0, stopwatch.elapsed(MICROSECONDS));
    ticker.advance(1);
    assertEquals(1, stopwatch.elapsed(MICROSECONDS));
  }

  public void testElapsed_millis() {
    stopwatch.start();
    ticker.advance(999999);
    assertEquals(0, stopwatch.elapsed(MILLISECONDS));
    ticker.advance(1);
    assertEquals(1, stopwatch.elapsed(MILLISECONDS));
  }

            builder.allRecordCount(searchHits.getTotalHits().value);
            builder.allRecordCountRelation(searchHits.getTotalHits().relation.toString());
            builder.queryTime(searchResponse.getTook().millis());

            if (searchResponse.getTotalShards() != searchResponse.getSuccessfulShards()) {
                builder.partialResults(true);
            }

            // build highlighting fields

    /** The key of the configuration. e.g. false */
    String FRAMEWORK_DEBUG = "framework.debug";

    /** The key of the configuration. e.g. 0 */
    String TIME_ADJUST_TIME_MILLIS = "time.adjust.time.millis";

    /** The key of the configuration. e.g. true */
    String MAIL_SEND_MOCK = "mail.send.mock";

    /** The key of the configuration. e.g. localhost:25 */

    private static final String DELAYED_UNASSIGNED_SHARDS = "delayed_unassigned_shards";
    private static final String TASK_MAX_WAIT_TIME_IN_QUEUE_IN_MILLIS = "task_max_waiting_in_queue_millis";
    private static final String ACTIVE_SHARDS_PERCENT_AS_NUMBER = "active_shards_percent_as_number";
    private static final String ACTIVE_PRIMARY_SHARDS = "active_primary_shards";

        queue[index] = elementData(minChildIndex);
        queue[minChildIndex] = x;
        return minChildIndex;
      }
      return crossOverUp(index, x);
    }

    /**
     * Fills the hole at {@code index} by moving in the least of its grandchildren to this position,
     * then recursively filling the new hole created.
     *

import java.util.DoubleSummaryStatistics;
import junit.framework.TestCase;

/**
 * Tests for {@link Stats}. This tests instances created by both {@link Stats#of} and {@link
 * StatsAccumulator#snapshot}.
 *
 * @author Pete Gillin
 */
public class StatsTest extends TestCase {

  public void testCount() {
    assertThat(EMPTY_STATS_VARARGS.count()).isEqualTo(0);
    assertThat(EMPTY_STATS_ITERABLE.count()).isEqualTo(0);

            defaultMap.put(FessConfig.ENVIRONMENT_TITLE, "Local Development");
            defaultMap.put(FessConfig.FRAMEWORK_DEBUG, "false");
            defaultMap.put(FessConfig.TIME_ADJUST_TIME_MILLIS, "0");
            defaultMap.put(FessConfig.MAIL_SEND_MOCK, "true");
            defaultMap.put(FessConfig.MAIL_SMTP_SERVER_MAIN_HOST_AND_PORT, "localhost:25");