assertMean(0, 0, 0);
    assertMean(-1, -1, -1);
    assertMean(Long.MIN_VALUE, Long.MIN_VALUE, Long.MIN_VALUE);
    assertMean(Long.MAX_VALUE, Long.MAX_VALUE, Long.MAX_VALUE);

    // Exhaustive checks
    for (long x : ALL_LONG_CANDIDATES) {
      for (long y : ALL_LONG_CANDIDATES) {
        assertMean(x, y);
      }
    }
  }

  /** Helper method that asserts the arithmetic mean of x and y is equal to the expectedMean. */

        .isEqualTo(1);
    assertThat(
            Longs.indexOf(
                new long[] {(long) 2, (long) 3, (long) 2, (long) 3, (long) 4, (long) 2, (long) 3},
                new long[] {(long) 2, (long) 3, (long) 4}))
        .isEqualTo(2);
    assertThat(
            Longs.indexOf(
                new long[] {(long) 2, (long) 2, (long) 3, (long) 4, (long) 2, (long) 3, (long) 4},

        .isEqualTo(1);
    assertThat(
            Longs.indexOf(
                new long[] {(long) 2, (long) 3, (long) 2, (long) 3, (long) 4, (long) 2, (long) 3},
                new long[] {(long) 2, (long) 3, (long) 4}))
        .isEqualTo(2);
    assertThat(
            Longs.indexOf(
                new long[] {(long) 2, (long) 2, (long) 3, (long) 4, (long) 2, (long) 3, (long) 4},

      buf[((x1 << 16) + (x2 << 8) + x3) % bufLen] ^= i % 256;
    }
    assertEquals(0x7a1d67c50ec7e167L, h);
  }

  private static long remix(long h) {
    h ^= h >>> 41;
    h *= 949921979;
    return h;
  }

  private static byte getChar(long h) {
    return (byte) ('a' + ((h & 0xfffff) % 26));
  }

  public void testCheckedCast() {
    for (long value : UNSIGNED_INTS) {
      assertThat(UnsignedInts.toLong(UnsignedInts.checkedCast(value))).isEqualTo(value);
    }
    assertCastFails(1L << 32);
    assertCastFails(-1L);
    assertCastFails(Long.MAX_VALUE);
    assertCastFails(Long.MIN_VALUE);
  }

  private static void assertCastFails(long value) {
    try {
      UnsignedInts.checkedCast(value);

        new CacheStats(
            Long.MAX_VALUE,
            Long.MAX_VALUE,
            Long.MAX_VALUE,
            Long.MAX_VALUE,
            Long.MAX_VALUE,
            Long.MAX_VALUE);
    CacheStats smallCacheStats = new CacheStats(1, 1, 1, 1, 1, 1);

    CacheStats sum = smallCacheStats.plus(maxCacheStats);
    assertEquals(Long.MAX_VALUE, sum.requestCount());

import junit.framework.TestCase;

/** Tests for default methods of the interface. */
public class ListeningScheduledExecutorServiceTest extends TestCase {

  private Runnable recordedCommand;
  private long recordedDelay;
  private long recordedInterval;
  private TimeUnit recordedTimeUnit;

  private final ListeningScheduledExecutorService executorService = new FakeExecutorService();

  public void testScheduleRunnable() throws Exception {

    protected long requestInterval = 500;

    public void sendDocuments(final SearchEngineClient searchEngineClient, final DocList docList) {
        if (docList.isEmpty()) {
            return;
        }
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        final SystemHelper systemHelper = ComponentUtil.getSystemHelper();
        final long execTime = systemHelper.getCurrentTimeAsLong();

        return this;
    }

    public void setGidNumber_Equal(Long gidNumber) {
        setGidNumber_Term(gidNumber, null);
    }

    public void setGidNumber_Equal(Long gidNumber, ConditionOptionCall<TermQueryBuilder> opLambda) {
        setGidNumber_Term(gidNumber, opLambda);
    }

    public void setGidNumber_Term(Long gidNumber) {
        setGidNumber_Term(gidNumber, null);
    }

  @VisibleForTesting @CheckForNull Long maximumSize;
  @VisibleForTesting @CheckForNull Long maximumWeight;
  @VisibleForTesting @CheckForNull Integer concurrencyLevel;
  @VisibleForTesting @CheckForNull Strength keyStrength;
  @VisibleForTesting @CheckForNull Strength valueStrength;
  @VisibleForTesting @CheckForNull Boolean recordStats;
  @VisibleForTesting long writeExpirationDuration;