assertEquals(0, stats.loadExceptionCount());
    assertThat(stats.loadExceptionRate()).isEqualTo(0.0);
    assertEquals(0, stats.loadCount());
    assertEquals(0, stats.totalLoadTime());
    assertThat(stats.averageLoadPenalty()).isEqualTo(0.0);
    assertEquals(0, stats.evictionCount());
  }

  public void testSingle() {
    CacheStats stats = new CacheStats(11, 13, 17, 19, 23, 27);
    assertEquals(24, stats.requestCount());

    assertThat(stats.missRate()).isEqualTo(1.0);
    assertEquals(1, stats.loadCount());
    long totalLoadTime = stats.totalLoadTime();
    assertTrue(totalLoadTime >= 0);
    assertTrue(stats.averageLoadPenalty() >= 0.0);
    assertEquals(0, stats.evictionCount());

    cache.getUnchecked(one);
    stats = cache.stats();
    assertEquals(2, stats.requestCount());
    assertEquals(1, stats.hitCount());

    assertThat(stats.missRate()).isEqualTo(1.0);
    assertEquals(1, stats.loadCount());
    long totalLoadTime = stats.totalLoadTime();
    assertTrue(totalLoadTime >= 0);
    assertTrue(stats.averageLoadPenalty() >= 0.0);
    assertEquals(0, stats.evictionCount());

    cache.getUnchecked(one);
    stats = cache.stats();
    assertEquals(2, stats.requestCount());
    assertEquals(1, stats.hitCount());

   * guaranteed not to throw an exception). If you require specific handling, we recommend
   * implementing your own stats collector.
   */
  public double averageLoadPenalty() {
    long totalLoadCount = saturatedAdd(loadSuccessCount, loadExceptionCount);
    return (totalLoadCount == 0) ? 0.0 : (double) totalLoadTime / totalLoadCount;
  }

  /**

   * guaranteed not to throw an exception). If you require specific handling, we recommend
   * implementing your own stats collector.
   */
  public double averageLoadPenalty() {
    long totalLoadCount = saturatedAdd(loadSuccessCount, loadExceptionCount);
    return (totalLoadCount == 0) ? 0.0 : (double) totalLoadTime / totalLoadCount;
  }

  /**