assertEquals(17 + 19, stats.loadCount());
    assertEquals(23, stats.totalLoadTime());
    assertEquals(23.0 / (17 + 19), stats.averageLoadPenalty());
    assertEquals(27, stats.evictionCount());
  }

  public void testMinus() {
    CacheStats one = new CacheStats(11, 13, 17, 19, 23, 27);
    CacheStats two = new CacheStats(53, 47, 43, 41, 37, 31);

    CacheStats diff = two.minus(one);

    }
    for (int i = 0; i < 17; i++) {
      counter.recordLoadException(i);
    }
    for (int i = 0; i < 23; i++) {
      counter.recordMisses(1);
    }
    for (int i = 0; i < 27; i++) {
      counter.recordEviction();
    }
    CacheStats stats = counter.snapshot();
    int requestCount = 11 + 23;
    assertEquals(requestCount, stats.requestCount());
    assertEquals(11, stats.hitCount());

    }
    for (int i = 0; i < 17; i++) {
      counter.recordLoadException(i);
    }
    for (int i = 0; i < 23; i++) {
      counter.recordMisses(1);
    }
    for (int i = 0; i < 27; i++) {
      counter.recordEviction();
    }
    CacheStats stats = counter.snapshot();
    int requestCount = 11 + 23;
    assertEquals(requestCount, stats.requestCount());
    assertEquals(11, stats.hitCount());

    SettableFuture<Integer> future = SettableFuture.create();
    assertTrue(future.set(42));
    // Later attempts to set the future should return false.
    assertFalse(future.set(23));
    assertFalse(future.setException(new Exception("bar")));
    assertFalse(future.setFuture(SettableFuture.<Integer>create()));
    // Check that the future has been set properly.
    assertTrue(future.isDone());

    SettableFuture<Integer> future = SettableFuture.create();
    assertTrue(future.set(42));
    // Later attempts to set the future should return false.
    assertFalse(future.set(23));
    assertFalse(future.setException(new Exception("bar")));
    assertFalse(future.setFuture(SettableFuture.<Integer>create()));
    // Check that the future has been set properly.
    assertTrue(future.isDone());

    assertEquals(17 + 19, stats.loadCount());
    assertEquals(23, stats.totalLoadTime());
    assertEquals(23.0 / (17 + 19), stats.averageLoadPenalty());
    assertEquals(27, stats.evictionCount());
  }

  public void testMinus() {
    CacheStats one = new CacheStats(11, 13, 17, 19, 23, 27);
    CacheStats two = new CacheStats(53, 47, 43, 41, 37, 31);

    CacheStats diff = two.minus(one);

import java.util.Set;

/**
 * Test iteration speed at various size for {@link Set} instances.
 *
 * @author Christopher Swenson
 */
public class SetIterationBenchmark {
  @Param({
    "3", "6", "11", "23", "45", "91", "181", "362", "724", "1448", "2896", "5793", "11585", "23170",
    "46341", "92682", "185364", "370728", "741455", "1482910", "2965821", "5931642"
  })
  private int size;

  // "" means no fixed seed

 * {@code Set} implementations.
 *
 * @author Christopher Swenson
 */
public class SetCreationBenchmark {
  @Param({
    "3", "6", "11", "23", "45", "91", "181", "362", "724", "1448", "2896", "5793", "11585", "23170",
    "46341", "92682", "185364", "370728", "741455", "1482910", "2965821", "5931642"
  })
  private int size;

  // "" means no fixed seed

import java.util.Set;

/**
 * Test iteration speed at various size for {@link Set} instances.
 *
 * @author Christopher Swenson
 */
public class SetIterationBenchmark {
  @Param({
    "3", "6", "11", "23", "45", "91", "181", "362", "724", "1448", "2896", "5793", "11585", "23170",
    "46341", "92682", "185364", "370728", "741455", "1482910", "2965821", "5931642"
  })
  private int size;

  // "" means no fixed seed

    long part4 = load64(bytes, offset + 24);

    seedA += part1;
    seedB = rotateRight(seedB + seedA + part4, 51);
    long c = seedA;
    seedA += part2;
    seedA += part3;
    seedB += rotateRight(seedA, 23);
    output[0] = seedA + part4;
    output[1] = seedB + c;
  }

  /*
   * Compute an 8-byte hash of a byte array of length greater than 64 bytes.
   */