LocalCache<?, ?> map = CacheTesting.toLocalCache(cache);

    assertThat(map.segments).hasLength(4);
    assertEquals(2, map.segments[0].table.length());
    assertEquals(2, map.segments[1].table.length());
    assertEquals(2, map.segments[2].table.length());
    assertEquals(2, map.segments[3].table.length());
  }

  @GwtIncompatible // CacheTesting
  public void testInitialCapacity_smallest() {

     */
    long sum = 0L;
    Segment<K, V, E, S>[] segments = this.segments;
    for (int i = 0; i < segments.length; ++i) {
      if (segments[i].count != 0) {
        return false;
      }
      sum += segments[i].modCount;
    }

    if (sum != 0L) { // recheck unless no modifications
      for (int i = 0; i < segments.length; ++i) {
        if (segments[i].count != 0) {
          return false;
        }

        final ProjectBuildList segments = buildList.getByTaskSegment(taskSegments.get(0));
        assertEquals(3, taskSegments.size(), "Stub data contains 3 segments");
        assertEquals(6, segments.size(), "Stub data contains 6 items");
        final ProjectSegment build = segments.get(0);
        assertNotNull(build);

        for (ProjectSegment segment : segments) {
            assertSame(session, segment.getSession());

    assertEquals(4, map.concurrencyLevel);

    // concurrency level
    assertThat(map.segments).hasLength(4);
    // initial capacity / concurrency level
    assertEquals(16 / map.segments.length, map.segments[0].table.length());
  }

  public void testSetKeyEquivalence() {
    Equivalence<Object> testEquivalence =
        new Equivalence<Object>() {

    assertEquals(4, map.concurrencyLevel);

    // concurrency level
    assertThat(map.segments).hasLength(4);
    // initial capacity / concurrency level
    assertEquals(16 / map.segments.length, map.segments[0].table.length());
  }

  public void testSetKeyEquivalence() {
    Equivalence<Object> testEquivalence =
        new Equivalence<Object>() {

  @SuppressWarnings("GuardedBy")
  @BeforeExperiment
  void setUp() {
    LocalCache<Object, Object> cache =
        new LocalCache<>(CacheBuilder.newBuilder().concurrencyLevel(1), null);
    segment = cache.segments[0];
    chain = null;
    for (int i = 0; i < length; i++) {
      Object key = new Object();
      // TODO(b/145386688): This access should be guarded by 'this.segment', which is not currently
      // held

      new PercentEscaper(URL_FORM_PARAMETER_OTHER_SAFE_CHARS, true);

  /**
   * Returns an {@link Escaper} instance that escapes strings so they can be safely included in <a
   * href="https://goo.gl/m2MIf0">URL path segments</a>. The returned escaper escapes all non-ASCII
   * characters, even though <a href="https://goo.gl/e7E0In">many of these are accepted in modern

                .maximumSize(maxSize));
    long totalCapacity = 0;
    assertTrue(
        "segments=" + map.segments.length + ", maxSize=" + maxSize,
        map.segments.length <= Math.max(1, maxSize / 10));
    for (int i = 0; i < map.segments.length; i++) {
      totalCapacity += map.segments[i].maxSegmentWeight;
    }
    assertTrue("totalCapacity=" + totalCapacity + ", maxSize=" + maxSize, totalCapacity == maxSize);

                .maximumSize(maxSize));
    long totalCapacity = 0;
    assertTrue(
        "segments=" + map.segments.length + ", maxSize=" + maxSize,
        map.segments.length <= Math.max(1, maxSize / 10));
    for (int i = 0; i < map.segments.length; i++) {
      totalCapacity += map.segments[i].maxSegmentWeight;
    }
    assertTrue("totalCapacity=" + totalCapacity + ", maxSize=" + maxSize, totalCapacity == maxSize);

 *
 * @author Charles Fry
 */
public class LoadingCacheSingleThreadBenchmark {
  @Param({"1000", "2000"})
  int maximumSize;

  @Param("5000")
  int distinctKeys;

  @Param("4")
  int segments;

  // 1 means uniform likelihood of keys; higher means some keys are more popular
  // tweak this to control hit rate
  @Param("2.5")
  double concentration;

  Random random = new Random();