}

  public void testEviction_weightedLru() {
    // test weighted lru within a single segment
    IdentityLoader<Integer> loader = identityLoader();
    LoadingCache<Integer, Integer> cache =
        CacheBuilder.newBuilder()
            .concurrencyLevel(1)
            .maximumWeight(45)
            .weigher(intKeyWeigher())
            .build(loader);
    CacheTesting.warmUp(cache, 0, 10);

    checkArgument(maximumSize >= 0, "maximum size must not be negative");
    this.maximumSize = maximumSize;
    return this;
  }

  /**
   * Specifies the maximum weight of entries the cache may contain. Weight is determined using the
   * {@link Weigher} specified with {@link #weigher}, and use of this method requires a

  }

  public void testEviction_weightedLru() {
    // test weighted lru within a single segment
    IdentityLoader<Integer> loader = identityLoader();
    LoadingCache<Integer, Integer> cache =
        CacheBuilder.newBuilder()
            .concurrencyLevel(1)
            .maximumWeight(45)
            .weigher(intKeyWeigher())
            .build(loader);
    CacheTesting.warmUp(cache, 0, 10);

    checkArgument(maximumSize >= 0, "maximum size must not be negative");
    this.maximumSize = maximumSize;
    return this;
  }

  /**
   * Specifies the maximum weight of entries the cache may contain. Weight is determined using the
   * {@link Weigher} specified with {@link #weigher}, and use of this method requires a

        .that(totalCapacity)
        .isEqualTo(maxSize);
  }

  public void testSetWeigher() {
    Weigher<Object, Object> testWeigher = (key, value) -> 42;
    LocalCache<Object, Object> map =
        makeLocalCache(createCacheBuilder().maximumWeight(1).weigher(testWeigher));
    assertThat(map.weigher).isSameInstanceAs(testWeigher);
  }

  public void testSetWeakKeys() {

        .that(totalCapacity)
        .isEqualTo(maxSize);
  }

  public void testSetWeigher() {
    Weigher<Object, Object> testWeigher = (key, value) -> 42;
    LocalCache<Object, Object> map =
        makeLocalCache(createCacheBuilder().maximumWeight(1).weigher(testWeigher));
    assertThat(map.weigher).isSameInstanceAs(testWeigher);
  }

  public void testSetWeakKeys() {

  }

  @J2ktIncompatible
  @GwtIncompatible // weigher
  public void testWeigher_withoutMaximumWeight() {
    CacheBuilder<Object, Object> builder = CacheBuilder.newBuilder().weigher(constantWeigher(42));
    assertThrows(IllegalStateException.class, () -> builder.build(identityLoader()));
  }

  @J2ktIncompatible
  @GwtIncompatible // weigher
  public void testWeigher_withMaximumSize() {
    assertThrows(

  }

  @J2ktIncompatible
  @GwtIncompatible // weigher
  public void testWeigher_withoutMaximumWeight() {
    CacheBuilder<Object, Object> builder = CacheBuilder.newBuilder().weigher(constantWeigher(42));
    assertThrows(IllegalStateException.class, () -> builder.build(identityLoader()));
  }

  @J2ktIncompatible
  @GwtIncompatible // weigher
  public void testWeigher_withMaximumSize() {
    assertThrows(

      ValueReference<K, V> previous = entry.getValueReference();
      int weight = map.weigher.weigh(key, value);
      checkState(weight >= 0, "Weights must be non-negative");

      ValueReference<K, V> valueReference =
          map.valueStrength.referenceValue(this, entry, value, weight);
      entry.setValueReference(valueReference);
      recordWrite(entry, weight, now);
      previous.notifyNewValue(value);
    }

      ValueReference<K, V> previous = entry.getValueReference();
      int weight = map.weigher.weigh(key, value);
      checkState(weight >= 0, "Weights must be non-negative");

      ValueReference<K, V> valueReference =
          map.valueStrength.referenceValue(this, entry, value, weight);
      entry.setValueReference(valueReference);
      recordWrite(entry, weight, now);
      previous.notifyNewValue(value);
    }