.testEquals();
  }

  @SuppressWarnings("ReturnValueIgnored")
  public void testMaximumWeight_withWeigher() {
    CacheBuilder<Object, Object> builder = CacheBuilder.from(parse("maximumWeight=9000"));
    builder.weigher(constantWeigher(42)).build(CacheLoader.from(Suppliers.ofInstance(null)));
  }

  @SuppressWarnings("ReturnValueIgnored")
  public void testMaximumWeight_withoutWeigher() {

        .testEquals();
  }

  @SuppressWarnings("ReturnValueIgnored")
  public void testMaximumWeight_withWeigher() {
    CacheBuilder<Object, Object> builder = CacheBuilder.from(parse("maximumWeight=9000"));
    builder.weigher(constantWeigher(42)).build(CacheLoader.from(Suppliers.ofInstance(null)));
  }

  @SuppressWarnings("ReturnValueIgnored")
  public void testMaximumWeight_withoutWeigher() {

    try {
      builder.expireAfterWrite(-1, SECONDS);
      fail();
    } catch (IllegalArgumentException expected) {
    }
  }

  @SuppressWarnings("ReturnValueIgnored")
  public void testTimeToLive_small() {
    CacheBuilder.newBuilder().expireAfterWrite(1, NANOSECONDS).build(identityLoader());
    // well, it didn't blow up.
  }

  public void testTimeToLive_setTwice() {

    assertThrows(
        IllegalArgumentException.class,
        () -> builder.expireAfterWrite(java.time.Duration.ofSeconds(-1)));
  }

  @SuppressWarnings("ReturnValueIgnored")
  public void testTimeToLive_small() {
    CacheBuilder.newBuilder().expireAfterWrite(1, NANOSECONDS).build(identityLoader());
    // well, it didn't blow up.
  }

  public void testTimeToLive_setTwice() {

          return name;
        }
      };
    }

    static final QueryOp<Map<Object, Object>> MAP_GET =
        QueryOp.create("Map.get", Map::get, Math::log);

    @SuppressWarnings("ReturnValueIgnored")
    static final QueryOp<Set<Object>> SET_CONTAINS =
        QueryOp.create("Set.contains", Set::contains, Math::log);

    abstract void apply(T collection, Object query);