assertThat(map.values().removeAll(ImmutableSet.of("bar"))).isTrue();
    assertThat(map).hasSize(1);
  }

  public void testComputeIfAbsent_removalListener() {
    List<RemovalNotification<Object, Object>> notifications = new ArrayList<>();
    RemovalListener<Object, Object> removalListener = notifications::add;
    Cache<Object, Object> cache =

    assertThat(listener.isEmpty()).isTrue();
  }

  static <K, V> void assertNotified(
      QueuingRemovalListener<K, V> listener, K key, V value, RemovalCause cause) {
    RemovalNotification<K, V> notification = listener.remove();
    assertThat(notification.getKey()).isSameInstanceAs(key);
    assertThat(notification.getValue()).isSameInstanceAs(value);

      totalWeight -= weight;
      if (cause.wasEvicted()) {
        statsCounter.recordEviction();
      }
      if (map.removalNotificationQueue != DISCARDING_QUEUE) {
        RemovalNotification<K, V> notification = RemovalNotification.create(key, value, cause);
        map.removalNotificationQueue.offer(notification);
      }
    }

    /**

      totalWeight -= weight;
      if (cause.wasEvicted()) {
        statsCounter.recordEviction();
      }
      if (map.removalNotificationQueue != DISCARDING_QUEUE) {
        RemovalNotification<K, V> notification = RemovalNotification.create(key, value, cause);
        map.removalNotificationQueue.offer(notification);
      }
    }

    /**