assertTrue(cache.asMap().values().contains(22));
    assertTrue(cache.asMap().values().contains(10));
    assertFalse(cache.asMap().values().contains(20));
  }

  public void testAsMapKeySet() {
    Cache<Integer, Integer> cache =
        CacheBuilder.newBuilder().expireAfterWrite(1000, MILLISECONDS).ticker(fakeTicker).build();

    cache.put(10, 20);
    fakeTicker.advance(500, MILLISECONDS);