assertThat(cache.getIfPresent(10)).isNull();
  }

  @SuppressWarnings("ContainsEntryAfterGetInteger") // we are testing our implementation of Map.get
  @Test
  public void mapMethods() {
    Cache<Integer, Integer> cache = CacheBuilder.newBuilder().build();

    ConcurrentMap<Integer, Integer> asMap = cache.asMap();

    cache.put(10, 100);
    cache.put(2, 52);