assertEquals(Integer.valueOf(20), cache.getIfPresent(30));
    assertEquals(Integer.valueOf(70), cache.getIfPresent(60));
    assertEquals(Integer.valueOf(5), cache.getIfPresent(5));
  }

  public void testInvalidate() {
    Cache<Integer, Integer> cache = CacheBuilder.newBuilder().build();

    cache.put(654, 2675);
    cache.put(2456, 56);
    cache.put(2, 15);

    cache.invalidate(654);