cache.invalidate(654);

    assertFalse(cache.asMap().containsKey(654));
    assertTrue(cache.asMap().containsKey(2456));
    assertTrue(cache.asMap().containsKey(2));
  }

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

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

    cache.invalidateAll();