}
        };

    assertThat(cache.getAllPresent(ImmutableList.of(cachedKey, new Object())))
        .containsExactly(cachedKey, cachedValue);
  }

  public void testInvalidateAll() {
    List<Object> invalidated = new ArrayList<>();
    Cache<Integer, Integer> cache =
        new AbstractCache<Integer, Integer>() {
          @Override
          public Integer getIfPresent(Object key) {