CacheBuilder.newBuilder().removalListener(countingRemovalListener()).build(loader);

    assertThat(cache.getUnchecked("one")).isEqualTo(1);
    assertThat(cache.size()).isEqualTo(1);
  }

  public void testInitialCapacity_negative() {
    CacheBuilder<Object, Object> builder = CacheBuilder.newBuilder();
    assertThrows(IllegalArgumentException.class, () -> builder.initialCapacity(-1));
  }

  public void testInitialCapacity_setTwice() {