// simultaneous insertion for same key, expect 1 winner
    doParallelCacheOp(count, n -> cache.asMap().computeIfAbsent(key, k -> "value" + n));
    assertThat(cache.size()).isEqualTo(1);
  }

  public void testComputeIfAbsentEviction() {
    // b/80241237

    Cache<String, String> c = CacheBuilder.newBuilder().maximumSize(1).build();

    assertThat(c.asMap().computeIfAbsent("hash-1", k -> "")).isEqualTo("");