public void TestExpireAfterWriteSet()
{
CacheBuilder <int, string> cacheBuilder = CacheBuilder <int, string> .NewBuilder();
TimeSpan expireAfterWriteSeconds = TimeSpan.FromSeconds(ThreadLocalRandom.Current.Next());
cacheBuilder.WithExpireAfterAccess(expireAfterWriteSeconds);
Assert.AreEqual((long)Math.Round(expireAfterWriteSeconds.TotalMilliseconds),
cacheBuilder.ExpireAfterAccessMilliseconds);
}