public void Clear_Test() { var database = Database.OpenFile(_dbFileName); var dateTime = DateTime.Now; database.Cache.Insert(new CacheItem() { Domain = "d", Hash = Convert.ToBase64String(Guid.NewGuid().ToByteArray()), LastAccessed = dateTime, LastUpdated = dateTime, Size = 50 }); database.Cache.Insert(new CacheItem() { Domain = "d", Hash = Convert.ToBase64String(Guid.NewGuid().ToByteArray()), LastAccessed = dateTime.AddDays(-1), LastUpdated = dateTime.AddDays(-1), Size = 100 }); _store.Clear(); var list = _store.GetDomainSizes(); Assert.AreEqual(0, list.Count); }