public void FlushRequestAndUnloadDirtyTest()
        {
            _testName = MethodInfo.GetCurrentMethod().Name.GetHashCode().ToString();
            Cleanup();

            var seed = new Seed32();

            var dirtyEntities = TestResourceFactory.GetMockClassAObjects(500);

            dirtyEntities.ToList().ForEach(d => d.Id = seed.Increment());

            var db = new DatabaseCache<int, MockClassA>(false, 2048, new BinConverter32());
            db.CacheSize = 400;

            db.FlushRequested += new EventHandler(delegate(object sender, EventArgs e)
            {
                var dbparam = sender as DatabaseCache<int, MockClassA>;
                Assert.AreEqual(dbparam.CacheSize + 1, dbparam.DirtyCount);

                var dirtyItems = dbparam.UnloadDirtyItems();

                Assert.AreEqual(0, dbparam.DirtyCount);
                Assert.AreEqual(0, dbparam.Count);
            });

            foreach (var d in dirtyEntities)
                db.UpdateCache(d.Id, d, true, true);

            db.Sweep();
        }