public ScavengedExpirableCacheStore(CacheOptions cacheOptions)
{
Guard.Assert(cacheOptions.MaxCacheItemCount > 0, "invalid cache item count");
Guard.Assert(cacheOptions.ScavengePercentage > 0, "invalid scavenge percentage");
_CacheOptions = cacheOptions;
_ExpirableCacheStore = new ExpirableCacheStore(_CacheOptions);
}
public void TestCustomExpiration()
{
ExpirableCacheStore expirableCacheStore = new ExpirableCacheStore(new CacheOptions());
CacheItem cacheItem = new CacheItem("cacheItem", null, 0, new IExpirationSpecifier[] { new TestExpirationSpecifier() });
expirableCacheStore.Set(cacheItem);
Assert.IsTrue(Object.ReferenceEquals(cacheItem, expirableCacheStore.Get(cacheItem.Key, false)), "unable to get object");
((TestExpirationSpecifier)cacheItem.ExpirationSpecifierList[0]).Expired = true;
Assert.IsNull(expirableCacheStore.Get(cacheItem.Key, false), "unable to expire object");
}
public void TestAbsoluteExpiration()
{
ExpirableCacheStore expirableCacheStore = new ExpirableCacheStore(new CacheOptions());
CacheItem cacheItem = new CacheItem("cacheItem", null, 0, new IExpirationSpecifier[] { new AbsoluteTimeExpirationSpecifier(DateTime.UtcNow.AddSeconds(1)) });
expirableCacheStore.Set(cacheItem);
Assert.IsTrue(Object.ReferenceEquals(cacheItem, expirableCacheStore.Get(cacheItem.Key, false)), "unable to get object");
Thread.Sleep(300);
Assert.IsTrue(Object.ReferenceEquals(cacheItem, expirableCacheStore.Get(cacheItem.Key, false)), "unable to get object");
Thread.Sleep(900);
Assert.IsNull(expirableCacheStore.Get(cacheItem.Key, false), "unable to expire object");
}
public void TestSlidingExpiration()
{
ExpirableCacheStore expirableCacheStore = new ExpirableCacheStore(new CacheOptions());
CacheItem cacheItem = new CacheItem("cacheItem", null, 0, new IExpirationSpecifier[] { new SlidingWindowExpirationSpecifier(TimeSpan.FromSeconds(1)) });
expirableCacheStore.Set(cacheItem);
Assert.IsTrue(Object.ReferenceEquals(cacheItem, expirableCacheStore.Get(cacheItem.Key, false)), "unable to get object");
Thread.Sleep(300);
Assert.IsTrue(Object.ReferenceEquals(cacheItem, expirableCacheStore.Get(cacheItem.Key, false)), "unable to get object");
Thread.Sleep(900);
Assert.IsTrue(Object.ReferenceEquals(cacheItem, expirableCacheStore.Get(cacheItem.Key, false)), "unable to get object");
Thread.Sleep(1100);
Assert.IsNull(expirableCacheStore.Get(cacheItem.Key, false), "unable to expire object");
}
public void TestExpirationPolling()
{
ExpirableCacheStore expirableCacheStore = new ExpirableCacheStore(new CacheOptions { ExpirationPollInterval = TimeSpan.FromSeconds(1) });
CacheItem cacheItem = new CacheItem("cacheItem", null, 0, new IExpirationSpecifier[] { new TestExpirationSpecifier() });
expirableCacheStore.Set(cacheItem);
Assert.AreEqual(expirableCacheStore.CacheItemCount, 1, "count mismatch");
Thread.Sleep(1100);
Assert.AreEqual(expirableCacheStore.CacheItemCount, 1, "count mismatch");
((TestExpirationSpecifier)cacheItem.ExpirationSpecifierList[0]).Expired = true;
Thread.Sleep(1100);
Assert.AreEqual(expirableCacheStore.CacheItemCount, 0, "count mismatch");
}