public void CacheAddOrUpdateAppliesUpdateToItemsWhenMultiThreaded()
{
const int expectedCount = 10000;
using (var cache = new TimeToLiveCache <long, List <TimeToLiveTestItem> >())
{
var options = new ParallelOptions
{
MaxDegreeOfParallelism = 64
};
Parallel.For(0, 10000, options, i =>
{
var cacheItem = new TimeToLiveTestItem {
Id = 1
};
Func <long, List <TimeToLiveTestItem>, List <TimeToLiveTestItem> > updater =
(k, items) =>
{
items.Add(cacheItem);
return(items);
};
cache.AddOrUpdate(1, new List <TimeToLiveTestItem> {
cacheItem
}, updater);
});
var result = cache[1];
Assert.AreEqual(expectedCount, result.Count);
}
}
public void CacheAddOrUpdateThrowsIfTimeoutIsNegative()
{
using (var cache = new TimeToLiveCache <long, object>())
{
var item = new TimeToLiveTestItem {
Id = 1
};
Assert.Throws <ArgumentOutOfRangeException>(() => cache.AddOrUpdate(item.Id, item, -10));
}
}
public void CacheAddsItem()
{
using (var cache = new TimeToLiveCache <long, object>(5000))
{
var item = new TimeToLiveTestItem {
Id = 1
};
cache.AddOrUpdate(item.Id, item);
Assert.IsTrue(cache.Contains(item.Id));
}
}
public void CacheEvictsItemIfTieoutReached()
{
using (var cache = new TimeToLiveCache <long, object>())
{
var item = new TimeToLiveTestItem {
Id = 1
};
cache.AddOrUpdate(item.Id, item, 100);
Thread.Sleep(500);
Assert.IsFalse(cache.Contains(item.Id));
}
}
public void CacheRestartsTimerForItem()
{
using (var cache = new TimeToLiveCache <long, object>())
{
var item = new TimeToLiveTestItem {
Id = 1
};
cache.AddOrUpdate(item.Id, item, 500);
cache.AddOrUpdate(item.Id, item, 2000, true);
Thread.Sleep(500);
Assert.IsTrue(cache.Contains(item.Id));
}
}
public void CacheDoesNotEvictItemBeforeTimeoutReached()
{
const int defaultTimeout = 500;
const int customTimeout = 30000;
using (var cache = new TimeToLiveCache <long, object>(defaultTimeout))
{
var item = new TimeToLiveTestItem {
Id = 1
};
cache.AddOrUpdate(item.Id, item, customTimeout);
Thread.Sleep(defaultTimeout);
Assert.IsTrue(cache.Contains(item.Id));
}
}
public void CacheUpdatesItem()
{
const string expectedName = "bar";
using (var cache = new TimeToLiveCache <long, object>())
{
var item = new TimeToLiveTestItem {
Id = 1, Name = "foo"
};
cache.AddOrUpdate(item.Id, item);
item = new TimeToLiveTestItem {
Id = 1, Name = "bar"
};
cache.AddOrUpdate(item.Id, item);
var result = cache[item.Id] as TimeToLiveTestItem;
Assert.AreEqual(expectedName, result.Name);
}
}