public void GenericOnDemandRefreshCache_Defaults_Tests()
{
var timespan = TimeSpan.FromDays(1);
using (var cache = new SpecificBackgroundRefreshCache<string, object>(timespan))
{
Assert.IsNull(cache.Get("non-existant"));
}
}
public void RefreshAction_Populates_MissingCacheValues()
{
var timespan = TimeSpan.FromMilliseconds(50);
var strategy = Expires.Always<int>();
Func<string, int> factory = (key) => int.Parse(key);
var cache = new SpecificBackgroundRefreshCache<string, int>(timespan, strategy, factory);
cache.Add("1", 2);
cache.Add("2", 3);
Assert.AreEqual(2, cache.Get("1"));
Assert.AreEqual(3, cache.Get("2"));
System.Threading.Thread.Sleep(100);
Assert.AreEqual(1, cache.Get("1"));
Assert.AreEqual(2, cache.Get("2"));
Assert.AreEqual(2, cache.Count);
Assert.AreEqual(0, cache.Statistics.Cleanings.Value);
Assert.AreEqual(0, cache.Statistics.Evictions.Value);
Assert.AreEqual(4, cache.Statistics.Requests.Value);
Assert.AreEqual(4, cache.Statistics.Hits.Value);
Assert.AreEqual(4, cache.Statistics.Updates.Value);
Assert.AreEqual(0, cache.Statistics.Misses.Value);
}
public void SpecificBackgroundRefreshCache_Enumeration_Works()
{
var strategy = Expires.Never<object>();
var cache = new SpecificBackgroundRefreshCache<string, object>(
TimeSpan.FromDays(1), strategy, key => (object)int.Parse(key))
{
{ "1", 1 },
{ "2", 2 },
{ "3", 3 },
};
foreach (var item in cache)
{
Assert.AreEqual(item.Value.Value, (int)cache[item.Key]);
}
// just to get 100%
var enumerable = ((System.Collections.IEnumerable)cache).GetEnumerator();
}
