public void Test_Sliding()
{
MockTimeProvider time = new MockTimeProvider();
time.Now = new DateTime(2000, 1, 1);
SmartCache <int> cache = new SmartCache <int>(5, time);
int item;
cache.Add("1", 1, TimeSpan.FromMinutes(100));
cache.Add("2", 2, TimeSpan.FromMinutes(200));
cache.Add("3", 3, TimeSpan.FromMinutes(300));
time.Now += TimeSpan.FromMinutes(20);
Assert.IsTrue(cache.TryGetValue("1", out item));
Assert.AreEqual(3, cache.ItemCount);
time.Now += TimeSpan.FromMinutes(150);
Assert.IsFalse(cache.TryGetValue("1", out item));
Assert.IsTrue(cache.TryGetValue("2", out item));
Assert.AreEqual(2, cache.ItemCount);
time.Now += TimeSpan.FromDays(1);
Assert.IsFalse(cache.TryGetValue("1", out item));
Assert.IsFalse(cache.TryGetValue("2", out item));
Assert.IsFalse(cache.TryGetValue("3", out item));
Assert.AreEqual(0, cache.ItemCount);
}
public void Test_Expiring()
{
MockTimeProvider time = new MockTimeProvider();
time.Now = new DateTime(2000, 1, 1);
SmartCache<int> cache = new SmartCache<int>(5, time);
int item;
cache.Add("1", 1, time.Now.AddMinutes(100));
cache.Add("2", 2, time.Now.AddMinutes(200));
cache.Add("3", 3, time.Now.AddMinutes(300));
Assert.IsTrue(cache.TryGetValue("1", out item));
Assert.AreEqual(3, cache.ItemCount);
time.Now += TimeSpan.FromMinutes(150);
Assert.IsFalse(cache.TryGetValue("1", out item));
Assert.IsTrue(cache.TryGetValue("2", out item));
Assert.IsTrue(cache.TryGetValue("3", out item));
Assert.AreEqual(2, cache.ItemCount);
time.Now += TimeSpan.FromMinutes(100);
Assert.IsFalse(cache.TryGetValue("1", out item));
Assert.IsFalse(cache.TryGetValue("2", out item));
Assert.IsTrue(cache.TryGetValue("3", out item));
Assert.AreEqual(1, cache.ItemCount);
time.Now += TimeSpan.FromMinutes(100);
Assert.IsFalse(cache.TryGetValue("1", out item));
Assert.IsFalse(cache.TryGetValue("2", out item));
Assert.IsFalse(cache.TryGetValue("3", out item));
Assert.AreEqual(0, cache.ItemCount);
}