public void Setup_WithRandomizer()
{
var now = DateTime.Now;
var scp = new SlidingCachePolicy {
Duration = new TimeSpan(0, 1, 0), RandomizerOffset = new TimeSpan(0, 0, 30)
};
scp.Reset();
Assert.IsTrue(scp.Expiry.HasValue);
Assert.IsTrue(scp.Expiry.Value > now.AddSeconds(60) && scp.Expiry.Value < now.AddSeconds(90));
}
public void SlideWithMaxGap()
{
var scp = new SlidingCachePolicy {
Duration = new TimeSpan(0, 0, 1), MaxDuration = new TimeSpan(0, 0, 2)
};
scp.Reset();
Assert.IsFalse(((ICachePolicy)scp).HasExpired());
Thread.Sleep(350);
Assert.IsFalse(((ICachePolicy)scp).HasExpired());
Thread.Sleep(1100);
Assert.IsTrue(((ICachePolicy)scp).HasExpired());
Thread.Sleep(450);
Assert.IsTrue(((ICachePolicy)scp).HasExpired());
}
public void Slide()
{
var scp = new SlidingCachePolicy {
Duration = new TimeSpan(0, 0, 1)
};
scp.Reset();
Assert.IsFalse(((ICachePolicy)scp).HasExpired());
Thread.Sleep(500);
Assert.IsFalse(((ICachePolicy)scp).HasExpired());
Thread.Sleep(500);
Assert.IsFalse(((ICachePolicy)scp).HasExpired());
Thread.Sleep(500);
Assert.IsFalse(((ICachePolicy)scp).HasExpired());
Thread.Sleep(1500);
Assert.IsTrue(scp.IsExpired);
}
public void Exercise_SlidingCache()
{
UnitTest.Caching.Policy.CachePolicyManagerTest.TestSetUp();
var coll = new TestRdCollection
{
new TestRd {
Id = 1, Code = "A"
},
new TestRd {
Id = 2, Code = "B"
}
};
var policy = new SlidingCachePolicy
{
Duration = new TimeSpan(0, 0, 3),
MaxDuration = new TimeSpan(0, 0, 4)
};
int dataRequests = 0;
var rdc = new ReferenceDataMultiTenantCache <TestRdCollection, TestRd>(() => { dataRequests++; return(GetData()); });
CachePolicyManager.Current.Set(rdc.PolicyKey, policy);
ExecutionContext.Current.TenantId = GetGuid(08);
// Nothing loaded.
Assert.AreEqual(0, dataRequests);
Assert.AreEqual(0, rdc.Count);
Assert.IsTrue(rdc.IsExpired);
// Now loaded.
var c = rdc.GetCollection();
Assert.AreEqual(1, dataRequests);
Assert.IsNotNull(c);
Assert.AreEqual(2, c.ActiveList.Count);
Assert.AreEqual(1, rdc.Count);
Assert.IsFalse(rdc.IsExpired);
// Multiple cycles to test Max cache
for (int cycle = 0; cycle < 3; cycle++)
{
// Running till max cache expires.
while (!rdc.IsExpired)
{
c = rdc.GetCollection();
Assert.AreEqual(1 + cycle, dataRequests);
Assert.IsNotNull(c);
Assert.AreEqual(2, c.ActiveList.Count);
Assert.AreEqual(1, rdc.Count);
Assert.IsFalse(rdc.IsExpired);
System.Threading.Thread.Sleep((int)Math.Floor(policy.Duration.TotalMilliseconds / 2));
}
// reload collection cached.
c = rdc.GetCollection();
Assert.AreEqual(2 + cycle, dataRequests);
Assert.IsNotNull(c);
Assert.AreEqual(2, c.ActiveList.Count);
Assert.AreEqual(1, rdc.Count);
Assert.IsFalse(rdc.IsExpired);
// New collection cached.
c = rdc.GetCollection();
Assert.AreEqual(2 + cycle, dataRequests);
Assert.IsNotNull(c);
Assert.AreEqual(2, c.ActiveList.Count);
Assert.AreEqual(1, rdc.Count);
Assert.IsFalse(rdc.IsExpired);
}
}
