public void AddMoreThanCapacity()
{
EvictionQueue queue = new EvictionQueue();
queue.Capacity = 1000;
queue.EvictionCount = 100;
for (int i = 0; i < 10000; i++)
{
TradeLike item = new TradeLike(i, 1000 + i, "aaa", DateTime.Now, 456);
CachedObject packedItem = CachedObject.Pack(item);
queue.AddNew(packedItem);
}
Assert.IsTrue(queue.EvictionRequired);
Assert.AreEqual(queue.Count, 10000);
ICollection <CachedObject> evicted = queue.GO();
//should have removed 100 more than ( 10000 - 1000 )
Assert.AreEqual(queue.Count, 900);
Assert.IsFalse(queue.EvictionRequired);
Assert.AreEqual(evicted.Count, 9100);
//asking for eviction when bellow maximum capacity will not remove any item
evicted = queue.GO();
Assert.AreEqual(evicted.Count, 0);
}
public void Remove()
{
EvictionQueue queue = new EvictionQueue();
queue.Capacity = 7;
queue.EvictionCount = 2;
List <CachedObject> allItems = new List <CachedObject>();
for (int i = 0; i < 10; i++)
{
TradeLike item = new TradeLike(i, 1000 + i, "aaa", DateTime.Now, 456);
CachedObject packedItem = CachedObject.Pack(item);
queue.AddNew(packedItem);
allItems.Add(packedItem);
}
//items in queue now: 0 1 2 3 4 5 6 7 8 9
queue.TryRemove(allItems[0]);
queue.TryRemove(allItems[2]);
//items in queue now: 1 3 4 5 6 7 8 9
Assert.IsTrue(queue.EvictionRequired);
IList <CachedObject> evicted = queue.GO();
//items in queue now: 5 6 7 8 9
Assert.AreEqual(evicted.Count, 3);
Assert.AreEqual(evicted[0].PrimaryKey, 1);
Assert.AreEqual(evicted[1].PrimaryKey, 3);
}