public void TestCachedItemExpiry()
{
ResultsCache<int, int> cache = new ResultsCache<int, int>(new TimeSpan(0,0,1));
cache.InsertResult(5, 25);
System.Threading.Thread.Sleep(600);
cache.InsertResult(6, 36);
System.Threading.Thread.Sleep(600);
int result;
Assert.IsFalse(cache.LookupResult(5, out result));
Assert.IsTrue(cache.LookupResult(6, out result));
Assert.AreEqual(result, 36);
}
public void TestCleansUpOldItems()
{
ResultsCache<int, int> cache = new ResultsCache<int, int>(new TimeSpan(0, 0, 1));
for (int i = 0; i < 100; i++)
cache.InsertResult(i, i * i);
Assert.AreEqual(cache.ItemCount, 100);
// query the cache 100 times, which should trigger the periodic cleanup at some point
int result;
for (int i = 0; i < 100; i++)
cache.LookupResult(i, out result);
//however, since insufficient time has passed, all records still there
Assert.AreEqual(cache.ItemCount, 100);
System.Threading.Thread.Sleep(1100);
for (int i = 0; i < 100; i++)
cache.LookupResult(i, out result);
// this time round the periodic cleanup will dump all records since >1sec passed
Assert.AreEqual(cache.ItemCount, 0);
}
public void TestPairAsQueryType()
{
ResultsCache<KeyValuePair<string, string>, int> cache = new ResultsCache<KeyValuePair<string, string>, int>();
cache.InsertResult(new KeyValuePair<string, string>("one", "two"), 12);
cache.InsertResult(new KeyValuePair<string, string>("two", "two"), 22);
cache.InsertResult(new KeyValuePair<string, string>("one", "one"), 11);
int iRetVal;
Assert.IsTrue(cache.LookupResult(new KeyValuePair<string, string>("one", "two"), out iRetVal));
Assert.AreEqual(iRetVal, 12);
Assert.IsTrue(cache.LookupResult(new KeyValuePair<string, string>("two", "two"), out iRetVal));
Assert.AreEqual(iRetVal, 22);
Assert.IsTrue(cache.LookupResult(new KeyValuePair<string, string>("one", "one"), out iRetVal));
Assert.AreEqual(iRetVal, 11);
Assert.IsFalse(cache.LookupResult(new KeyValuePair<string, string>("two", "one"), out iRetVal));
Assert.AreEqual(0, iRetVal);
}