public void LRUCache_GetHitStats()
{
LRUCache <string, string> cache = new LRUCache <string, string>();
int cHits, cMisses;
string found;
cache.Add("a", "a");
cache.Add("b", "b");
cache.Add("c", "c");
cache.GetHitStats(out cHits, out cMisses);
Assert.AreEqual(0, cHits);
Assert.AreEqual(0, cMisses);
cache.TryGetValue("a", out found);
cache.TryGetValue("b", out found);
cache.TryGetValue("c", out found);
cache.TryGetValue("d", out found);
cache.GetHitStats(out cHits, out cMisses);
Assert.AreEqual(3, cHits);
Assert.AreEqual(1, cMisses);
cache.GetHitStats(out cHits, out cMisses);
Assert.AreEqual(0, cHits);
Assert.AreEqual(0, cMisses);
found = cache["a"];
found = cache["b"];
try
{
found = cache["d"];
}
catch
{
// Ignore
}
cache.GetHitStats(out cHits, out cMisses);
Assert.AreEqual(2, cHits);
Assert.AreEqual(1, cMisses);
}