public void ClearsWhenLarge()
{
var dict = new SimpleLruDictionary <object, object>(10, TimeSpan.FromMilliseconds(100));
for (int i = 0; i < 25; i++)
{
dict.GetOrCreate(i, _ => i);
}
GC.Collect(2, GCCollectionMode.Forced);
Assert.IsTrue(dict.TryGetValue(24, out _));
Assert.IsFalse(dict.TryGetValue(1, out _));
}
public void ClearsOnTimeout()
{
var dict = new SimpleLruDictionary <object, object>(10, TimeSpan.FromMilliseconds(1));
for (int i = 0; i < 20; i++)
{
dict.GetOrCreate(i, _ => new object());
}
Thread.Sleep(30); // let's give the timer some margin so this test does not fail randomly
GC.Collect(2, GCCollectionMode.Forced);
Assert.IsFalse(dict.TryGetValue(1, out _));
}
public void KeepsOldValue()
{
var dict = new SimpleLruDictionary <object, object>(100, TimeSpan.FromMilliseconds(100));
var a = dict.GetOrCreate("a", _ => 1);
Assert.AreEqual(1, a);
var b = dict.GetOrCreate("b", _ => 2);
Assert.AreEqual(2, b);
var c = dict.GetOrCreate("a", _ => "value");
Assert.AreEqual(1, c);
}