public virtual void TestCheck()
{
Random rnd = Random();
ISet <object> jdk = CollectionsHelper.NewSetFromMap(new IdentityHashMap <object, bool?>());
RamUsageEstimator.IdentityHashSet <object> us = new RamUsageEstimator.IdentityHashSet <object>();
int max = 100000;
int threshold = 256;
for (int i = 0; i < max; i++)
{
// some of these will be interned and some will not so there will be collisions.
int?v = rnd.Next(threshold);
bool e1 = jdk.Contains(v);
bool e2 = us.Contains(v);
Assert.AreEqual(e1, e2);
e1 = jdk.Add(v);
e2 = us.Add(v);
Assert.AreEqual(e1, e2);
}
ISet <object> collected = CollectionsHelper.NewSetFromMap(new IdentityHashMap <object, bool?>());
foreach (object o in us)
{
collected.Add(o);
}
Assert.AreEqual(collected, jdk);
}