public void TestPerformance()
{
var rand = new Random(0);
IList <object> list = new UnorderedRedBlackList <object> {
Enumerable.Repeat <object>(null, 100000)
};
var alist = new List <object>();
alist.AddRange(list);
int ops = 0;
var sw = new Stopwatch();
sw.Start();
for (int i = 0; i < 100; i++)
{
bool insert = list.Count < 5000 || list.Count < 20000 && rand.Next(2) == 0;
int n = rand.Next(1, insert ? list.Count : list.Count / 2);
for (int j = 0; j < n; j++)
{
if (insert)
{
list.Insert(rand.Next(list.Count + 1), null);
}
else
{
list.RemoveAt(rand.Next(list.Count));
}
}
ops += n;
}
long t1 = sw.ElapsedMilliseconds;
rand = new Random(0);
list = alist;
sw.Restart();
for (int i = 0; i < 100; i++)
{
bool insert = list.Count < 5000 || list.Count < 20000 && rand.Next(2) == 0;
int n = rand.Next(1, insert ? list.Count : list.Count / 2);
for (int j = 0; j < n; j++)
{
if (insert)
{
list.Insert(rand.Next(list.Count + 1), null);
}
else
{
list.RemoveAt(rand.Next(list.Count));
}
}
}
long t2 = sw.ElapsedMilliseconds;
Logger.LogMessage("Op Count : {0}", ops);
Logger.LogMessage("Red-Black: {0}ms", t1);
Logger.LogMessage("List : {0}ms", t2);
Assert.IsTrue(t1 * 2 < t2, "Not fast enough. {0}ms vs {1}ms", t1, t2);
}
public void TestList()
{
var rand = new Random(0);
var list = new UnorderedRedBlackList <int> {
Enumerable.Repeat(0, 1000)
};
for (int i = 0; i < 50; i++)
{
bool insert = list.Count < 100 || list.Count < 2000 && rand.Next(2) == 0;
int n = rand.Next(1, insert ? list.Count : list.Count / 2);
for (int j = 0; j < n; j++)
{
if (insert)
{
list.Insert(rand.Next(list.Count + 1), 0);
}
else
{
list.RemoveAt(rand.Next(list.Count));
}
Verify(list);
}
Logger.LogMessage("Size {0}", list.Count);
}
}