public void AddRemoveAndCount()
{
for (int i = 0; i < 10000; i++)
{
var random = new Random();
var removed = 0;
var subject = new ConcurrentLinkedList <int>();
var toAdd = random.Next(0, 1000);
var toRemove = random.Next(0, 1000);
var actions = new List <Action>();
for (int j = 0; j < toAdd; j++)
{
actions.Add(() => subject.Add(0));
}
for (int j = 0; j < toRemove; j++)
{
actions.Add(() =>
{
if (subject.RemoveStart())
{
Interlocked.Increment(ref removed);
}
});
}
Parallel.Invoke(actions.OrderBy(x => random.NextDouble()).ToArray());
Assert.Equal(toAdd - removed, subject.Count);
Assert.Equal(toAdd - removed, subject.Count());
}
}