public void TestRemove()
{
var bag = new ConcurrentArrayBag <TestClass>(100);
var threadCount = 8;
var iterations = 10000;
var threads = new Thread[threadCount];
var removed = new HashSet <int> [threadCount];
for (var i = 0; i < threadCount; i++)
{
var pos = i;
removed[i] = new HashSet <int>(100);
threads[i] = new Thread(() =>
{
var rand = new Random();
for (var j = 0; j < iterations; j++)
{
if (pos % threadCount == 0)
{
bag.Add(new TestClass(j));
}
if (rand.NextDouble() < 0.05)
{
var removeValue = rand.Next(0, j);
bag.Remove(v => v.MyInt == removeValue);
removed[pos].Add(removeValue);
}
}
});
}
foreach (var thread in threads)
{
thread.Start();
}
foreach (var thread in threads)
{
thread.Join();
}
var hashSet = new HashSet <int>(bag.Select(val => val.MyInt));
var removedSet = new HashSet <int>();
foreach (var set in removed)
{
foreach (var i in set)
{
removedSet.Add(i);
}
}
for (int i = 0; i < iterations; i++)
{
Assert.IsTrue(removedSet.Contains(i) || hashSet.Contains(i));
}
}
public void AddTest()
{
var bag = new ConcurrentArrayBag <TestClass>(2);
for (var i = 0; i < 100; i++)
{
bag.Add(new TestClass(i));
}
var hashSet = new HashSet <int>(bag.Select(val => val.MyInt));
for (int i = 0; i < 100; i++)
{
Assert.IsTrue(hashSet.Contains(i));
}
}
public void ConcurrentTest()
{
var bag = new ConcurrentArrayBag <TestClass>(10000);
var threadCount = 20;
var iterations = 100000;
var threads = new Thread[threadCount];
for (var i = 0; i < threadCount; i++)
{
threads[i] = new Thread(() =>
{
for (var j = 0; j < iterations; j++)
{
if (i % threadCount == 0)
{
bag.Add(new TestClass(j));
}
}
});
}
foreach (var thread in threads)
{
thread.Start();
}
foreach (var thread in threads)
{
thread.Join();
}
var hashSet = new HashSet <int>(bag.Select(val => val.MyInt));
for (int i = 0; i < iterations; i++)
{
Assert.IsTrue(hashSet.Contains(i));
}
}