public void CopyToIsThreadSafe()
{
var test = new ConcurrentObservableCollection <int>(Concurrent)
{
1, 2, 3
};
var out1 = new int[5];
var out2 = new int[5];
var task1 = Task.Run(() =>
{
for (var i = 0; i < 10; i++)
{
test.CopyTo(out1, 0);
Task.Delay(DelayTime).Wait();
test.CopyTo(out2, 0);
}
});
var task2 = Task.Run(() =>
{
for (var i = 0; i < 10; i++)
{
test.Add(4);
Task.Delay(DelayTime).Wait();
test.Remove(4);
}
});
Task.WaitAll(task1, task2);
}
public void CopyTo_CopyCollectionWhileRemoving()
{
var array = new int[100];
for (int i = 0; i < 100; i++)
{
array[i] = i;
}
var col = new ConcurrentObservableCollection <int>(array);
var task1 = new Task(() =>
{
for (int i = 100; i >= 0; i--)
{
col.Remove(i);
Task.Delay(1).Wait();
}
});
var copy = new int[100];
var task2 = new Task(() => col.CopyTo(copy, 0));
task1.Start();
Task.Delay(10).Wait();
task2.Start();
Task.WaitAll(task1, task2);
copy[2].Should().Be(2);
}
public void CopyTo_CopyCollectionWhileRemoving()
{
var array = new int[100];
for (int i = 0; i < 100; i++)
{
array[i] = i;
}
var col = new ConcurrentObservableCollection <int>(array);
var task1 = new Task(() =>
{
for (int i = 100; i >= 0; i--)
{
col.Remove(i);
Thread.Sleep(1);
}
});
var copy = new int[100];
var task2 = new Task(() => col.CopyTo(copy, 0));
task1.Start();
Thread.Sleep(10);
task2.Start();
Task.WaitAll(new[] { task1, task2 });
Assert.That(copy[2], Is.EqualTo(2));
}
