private void EnqueueChecksumUpdate()
{
// event will raised sequencially. no concurrency on this handler
if (_workQueue.TryPeek(out _))
{
return;
}
_workQueue.Enqueue(Listener.BeginAsyncOperation(nameof(SolutionChecksumUpdater)));
}
public void TryPeek_nonempty()
{
var queue = new AsyncQueue<string>();
queue.Enqueue("A");
string value;
Assert.IsTrue(queue.TryPeek(out value));
Assert.AreEqual("A", value);
Assert.AreEqual(1, queue.Count);
}
public void TryPeek_empty()
{
var queue = new AsyncQueue<string>();
string value;
Assert.IsFalse(queue.TryPeek(out value));
}