public ExampleClass()
{
_criticalMethod = new MostRecentAsyncActor <CriticalParams>(cp =>
{
Console.WriteLine(cp.Key + " = " + cp.Value);
});
}
public async Task TestRobustness()
{
var rand = new Random(42);
int lastAction = -1, lastAction2 = 42;
Action <int, CancellationToken> t = (r, tok) =>
{
lastAction = r;
Task.Delay(rand.Next(100)).Wait();
};
var queue = new MostRecentAsyncActor <int>(t);
for (var i = 0; i < 1000; i++)
{
var r = rand.Next();
lastAction2 = r;
var task = queue.Push(r);
if (i == 999)
{
await task;
}
else
{
await Task.Delay(rand.Next(150));
}
}
Assert.Equal(lastAction, lastAction2);
}
public async Task TestMostRecentSubAdd()
{
// queue some tasks that take 200ms 100ms apart
var hits = new bool[10];
Action <int, CancellationToken> t = (r, tok) =>
{
if (!tok.IsCancellationRequested)
{
hits[r] = true;
Task.Delay(100).Wait();
}
};
var queue = new MostRecentAsyncActor <int>(t);
Task last = null;
for (var i = 0; i < hits.Length; i++)
{
last = queue.Push(i);
await Task.Delay(45);
}
if (last != null)
{
await last;
}
Assert.True(hits.Last());
}
public async Task TestMiddleSkipped()
{
var hits = new bool[3];
Action <int, CancellationToken> t = (i, tok) =>
{
hits[i] = true;
Task.Delay(20).Wait();
};
var queue = new MostRecentAsyncActor <int>(t);
var t1 = queue.Push(0);
var t2 = queue.Push(1);
await queue.Push(2);
Assert.True(t1.IsCompleted);
Assert.True(t2.IsCompleted);
// the hitFirst value is arbitrary (based on timing) and not particularly related to the goal
Assert.False(hits[1]);
Assert.True(hits[2]);
}
