private IEnumerator WhenAnyで何か1つのタスクが終わるのを待てるIterator()
{
var delays = new[] { 3, 5, 7, 9, 11, 13 };
var tasks = delays.Select(d => Task.Run(() => Coroutines.NFrame(d))).ToArray();
while (true)
{
var task = Task.WhenAny(tasks);
yield return(task);
var first = task.Result;
// delays が昇順で並んでいるので、前のタスクから終わるはず
Assert.AreEqual(first, tasks[0]);
// delays に同じ値を入れていないので、同時に1個ずつしか終わらないはず
foreach (var t in tasks.Skip(1))
{
Assert.IsFalse(t.IsCompleted);
}
// 終わったやつを除外。全部終わったら終了
tasks = tasks.Where(t => t != first).ToArray();
if (tasks.Length == 0)
{
break;
}
}
}
private IEnumerator yield_returnでawait的なことができるIterator(int maxDelay, TaskSchedulerHelper s)
{
var random = new Random();
int n = random.Next(19, maxDelay);
var tasks = Enumerable.Range(0, 5).Select(_ => Task.Run(Coroutines.NFrame(n))).ToArray();
foreach (var t in tasks)
{
if (t.IsCompleted)
{
// 完了済みのタスクを yield return すると、1フレーム後にすぐ戻ってくるはず
var countBefore = s.FrameCount;
yield return(t);
var countAfter = s.FrameCount;
Assert.AreEqual(countBefore + 1, countAfter);
}
else
{
yield return(t);
// yield return するとタスク完了待てる
Assert.IsTrue(t.IsCompleted);
}
}
foreach (var t in tasks)
{
Assert.IsTrue(t.IsCompleted);
}
}
private IEnumerator Await5Frame(Action <int> completedFrameCount)
{
var s = Task.DefaultScheduler.UpdateCount;
yield return(Coroutines.NFrame(5));
completedFrameCount(Task.DefaultScheduler.UpdateCount - s);
}
public void OnCompleteは_直前のタスク完了時_エラーも正常終了も_どちらも呼ばれる()
{
var errorTaskCalled = false;
var normalTaskCalled = false;
var normalTask = Task.Run(() => Coroutines.NFrame(5))
.OnComplete(t => normalTaskCalled = true);
var errorTask = Task.Run <int>(Coroutines.FErrorAsync)
.OnComplete(t => errorTaskCalled = true);
var scheduler = Task.DefaultScheduler;
scheduler.Update(20);
Assert.IsTrue(normalTaskCalled);
Assert.IsTrue(errorTaskCalled);
}
public void OnCompleteは_直前のタスク完了時_エラーも正常終了も_どちらも呼ばれる()
{
var errorTaskCalled = false;
var normalTaskCalled = false;
var normalTask = new Task(() => Coroutines.NFrame(5))
.OnComplete(t => normalTaskCalled = true);
var errorTask = new Task <int>(Coroutines.FErrorAsync)
.OnComplete(t => errorTaskCalled = true);
var runner = new SampleTaskRunner.TaskRunner();
errorTask.Start(runner);
normalTask.Start(runner);
runner.Update(20);
Assert.IsTrue(normalTaskCalled);
Assert.IsTrue(errorTaskCalled);
}
public void WhenAllでタスクの並行動作できる()
{
var t1 = Task.Run(() => Coroutines.NFrame(3));
var t2 = Task.Run(() => Coroutines.NFrame(5));
var t3 = Task.Run(() => Coroutines.NFrame(7));
var task = Task.WhenAll(t1, t2, t3)
.OnComplete(t =>
{
Assert.IsTrue(t1.IsCompleted);
Assert.IsTrue(t2.IsCompleted);
Assert.IsTrue(t3.IsCompleted);
});
var scheduler = Task.DefaultScheduler;
scheduler.Update(20);
Assert.IsTrue(task.IsCompleted);
Assert.IsNull(task.Exception);
}
public void WhenAllでタスクの並行動作できる()
{
var t1 = new Task(() => Coroutines.NFrame(3));
var t2 = new Task(() => Coroutines.NFrame(5));
var t3 = new Task(() => Coroutines.NFrame(7));
var task = Task.WhenAllTask(t1, t2, t3)
.OnComplete(t =>
{
Assert.IsTrue(t1.IsCompleted);
Assert.IsTrue(t2.IsCompleted);
Assert.IsTrue(t3.IsCompleted);
});
var runner = new SampleTaskRunner.TaskRunner();
task.Start(runner);
runner.Update(20);
Assert.IsTrue(task.IsCompleted);
}
public void タスク完了と同フレームでContinueWithが呼ばれる()
{
var random = new Random();
int n = random.Next(10, 300);
var scheduler = new TaskSchedulerHelper(Task.DefaultScheduler);
int count = 0;
var t1 = Task.Run(() => Coroutines.NFrame(n))
.ContinueWith((_) => count = scheduler.FrameCount);
for (var i = 0; i < 10000; ++i)
{
scheduler.Update();
if (t1.IsCompleted)
{
Assert.AreEqual(n, i);
break;
}
}
Assert.AreEqual(n, count);
}