public void Task_Should_Be_Cancelled(IEnumerable <IPandaTask> tasks, CancellationStrategy cancellationStrategy, Type exceptionType)
{
var task = new WhenAllPandaTask(tasks, cancellationStrategy);
Assert.AreEqual(PandaTaskStatus.Rejected, task.Status);
Assert.That(task.Error, Is.InstanceOf(exceptionType));
}
internal WhenAllPandaTask(IEnumerable <IPandaTask> tasksCollection, CancellationStrategy strategy)
{
//check-set
_strategy = strategy;
if (tasksCollection == null)
{
throw new ArgumentNullException(nameof(tasksCollection));
}
//To protect for first complete task.
_waitingCount = 1;
_allFailed = true;
foreach (IPandaTask task in tasksCollection)
{
if (task == null)
{
throw new ArgumentException(@"One of the tasks is null", nameof(tasksCollection));
}
_waitingCount++;
switch (task.Status)
{
case PandaTaskStatus.Pending:
task.Done(CompleteSuccess).Fail(CompleteWithError);
break;
case PandaTaskStatus.Rejected:
CompleteWithError(task.Error);
break;
case PandaTaskStatus.Resolved:
CompleteSuccess();
break;
}
}
CheckCompletion();
}
/// <summary>
/// Creates task for waiting all tasks.
/// </summary>
/// <param name="strategy">strategy for TaskCanceledException`s aggregation</param>
/// <param name="tasks">task`s collection</param>
public static PandaTask WaitAll(CancellationStrategy strategy, IEnumerable <IPandaTask> tasks)
{
return(new WhenAllPandaTask(tasks, strategy));
}
/// <summary>
/// Creates task for waiting all tasks.
/// </summary>
/// <param name="strategy">strategy for TaskCanceledException`s aggregation</param>
/// <param name="tasks">task`s collection</param>
public static PandaTask WaitAll(CancellationStrategy strategy, params IPandaTask[] tasks)
{
return(new WhenAllPandaTask(tasks, strategy));
}
