private void ParallelCancellationTestCase(WorkingLine wl, EventMonitor <WorkingLine> wlMon)
{
var q = wl.Queue;
var tasks = Enumerable.Range(0, 18).Select(i => new TestTask(i.ToString())).ToArray();
var taskMons = tasks.Select(t => new EventMonitor <TestTask>(t)).ToArray();
var cancelTask = tasks[9];
cancelTask.StateChanging += (s, e) =>
{
if (e.NewValue == TaskState.InProgress)
{
wl.Cancel();
}
};
wl.Enqueue(tasks);
Assert.IsTrue(wl.WaitForEnd(timeout: 4000));
AssertState(wl, isDisposed: false, busy: false);
Assert.AreEqual(0, wl.CurrentTasks.Length);
Assert.IsTrue(wl.Queue.IsEmpty);
Assert.AreEqual(TaskState.Succeeded, tasks.First().State);
Assert.AreEqual(TaskState.Obsolete, tasks.Last().State);
Assert.AreEqual(tasks.Length,
tasks.Where(t =>
t.State == TaskState.Succeeded ||
t.State == TaskState.Canceled ||
t.State == TaskState.Obsolete)
.Count());
wlMon.FilterHistory(ByEventName(
nameof(WorkingLine.BusyChanged),
nameof(WorkingLine.Cancelled)))
.AssertEventNames(
nameof(WorkingLine.BusyChanged),
nameof(WorkingLine.Cancelled),
nameof(WorkingLine.BusyChanged));
wlMon.FilterHistory(ByEventName(nameof(WorkingLine.BusyChanged)))
.AssertPropertyValues(true, false);
wlMon.FilterHistory(ByEventName(nameof(WorkingLine.BusyWorkerCountChanged)))
.AssertPropertyValues(1, 2, 3, 2, 1, 0);
}
private void SequentialCancellationTestCase(WorkingLine wl, EventMonitor <WorkingLine> wlMon)
{
var q = wl.Queue;
var tasks = Enumerable.Range(0, 4).Select(i => new TestTask(i.ToString())).ToArray();
var cancelTask = tasks[1];
cancelTask.StateChanging += (s, e) =>
{
if (e.NewValue == TaskState.InProgress)
{
wl.Cancel();
}
};
wl.Enqueue(tasks);
Assert.IsTrue(wl.WaitForEnd(timeout: 4000));
AssertState(wl, isDisposed: false, busy: false);
Assert.AreEqual(0, wl.CurrentTasks.Length);
Assert.IsTrue(wl.Queue.IsEmpty);
Assert.AreEqual(TaskState.Succeeded, tasks[0].State);
Assert.AreEqual(TaskState.Canceled, tasks[1].State);
Assert.AreEqual(TaskState.Obsolete, tasks[2].State);
Assert.AreEqual(TaskState.Obsolete, tasks[3].State);
wlMon.History
.AssertSender(wl)
.AssertEventNames(
nameof(WorkingLine.TaskBegin),
nameof(WorkingLine.BusyChanged),
nameof(WorkingLine.BusyWorkerCountChanged),
nameof(WorkingLine.TaskEnd),
nameof(WorkingLine.TaskBegin),
nameof(WorkingLine.Cancelled),
nameof(WorkingLine.TaskEnd),
nameof(WorkingLine.BusyWorkerCountChanged),
nameof(WorkingLine.BusyChanged));
}
