public void ExceptionsFromTasks()
{
StartPoint <int> start = StandardTasks.GetRangeEnumerator(1, 10);
int i = 0;
EndPoint <int> end = new EndPoint <int>(
(int input) =>
{
i++;
throw new InvalidTimeZoneException();
}
);
end.Retries = 3;
Flow f = Flow.FromAsciiArt("b<--a", start, end);
f.Start();
try
{
f.RunToCompletion();
Assert.Fail("RunToCompletion should throw any stopping exceptions from tasks");
}
catch (InvalidTimeZoneException)
{ }
Console.WriteLine("Exceptions thown : {0}", i);
Console.WriteLine("Status of flow after error: \n{0}", f.GetStateSnapshot());
Assert.AreEqual(RunStatus.Error, end.Status);
Assert.AreEqual(0, end.ItemsProcessed);
}
public void EventsAndStatePresentation()
{
StartPoint <int> start = StandardTasks.GetRangeEnumerator(1, 100);
TaskNode <int, string> filter = Helpers.GetFilter();
filter.ThreadNumber = 2;
Collector <string> end = new Collector <string>();
filter.ItemProcessed += new EventHandler <TaskNode.ItemEventArgs>(EndItemProcessed);
Flow f = Flow.FromAsciiArt("a-->b->z", start, filter, end);
f.Start();
f.RunToCompletion();
// all items have left the flow, but some threads may still be running. The status of the tasks
// could still be Stopping, or even Running
Thread.Sleep(10);
// Now everything should have status Stopped
Assert.AreEqual(RunStatus.Stopped, f.Status);
Console.WriteLine("last: {0}\n\n", f.GetStateSnapshot());
}
public void SortingValues()
{
InputPoint <int> entry = new InputPoint <int>();
TaskNode <int, int> sorter = StandardTasks.GetSortingFilter <int>();
Collector <int> collect = new Collector <int>();
sorter.ItemProcessed += new EventHandler <TaskNode.ItemEventArgs>(sorter_ItemProcessed);
Flow f = Flow.FromAsciiArt("a-->b-->c", entry, sorter, collect);
f.Start();
entry.Send(3, 7, 1, 9, 123, 2, 5, 3);
entry.CloseEntrance();
f.RunToCompletion();
//Thread.Sleep(1000);
Console.WriteLine("Last:" + f.GetStateSnapshot());
Assert.AreEqual(8, collect.Items.Count);
Assert.AreEqual(1, collect.Items[0]);
Assert.AreEqual(3, collect.Items[3]);
}
public void JoinedStreams2()
{
StartPoint <int> r1 = StandardTasks.GetRangeEnumerator(21, 50);
StartPoint <int> r2 = StandardTasks.GetRangeEnumerator(41, 90);
StartPoint <int> r3 = StandardTasks.GetRangeEnumerator(-9, 10);
Collector <int> c = new Collector <int>();
Flow f = Flow.FromAsciiArt(@"
a b c
| | |
+->#<-+
|
V
d
", new Dictionary <char, TaskNode>()
{
{ 'a', r1 }, { 'b', r2 }, { 'c', r3 }, { 'd', c }
});
f.Start();
f.RunToCompletion();
Assert.AreEqual(100, c.Items.Count);
}
public void HandledExceptionsFromTasks()
{
StartPoint <int> start = StandardTasks.GetRangeEnumerator(1, 2);
int i = 0;
EndPoint <int> end = new EndPoint <int>(
(int input) =>
{
i++;
throw new InvalidTimeZoneException();
}
);
end.Retries = 3;
Flow f = Flow.FromAsciiArt("b<--a", start, end);
f.Error += new EventHandler <Flow.ErrorEventArgs>(f_Error);
f.Start();
f.RunToCompletion();
//Assert.AreEqual(RunStatus.Stopped, end.Status); //check doesn't hold, as the separate tasks may still be shutting down when the last data item leaves the system
Assert.AreEqual(0, end.ItemsProcessed); // nothing successfully
Console.WriteLine("Status of flow: \n{0}", f.GetStateSnapshot());
}
