public void When_ScheduleRepeatedly_using_canceled_Cancelable_Then_their_actions_should_not_be_invoked()
{
// Prepare, set up actions to be fired
IActionScheduler scheduler = new TaskBasedScheduler();
var canceled = Cancelable.CreateCanceled();
scheduler.ScheduleRepeatedly(0, 100, () => TestActor.Tell("Test1"), canceled);
scheduler.ScheduleRepeatedly(50, 100, () => TestActor.Tell("Test2"), canceled);
//Validate that no messages were sent
ExpectNoMsg(150);
}
public void When_ScheduleRepeatedly_with_invalid_interval_Then_exception_is_thrown(int invalidInterval)
{
IActionScheduler testScheduler = new TaskBasedScheduler();
XAssert.Throws <ArgumentOutOfRangeException>(() =>
testScheduler.ScheduleRepeatedly(42, invalidInterval, () => { })
);
}
public void When_ScheduleRepeatedly_with_0_delay_Then_action_is_executed_immediately()
{
IActionScheduler testScheduler = new TaskBasedScheduler();
var manualResetEvent = new ManualResetEventSlim();
manualResetEvent.IsSet.ShouldBeFalse();
testScheduler.ScheduleRepeatedly(0, 100, () => manualResetEvent.Set());
manualResetEvent.Wait(500).ShouldBeTrue();
}
public void ScheduleRepeatedly_in_TimeSpan_Tests(int initialDelay, int interval)
{
// Prepare, set up actions to be fired
IActionScheduler testScheduler = new TaskBasedScheduler();
testScheduler.ScheduleRepeatedly(TimeSpan.FromMilliseconds(initialDelay), TimeSpan.FromMilliseconds(interval), () => TestActor.Tell("Test"));
//Just check that we receives more than one message
ExpectMsg("Test");
ExpectMsg("Test");
ExpectMsg("Test");
}
public void When_ScheduleRepeatedly_action_crashes_Then_no_more_calls_will_be_scheduled()
{
IActionScheduler testScheduler = new TaskBasedScheduler();
var timesCalled = 0;
testScheduler.ScheduleRepeatedly(0, 10, () => { Interlocked.Increment(ref timesCalled); throw new Exception("Crash"); });
AwaitCondition(() => timesCalled >= 1);
Thread.Sleep(200); //Allow any scheduled actions to be fired.
//We expect only one of the scheduled actions to actually fire
timesCalled.ShouldBe(1);
}
public void When_ScheduleRepeatedly_and_then_canceling_before_they_occur_Then_their_actions_should_not_be_invoked()
{
// Prepare, set up actions to be fired
IActionScheduler scheduler = new TaskBasedScheduler();
var cancelable = new Cancelable(scheduler);
scheduler.ScheduleRepeatedly(100, 2, () => TestActor.Tell("Test"), cancelable);
cancelable.Cancel();
//Validate that no messages were sent
ExpectNoMsg(150);
}
public void When_canceling_existing_running_repeaters_Then_their_future_actions_should_not_be_invoked()
{
// Prepare, set up actions to be fired
IActionScheduler scheduler = new TaskBasedScheduler();
var cancelable = new Cancelable(scheduler);
scheduler.ScheduleRepeatedly(0, 150, () => TestActor.Tell("Test"), cancelable);
ExpectMsg("Test");
cancelable.Cancel();
//Validate that no more messages were sent
ExpectNoMsg(200);
}
public void When_canceling_existing_running_repeaters_by_scheduling_the_cancellation_ahead_of_time_Then_their_future_actions_should_not_be_invoked()
{
// Prepare, set up actions to be fired
IActionScheduler scheduler = new TaskBasedScheduler();
var cancelableOdd = new Cancelable(scheduler);
scheduler.ScheduleRepeatedly(1, 150, () => TestActor.Tell("Test"), cancelableOdd);
cancelableOdd.CancelAfter(50);
//Expect one message
ExpectMsg("Test");
//Validate that no messages were sent
ExpectNoMsg(200);
}
public void ScheduleRepeatedly_in_milliseconds_Tests_and_verify_the_interval(int initialDelay, int interval)
{
// Prepare, set up actions to be fired
IActionScheduler scheduler = new TaskBasedScheduler();
var cancelable = new Cancelable(Sys.Scheduler);
var receiver = ActorOf(dsl =>
{
//Receive three messages, and store the time when these were received
//after three messages stop the actor and send the times to TestActor
var messages = new List <DateTimeOffset>();
dsl.Receive <string>((s, context) =>
{
messages.Add(context.System.Scheduler.Now);
if (messages.Count == 3)
{
TestActor.Tell(messages);
cancelable.Cancel();
context.Stop(context.Self);
}
});
});
scheduler.ScheduleRepeatedly(initialDelay, interval, () => receiver.Tell(""), cancelable);
//Expect to get a list from receiver after it has received three messages
var dateTimeOffsets = ExpectMsg <List <DateTimeOffset> >();
dateTimeOffsets.ShouldHaveCount(3);
Action <int, int> validate = (a, b) =>
{
var valA = dateTimeOffsets[a];
var valB = dateTimeOffsets[b];
var diffBetweenMessages = Math.Abs((valB - valA).TotalMilliseconds);
var diffInMs = Math.Abs(diffBetweenMessages - interval);
var deviate = (diffInMs / interval);
deviate.Should(val => val < 0.1, string.Format("Expected the interval between message {1} and {2} to deviate maximum 10% from {0}. It was {3} ms between the messages. It deviated {4}%", interval, a + 1, b + 1, diffBetweenMessages, deviate * 100));
};
validate(0, 1);
validate(1, 2);
}
