public void If_execution_takes_longer_than_period_it_triggers_next_execution_immediately_after_previous()
{
var counter = 0;
var failure = false;
var lastEndTime = DateTime.MinValue;
var @event = new ManualResetEventSlim(false);
var delay = TimeSpan.Zero;
var executor = new PeriodicExecutor(() =>
{
delay = DateTime.Now - lastEndTime;
if (lastEndTime != DateTime.MinValue && delay > TimeSpan.FromMilliseconds(100))
{
@event.Set();
failure = true;
return;
}
counter++;
Thread.Sleep(2000);
lastEndTime = DateTime.Now;
if (counter == 2)
{
@event.Set();
}
}, TimeSpan.FromSeconds(1));
executor.Start(true);
@event.Wait();
executor.Stop(CancellationToken.None);
Assert.IsFalse(failure, string.Format("Time between finishing previous execution and starting this longer than {0} ms", delay));
}
public void Can_shutdown_while_waiting()
{
var @event = new ManualResetEventSlim(false);
var executor = new PeriodicExecutor(@event.Set, TimeSpan.FromSeconds(10000));
executor.Start(false);
@event.Wait();
Thread.Sleep(1000);
executor.Stop(CancellationToken.None);
Assert.Pass();
}
public void If_execution_throws_it_does_not_kill_the_executor()
{
var first = true;
var success = false;
var @event = new ManualResetEventSlim(false);
var executor = new PeriodicExecutor(() =>
{
if (first)
{
first = false;
throw new Exception();
}
success = true;
@event.Set();
}, TimeSpan.FromSeconds(1));
executor.Start(true);
@event.Wait();
executor.Stop(CancellationToken.None);
Assert.IsTrue(success);
}