public void A_restart_with_backoff_source_should_restart_on_failure_when_only_due_to_failures_should_be_restarted()
{
this.AssertAllStagesStopped(() =>
{
var created = new AtomicCounter(0);
var probe = RestartSource.OnFailuresWithBackoff(() =>
{
created.IncrementAndGet();
var enumerable = new List <string> {
"a", "b", "c"
}.Select(c =>
{
if (c == "c")
{
throw new ArgumentException("failed");
}
return(c);
});
return(Source.From(enumerable));
}, TimeSpan.FromMilliseconds(10), TimeSpan.FromMilliseconds(20), 0).RunWith(this.SinkProbe <string>(), Materializer);
probe.RequestNext("a");
probe.RequestNext("b");
probe.RequestNext("a");
probe.RequestNext("b");
probe.RequestNext("a");
created.Current.Should().Be(3);
probe.Cancel();
}, Materializer);
}
private static Source <TOut, NotUsed> RestartSourceFactory <TOut, TMat>(Func <Source <TOut, TMat> > flowFactory, TimeSpan minBackoff, TimeSpan maxBackoff, double randomFactor, int maxRestarts, bool onlyOnFailures)
{
return(onlyOnFailures
? RestartSource.OnFailuresWithBackoff(flowFactory, minBackoff, maxBackoff, randomFactor, maxRestarts)
: RestartSource.WithBackoff(flowFactory, minBackoff, maxBackoff, randomFactor, maxRestarts));
}