public void ShouldFlushOnDispose()
{
var clock = new DummyClock("11:00:00.000");
var sink = new DictionarySink();
using (var e = new MetricsCollector(sink, clock, oneSecond, TimeSpan.FromSeconds(5), false))
{
clock.Set("12:00:01.500");
// 10000 events per second for 10 virtual seconds, using 3 threads
var options = new ParallelOptions {
MaxDegreeOfParallelism = 5
};
for (int i = 0; i < 10; i++)
{
Parallel.For(0, 10000, options, (j, s) =>
{
e.IncrementCounter($"myevent-{Thread.CurrentThread.ManagedThreadId}");
});
clock.Advance(oneSecond);
}
}
// Dispose method on event collect ensures all events are flushed immediately
Assert.Equal(100000, sink.Counters.Values.Sum());
}
public void EventShouldFlushAtMultiplesOf5000ms()
{
var clock = new DummyClock("11:00:00.000");
var sink = new DictionarySink();
using (var e = new MetricsCollector(sink, clock, oneSecond, TimeSpan.FromSeconds(5), false))
{
clock.Set("12:00:04.000");
e.IncrementCounter("myevent");
// should not fire event yet
clock.Set("12:00:04.999");
Assert.Empty(sink.Counters);
clock.Set("12:00:05.000");
// should now fire event on another thread and then return
Assert.Single(sink.Counters);
}
}