public void stops_worker_threads_after_dispose()
{
var sender = new ThreadSafeConsumerProducerSender(new ThreadSafeConsumerProducerSender.Configuration() { MaxSendDelayMS = 1000 });
sender.StatsdUDP = _udp;
var metric = new Timing() { Name = "testMetric", ValueAsInt = 50 };
sender.Dispose();
sender.Send(metric);
Thread.Sleep(1500);
IList<object[]> argsPerCall = _udp.GetArgumentsForCallsMadeOn(x => x.Send(Arg<string>.Is.Anything));
Assert.That(argsPerCall.Count, Is.EqualTo(0));
}
public void does_not_exceed_max_packet_size()
{
var udpStub = MockRepository.GenerateStub<IStatsdUDP>();
udpStub.Stub(x => x.MaxUDPPacketSize).Return(300);
var sender = new ThreadSafeConsumerProducerSender(new ThreadSafeConsumerProducerSender.Configuration() { MaxSendDelayMS = 1000 });
sender.StatsdUDP = udpStub;
for (var i = 0; i < 100; i ++)
{
var metricName = (Guid.NewGuid()).ToString();
var metric = new Counting() { Name = metricName, ValueAsInt = 1 };
sender.Send(metric);
}
Thread.Sleep(3000);
IList<object[]> argsPerCall = udpStub.GetArgumentsForCallsMadeOn(x => x.Send(Arg<string>.Is.Anything));
for (var i = 0; i < argsPerCall.Count; i++)
{
var packetSize = ((string)argsPerCall[i][0]).Length;
Assert.That(packetSize, Is.LessThanOrEqualTo(300));
}
}
public void sends_after_delay()
{
var metric = new Counting() { Name = "testMetric", ValueAsInt = 5 };
DateTime timeCalled = DateTime.MaxValue;
var udpStub = MockRepository.GenerateStub<IStatsdUDP>();
udpStub.Stub(x => x.Send(Arg<string>.Is.Anything))
.WhenCalled(m => timeCalled = DateTime.Now);
var sender = new ThreadSafeConsumerProducerSender(new ThreadSafeConsumerProducerSender.Configuration() { MaxSendDelayMS = 2000 });
sender.StatsdUDP = udpStub;
DateTime startTime = DateTime.Now;
sender.Send(metric);
Thread.Sleep(3000);
IList<object[]> argsPerCall = udpStub.GetArgumentsForCallsMadeOn(x => x.Send(Arg<string>.Is.Anything));
Assert.That(argsPerCall.Count, Is.EqualTo(1));
Assert.That(((string)argsPerCall[0][0]), Is.EqualTo(metric.Command));
var sendDelay = (timeCalled - startTime).TotalMilliseconds;
Assert.That(sendDelay, Is.GreaterThanOrEqualTo(2000));
}
public void does_not_blow_up_if_metric_command_throws()
{
var metric = MockRepository.GenerateStub<Counting>();
metric.Stub(x => x.Command).Throw(new Exception());
var sender = new ThreadSafeConsumerProducerSender(new ThreadSafeConsumerProducerSender.Configuration() { MaxSendDelayMS = 2000 });
sender.StatsdUDP = _udp;
sender.Send(metric);
Assert.Pass();
}
public void does_not_blow_up_if_udp_send_throws()
{
var udpStub = MockRepository.GenerateStub<IStatsdUDP>();
udpStub.Stub(x => x.Send(Arg<string>.Is.Anything)).Throw(new Exception());
var metric = new Counting() { Name = "testMetric", ValueAsInt = 1 };
var sender = new ThreadSafeConsumerProducerSender(new ThreadSafeConsumerProducerSender.Configuration() { MaxSendDelayMS = 2000 });
sender.StatsdUDP = udpStub;
sender.Send(metric);
Assert.Pass();
}
public void does_not_block()
{
var metric = new Counting() { Name = "testMetric", ValueAsInt = 5 };
var sender = new ThreadSafeConsumerProducerSender(new ThreadSafeConsumerProducerSender.Configuration() { MaxSendDelayMS = 2000 });
sender.StatsdUDP = _udp;
DateTime startTime = DateTime.Now;
sender.Send(metric);
DateTime endTime = DateTime.Now;
var methodCallDelay = (endTime - startTime).TotalMilliseconds;
Assert.That(methodCallDelay, Is.LessThan(10));
}
public void does_not_aggregate_timers()
{
var sender = new ThreadSafeConsumerProducerSender(new ThreadSafeConsumerProducerSender.Configuration() { MaxSendDelayMS = 1000 });
sender.StatsdUDP = _udp;
var metricsToSend = 10;
var metric = new Timing() { Name = "testMetric", ValueAsInt = 50 };
for (var i = 0; i < metricsToSend; i++)
sender.Send(metric);
Thread.Sleep(1500);
IList<object[]> argsPerCall = _udp.GetArgumentsForCallsMadeOn(x => x.Send(Arg<string>.Is.Anything));
for (var i = 0; i < argsPerCall.Count; i ++)
{
var packet = (string)argsPerCall[i][0];
var lines = packet.Split('\n');
for(var j = 0; j < lines.Length; j ++)
{
Assert.That(lines[j], Is.EqualTo(metric.Command));
}
}
}
public void bundles_multiple_metrics_into_one_packet()
{
var sender = new ThreadSafeConsumerProducerSender(new ThreadSafeConsumerProducerSender.Configuration() { MaxSendDelayMS = 1000 });
sender.StatsdUDP = _udp;
var metricsToSend = 10;
for (var i = 0; i < metricsToSend; i++)
{
var metricName = (Guid.NewGuid()).ToString();
var metric = new Counting() { Name = metricName, ValueAsInt = 1 };
sender.Send(metric);
}
Thread.Sleep(3000);
IList<object[]> argsPerCall = _udp.GetArgumentsForCallsMadeOn(x => x.Send(Arg<string>.Is.Anything));
var packetsReceived = argsPerCall.Count;
Assert.That(packetsReceived, Is.LessThan(metricsToSend));
}
public void aggregates_gauges()
{
var sender = new ThreadSafeConsumerProducerSender(new ThreadSafeConsumerProducerSender.Configuration() { MaxSendDelayMS = 1000 });
sender.StatsdUDP = _udp;
var metricsToSend = 10;
Metric lastMetricSent = null;
for (var i = 0; i < metricsToSend; i++)
{
var metric = new Gauge() { Name = "testMetric", ValueAsDouble = 1 };
sender.Send(metric);
lastMetricSent = metric;
}
Thread.Sleep(1500);
IList<object[]> argsPerCall = _udp.GetArgumentsForCallsMadeOn(x => x.Send(Arg<string>.Is.Anything));
Assert.That(argsPerCall.Count, Is.EqualTo(1));
Assert.That(((string)argsPerCall[0][0]), Is.EqualTo(lastMetricSent.Command));
}
public void aggregates_counters()
{
var sender = new ThreadSafeConsumerProducerSender(new ThreadSafeConsumerProducerSender.Configuration() { MaxSendDelayMS = 1000 });
sender.StatsdUDP = _udp;
var metricsToSend = 10;
for (var i = 0; i < metricsToSend; i++)
{
var metric = new Counting() { Name = "testMetric", ValueAsInt = 1 };
sender.Send(metric);
}
Thread.Sleep(1500);
IList<object[]> argsPerCall = _udp.GetArgumentsForCallsMadeOn(x => x.Send(Arg<string>.Is.Anything));
Assert.That(argsPerCall.Count, Is.EqualTo(1));
Assert.That(((string)argsPerCall[0][0]), Is.EqualTo("testMetric:" + metricsToSend.ToString() + "|c"));
}