public void DefaultSamplingRateIs100Percent()
{
var processor = new SamplingTelemetryProcessor(new StubTelemetryProcessor(null));
Assert.AreEqual(processor.SamplingPercentage, 100.0);
Assert.IsNull(processor.ProactiveSamplingPercentage);
}
public void AdaptiveSamplingSetsExcludedTypesOnInternalSamplingProcessor()
{
var tc = new TelemetryConfiguration {
TelemetryChannel = new StubTelemetryChannel()
};
var channelBuilder = new TelemetryProcessorChainBuilder(tc);
channelBuilder.UseAdaptiveSampling(5, "request;");
channelBuilder.Build();
var fieldInfo = typeof(AdaptiveSamplingTelemetryProcessor).GetField("samplingProcessor", BindingFlags.GetField | BindingFlags.Instance | BindingFlags.NonPublic);
SamplingTelemetryProcessor internalProcessor = (SamplingTelemetryProcessor)fieldInfo.GetValue(tc.TelemetryProcessorChain.FirstTelemetryProcessor);
Assert.AreEqual("request;", internalProcessor.ExcludedTypes);
}
public void SamplingRoutesExcludedTypes()
{
var unsampled = new AdaptiveTesterMessageSink();
var sampled = new AdaptiveTesterMessageSink();
SamplingTelemetryProcessor sampler = new SamplingTelemetryProcessor(unsampled, sampled);
sampler.ExcludedTypes = "Request";
sampler.SamplingPercentage = 100.0;
sampler.Process(new RequestTelemetry());
sampler.Process(new EventTelemetry());
Assert.IsNotNull(sampled.events.Dequeue());
Assert.IsNotNull(unsampled.requests.Dequeue());
}
public void EarlyExitWhenProcessingAt100Percent()
{
var sentTelemetry = new List <ITelemetry>();
var processor = new SamplingTelemetryProcessor(new StubTelemetryProcessor(null)
{
OnProcess = t => sentTelemetry.Add(t)
})
{
SamplingPercentage = 100.0
};
processor.Process(new RequestTelemetry());
Assert.IsFalse(((ISupportSampling)sentTelemetry[0]).SamplingPercentage.HasValue);
}
public void AllTelemetryIsSentWithDefaultSamplingRate()
{
var sentTelemetry = new List <ITelemetry>();
var processor = new SamplingTelemetryProcessor(new StubTelemetryProcessor(null)
{
OnProcess = t => sentTelemetry.Add(t)
});
const int ItemsToGenerate = 100;
for (int i = 0; i < ItemsToGenerate; i++)
{
processor.Process(new RequestTelemetry());
}
Assert.AreEqual(ItemsToGenerate, sentTelemetry.Count);
}
public void TelemetryItemHasSamplingPercentageSet()
{
var sentTelemetry = new List <ITelemetry>();
var processor = new SamplingTelemetryProcessor(new StubTelemetryProcessor(null)
{
OnProcess = t => sentTelemetry.Add(t)
});
processor.SamplingPercentage = 20;
do
{
processor.Process(new RequestTelemetry());
}while (sentTelemetry.Count == 0);
Assert.Equal(20, ((ISupportSampling)sentTelemetry[0]).SamplingPercentage);
}
public void TelemetryItemSamplingIsSkippedWhenSetByUser()
{
var sentTelemetry = new List <ITelemetry>();
var processor = new SamplingTelemetryProcessor(new StubTelemetryProcessor(null)
{
OnProcess = t => sentTelemetry.Add(t)
})
{
SamplingPercentage = 0
};
var requestTelemetry = new RequestTelemetry();
((ISupportSampling)requestTelemetry).SamplingPercentage = 100;
processor.Process(requestTelemetry);
Assert.AreEqual(1, sentTelemetry.Count);
}
public void SamplingWontEarlyExitWhenUnsampledNextPresent()
{
var unsampled = new AdaptiveTesterMessageSink();
var sampled = new AdaptiveTesterMessageSink();
SamplingTelemetryProcessor sampler = new SamplingTelemetryProcessor(unsampled, sampled)
{
SamplingPercentage = 100.0
};
sampler.Process(new RequestTelemetry());
Assert.IsTrue(sampled.requests.Count == 1);
var sent = sampled.requests.Dequeue();
Assert.IsNotNull(sent);
var sentSample = sent as ISupportSampling;
Assert.IsNotNull(sentSample);
Assert.IsTrue(sentSample.SamplingPercentage.HasValue);
}
public void SamplingSkipsSampledTelemetryItemProperty()
{
var unsampled = new AdaptiveTesterMessageSink();
var sampled = new AdaptiveTesterMessageSink();
SamplingTelemetryProcessor sampler = new SamplingTelemetryProcessor(unsampled, sampled)
{
SamplingPercentage = 100.0
};
var send = new RequestTelemetry();
var sendSampled = (send as ISupportSampling);
Assert.IsNotNull(sendSampled);
sendSampled.SamplingPercentage = 25.0;
sampler.Process(send);
Assert.IsTrue(unsampled.requests.Count == 1);
Assert.IsTrue(sampled.requests.Count == 0);
}
public void DefaultSamplingRateIs100Percent()
{
var processor = new SamplingTelemetryProcessor(new StubTelemetryProcessor(null));
Assert.Equal(processor.SamplingPercentage, 100.0, 12);
}