public Machine() {
_enc = new Command.Encode();
_decCmd = new DecodeCommand(this);
_usb = new UsbInterface();
_sampStatus = SamplingStatus.BEFORE;
}
public void TestFallbackToDefaultProbabilisticSampler()
{
_undertest = new PerOperationSampler(0, _operationToSamplers, _defaultProbabilisticSampler,
DefaultLowerBoundTracesPerSecond, _loggerFactory);
SamplingStatus samplingStatus = _undertest.Sample(operation, TraceId);
Assert.True(samplingStatus.IsSampled);
_defaultProbabilisticSampler.Received(1).Sample(operation, TraceId);
}
public void TestProbabilityTagsOverrideRateLimitingTags()
{
_undertest = new GuaranteedThroughputSampler(0.999, 1.0);
SamplingStatus samplingStatus = _undertest.Sample("test", new TraceId(0L));
Assert.True(samplingStatus.IsSampled);
var tags = samplingStatus.Tags;
Assert.Equal(ProbabilisticSampler.Type, tags[Constants.SamplerTypeTagKey]);
Assert.Equal(0.999, tags[Constants.SamplerParamTagKey]);
}
public void TestRateLimitingLowerBound()
{
_undertest = new GuaranteedThroughputSampler(0.0001, 1.0);
SamplingStatus samplingStatus = _undertest.Sample("test", new TraceId(long.MaxValue));
Assert.True(samplingStatus.IsSampled);
var tags = samplingStatus.Tags;
Assert.Equal(GuaranteedThroughputSampler.Type, tags[Constants.SamplerTypeTagKey]);
Assert.Equal(0.0001, tags[Constants.SamplerParamTagKey]);
}
public void TestPerOperationSamplerWithKnownOperation()
{
GuaranteedThroughputSampler sampler = Substitute.ForPartsOf <GuaranteedThroughputSampler>(0, 0);
_operationToSamplers.Add(operation, sampler);
sampler.Sample(operation, TraceId)
.Returns(new SamplingStatus(true, EmptyTags));
SamplingStatus samplingStatus = _undertest.Sample(operation, TraceId);
Assert.True(samplingStatus.IsSampled);
sampler.Received(1).Sample(operation, TraceId);
//verifyNoMoreInteractions(_defaultProbabilisticSampler);
}
public void TestUpdate_rateLimitingSampler()
{
_undertest = new GuaranteedThroughputSampler(0.001, 1);
Assert.False(_undertest.Update(0.001, 1));
Assert.True(_undertest.Update(0.001, 0));
SamplingStatus samplingStatus = _undertest.Sample("test", new TraceId(0L));
Assert.True(samplingStatus.IsSampled);
var tags = samplingStatus.Tags;
Assert.Equal(ProbabilisticSampler.Type, tags[Constants.SamplerTypeTagKey]);
Assert.Equal(0.001, tags[Constants.SamplerParamTagKey]);
}
public void SampledHeaderIfPresentOverridesFlags(string flagsStr, string sampledStr, SamplingStatus expectedStatus)
{
var headers = new Dictionary <string, string>
{
{ ZipkinHttpHeaders.TraceId, "0000000000000001" },
{ ZipkinHttpHeaders.ParentSpanId, "0000000000000000" },
{ ZipkinHttpHeaders.SpanId, "00000000000000FA" },
{ ZipkinHttpHeaders.Flags, flagsStr }
};
if (sampledStr != null)
{
headers[ZipkinHttpHeaders.Sampled] = sampledStr;
}
Trace trace;
Assert.True(_extractor.TryExtract(headers, out trace));
Assert.AreEqual(expectedStatus, trace.CurrentSpan.SamplingStatus);
}
