public void ApplicationInsightsSamplerGoodArgs()
{
ApplicationInsightsSampler pointFiveSampler = new ApplicationInsightsSampler(0.5f);
Assert.NotNull(pointFiveSampler);
ApplicationInsightsSampler zeroSampler = new ApplicationInsightsSampler(0f);
Assert.NotNull(zeroSampler);
ApplicationInsightsSampler oneSampler = new ApplicationInsightsSampler(1f);
Assert.NotNull(oneSampler);
}
public void VerifyHashAlgorithmCorrectness()
{
byte[] testBytes = new byte[]
{
0x8F, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF,
0, 0, 0, 0, 0, 0, 0, 0,
};
byte[] testBytes2 = new byte[]
{
0x0F, 0x1F, 0x2F, 0x3F,
0x4F, 0x5F, 0x6F, 0x7F,
0x8F, 0x9F, 0xAF, 0xBF,
0xCF, 0xDF, 0xEF, 0xFF,
};
ActivityTraceId testId = ActivityTraceId.CreateFromBytes(testBytes);
ActivityTraceId testId2 = ActivityTraceId.CreateFromBytes(testBytes2);
ActivityContext parentContext = default(ActivityContext);
SamplingParameters testParams = new SamplingParameters(parentContext, testId, "TestActivity", ActivityKind.Internal);
SamplingParameters testParams2 = new SamplingParameters(parentContext, testId2, "TestActivity", ActivityKind.Internal);
var zeroSampler = new ApplicationInsightsSampler(0);
ApplicationInsightsSampler oneSampler = new ApplicationInsightsSampler(1);
// 0.86 is below the sample score for testId1, but strict enough to drop testId2
ApplicationInsightsSampler ratioSampler = new ApplicationInsightsSampler(0.86f);
Assert.Equal(SamplingDecision.Drop, zeroSampler.ShouldSample(testParams).Decision);
Assert.Equal(SamplingDecision.Drop, zeroSampler.ShouldSample(testParams2).Decision);
Assert.Equal(SamplingDecision.RecordAndSample, oneSampler.ShouldSample(testParams).Decision);
Assert.Equal(SamplingDecision.RecordAndSample, oneSampler.ShouldSample(testParams2).Decision);
Assert.Equal(SamplingDecision.Drop, ratioSampler.ShouldSample(testParams).Decision);
Assert.Equal(SamplingDecision.RecordAndSample, ratioSampler.ShouldSample(testParams2).Decision);
}
