366 lines
14 KiB
C#
366 lines
14 KiB
C#
// <copyright file="TracerTest.cs" company="OpenTelemetry Authors">
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// Copyright 2018, OpenTelemetry Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// </copyright>
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using System.Diagnostics;
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using System.Linq;
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using System.Threading.Tasks;
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using OpenTelemetry.Context.Propagation;
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using OpenTelemetry.Resources;
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using OpenTelemetry.Tests;
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using OpenTelemetry.Utils;
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using OpenTelemetry.Trace.Sampler;
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using Xunit;
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using System;
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using System.Collections.Generic;
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using OpenTelemetry.Testing.Export;
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using OpenTelemetry.Trace.Configuration;
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using OpenTelemetry.Trace.Export;
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namespace OpenTelemetry.Trace.Test
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{
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public class TracerTest
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{
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private const string SpanName = "MySpanName";
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private readonly SpanProcessor spanProcessor;
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private readonly TracerConfiguration tracerConfiguration;
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private readonly Tracer tracer;
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private readonly TracerFactory tracerFactory;
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public TracerTest()
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{
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spanProcessor = new SimpleSpanProcessor(new TestExporter(null));
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tracerConfiguration = new TracerConfiguration();
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tracerFactory = TracerFactory.Create(b => b
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.AddProcessorPipeline(p => p.AddProcessor(_ => spanProcessor)));
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tracer = (Tracer)tracerFactory.GetTracer(null);
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}
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[Fact]
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public void BadConstructorArgumentsThrow()
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{
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var noopProc = new SimpleSpanProcessor(new TestExporter(null));
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Assert.Throws<ArgumentNullException>(() => new Tracer(null, new TracerConfiguration(), new BinaryFormat(), new TraceContextFormat(), Resource.Empty));
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Assert.Throws<ArgumentNullException>(() => new Tracer(noopProc, null, new BinaryFormat(), new TraceContextFormat(), Resource.Empty));
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Assert.Throws<ArgumentNullException>(() => new Tracer(noopProc, new TracerConfiguration(), null, new TraceContextFormat(), Resource.Empty));
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Assert.Throws<ArgumentNullException>(() => new Tracer(noopProc, new TracerConfiguration(), new BinaryFormat(), null, Resource.Empty));
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Assert.Throws<ArgumentNullException>(() => new Tracer(noopProc, new TracerConfiguration(), new BinaryFormat(), new TraceContextFormat(), null));
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}
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[Fact]
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public void Tracer_CreateSpan_BadArgs()
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{
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Assert.Throws<ArgumentNullException>(() => tracer.StartRootSpan(null));
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Assert.Throws<ArgumentNullException>(() => tracer.StartRootSpan(null, SpanKind.Client));
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Assert.Throws<ArgumentNullException>(() => tracer.StartRootSpan(null, SpanKind.Client, null));
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Assert.Throws<ArgumentNullException>(() => tracer.StartSpan(null));
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Assert.Throws<ArgumentNullException>(() => tracer.StartSpan(null, SpanKind.Client));
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Assert.Throws<ArgumentNullException>(() => tracer.StartSpan(null, SpanKind.Client, null));
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Assert.Throws<ArgumentNullException>(() => tracer.StartSpan(null, BlankSpan.Instance));
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Assert.Throws<ArgumentNullException>(() => tracer.StartSpan(null, BlankSpan.Instance, SpanKind.Client));
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Assert.Throws<ArgumentNullException>(() => tracer.StartSpan(null, BlankSpan.Instance, SpanKind.Client, null));
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Assert.Throws<ArgumentNullException>(() => tracer.StartSpan(null, SpanContext.Blank));
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Assert.Throws<ArgumentNullException>(() => tracer.StartSpan(null, SpanContext.Blank, SpanKind.Client));
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Assert.Throws<ArgumentNullException>(() => tracer.StartSpan(null, SpanContext.Blank, SpanKind.Client, null));
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Assert.Throws<ArgumentNullException>(() => tracer.StartSpanFromActivity(null, new Activity("foo").Start()));
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Assert.Throws<ArgumentNullException>(() => tracer.StartSpanFromActivity("foo", null));
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Assert.Throws<ArgumentException>(() => tracer.StartSpanFromActivity("foo", new Activity("foo")));
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Assert.Throws<ArgumentException>(() => tracer.StartSpanFromActivity(
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"foo",
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new Activity("foo").SetIdFormat(ActivityIdFormat.Hierarchical).Start()));
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}
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[Fact]
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public void GetCurrentSpanBlank()
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{
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Assert.Same(BlankSpan.Instance, tracer.CurrentSpan);
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}
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[Fact]
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public void GetCurrentSpan()
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{
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var span = tracer.StartSpan("foo");
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using (tracer.WithSpan(span))
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{
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Assert.Same(span, tracer.CurrentSpan);
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}
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Assert.Same(BlankSpan.Instance, tracer.CurrentSpan);
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}
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[Fact]
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public void CreateSpan_Sampled()
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{
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var span = tracer.StartSpan("foo");
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Assert.True(span.IsRecording);
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}
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[Fact]
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public void CreateSpan_NotSampled()
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{
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var tracer = TracerFactory.Create(b => b
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.SetSampler(Samplers.NeverSample)
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.AddProcessorPipeline(p => p.AddProcessor(n => spanProcessor)))
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.GetTracer(null);
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var span = tracer.StartSpan("foo");
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Assert.False(span.IsRecording);
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}
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[Fact]
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public void CreateSpan_ByTracerWithResource()
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{
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var tracer = (Tracer)tracerFactory.GetTracer("foo", "semver:1.0.0");
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var span = (Span)tracer.StartSpan("some span");
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Assert.Equal(tracer.LibraryResource, span.LibraryResource);
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}
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[Fact]
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public void WithSpanNull()
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{
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Assert.Throws<ArgumentNullException>(() => tracer.WithSpan(null));
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}
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[Fact]
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public void GetTextFormat()
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{
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Assert.NotNull(tracer.TextFormat);
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}
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[Fact]
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public void GetBinaryFormat()
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{
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Assert.NotNull(tracer.BinaryFormat);
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}
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[Fact]
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public void DroppingAndAddingAttributes()
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{
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var maxNumberOfAttributes = 8;
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var traceConfig = new TracerConfiguration(Samplers.AlwaysSample, maxNumberOfAttributes, 128, 32);
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var tracer = TracerFactory.Create(b => b
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.AddProcessorPipeline(p => p.AddProcessor(n => spanProcessor))
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.SetTracerOptions(traceConfig))
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.GetTracer(null);
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var span = (Span)tracer.StartRootSpan(SpanName);
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for (long i = 0; i < 2 * maxNumberOfAttributes; i++)
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{
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span.SetAttribute("MyStringAttributeKey" + i, i);
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}
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Assert.Equal(maxNumberOfAttributes, span.Attributes.Count());
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for (long i = 0; i < maxNumberOfAttributes; i++)
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{
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Assert.Equal(
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i + maxNumberOfAttributes,
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span
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.Attributes
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.GetValue("MyStringAttributeKey" + (i + maxNumberOfAttributes)));
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}
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for (long i = 0; i < maxNumberOfAttributes / 2; i++)
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{
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span.SetAttribute("MyStringAttributeKey" + i, i);
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}
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Assert.Equal(maxNumberOfAttributes, span.Attributes.Count());
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// Test that we still have in the attributes map the latest maxNumberOfAttributes / 2 entries.
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for (long i = 0; i < maxNumberOfAttributes / 2; i++)
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{
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Assert.Equal(
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i + maxNumberOfAttributes * 3 / 2,
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span
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.Attributes
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.GetValue("MyStringAttributeKey" + (i + maxNumberOfAttributes * 3 / 2)));
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}
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// Test that we have the newest re-added initial entries.
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for (long i = 0; i < maxNumberOfAttributes / 2; i++)
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{
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Assert.Equal(i,
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span.Attributes.GetValue("MyStringAttributeKey" + i));
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}
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}
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[Fact]
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public async Task DroppingEvents()
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{
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var maxNumberOfEvents = 8;
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var traceConfig = new TracerConfiguration(Samplers.AlwaysSample, 32, maxNumberOfEvents, 32);
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var tracer = TracerFactory.Create(b => b
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.AddProcessorPipeline(p => p.AddProcessor(n => spanProcessor))
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.SetTracerOptions(traceConfig))
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.GetTracer(null);
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var span = (Span)tracer.StartRootSpan(SpanName);
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var eventTimestamps = new DateTimeOffset[2 * maxNumberOfEvents];
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for (int i = 0; i < 2 * maxNumberOfEvents; i++)
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{
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eventTimestamps[i] = PreciseTimestamp.GetUtcNow();
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span.AddEvent(new Event("foo", eventTimestamps[i]));
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await Task.Delay(10);
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}
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Assert.Equal(maxNumberOfEvents, span.Events.Count());
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var events = span.Events.ToArray();
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for (int i = 0; i < maxNumberOfEvents; i++)
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{
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Assert.Equal(eventTimestamps[i + maxNumberOfEvents], events[i].Timestamp);
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}
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span.End();
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Assert.Equal(maxNumberOfEvents, span.Events.Count());
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}
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[Fact]
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public void DroppingLinksFactory()
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{
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var contextLink = new SpanContext(ActivityTraceId.CreateRandom(), ActivitySpanId.CreateRandom(),
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ActivityTraceFlags.None);
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var maxNumberOfLinks = 8;
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var traceConfig = new TracerConfiguration(Samplers.AlwaysSample, 32, 128, maxNumberOfLinks);
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var tracer = TracerFactory.Create(b => b
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.AddProcessorPipeline(p => p.AddProcessor(n => spanProcessor))
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.SetTracerOptions(traceConfig))
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.GetTracer(null);
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var overflowedLinks = new List<Link>();
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var link = new Link(contextLink);
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for (var i = 0; i < 2 * maxNumberOfLinks; i++)
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{
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overflowedLinks.Add(link);
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}
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var span = (Span)tracer.StartSpan(SpanName, SpanKind.Client, new SpanCreationOptions
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{
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LinksFactory = () => overflowedLinks,
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});
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Assert.Equal(maxNumberOfLinks, span.Links.Count());
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foreach (var actualLink in span.Links)
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{
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Assert.Equal(link, actualLink);
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}
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span.End();
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Assert.Equal(maxNumberOfLinks, span.Links.Count());
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foreach (var actualLink in span.Links)
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{
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Assert.Equal(link, actualLink);
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}
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}
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[Fact]
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public void DroppingLinksEnumerable()
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{
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var contextLink = new SpanContext(ActivityTraceId.CreateRandom(), ActivitySpanId.CreateRandom(),
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ActivityTraceFlags.None);
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var maxNumberOfLinks = 8;
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var traceConfig = new TracerConfiguration(Samplers.AlwaysSample, 32, 128, maxNumberOfLinks);
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var tracer = TracerFactory.Create(b => b
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.AddProcessorPipeline(p => p.AddProcessor(n => spanProcessor))
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.SetTracerOptions(traceConfig))
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.GetTracer(null);
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var overflowedLinks = new List<Link>();
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var link = new Link(contextLink);
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for (var i = 0; i < 2 * maxNumberOfLinks; i++)
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{
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overflowedLinks.Add(link);
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}
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var span = (Span)tracer.StartSpan(SpanName, SpanKind.Client, new SpanCreationOptions
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{
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Links = overflowedLinks,
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});
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Assert.Equal(maxNumberOfLinks, span.Links.Count());
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foreach (var actualLink in span.Links)
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{
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Assert.Equal(link, actualLink);
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}
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span.End();
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Assert.Equal(maxNumberOfLinks, span.Links.Count());
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foreach (var actualLink in span.Links)
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{
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Assert.Equal(link, actualLink);
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}
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}
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[Fact]
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public void DroppingAttributes()
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{
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var maxNumberOfAttributes = 8;
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var traceConfig = new TracerConfiguration(Samplers.AlwaysSample, maxNumberOfAttributes, 128, 32);
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var tracer = TracerFactory.Create(b => b
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.AddProcessorPipeline(p => p.AddProcessor(_ => this.spanProcessor))
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.SetTracerOptions(traceConfig))
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.GetTracer(null);
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var span = (Span)tracer.StartRootSpan(SpanName);
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for (var i = 0; i < 2 * maxNumberOfAttributes; i++)
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{
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span.SetAttribute("MyStringAttributeKey" + i, i);
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}
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Assert.Equal(maxNumberOfAttributes, span.Attributes.Count());
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for (long i = 0; i < maxNumberOfAttributes; i++)
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{
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Assert.Equal(
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i + maxNumberOfAttributes,
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span
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.Attributes
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.GetValue("MyStringAttributeKey" + (i + maxNumberOfAttributes)));
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}
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span.End();
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Assert.Equal(maxNumberOfAttributes, span.Attributes.Count());
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for (long i = 0; i < maxNumberOfAttributes; i++)
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{
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Assert.Equal(
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i + maxNumberOfAttributes,
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span
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.Attributes
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.GetValue("MyStringAttributeKey" + (i + maxNumberOfAttributes)));
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}
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}
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}
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}
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