112 lines
4.1 KiB
C#
112 lines
4.1 KiB
C#
// <copyright file="TracerBuilderTests.cs" company="OpenTelemetry Authors">
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// Copyright The 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;
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using System.Linq;
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using OpenTelemetry.Resources;
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using OpenTelemetry.Testing.Export;
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using OpenTelemetry.Trace;
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using OpenTelemetry.Trace.Configuration;
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using OpenTelemetry.Trace.Export;
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using OpenTelemetry.Trace.Samplers;
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using Xunit;
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namespace OpenTelemetry.Tests.Impl.Trace
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{
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public class TracerBuilderTests
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{
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[Fact]
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public void TracerBuilder_BadArgs()
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{
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Assert.Throws<ArgumentNullException>(() => new TracerBuilder().SetSampler(null));
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Assert.Throws<ArgumentNullException>(() => new TracerBuilder().AddProcessorPipeline(null));
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Assert.Throws<ArgumentNullException>(() => new TracerBuilder().SetTracerOptions(null));
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Assert.Throws<ArgumentNullException>(() => new TracerBuilder().AddInstrumentation<object>(null));
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}
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[Fact]
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public void TracerBuilder_Defaults()
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{
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var builder = new TracerBuilder();
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Assert.Null(builder.Sampler);
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Assert.Null(builder.ProcessingPipelines);
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Assert.Null(builder.TracerConfigurationOptions);
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Assert.Null(builder.InstrumentationFactories);
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}
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[Fact]
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public void TracerBuilder_ValidArgs()
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{
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var builder = new TracerBuilder();
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bool processorFactoryCalled = false;
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bool instrumentationFactoryCalled = true;
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var sampler = new ProbabilitySampler(0.1);
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var exporter = new TestExporter(_ => { });
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var options = new TracerConfiguration(1, 1, 1);
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builder
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.SetSampler(sampler)
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.AddProcessorPipeline(p => p
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.SetExporter(exporter)
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.SetExportingProcessor(e =>
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{
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processorFactoryCalled = true;
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Assert.Same(e, exporter);
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return new SimpleSpanProcessor(e);
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}))
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.SetTracerOptions(options)
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.AddInstrumentation(t =>
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{
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Assert.NotNull(t);
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return new TestInstrumentation(t);
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});
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Assert.Same(sampler, builder.Sampler);
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Assert.NotNull(builder.ProcessingPipelines);
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Assert.Single(builder.ProcessingPipelines);
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Assert.Same(exporter, builder.ProcessingPipelines[0].Exporter);
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Assert.NotNull(builder.ProcessingPipelines[0].Build());
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Assert.True(processorFactoryCalled);
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Assert.Same(options, builder.TracerConfigurationOptions);
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Assert.Single(builder.InstrumentationFactories);
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var instrumentationFactory = builder.InstrumentationFactories.Single();
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Assert.Equal(nameof(TestInstrumentation), instrumentationFactory.Name);
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Assert.Equal("semver:" + typeof(TestInstrumentation).Assembly.GetName().Version, instrumentationFactory.Version);
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Assert.NotNull(instrumentationFactory.Factory);
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instrumentationFactory.Factory(new TracerSdk(new SimpleSpanProcessor(exporter), new AlwaysOnSampler(), options, Resource.Empty));
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Assert.True(instrumentationFactoryCalled);
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}
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private class TestInstrumentation
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{
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private readonly Tracer tracer;
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public TestInstrumentation(Tracer tracer)
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{
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this.tracer = tracer;
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}
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}
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}
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}
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