opentelemetry-dotnet/test/OpenTelemetry.Tests/Impl/Trace/TracerTest.cs

128 lines
4.5 KiB
C#

// <copyright file="TracerTest.cs" company="OpenTelemetry Authors">
// Copyright 2018, OpenTelemetry Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// </copyright>
using OpenTelemetry.Context.Propagation;
using OpenTelemetry.Resources;
namespace OpenTelemetry.Trace.Test
{
using System;
using OpenTelemetry.Trace.Configuration;
using OpenTelemetry.Trace.Export;
using OpenTelemetry.Trace.Sampler;
using Xunit;
public class TracerTest
{
private const string SpanName = "MySpanName";
private readonly SpanProcessor spanProcessor;
private readonly TracerConfiguration tracerConfiguration;
private readonly Tracer tracer;
public TracerTest()
{
spanProcessor = new SimpleSpanProcessor(new NoopSpanExporter());
tracerConfiguration = new TracerConfiguration();
tracer = new Tracer(spanProcessor, tracerConfiguration, Resource.Empty);
}
[Fact]
public void CreateSpanBuilder()
{
var spanBuilder = tracer.SpanBuilder(SpanName);
Assert.IsType<SpanBuilder>(spanBuilder);
}
[Fact]
public void BadConstructorArgumentsThrow()
{
var noopProc = new SimpleSpanProcessor(new NoopSpanExporter());
Assert.Throws<ArgumentNullException>(() => new Tracer(null, new TracerConfiguration(), Resource.Empty));
Assert.Throws<ArgumentNullException>(() => new Tracer(null, new TracerConfiguration(), new BinaryFormat(), new TraceContextFormat(), Resource.Empty));
Assert.Throws<ArgumentNullException>(() => new Tracer(noopProc, null, Resource.Empty));
Assert.Throws<ArgumentNullException>(() => new Tracer(noopProc, null, new BinaryFormat(), new TraceContextFormat(), Resource.Empty));
Assert.Throws<ArgumentNullException>(() => new Tracer(noopProc, new TracerConfiguration(), null, new TraceContextFormat(), Resource.Empty));
Assert.Throws<ArgumentNullException>(() => new Tracer(noopProc, new TracerConfiguration(), new BinaryFormat(), null, Resource.Empty));
Assert.Throws<ArgumentNullException>(() => new Tracer(noopProc, new TracerConfiguration(), null));
Assert.Throws<ArgumentNullException>(() => new Tracer(noopProc, new TracerConfiguration(), new BinaryFormat(), new TraceContextFormat(), null));
}
[Fact]
public void CreateSpanBuilderWithNullName()
{
Assert.Throws<ArgumentNullException>(() => tracer.SpanBuilder(null));
}
[Fact]
public void GetCurrentSpanBlank()
{
Assert.Same(BlankSpan.Instance, tracer.CurrentSpan);
}
[Fact]
public void GetCurrentSpan()
{
var span = tracer.SpanBuilder("foo").StartSpan();
using (tracer.WithSpan(span))
{
Assert.Same(span, tracer.CurrentSpan);
}
Assert.Same(BlankSpan.Instance, tracer.CurrentSpan);
}
[Fact]
public void WithSpanNull()
{
Assert.Throws<ArgumentNullException>(() => tracer.WithSpan(null));
}
[Fact]
public void GetTextFormat()
{
Assert.NotNull(tracer.TextFormat);
}
[Fact]
public void GetBinaryFormat()
{
Assert.NotNull(tracer.BinaryFormat);
}
[Fact]
public void GetActiveConfig()
{
var config = new TracerConfiguration(Samplers.NeverSample);
var tracer = new Tracer(spanProcessor, config, Resource.Empty);
Assert.Equal(config, tracer.ActiveTracerConfiguration);
}
[Fact]
public void SetActiveConfig()
{
var config = new TracerConfiguration(Samplers.NeverSample);
tracer.ActiveTracerConfiguration = config;
Assert.Equal(config, tracer.ActiveTracerConfiguration);
}
// TODO test for sampler
}
}