PluginsTests.cs

// Copyright The OpenTelemetry Authors
// SPDX-License-Identifier: Apache-2.0

using FluentAssertions;
using IntegrationTests.Helpers;
using Xunit.Abstractions;

namespace IntegrationTests;

public class PluginsTests : TestHelper
{
    public PluginsTests(ITestOutputHelper output)
        : base("Plugins", output)
    {
    }

    [Fact]
    [Trait("Category", "EndToEnd")]
    public void InitPlugin()
    {
        SetEnvironmentVariable("OTEL_DOTNET_AUTO_PLUGINS", "TestApplication.Plugins.Plugin, TestApplication.Plugins, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null");

        var (standardOutput, _, _) = RunTestApplication();

        standardOutput.Should().Contain("Plugin.Initializing() invoked.");
    }

    [Fact]
    [Trait("Category", "EndToEnd")]
    public void SubmitsTraces()
    {
        using var collector = new MockSpansCollector(Output);
        SetExporter(collector);
        collector.Expect("MyCompany.MyProduct.MyLibrary");
#if NETFRAMEWORK
        collector.Expect("OpenTelemetry.Instrumentation.Http.HttpWebRequest", span => span.Attributes.Any(att => att.Key == "example.plugin"));
#else
        collector.Expect("System.Net.Http", span => span.Attributes.Any(att => att.Key == "example.plugin"));
#endif

        SetEnvironmentVariable("OTEL_DOTNET_AUTO_PLUGINS", "TestApplication.Plugins.Plugin, TestApplication.Plugins, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null");
        var (standardOutput, _, _) = RunTestApplication();

        collector.AssertExpectations();
        standardOutput.Should().Contain("Plugin.ConfigureTracesOptions(OtlpExporterOptions options) invoked.");
    }

    [Fact]
    [Trait("Category", "EndToEnd")]
    public void SubmitMetrics()
    {
        using var collector = new MockMetricsCollector(Output);
        SetExporter(collector);
        collector.Expect("MyCompany.MyProduct.MyLibrary");

        SetEnvironmentVariable("OTEL_DOTNET_AUTO_PLUGINS", "TestApplication.Plugins.Plugin, TestApplication.Plugins, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null");

        var (standardOutput, _, _) = RunTestApplication();

        collector.AssertExpectations();
        standardOutput.Should().Contain("Plugin.ConfigureMetricsOptions(OtlpExporterOptions options) invoked.");
    }
}