EtwEventsTests.cs

// <copyright file="EtwEventsTests.cs" company="Datadog">
// Unless explicitly stated otherwise all files in this repository are licensed under the Apache 2 License.
// This product includes software developed at Datadog (https://www.datadoghq.com/). Copyright 2022 Datadog, Inc.
// </copyright>

using System.IO;
using System.Linq;
using Datadog.Profiler.IntegrationTests.Helpers;
using FluentAssertions;
using Xunit;
using Xunit.Abstractions;

namespace Datadog.Profiler.IntegrationTests.WindowsOnly
{
    [Trait("Category", "WindowsOnly")]

    public class EtwEventsTests
    {
        private readonly ITestOutputHelper _output;

        public EtwEventsTests(ITestOutputHelper output)
        {
            _output = output;
        }

        [TestAppFact("Samples.Computer01", new[] { "net462" })]
        public void CheckErrorWhenNoAgentIsAvailable(string appName, string framework, string appAssembly)
        {
            var runner = new TestApplicationRunner(appName, framework, appAssembly, _output, commandLine: "--scenario 1");

            using var agent = MockDatadogAgent.CreateHttpAgent(runner.XUnitLogger);

            runner.Run(agent);

            var logFile = Directory.GetFiles(runner.Environment.LogDir)
                .Single(f => Path.GetFileName(f).StartsWith("DD-DotNet-Profiler-Native-"));

            var lines = File.ReadAllLines(logFile);

            lines.Should().ContainMatch("*Impossible to connect to the Datadog Agent named pipe*");
        }
    }
}