Include info about the test environment in the log dir.

Makefile

@@ -1,4 +1,4 @@
-FRAMEWORK:=net6.0
+FRAMEWORK:=net8.0
 CONFIGURATION:=Release
 ARCH:=$(subst aarch64,arm64,$(subst x86_64,x64,$(shell uname -m)))
 RUNTIME:=linux-$(ARCH)

Samples/FailingXUnitTest/FailingXUnitTest.csproj

@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
 
     <IsPackable>false</IsPackable>
   </PropertyGroup>

Samples/PassingXUnitTest/PassingXUnitTest.csproj

@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
 
     <IsPackable>false</IsPackable>
   </PropertyGroup>

Samples/PassingXUnitTestWithEnvironmentVariables/PassingXUnitTestWithEnvironmentVariables.csproj

@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
 
     <IsPackable>false</IsPackable>
   </PropertyGroup>

Samples/TimeOutXUnitTest/TimeOutXUnitTest.csproj

@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
 
     <IsPackable>false</IsPackable>
   </PropertyGroup>

Turkey.Tests/ProgramTest.cs

@@ -94,7 +94,7 @@ private static string OSArchitectureName
                 Architecture.Arm => "arm",
                 Architecture.Arm64 => "arm64",
                 Architecture.S390x => "s390x",
-                (Architecture)8 => "ppc64le", // not defined for 'net6.0' target.
+                Architecture.Ppc64le => "ppc64le",
                 _ => throw new NotSupportedException(),
             };
     }

Turkey.Tests/Turkey.Tests.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
     <IsPackable>false</IsPackable>
     <RollForward>Major</RollForward>
   </PropertyGroup>

Turkey/DotNet.cs

@@ -31,26 +31,14 @@ public List<Version> RuntimeVersions
         {
             get
             {
-                ProcessStartInfo startInfo = new ProcessStartInfo()
-                {
-                    FileName = DotnetFileName,
-                    RedirectStandardOutput = true,
-                    RedirectStandardError = true,
-                    Arguments = "--list-runtimes",
-                };
-                using (Process p = Process.Start(startInfo))
-                {
-                    p.WaitForExit();
-                    string output = p.StandardOutput.ReadToEnd();
-                    var list = output
-                        .Split("\n", StringSplitOptions.RemoveEmptyEntries)
-                        .Where(line => line.StartsWith("Microsoft.NETCore.App", StringComparison.Ordinal))
-                        .Select(line => line.Split(" ")[1])
-                        .Select(versionString => Version.Parse(versionString))
-                        .OrderBy(x => x)
-                        .ToList();
-                    return list;
-                }
+                string output = ProcessRunner.Run(DotnetFileName, "--list-runtimes");
+                return output
+                    .Split("\n", StringSplitOptions.RemoveEmptyEntries)
+                    .Where(line => line.StartsWith("Microsoft.NETCore.App", StringComparison.Ordinal))
+                    .Select(line => line.Split(" ")[1])
+                    .Select(versionString => Version.Parse(versionString))
+                    .OrderBy(x => x)
+                    .ToList();
             }
         }
 
@@ -72,25 +60,14 @@ public List<Version> SdkVersions
         {
             get
             {
-                ProcessStartInfo startInfo = new ProcessStartInfo()
-                    {
-                        FileName = DotnetFileName,
-                        RedirectStandardOutput = true,
-                        RedirectStandardError = true,
-                        Arguments = "--list-sdks",
-                    };
-                using (Process p = Process.Start(startInfo))
-                {
-                    p.WaitForExit();
-                    string output = p.StandardOutput.ReadToEnd();
-                    var list = output
+
+                string output = ProcessRunner.Run(DotnetFileName, "--list-sdks");
+                return output
                         .Split("\n", StringSplitOptions.RemoveEmptyEntries)
                         .Select(line => line.Split(" ")[0])
                         .Select(versionString => Version.Parse(versionString))
                         .OrderBy(x => x)
                         .ToList();
-                    return list;
-                }
             }
         }
 

Turkey/ProcessExtensions.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Collections.Generic;
 using System.Diagnostics;
 using System.IO;
 using System.Threading;
@@ -15,6 +16,33 @@ public static async Task<int> RunAsync(ProcessStartInfo psi, Action<string> logg
             await process.WaitForExitAsync(logger, token).ConfigureAwait(false);
             return process.ExitCode;
         }
+
+        public static string Run(string filename, params string[] args)
+        {
+            ProcessStartInfo startInfo = new ProcessStartInfo()
+            {
+                FileName = filename,
+                RedirectStandardInput = true,
+                RedirectStandardOutput = true,
+                RedirectStandardError = true,
+            };
+            foreach (var arg in args)
+            {
+                startInfo.ArgumentList.Add(arg);
+            }
+            using (Process p = Process.Start(startInfo))
+            {
+                p.StandardInput.Close();
+                string stdout = p.StandardOutput.ReadToEnd();
+                p.WaitForExit();
+                if (p.ExitCode != 0)
+                {
+                    string stderr = p.StandardError.ReadToEnd();
+                    throw new InvalidOperationException($"Executing {filename} {string.Join(' ', args)} failed with exit code {p.ExitCode} and stderr: {stderr}");
+                }
+                return stdout;
+            }
+        }
     }
 
     public static class ProcessExtensions

Turkey/TestRunner.cs

@@ -71,6 +71,7 @@ public TestRunner(SystemUnderTest system, DirectoryInfo root, bool verboseOutput
 
         public async Task<TestResults> ScanAndRunAsync(List<TestOutput> outputs, string logDir, TimeSpan defaultTimeout)
         {
+            LogEnvironment(logDir);
 
             await outputs.ForEachAsync(output => output.AtStartupAsync()).ConfigureAwait(false);
 
@@ -161,5 +162,22 @@ public async Task<TestResults> ScanAndRunAsync(List<TestOutput> outputs, string
 
             return results;
         }
+
+        private static void LogEnvironment(string logDir)
+        {
+            foreach (var sourcePath in new[] { "/proc/cpuinfo", "/proc/meminfo", "/etc/os-release" })
+            {
+                if (File.Exists(sourcePath))
+                {
+                    string destinationPath = Path.Combine(logDir, Path.GetFileName(sourcePath));
+                    // Note: we don't use File.Copy because that copies the file permissions,
+                    //       which gives issues on successive runs since the files are non-writable.
+                    File.WriteAllBytes(destinationPath, File.ReadAllBytes(sourcePath));
+                }
+            }
+
+            string unameOutput = ProcessRunner.Run("uname", "-a");
+            File.WriteAllText(Path.Combine(logDir, "uname"), unameOutput);
+        }
     }
 }

Turkey/Turkey.csproj

@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
     <!-- Building Turkey with a source-built .NET SDK may fail if that SDK references a version for TargetFramework
          that is not yet released. Setting TargetBundledFramework to 'true' enables building with such SDKs by using
          the bundled framework instead. -->