Add artifact naming service with template support for consistent naming across extensions

docs/ArtifactNamingService.md

@@ -0,0 +1,100 @@
+# Artifact Naming Service
+
+The artifact naming service provides a standardized way to generate consistent names and paths for test artifacts across all extensions.
+
+## Features
+
+### Template-Based Naming
+Use placeholders in angle brackets to create dynamic file names:
+
+```
+<pname>_<pid>_<id>_hang.dmp
+```
+Resolves to: `MyTests_12345_a1b2c3d4_hang.dmp`
+
+### Complex Path Templates
+Create structured directory layouts:
+
+```
+<root>/artifacts/<os>/<asm>/dumps/<pname>_<pid>_<tfm>_<time>.dmp
+```
+Resolves to: `c:/myproject/artifacts/linux/MyTests/dumps/my-child-process_10001_net9.0_2025-09-22T13:49:34.dmp`
+
+### Available Placeholders
+
+| Placeholder | Description | Example |
+|-------------|-------------|---------|
+| `<pname>` | Name of the process | `MyTests` |
+| `<pid>` | Process ID | `12345` |
+| `<id>` | Short random identifier (8 chars) | `a1b2c3d4` |
+| `<os>` | Operating system | `windows`, `linux`, `macos` |
+| `<asm>` | Assembly name | `MyTests` |
+| `<tfm>` | Target framework moniker | `net9.0`, `net8.0` |
+| `<time>` | Timestamp (1-second precision) | `2025-09-22T13:49:34` |
+| `<root>` | Project root directory | Found via solution/git/working dir |
+
+### Backward Compatibility
+Legacy patterns are still supported:
+
+```csharp
+// Old pattern
+"myfile_%p.dmp"
+
+// Works with legacy support
+service.ResolveTemplateWithLegacySupport("myfile_%p.dmp", 
+    legacyReplacements: new Dictionary<string, string> { ["%p"] = "12345" });
+```
+
+### Custom Replacements
+Override default values for specific scenarios:
+
+```csharp
+// When dumping a different process than the test host
+var customReplacements = new Dictionary<string, string>
+{
+    ["pname"] = "Notepad",
+    ["pid"] = "1111"
+};
+
+string result = service.ResolveTemplate("<pname>_<pid>.dmp", customReplacements);
+// Result: "Notepad_1111.dmp"
+```
+
+## Usage in Extensions
+
+Extensions can use the service through dependency injection:
+
+```csharp
+public class MyExtension
+{
+    private readonly IArtifactNamingService _artifactNamingService;
+
+    public MyExtension(IServiceProvider serviceProvider)
+    {
+        _artifactNamingService = serviceProvider.GetArtifactNamingService();
+    }
+
+    public void CreateArtifact(string template)
+    {
+        string fileName = _artifactNamingService.ResolveTemplate(template);
+        // Use fileName for artifact creation
+    }
+}
+```
+
+## Hang Dump Integration
+
+The hang dump extension now uses the artifact naming service and supports both legacy and modern patterns:
+
+```bash
+# Legacy pattern (still works)
+--hangdump-filename "mydump_%p.dmp"
+
+# New template pattern  
+--hangdump-filename "<pname>_<pid>_<id>_hang.dmp"
+
+# Complex path template
+--hangdump-filename "<root>/dumps/<os>/<pname>_<pid>_<time>.dmp"
+```
+
+This provides consistent artifact naming across all extensions while maintaining backward compatibility.

src/Platform/Microsoft.Testing.Extensions.HangDump/HangDumpProcessLifetimeHandler.cs

@@ -16,6 +16,7 @@
 using Microsoft.Testing.Platform.Logging;
 using Microsoft.Testing.Platform.Messages;
 using Microsoft.Testing.Platform.OutputDevice;
+using Microsoft.Testing.Platform.Services;
 
 #if NETCOREAPP
 using Microsoft.Diagnostics.NETCore.Client;
@@ -45,6 +46,7 @@ internal sealed class HangDumpProcessLifetimeHandler : ITestHostProcessLifetimeH
     private readonly ILogger<HangDumpProcessLifetimeHandler> _logger;
     private readonly ManualResetEventSlim _waitConsumerPipeName = new(false);
     private readonly List<string> _dumpFiles = [];
+    private readonly IArtifactNamingService _artifactNamingService;
 
     private TimeSpan? _activityTimerValue;
     private Timer? _activityTimer;
@@ -66,7 +68,8 @@ public HangDumpProcessLifetimeHandler(
         ILoggerFactory loggerFactory,
         IConfiguration configuration,
         IProcessHandler processHandler,
-        IClock clock)
+        IClock clock,
+        IArtifactNamingService artifactNamingService)
     {
         _logger = loggerFactory.CreateLogger<HangDumpProcessLifetimeHandler>();
         _traceEnabled = _logger.IsEnabled(LogLevel.Trace);
@@ -79,6 +82,7 @@ public HangDumpProcessLifetimeHandler(
         _configuration = configuration;
         _processHandler = processHandler;
         _clock = clock;
+        _artifactNamingService = artifactNamingService;
     }
 
     public string Uid => nameof(HangDumpProcessLifetimeHandler);
@@ -119,10 +123,10 @@ public async Task BeforeTestHostProcessStartAsync(CancellationToken cancellation
 
         _waitConnectionTask = _task.Run(
             async () =>
-        {
-            await _logger.LogDebugAsync($"Waiting for connection to {_singleConnectionNamedPipeServer.PipeName.Name}").ConfigureAwait(false);
-            await _singleConnectionNamedPipeServer.WaitConnectionAsync(cancellationToken).TimeoutAfterAsync(TimeoutHelper.DefaultHangTimeSpanTimeout, cancellationToken).ConfigureAwait(false);
-        }, cancellationToken);
+            {
+                await _logger.LogDebugAsync($"Waiting for connection to {_singleConnectionNamedPipeServer.PipeName.Name}").ConfigureAwait(false);
+                await _singleConnectionNamedPipeServer.WaitConnectionAsync(cancellationToken).TimeoutAfterAsync(TimeoutHelper.DefaultHangTimeSpanTimeout, cancellationToken).ConfigureAwait(false);
+            }, cancellationToken);
     }
 
     private async Task<IResponse> CallbackAsync(IRequest request)
@@ -325,7 +329,14 @@ private async Task TakeDumpAsync(IProcess process, CancellationToken cancellatio
         ApplicationStateGuard.Ensure(_testHostProcessInformation is not null);
         ApplicationStateGuard.Ensure(_dumpType is not null);
 
-        string finalDumpFileName = (_dumpFileNamePattern ?? $"{process.Name}_%p_hang.dmp").Replace("%p", process.Id.ToString(CultureInfo.InvariantCulture));
+        var customReplacements = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase)
+        {
+            ["pname"] = process.Name,
+            ["pid"] = process.Id.ToString(CultureInfo.InvariantCulture),
+            ["%p"] = process.Id.ToString(CultureInfo.InvariantCulture),
+        };
+
+        string finalDumpFileName = _artifactNamingService.ResolveTemplate(_dumpFileNamePattern ?? $"{process.Name}_%p_hang.dmp", customReplacements);
         finalDumpFileName = Path.Combine(_configuration.GetTestResultDirectory(), finalDumpFileName);
 
         ApplicationStateGuard.Ensure(_namedPipeClient is not null);
@@ -349,7 +360,6 @@ private async Task TakeDumpAsync(IProcess process, CancellationToken cancellatio
         }
 
         await _logger.LogInformationAsync($"Creating dump filename {finalDumpFileName}").ConfigureAwait(false);
-
         await _outputDisplay.DisplayAsync(new ErrorMessageOutputDeviceData(string.Format(CultureInfo.InvariantCulture, ExtensionResources.CreatingDumpFile, finalDumpFileName)), cancellationToken).ConfigureAwait(false);
 
 #if NETCOREAPP

src/Platform/Microsoft.Testing.Platform/Helpers/System/IEnvironment.cs

@@ -19,6 +19,8 @@ internal interface IEnvironment
     string? ProcessPath { get; }
 #endif
 
+    Version Version { get; }
+
     string[] GetCommandLineArgs();
 
     string? GetEnvironmentVariable(string name);

src/Platform/Microsoft.Testing.Platform/Helpers/System/SystemEnvironment.cs

@@ -20,6 +20,8 @@ internal sealed class SystemEnvironment : IEnvironment
     public string? ProcessPath => Environment.ProcessPath;
 #endif
 
+    public Version Version => Environment.Version;
+
     public string[] GetCommandLineArgs() => Environment.GetCommandLineArgs();
 
     public string? GetEnvironmentVariable(string name) => Environment.GetEnvironmentVariable(name);

src/Platform/Microsoft.Testing.Platform/Hosts/TestHostBuilder.cs

@@ -106,6 +106,10 @@
         serviceProvider.TryAddService(systemMonitor);
         SystemMonitorAsyncFactory systemMonitorAsyncFactory = new();
         serviceProvider.TryAddService(systemMonitorAsyncFactory);
+
+        // Add artifact naming service
+        ArtifactNamingService artifactNamingService = new(_testApplicationModuleInfo, systemEnvironment, systemClock, processHandler);
+        serviceProvider.TryAddService(artifactNamingService);
 
         PlatformInformation platformInformation = new();
         serviceProvider.AddService(platformInformation);