Implement --config for specifying testconfig.json file

src/Platform/Microsoft.Testing.Platform/CommandLine/PlatformCommandLineProvider.cs

@@ -31,6 +31,7 @@ internal sealed class PlatformCommandLineProvider : ICommandLineOptionsProvider
     public const string MinimumExpectedTestsOptionKey = "minimum-expected-tests";
     public const string TestHostControllerPIDOptionKey = "internal-testhostcontroller-pid";
     public const string ExitOnProcessExitOptionKey = "exit-on-process-exit";
+    public const string ConfigOptionKey = "config";
 
     public const string ServerOptionKey = "server";
     public const string ClientPortOptionKey = "client-port";
@@ -59,6 +60,7 @@ internal sealed class PlatformCommandLineProvider : ICommandLineOptionsProvider
         new(DiscoverTestsOptionKey, PlatformResources.PlatformCommandLineDiscoverTestsOptionDescription, ArgumentArity.Zero, false, isBuiltIn: true),
         new(IgnoreExitCodeOptionKey, PlatformResources.PlatformCommandLineIgnoreExitCodeOptionDescription, ArgumentArity.ExactlyOne, false, isBuiltIn: true),
         new(ExitOnProcessExitOptionKey, PlatformResources.PlatformCommandLineExitOnProcessExitOptionDescription, ArgumentArity.ExactlyOne, false, isBuiltIn: true),
+        new(ConfigOptionKey, PlatformResources.PlatformCommandLineConfigOptionDescription, ArgumentArity.ExactlyOne, false, isBuiltIn: true),
 
         // Hidden options
         new(HelpOptionQuestionMark, PlatformResources.PlatformCommandLineHelpOptionDescription, ArgumentArity.Zero, true, isBuiltIn: true),

src/Platform/Microsoft.Testing.Platform/Configurations/JsonConfigurationProvider.cs

@@ -1,6 +1,7 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 
+using Microsoft.Testing.Platform.CommandLine;
 using Microsoft.Testing.Platform.Helpers;
 using Microsoft.Testing.Platform.Logging;
 using Microsoft.Testing.Platform.Services;
@@ -9,10 +10,15 @@ namespace Microsoft.Testing.Platform.Configurations;
 
 internal sealed partial class JsonConfigurationSource
 {
-    internal sealed class JsonConfigurationProvider(ITestApplicationModuleInfo testApplicationModuleInfo, IFileSystem fileSystem, ILogger? logger) : IConfigurationProvider
+    internal sealed class JsonConfigurationProvider(
+        ITestApplicationModuleInfo testApplicationModuleInfo,
+        IFileSystem fileSystem,
+        CommandLineParseResult commandLineParseResult,
+        ILogger? logger) : IConfigurationProvider
     {
         private readonly ITestApplicationModuleInfo _testApplicationModuleInfo = testApplicationModuleInfo;
         private readonly IFileSystem _fileSystem = fileSystem;
+        private readonly CommandLineParseResult _commandLineParseResult = commandLineParseResult;
         private readonly ILogger? _logger = logger;
         private Dictionary<string, string?>? _propertyToAllChildren;
         private Dictionary<string, string?>? _singleValueData;
@@ -29,9 +35,12 @@ private async Task LogInformationAsync(string message)
 
         public async Task LoadAsync()
         {
-            string configFileName = $"{Path.Combine(
-                Path.GetDirectoryName(_testApplicationModuleInfo.GetCurrentTestApplicationFullPath())!,
-                Path.GetFileNameWithoutExtension(_testApplicationModuleInfo.GetCurrentTestApplicationFullPath()))}{PlatformConfigurationConstants.PlatformConfigSuffixFileName}";
+            string configFileName = _commandLineParseResult.TryGetOptionArgumentList(PlatformCommandLineProvider.ConfigOptionKey, out string[]? configOptions)
+                ? Path.GetFullPath(configOptions[0])
+                : $"{Path.Combine(
+                    Path.GetDirectoryName(_testApplicationModuleInfo.GetCurrentTestApplicationFullPath())!,
+                    Path.GetFileNameWithoutExtension(_testApplicationModuleInfo.GetCurrentTestApplicationFullPath()))}{PlatformConfigurationConstants.PlatformConfigSuffixFileName}";
+
             if (!_fileSystem.Exists(configFileName))
             {
                 await LogInformationAsync($"Config file '{configFileName}' not found.");

src/Platform/Microsoft.Testing.Platform/Configurations/JsonConfigurationSource.cs

@@ -34,5 +34,5 @@ internal sealed partial class JsonConfigurationSource(ITestApplicationModuleInfo
     public Task<bool> IsEnabledAsync() => Task.FromResult(true);
 
     public Task<IConfigurationProvider> BuildAsync(CommandLineParseResult commandLineParseResult)
-        => Task.FromResult((IConfigurationProvider)new JsonConfigurationProvider(_testApplicationModuleInfo, _fileSystem, _fileLoggerProvider?.CreateLogger(typeof(JsonConfigurationProvider).ToString())));
+        => Task.FromResult((IConfigurationProvider)new JsonConfigurationProvider(_testApplicationModuleInfo, _fileSystem, commandLineParseResult, _fileLoggerProvider?.CreateLogger(typeof(JsonConfigurationProvider).ToString())));
 }

src/Platform/Microsoft.Testing.Platform/Resources/PlatformResources.resx

@@ -662,4 +662,7 @@ Takes one argument as string in the format <value>[h|m|s] where 'value' is
     <value>Failed to read response file '{0}'. {1}.</value>
     <comment>{1} is the exception</comment>
   </data>
+  <data name="PlatformCommandLineConfigOptionDescription" xml:space="preserve">
+    <value>Specifies a testconfig.json file.</value>
+  </data>
 </root>

src/Platform/Microsoft.Testing.Platform/Resources/xlf/PlatformResources.cs.xlf

@@ -416,6 +416,11 @@
         <target state="translated">Zadejte port klienta.</target>
         <note />
       </trans-unit>
+      <trans-unit id="PlatformCommandLineConfigOptionDescription">
+        <source>Specifies a testconfig.json file.</source>
+        <target state="new">Specifies a testconfig.json file.</target>
+        <note />
+      </trans-unit>
       <trans-unit id="PlatformCommandLineDiagnosticFileLoggerSynchronousWriteOptionDescription">
         <source>Force the built-in file logger to write the log synchronously.
 Useful for scenario where you don't want to lose any log (i.e. in case of crash).

src/Platform/Microsoft.Testing.Platform/Resources/xlf/PlatformResources.de.xlf

@@ -416,6 +416,11 @@
         <target state="translated">Geben Sie den Port des Clients an.</target>
         <note />
       </trans-unit>
+      <trans-unit id="PlatformCommandLineConfigOptionDescription">
+        <source>Specifies a testconfig.json file.</source>
+        <target state="new">Specifies a testconfig.json file.</target>
+        <note />
+      </trans-unit>
       <trans-unit id="PlatformCommandLineDiagnosticFileLoggerSynchronousWriteOptionDescription">
         <source>Force the built-in file logger to write the log synchronously.
 Useful for scenario where you don't want to lose any log (i.e. in case of crash).

src/Platform/Microsoft.Testing.Platform/Resources/xlf/PlatformResources.es.xlf

@@ -416,6 +416,11 @@
         <target state="translated">Especifique el puerto del cliente.</target>
         <note />
       </trans-unit>
+      <trans-unit id="PlatformCommandLineConfigOptionDescription">
+        <source>Specifies a testconfig.json file.</source>
+        <target state="new">Specifies a testconfig.json file.</target>
+        <note />
+      </trans-unit>
       <trans-unit id="PlatformCommandLineDiagnosticFileLoggerSynchronousWriteOptionDescription">
         <source>Force the built-in file logger to write the log synchronously.
 Useful for scenario where you don't want to lose any log (i.e. in case of crash).

src/Platform/Microsoft.Testing.Platform/Resources/xlf/PlatformResources.fr.xlf

@@ -416,6 +416,11 @@
         <target state="translated">Spécifier le port du client.</target>
         <note />
       </trans-unit>
+      <trans-unit id="PlatformCommandLineConfigOptionDescription">
+        <source>Specifies a testconfig.json file.</source>
+        <target state="new">Specifies a testconfig.json file.</target>
+        <note />
+      </trans-unit>
       <trans-unit id="PlatformCommandLineDiagnosticFileLoggerSynchronousWriteOptionDescription">
         <source>Force the built-in file logger to write the log synchronously.
 Useful for scenario where you don't want to lose any log (i.e. in case of crash).

src/Platform/Microsoft.Testing.Platform/Resources/xlf/PlatformResources.it.xlf

@@ -416,6 +416,11 @@
         <target state="translated">Specifica la porta del client.</target>
         <note />
       </trans-unit>
+      <trans-unit id="PlatformCommandLineConfigOptionDescription">
+        <source>Specifies a testconfig.json file.</source>
+        <target state="new">Specifies a testconfig.json file.</target>
+        <note />
+      </trans-unit>
       <trans-unit id="PlatformCommandLineDiagnosticFileLoggerSynchronousWriteOptionDescription">
         <source>Force the built-in file logger to write the log synchronously.
 Useful for scenario where you don't want to lose any log (i.e. in case of crash).

src/Platform/Microsoft.Testing.Platform/Resources/xlf/PlatformResources.ja.xlf

@@ -416,6 +416,11 @@
         <target state="translated">クライアントのポートを指定します。</target>
         <note />
       </trans-unit>
+      <trans-unit id="PlatformCommandLineConfigOptionDescription">
+        <source>Specifies a testconfig.json file.</source>
+        <target state="new">Specifies a testconfig.json file.</target>
+        <note />
+      </trans-unit>
       <trans-unit id="PlatformCommandLineDiagnosticFileLoggerSynchronousWriteOptionDescription">
         <source>Force the built-in file logger to write the log synchronously.
 Useful for scenario where you don't want to lose any log (i.e. in case of crash).

src/Platform/Microsoft.Testing.Platform/Resources/xlf/PlatformResources.ko.xlf

@@ -416,6 +416,11 @@
         <target state="translated">클라이언트의 포트를 지정합니다.</target>
         <note />
       </trans-unit>
+      <trans-unit id="PlatformCommandLineConfigOptionDescription">
+        <source>Specifies a testconfig.json file.</source>
+        <target state="new">Specifies a testconfig.json file.</target>
+        <note />
+      </trans-unit>
       <trans-unit id="PlatformCommandLineDiagnosticFileLoggerSynchronousWriteOptionDescription">
         <source>Force the built-in file logger to write the log synchronously.
 Useful for scenario where you don't want to lose any log (i.e. in case of crash).

src/Platform/Microsoft.Testing.Platform/Resources/xlf/PlatformResources.pl.xlf

@@ -416,6 +416,11 @@
         <target state="translated">Określ port klienta.</target>
         <note />
       </trans-unit>
+      <trans-unit id="PlatformCommandLineConfigOptionDescription">
+        <source>Specifies a testconfig.json file.</source>
+        <target state="new">Specifies a testconfig.json file.</target>
+        <note />
+      </trans-unit>
       <trans-unit id="PlatformCommandLineDiagnosticFileLoggerSynchronousWriteOptionDescription">
         <source>Force the built-in file logger to write the log synchronously.
 Useful for scenario where you don't want to lose any log (i.e. in case of crash).

src/Platform/Microsoft.Testing.Platform/Resources/xlf/PlatformResources.pt-BR.xlf

@@ -416,6 +416,11 @@
         <target state="translated">Especifique a porta do cliente.</target>
         <note />
       </trans-unit>
+      <trans-unit id="PlatformCommandLineConfigOptionDescription">
+        <source>Specifies a testconfig.json file.</source>
+        <target state="new">Specifies a testconfig.json file.</target>
+        <note />
+      </trans-unit>
       <trans-unit id="PlatformCommandLineDiagnosticFileLoggerSynchronousWriteOptionDescription">
         <source>Force the built-in file logger to write the log synchronously.
 Useful for scenario where you don't want to lose any log (i.e. in case of crash).

src/Platform/Microsoft.Testing.Platform/Resources/xlf/PlatformResources.ru.xlf

@@ -416,6 +416,11 @@
         <target state="translated">Укажите порт клиента.</target>
         <note />
       </trans-unit>
+      <trans-unit id="PlatformCommandLineConfigOptionDescription">
+        <source>Specifies a testconfig.json file.</source>
+        <target state="new">Specifies a testconfig.json file.</target>
+        <note />
+      </trans-unit>
       <trans-unit id="PlatformCommandLineDiagnosticFileLoggerSynchronousWriteOptionDescription">
         <source>Force the built-in file logger to write the log synchronously.
 Useful for scenario where you don't want to lose any log (i.e. in case of crash).

src/Platform/Microsoft.Testing.Platform/Resources/xlf/PlatformResources.tr.xlf

@@ -416,6 +416,11 @@
         <target state="translated">İstemcinin bağlantı noktasını belirtir.</target>
         <note />
       </trans-unit>
+      <trans-unit id="PlatformCommandLineConfigOptionDescription">
+        <source>Specifies a testconfig.json file.</source>
+        <target state="new">Specifies a testconfig.json file.</target>
+        <note />
+      </trans-unit>
       <trans-unit id="PlatformCommandLineDiagnosticFileLoggerSynchronousWriteOptionDescription">
         <source>Force the built-in file logger to write the log synchronously.
 Useful for scenario where you don't want to lose any log (i.e. in case of crash).

src/Platform/Microsoft.Testing.Platform/Resources/xlf/PlatformResources.zh-Hans.xlf

@@ -416,6 +416,11 @@
         <target state="translated">指定客户端的端口。</target>
         <note />
       </trans-unit>
+      <trans-unit id="PlatformCommandLineConfigOptionDescription">
+        <source>Specifies a testconfig.json file.</source>
+        <target state="new">Specifies a testconfig.json file.</target>
+        <note />
+      </trans-unit>
       <trans-unit id="PlatformCommandLineDiagnosticFileLoggerSynchronousWriteOptionDescription">
         <source>Force the built-in file logger to write the log synchronously.
 Useful for scenario where you don't want to lose any log (i.e. in case of crash).

src/Platform/Microsoft.Testing.Platform/Resources/xlf/PlatformResources.zh-Hant.xlf

@@ -416,6 +416,11 @@
         <target state="translated">指定用戶端的連接埠。</target>
         <note />
       </trans-unit>
+      <trans-unit id="PlatformCommandLineConfigOptionDescription">
+        <source>Specifies a testconfig.json file.</source>
+        <target state="new">Specifies a testconfig.json file.</target>
+        <note />
+      </trans-unit>
       <trans-unit id="PlatformCommandLineDiagnosticFileLoggerSynchronousWriteOptionDescription">
         <source>Force the built-in file logger to write the log synchronously.
 Useful for scenario where you don't want to lose any log (i.e. in case of crash).

test/IntegrationTests/MSTest.Acceptance.IntegrationTests/HelpInfoTests.cs

@@ -31,6 +31,8 @@ public async Task Help_WhenMSTestExtensionRegistered_OutputHelpContentOfRegister
 Usage {AssetName}* [option providers] [extension option providers]
 Execute a .NET Test Application.
 Options:
+    --config
+        Specifies a testconfig.json file.
     --diagnostic
         Enable the diagnostic logging. The default log level is 'Trace'.
         The file will be written in the output directory with the name log_[yyMMddHHmmssfff].diag

test/IntegrationTests/Microsoft.Testing.Platform.Acceptance.IntegrationTests/HelpInfoTests.cs

@@ -27,6 +27,8 @@ .NET Testing Platform v*
 Usage {TestAssetFixture.NoExtensionAssetName}* [option providers] [extension option providers]
 Execute a .NET Test Application.
 Options:
+    --config
+        Specifies a testconfig.json file.
     --diagnostic
         Enable the diagnostic logging. The default log level is 'Trace'.
         The file will be written in the output directory with the name log_[yyMMddHHmmssfff].diag
@@ -150,6 +152,10 @@ .NET Testing Platform v.+ \[.+\]
         Arity: 1
         Hidden: True
         Description: Specify the port of the client\.
+    --config
+        Arity: 1
+        Hidden: False
+        Description: Specifies a testconfig\.json file\.
       --diagnostic
         Arity: 0
         Hidden: False
@@ -283,6 +289,8 @@ .NET Testing Platform v*
 Usage {TestAssetFixture.AllExtensionsAssetName}* [option providers] [extension option providers]
 Execute a .NET Test Application.
 Options:
+    --config
+        Specifies a testconfig.json file.
     --diagnostic
         Enable the diagnostic logging. The default log level is 'Trace'.
         The file will be written in the output directory with the name log_[yyMMddHHmmssfff].diag
@@ -418,6 +426,10 @@ .NET Testing Platform v* [*]
         Arity: 1
         Hidden: True
         Description: Specify the port of the client.
+    --config
+        Arity: 1
+        Hidden: False
+        Description: Specifies a testconfig.json file.
       --diagnostic
         Arity: 0
         Hidden: False