Fix DataRowAttribute to be cls compliant

TestFx.sln

@@ -182,8 +182,11 @@ EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "MSTest.Analyzers.Package", "src\Analyzers\MSTest.Analyzers.Package\MSTest.Analyzers.Package.csproj", "{DC068986-7549-4B75-8EFC-A9958FD5CF88}"
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "MSTest.Analyzers.Test", "test\UnitTests\MSTest.Analyzers.Test\MSTest.Analyzers.Test.csproj", "{1FF35C23-C128-4C95-B3F8-67B1B4C51E4D}"
+EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "MSTest.Sdk", "src\Package\MSTest.Sdk\MSTest.Sdk.csproj", "{10930CFD-EDF9-4486-B0A3-49230B5A6798}"
 EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ClsTestProject", "test\IntegrationTests\TestAssets\ClsTestProject\ClsTestProject.csproj", "{100CF515-8291-45FF-9FFD-2A9064FECC72}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -386,6 +389,10 @@ Global
 		{10930CFD-EDF9-4486-B0A3-49230B5A6798}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{10930CFD-EDF9-4486-B0A3-49230B5A6798}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{10930CFD-EDF9-4486-B0A3-49230B5A6798}.Release|Any CPU.Build.0 = Release|Any CPU
+		{100CF515-8291-45FF-9FFD-2A9064FECC72}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{100CF515-8291-45FF-9FFD-2A9064FECC72}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{100CF515-8291-45FF-9FFD-2A9064FECC72}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{100CF515-8291-45FF-9FFD-2A9064FECC72}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -455,6 +462,7 @@ Global
 		{DC068986-7549-4B75-8EFC-A9958FD5CF88} = {E7F15C9C-3928-47AD-8462-64FD29FFCA54}
 		{1FF35C23-C128-4C95-B3F8-67B1B4C51E4D} = {BB874DF1-44FE-415A-B634-A6B829107890}
 		{10930CFD-EDF9-4486-B0A3-49230B5A6798} = {E374A3A6-C364-4890-B315-D60F5C682B6E}
+		{100CF515-8291-45FF-9FFD-2A9064FECC72} = {C9F82701-0E0F-4E61-B05B-AE387E7631F6}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {31E0F4D5-975A-41CC-933E-545B2201FAF9}

src/TestFramework/TestFramework/Attributes/DataSource/DataRowAttribute.cs

@@ -21,7 +21,17 @@ public DataRowAttribute()
     }
 
     /// <summary>
-    /// Initializes a new instance of the <see cref="DataRowAttribute"/> class.
+    /// Initializes a new instance of the <see cref="DataRowAttribute"/> class with an array of object arguments.
+    /// </summary>
+    /// <param name="data"> The data. </param>
+    /// <remarks>This constructor is only kept for CLS compliant tests.</remarks>
+    public DataRowAttribute(object? data)
+    {
+        Data = data is not null ? [data] : [null];
+    }
+
+    /// <summary>
+    /// Initializes a new instance of the <see cref="DataRowAttribute"/> class with an array of string arguments.
     /// </summary>
     /// <param name="stringArrayData"> The string array data. </param>
     public DataRowAttribute(string?[]? stringArrayData)
@@ -30,7 +40,7 @@ public DataRowAttribute(string?[]? stringArrayData)
     }
 
     /// <summary>
-    /// Initializes a new instance of the <see cref="DataRowAttribute"/> class which takes in an array of arguments.
+    /// Initializes a new instance of the <see cref="DataRowAttribute"/> class with an array of object arguments.
     /// </summary>
     /// <param name="data"> The data. </param>
     public DataRowAttribute(params object?[]? data)

src/TestFramework/TestFramework/PublicAPI/PublicAPI.Unshipped.txt

@@ -1 +1,2 @@
 #nullable enable
+Microsoft.VisualStudio.TestTools.UnitTesting.DataRowAttribute.DataRowAttribute(object? data) -> void

test/IntegrationTests/MSTest.IntegrationTests/ClsTests.cs

@@ -0,0 +1,28 @@
+// 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.MSTestV2.CLIAutomation;
+
+namespace MSTest.IntegrationTests;
+
+public class ClsTests : CLITestBase
+{
+    private const string TestAssetName = "ClsTestProject";
+
+    public void TestsAreRun()
+    {
+        // Arrange
+        var assemblyPath = GetAssetFullPath(TestAssetName);
+
+        // Act
+        var testCases = DiscoverTests(assemblyPath);
+        var testResults = RunTests(testCases);
+
+        // Assert
+        VerifyE2E.TestsPassed(
+            testResults,
+            "TestMethod",
+            "IntDataRow (10)",
+            "StringDataRow (some string)");
+    }
+}

test/IntegrationTests/TestAssets/ClsTestProject/ClsTestProject.csproj

@@ -0,0 +1,12 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net462</TargetFramework>
+    <IsPackable>false</IsPackable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="$(RepoRoot)src\Adapter\MSTest.TestAdapter\MSTest.TestAdapter.csproj" />
+  </ItemGroup>
+
+</Project>

test/IntegrationTests/TestAssets/ClsTestProject/MyTests.cs

@@ -0,0 +1,34 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+
+using System;
+
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+
+[assembly: CLSCompliant(true)]
+
+namespace DataRowTestProject;
+
+[TestClass]
+public class ClsTests
+{
+    [TestMethod]
+    public void TestMethod()
+    {
+        Assert.IsTrue(true);
+    }
+
+    [TestMethod]
+    [DataRow(10)]
+    public void IntDataRow(int i)
+    {
+        Assert.IsTrue(i != 0);
+    }
+
+    [TestMethod]
+    [DataRow("some string")]
+    public void StringDataRow(string s)
+    {
+        Assert.IsNotNull(s);
+    }
+}