Allow to override GetDisplayName method from DataRowAttribute

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

@@ -52,7 +52,7 @@ public DataRowAttribute(params object?[]? data)
     }
 
     /// <inheritdoc />
-    public string? GetDisplayName(MethodInfo methodInfo, object?[]? data)
+    public virtual string? GetDisplayName(MethodInfo methodInfo, object?[]? data)
     {
         if (!string.IsNullOrWhiteSpace(DisplayName))
         {

src/TestFramework/TestFramework/PublicAPI/PublicAPI.Shipped.txt

@@ -49,7 +49,6 @@ Microsoft.VisualStudio.TestTools.UnitTesting.DataRowAttribute.DataRowAttribute(p
 Microsoft.VisualStudio.TestTools.UnitTesting.DataRowAttribute.DisplayName.get -> string?
 Microsoft.VisualStudio.TestTools.UnitTesting.DataRowAttribute.DisplayName.set -> void
 Microsoft.VisualStudio.TestTools.UnitTesting.DataRowAttribute.GetData(System.Reflection.MethodInfo! methodInfo) -> System.Collections.Generic.IEnumerable<object?[]!>!
-Microsoft.VisualStudio.TestTools.UnitTesting.DataRowAttribute.GetDisplayName(System.Reflection.MethodInfo! methodInfo, object?[]? data) -> string?
 Microsoft.VisualStudio.TestTools.UnitTesting.DataSourceAttribute
 Microsoft.VisualStudio.TestTools.UnitTesting.DataSourceAttribute.ConnectionString.get -> string?
 Microsoft.VisualStudio.TestTools.UnitTesting.DataSourceAttribute.DataAccessMethod.get -> Microsoft.VisualStudio.TestTools.UnitTesting.DataAccessMethod

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

@@ -1 +1 @@
-
+virtual Microsoft.VisualStudio.TestTools.UnitTesting.DataRowAttribute.GetDisplayName(System.Reflection.MethodInfo! methodInfo, object?[]? data) -> string?

test/E2ETests/Smoke.E2E.Tests/Parameterized tests/DataRowTests.cs

@@ -25,6 +25,16 @@ public void ExecuteOnlyDerivedClassDataRowsWhenBothBaseAndDerivedClassHasDataRow
         ValidatePassedTestsCount(5);
     }
 
+    public void GetDisplayName_AfterOverriding_GetsTheNewDisplayname()
+    {
+        InvokeVsTestForExecution(new string[] { TestAssembly }, testCaseFilter: "TestCategory~OverridedGetDiplayName");
+
+        ValidatePassedTestsContain(
+            "Overrided DisplayName");
+
+        ValidatePassedTestsCount(1);
+    }
+
     public void ExecuteOnlyDerivedClassDataRowsWhenItOverridesBaseClassDataRows_SimpleDataRows()
     {
         InvokeVsTestForExecution(new string[] { TestAssembly }, testCaseFilter: "FullyQualifiedName~DerivedClass&TestCategory~DataRowSimple");

test/E2ETests/TestAssets/DataRowTestProject/DataRowTests_OverrideGetDisplayName.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.Diagnostics;
+using System.Reflection;
+
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+
+namespace DataRowAttributeTestProject;
+
+[TestClass]
+public class DataRowTests_OverrideGetDisplayName
+{
+    [TestCategory("OverridedGetDiplayName")]
+    [DummyDataRowAttribute]
+    [TestMethod]
+    public void TestMethod()
+    {
+        Assert.IsTrue(true);
+    }
+
+    private class DummyDataRowAttribute : DataRowAttribute
+    {
+        public DummyDataRowAttribute()
+            : base()
+        {
+        }
+
+        public override string GetDisplayName(MethodInfo methodInfo, object[] data)
+        {
+            return "Overrided DisplayName";
+        }
+    }
+}

test/UnitTests/TestFramework.UnitTests/Attributes/DataRowAttributeTests.cs

@@ -123,6 +123,19 @@ public void GetDisplayNameForArrayOfOneItem()
         Verify(displayName == "MyMethod (a)");
     }
 
+    public void GetDisplayName_AfterOverriding_GetsTheNewDisplayname()
+    {
+        // Arrange
+        var dataRow = new DummyDataRowAttribute();
+        var methodInfoMock = new Mock<MethodInfo>();
+
+        // Act
+        var displayName = dataRow.GetDisplayName(methodInfoMock.Object, dataRow.Data);
+
+        // Assert
+        Verify(displayName == "Overrided DisplayName");
+    }
+
     public void GetDisplayNameForArrayOfMultipleItems()
     {
         // Arrange
@@ -164,4 +177,17 @@ public void GetDisplayNameForMultipleArraysOfMultipleItems()
         // Assert
         Verify(displayName == "MyMethod (System.String[],System.String[])");
     }
+
+    private class DummyDataRowAttribute : DataRowAttribute
+    {
+        public DummyDataRowAttribute()
+            : base()
+        {
+        }
+
+        public override string GetDisplayName(MethodInfo methodInfo, object[] data)
+        {
+            return "Overrided DisplayName";
+        }
+    }
 }