[NETSDKE2E][ARM64]After installing net9preview4SDK on the arm64OS, create the MStest project and run dotnet test. The generated log is x64.

[v-ainigao]

Build:
9.0.100-preview.4.24260.3

Repro steps:
1.Install .net9 preview4 SDK on arm64.
2.Create a MStest project in CLI.
dotnet new mstest
3.Add test code in UnitTest1.cs
notepad UnitTest1.cs

using Microsoft.VisualStudio.TestTools.UnitTesting;
namespace TestProject3
{
    [TestClass]
    public class UnitTest1
    {
        [TestMethod]
        public void TestMethod1()
        {
            Assert.AreEqual(11, 11);
        }
        [TestMethod]
        public void TestMethod2()
        {
            Assert.AreEqual(1, 11);
        }
        [TestMethod]
        public void TestMethod3()
        {
            Assert.Inconclusive();
        }
    }
}

4.run dotnet build
5.run dotnet test

Expected Result:
The generated log should default to arm64.

Actual Result:
The generated log is x64.

note:
In dotnet test --help, I did not see the prompt that the default generated log is x64.

[v-xiaofchen]

This issue also repro on Mac-arm64 OS.

[v-ainigao]

@MarcoRossignoli This issue is still repro in .net9preview4, I want to know the reason for the close and can we ignore it?

[MarcoRossignoli]

Sorry for the confusion this issue is not related to the SDK self but to the testing platform where the core sources resides here https://github.com/microsoft/testfx/tree/main/src/Platform/Microsoft.Testing.Platform

The issue is inside the package https://www.nuget.org/packages/Microsoft.Testing.Platform.MSBuild that's closed source. We fixed it and will be soon shipped.

Also it's a UX/filename issue the application will run with the correct architecture.

cc: @Evangelink @nohwnd

[v-ainigao]

Sorry for the confusion this issue is not related to the SDK self but to the testing platform where the core sources resides here https://github.com/microsoft/testfx/tree/main/src/Platform/Microsoft.Testing.Platform

The issue is inside the package https://www.nuget.org/packages/Microsoft.Testing.Platform.MSBuild that's closed source. We fixed it and will be soon shipped.

Also it's a UX/filename issue the application will run with the correct architecture.

cc: @Evangelink @nohwnd

Okay, thank you for your explanation, I'll keep checking until the right platform shows up.

[MarcoRossignoli]

Most likely will be fixed in the next patch version of MSTest, @Evangelink can you confirm or give some ETA?

[Evangelink]

I will be releasing a fix tomorrow or on Wednesday.

[v-ainigao]

This issue also repro's in .net9preview5.Is it still under fixed?

[Evangelink]

Sorry @v-ainigao, we got a couple of other bug fixes to include. I have just done the release and will update the test-template now.

[v-ainigao]

Sorry @v-ainigao, we got a couple of other bug fixes to include. I have just done the release and will update the test-template now.

That's all right, I will keep tracking. thank you.