`dotnet test -f net472` fails with `net472/win-x86` error

[AArnott]

I have a multitargeting test project: net472 and net8.0.
Both run tests fine with Visual Studio Test Explorer. But from the CLI, dotnet test only works on the .NET 8 target. The .NET Framework target fails with:

Nerdbank.MessagePack.Analyzers.Tests net472 failed with 1 error(s) (0.1s)
C:\Program Files\dotnet\sdk\9.0.101\Sdks\Microsoft.NET.Sdk\targets\Microsoft.PackageDependencyResolution.targets(266,5): error NETSDK1047: Assets file 'D:\source\Nerdbank.MessagePack\obj\test\Nerdbank.MessagePack.Analyzers.Tests\project.assets.json' doesn't have a target for 'net472/win-x86'. Ensure that restore has run and that you have included 'net472' in the TargetFrameworks for your project. You may also need to include 'win-x86' in your project's RuntimeIdentifiers.

Does TUnit really bring in native binaries such that I need to commit my .NET Framework test projects to architecture specific builds?

[thomhurst]

I'd need to investigate. I don't see what's causing this. Can you create a minimal repro

[AArnott]

It turns out it's about as minimal as you can possibly imagine. This reproduces it.

repro1465.zip

Just run dotnet test in the directory after unzipping.

[thomhurst]

Cheers. I'm out today but will take a look when I get a chance

[thomhurst]

Hmm yeah weird. dotnet test -r win-x86 works. Only thing I can think is this must be some testing platform issue? I'll ask.

[thomhurst]

So just seems to be the Output type isn't set properly for net framework. I've added a FAQ section to the docs to tell people to add this if it's missing.