I just ported all our test projects to MSTest.Sdk
But now I wonder how to deal with the TestHelperProject (This is a project providing Assert-Helpers, Config-Helper etc for the tests) so it is not a test itself but need the Test Nuget Packages.
I could just use a MSTest.Sdk csproj file but then it creates a exe and I'm not sure if there are other downsides
I found https://github.com/microsoft/testfx/blob/main/samples/FxExtensibility/FxExtensibility.csproj on MSTest github and wondered why this example test helper uses Microsoft.NET.Sdk
For this kind of projects, you need to set IsTestApplication property to false in your project, just under any PropertyGroup add <IsTestApplication>false</IsTestApplication> .
It seems this part was missing in the documentation page for MSTest.Sdk, so I'm also updating the documentation in https://github.com/dotnet/docs/pull/48016