Accept .NET 7 coverage.json format

[Bonifatius94]

Is your feature request related to a problem? Please describe.
The new .NET 7 doesn't seem to accept MSBuild coverage flags like in .NET 6 when I call my xUnit tests like this:

dotnet test /p:CollectCoverage=true /p:CoverletOutputFormat=lcov /p:CoverletOutput=lcov.info

This only generates a coverage.json file instead of the lcov.info file.

Describe the solution you'd like
Add support for parsing / converting the coverage.json file format in coverage gutters.

Describe alternatives you've considered
Adding a middleware as a build job that does the conversion like this guy. But I really didn't like the thought.

Additional context
I can provide a coverage.json file if you need to figure out what the format even is.

[aburgett87]

Hey @Bonifatius94
this is an open issue .net 7.0-rc.1 and later. See microsoft/vstest#4014. From the commentary on various issues this will be fixed before the release.

The workaround is to use environment variables.

[Bonifatius94]

Hey @aburgett87, thanks for your reply 😉

Just for understanding, you're saying that the final .NET 7 MSBuild tooling will output a lcov.info like before and everything will be fine again?

Ok, that's a bit annoying, but I can live with that. Let's close the issue for now and I'll reopen it if the .NET 7 release does something different 😂

[ryanluker]

Thanks for the issue @Bonifatius94 and thanks for the extra info and workaround @aburgett87 (I am not familiar with the .Net space so I am glad you could assist!).

We can leave this closed for now but don't hesitate to reopen or create a new issue if the 7 release starts causing you issues.