coverlet.msbuild not working on .net 7

[maricomic]

Coverlet.msbuild (3.1.2) not working on .net 7

dotnet test /p:CollectCoverage=true /p:CoverletOutputFormat=opencover /p:MergeWith="../CoverageResults/coverage.json"

Version .net: 7.0.100-rc.2.22477.23

[aburgett87]

Hey @maricomic
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.

[thinkbeforecoding]

I have this problem with the net7.0 release.
What is the new official way to pass msbuild parameters for tests ?

[azchohfi]

Also hitting this.

[GeorgDangl]

Hitting the same, just tried to upgrade a library project to .NET 7 and it failed to generate coverage.

We're using https://github.com/nuke-build/nuke, so it was actually quite easy to resolve, but it looks really bad:

DotNetTest(c => c
    .EnableCollectCoverage()
    // See https://github.com/coverlet-coverage/coverlet/issues/1391, MSBuild parameters
    // in .NET 7 need to be set via environment variables
    .SetProcessEnvironmentVariable("CollectCoverage", "true")
    .SetCoverletOutputFormat(CoverletOutputFormat.cobertura)
    .SetProcessEnvironmentVariable("CoverletOutputFormat", "cobertura")

[andmos]

I'm also seeing this - using

dotnet test BikeshareClient/TestBikeshareClient/TestBikeshareClient.csproj /p:CollectCoverage=true /p:Threshold=80 /p:ThresholdType=line /p:CoverletOutputFormat=opencover /p:ExcludeByAttribute=ExcludeFromCodeCoverageAttribute

With the msbuild plugin. No coverage shows up, just the standard output:

Starting test execution, please wait...
A total of 1 test files matched the specified pattern.

Passed!  - Failed:     0, Passed:    98, Skipped:     0, Total:    98, Duration: 14 s