dotnet coverage merge leads to filenames with the leading characters "/_/" in the filenames which bricks other tools

[DerGary]

I have got 2 projects in one solution. The first project is the source code and the second project is the xunit test project.

Reproduction Steps:

• dotnet test -c Release --collect:"Code Coverage"
• dotnet coverage merge ./**/*.coverage -f cobertura -o mergedResult.cobertura.xml

The unit test files are getting the absolute path as filenames:

the source code files are getting a relative path with leading /_/

Then Sonarqube for example can't find the files.

[jakubch1]

Thanks for reporting this. I've fixed issue in https://dev.azure.com/dnceng/public/_artifacts/feed/test-tools/NuGet/Microsoft.CodeCoverage/overview/17.10.0-preview-24120-01. I've added logic to resolve full paths by default. There is also configuration flag DeterministicReport to skip resolving and keep relative paths.

[DerGary]

@jakubch1 We still experience this issue with the latest version 17.11.3. Do you have an idea why?