Azure Devops + Coverlet + SonarQube shows 0% - .net-core

Question

Good morning,
Sorry to bother you, I have a problem and I have no leads.
I have a pipeline on Azure DevOps where I use coverlet to generate a code coverage report when I use the command "dotnet test".
Indeed, the report is well generated.
At first, in the "Prepare analysis on SonarQube" step, I set the variable "sonar.cs.opencover.reportsPaths="$(Agent.TempDirectory)/coverage.opencover.xml".
And yet the end in my SonarQube there is 0% code coverage... I don't know what to do or any leads...
Thanks

Answer 1

I cannot reproduce above issue. And it is hard to troubleshoot since you did not share your configuration for dotnet test task or sonarqube prepare task.
I created a test project and the coverage was successfully published to my sonarqube server. You can refer to below my steps.
1, create sonarqube server and configure my projectName and projectKey (I use azure sonarqube container instance, check here for details).
2, configure sonarqube service connection in azure devops.
3, create build pipeline. I use yaml pipeline.
In Prepare Analysis Configuration task, I choose to Use standalone scanner, and Mode is Manually provide configure. And I set variable sonar.cs.opencover.reportsPaths="$(Agent.TempDirectory)/coverage.opencover.xml".
Below screenshot is the task's setting in classic ui view.
In my dotnet test task I set the arguments as below, and specifically output the coverage result to $(Agent.TempDirectory)/ folder.
arguments: '--configuration $(buildConfiguration) /p:CollectCoverage=true /p:CoverletOutput=$(Agent.TempDirectory)/ /p:CoverletOutputFormat=opencover'
Below is the full content of my azure-pipelines.yml file.
trigger: none
jobs:
- job: 'Tests'
pool:
vmImage: windows-latest
variables:
buildConfiguration: 'Release'
continueOnError: true
steps:
- task: SonarQubePrepare#4
displayName: 'Prepare analysis on SonarQube'
inputs:
SonarQube: sonarlevi
scannerMode: CLI
configMode: manual
cliProjectKey: myproject2
cliProjectName: myproject2
extraProperties: |
sonar.cs.opencover.reportsPaths="$(Agent.TempDirectory)/coverage.opencover.xml"
- task: DotNetCoreCLI#2
inputs:
command: restore
projects: '**\*.csproj'
- task: DotNetCoreCLI#2
inputs:
command: custom
custom: tool
arguments: install --tool-path . dotnet-reportgenerator-globaltool
displayName: Install ReportGenerator tool
- task: DotNetCoreCLI#2
displayName: Test .NET
inputs:
command: test
projects: '**\*Test*.csproj'
publishTestResults: false
arguments: '--configuration $(buildConfiguration) /p:CollectCoverage=true /p:CoverletOutput=$(Agent.TempDirectory)/ /p:CoverletOutputFormat=opencover'
condition: succeededOrFailed()
- task: SonarQubeAnalyze#4
displayName: 'Run Code Analysis'
- task: SonarQubePublish#4
displayName: 'Publish Quality Gate Result'

Answer 2

I did a lot of things to finally managed to get the coverage working but I think that the problem was the "ProjectGUID" missing in each .csproj of my solution making the projects ignored by SonarQube scanner.
I also upgraded from SonarQube 6.2 to 8.1 at the same time which may have solved the problem.
My steps remained unchanged to make this work.