Resolved Need help for displaying coverage history

I am currently working on implementing the code coverage package on our projects on DevOps. The basic functionality works, but I cannot get the coverage history graph or risk hotspots to show in DevOps.

The current steps are as follows:
1. Run edit mode tests, publish file to folder.
2. Convert the Unity OpenCover files to Cobertura with ReportGenerator tool. historydir input is set, and each run creates a new xml file. reports input is set to opencov/EditMode subfolder xml.
3. Coverage results is published with PublishCodeCoverageResults task.

I have run the pipeline around 20-30 times with different variations of parameters, and also with disable.coverage.autogenerate. This did not seem to work either, and also removed the styling for the coverage page.

Any ideas or pointers on what to do?

 

Currently it looks something like this. Have also tried to add
generateHtmlReport;generateHtmlReportHistory and coverageHistoryPath to Unity arguments, but should not be needed as I understand it, as this is overriden by report generator anyway.

Code (CSharp):

1. - powershell: |
2.  
3.     $logFile = New-Item -Path .\editmode-test-run.log -ItemType File -Force
4.  
5.     $proc = Start-Process -FilePath $env:UNITY_EXE_PATH -PassThru -ArgumentList "
6.        -projectPath $env:PROJECT_PATH
7.        -runTests
8.        -testPlatform editmode
9.        -debugCodeOptimization
10.        -enableCodeCoverage
11.        -coverageResultsPath .\test-coverage-results
12.        -coverageOptions generateAdditionalMetrics;pathFilters:$env:COVERAGE_PATH_FILTERS
13.        -batchmode
14.        -logFile $($logFile.Name)
15.        -editorTestsResultFile .\test-editmode-default.xml"
16.  
17.     $ljob = Start-Job -ScriptBlock { param($log) Get-Content "$log" -Wait } -ArgumentList $logFile.FullName
18.  
19.     while (-not $proc.HasExited -and $ljob.HasMoreData)
20.     {
21.         Receive-Job $ljob
22.         Start-Sleep -Milliseconds 500
23.     }
24.     Receive-Job $ljob
25.  
26.     Stop-Job $ljob
27.  
28.     Remove-Job $ljob
29.     Stop-Process $proc
30.     exit $proc.ExitCode
31.   displayName: 'Run EditMode tests'
32.   env:
33.     UNITY_EXE_PATH: '${{parameters.unityInstallFolder}}$(unitygetprojectversion.projectVersion)${{parameters.unityEditorPath}}'
34.     PROJECT_PATH: ${{ parameters.projectPath }}
35.     COVERAGE_PATH_FILTERS: ${{ parameters.testCoveragePathFilters }}
36.  
37. - task: Palmmedia.reportgenerator.reportgenerator-build-release-task.reportgenerator@4
38.   displayName: 'Convert coverage report'
39.   inputs:
40.     reports: $(Build.SourcesDirectory)\test-coverage-results\*-opencov\EditMode\*.xml;
41.     targetdir: $(Build.SourcesDirectory)\test-coverage
42.     reporttypes: 'Cobertura'
43.     historydir: C:\coverage-history\${{parameters.packageName}}
44.     #customSettings: 'settings:renderPngFallBackImagesForHistoryCharts=true'
45.  
46. # Publish test results:
47. - task: PublishTestResults@2
48.   displayName: 'Publish test results'
49.   inputs:
50.     testResultsFormat: NUnit
51.     testResultsFiles: 'test*.xml'
52.     failTaskOnFailedTests: true
53.  
54. # Publish code coverage results
55. - task: PublishCodeCoverageResults@1
56.   displayName: 'Publish code coverage results'
57.   inputs:
58.     codeCoverageTool: 'cobertura'
59.     summaryFileLocation: '$(Build.SourcesDirectory)\test-coverage\Cobertura.xml'

 

After 47 runs of the pipeline it worked! I set disable.coverage.autogenerate to true, generated HtmlInline_AzureDevops;Cobertura reports from ReportGenerator, and added the reportDirectory in PublishCodeCoverageResults task.

 

As it is now, it works fine for our use case We just include everything in Packages folder by default (eg '+*/Packages/*'), with an optional parameter that can be sent in for special cases.